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annotate rust/hg-core/src/revlog/path_encode.rs @ 50147:362fe34702d5

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rhg: demonstrate a bug in path_encode The bug means that long filenames at the root of the tree are encoded incorrectly by rhg, so rhg crashes when trying to access them.
author Arseniy Alekseyev <aalekseyev@janestreet.com>
date Thu, 16 Feb 2023 14:54:34 +0000
parents e98fd81bb151
children 06659dea51b0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
47386
fad504cfc94b rust: Use a maintained crate for SHA-1 hashing
Simon Sapin <simon.sapin@octobus.net>
parents: 45545
diff changeset
1 use sha1::{Digest, Sha1};
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2
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3 #[derive(PartialEq, Debug)]
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4 #[allow(non_camel_case_types)]
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parents: 47386
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5 #[allow(clippy::upper_case_acronyms)]
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6 enum path_state {
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7 START, /* first byte of a path component */
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8 A, /* "AUX" */
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9 AU,
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10 THIRD, /* third of a 3-byte sequence, e.g. "AUX", "NUL" */
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11 C, /* "CON" or "COMn" */
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12 CO,
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13 COMLPT, /* "COM" or "LPT" */
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14 COMLPTn,
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15 L,
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16 LP,
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17 N,
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18 NU,
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19 P, /* "PRN" */
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20 PR,
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21 LDOT, /* leading '.' */
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22 DOT, /* '.' in a non-leading position */
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23 H, /* ".h" */
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24 HGDI, /* ".hg", ".d", or ".i" */
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25 SPACE,
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26 DEFAULT, /* byte of a path component after the first */
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27 }
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28
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29 /* state machine for dir-encoding */
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30 #[allow(non_camel_case_types)]
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31 #[allow(clippy::upper_case_acronyms)]
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32 enum dir_state {
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33 DDOT,
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34 DH,
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35 DHGDI,
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36 DDEFAULT,
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37 }
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38
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39 fn inset(bitset: &[u32; 8], c: u8) -> bool {
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40 bitset[(c as usize) >> 5] & (1 << (c & 31)) != 0
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41 }
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42
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43 fn charcopy(dest: Option<&mut [u8]>, destlen: &mut usize, c: u8) {
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44 if let Some(slice) = dest {
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45 slice[*destlen] = c
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46 }
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47 *destlen += 1
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48 }
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49
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50 fn memcopy(dest: Option<&mut [u8]>, destlen: &mut usize, src: &[u8]) {
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51 if let Some(slice) = dest {
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52 slice[*destlen..*destlen + src.len()].copy_from_slice(src)
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53 }
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54 *destlen += src.len();
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55 }
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56
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57 fn rewrap_option<'a, 'b: 'a>(
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58 x: &'a mut Option<&'b mut [u8]>,
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59 ) -> Option<&'a mut [u8]> {
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60 match x {
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61 None => None,
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62 Some(y) => Some(y),
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63 }
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64 }
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65
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66 fn hexencode(mut dest: Option<&mut [u8]>, destlen: &mut usize, c: u8) {
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67 let hexdigit = b"0123456789abcdef";
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68 charcopy(
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69 rewrap_option(&mut dest),
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70 destlen,
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71 hexdigit[(c as usize) >> 4],
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72 );
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73 charcopy(dest, destlen, hexdigit[(c as usize) & 15]);
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74 }
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75
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76 /* 3-byte escape: tilde followed by two hex digits */
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77 fn escape3(mut dest: Option<&mut [u8]>, destlen: &mut usize, c: u8) {
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78 charcopy(rewrap_option(&mut dest), destlen, b'~');
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79 hexencode(dest, destlen, c);
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80 }
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81
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82 fn encode_dir(mut dest: Option<&mut [u8]>, src: &[u8]) -> usize {
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83 let mut state = dir_state::DDEFAULT;
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84 let mut i = 0;
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85 let mut destlen = 0;
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86
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87 while i < src.len() {
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88 match state {
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89 dir_state::DDOT => match src[i] {
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90 b'd' | b'i' => {
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91 state = dir_state::DHGDI;
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92 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
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93 i += 1;
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94 }
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95 b'h' => {
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96 state = dir_state::DH;
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97 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
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98 i += 1;
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99 }
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100 _ => {
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101 state = dir_state::DDEFAULT;
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102 }
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103 },
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104 dir_state::DH => {
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105 if src[i] == b'g' {
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106 state = dir_state::DHGDI;
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107 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
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108 i += 1;
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109 } else {
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110 state = dir_state::DDEFAULT;
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111 }
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112 }
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113 dir_state::DHGDI => {
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114 if src[i] == b'/' {
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115 memcopy(rewrap_option(&mut dest), &mut destlen, b".hg");
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116 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
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117 i += 1;
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118 }
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119 state = dir_state::DDEFAULT;
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120 }
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121 dir_state::DDEFAULT => {
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122 if src[i] == b'.' {
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123 state = dir_state::DDOT
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124 }
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125 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
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126 i += 1;
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127 }
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128 }
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129 }
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130 destlen
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
131 }
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
132
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
133 fn _encode(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
134 twobytes: &[u32; 8],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
135 onebyte: &[u32; 8],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
136 mut dest: Option<&mut [u8]>,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
137 src: &[u8],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
138 encodedir: bool,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
139 ) -> usize {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
140 let mut state = path_state::START;
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
141 let mut i = 0;
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
142 let mut destlen = 0;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
143 let len = src.len();
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
144
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
145 while i < len {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
146 match state {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
147 path_state::START => match src[i] {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
148 b'/' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
149 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
150 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
151 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
152 b'.' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
153 state = path_state::LDOT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
154 escape3(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
155 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
156 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
157 b' ' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
158 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
159 escape3(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
160 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
161 }
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
162 b'a' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
163 state = path_state::A;
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
164 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
165 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
166 }
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
167 b'c' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
168 state = path_state::C;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
169 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
170 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
171 }
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
172 b'l' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
173 state = path_state::L;
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
174 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
175 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
176 }
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
177 b'n' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
178 state = path_state::N;
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
179 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
180 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
181 }
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
182 b'p' => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
183 state = path_state::P;
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
184 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
185 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
186 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
187 _ => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
188 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
189 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
190 },
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
191 path_state::A => {
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Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
192 if src[i] == b'u' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
193 state = path_state::AU;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
194 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
195 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
196 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
197 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
198 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
199 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
200 path_state::AU => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
201 if src[i] == b'x' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
202 state = path_state::THIRD;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
203 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
204 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
205 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
206 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
207 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
208 path_state::THIRD => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
209 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
210 match src[i] {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
211 b'.' | b'/' | b'\0' => escape3(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
212 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
213 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
214 src[i - 1],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
215 ),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
216 _ => i -= 1,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
217 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
218 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
219 path_state::C => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
220 if src[i] == b'o' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
221 state = path_state::CO;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
222 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
223 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
224 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
225 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
226 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
227 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
228 path_state::CO => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
229 if src[i] == b'm' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
230 state = path_state::COMLPT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
231 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
232 } else if src[i] == b'n' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
233 state = path_state::THIRD;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
234 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
235 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
236 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
237 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
238 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
239 path_state::COMLPT => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
240 if src[i] >= b'1' && src[i] <= b'9' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
241 state = path_state::COMLPTn;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
242 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
243 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
244 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
245 charcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
246 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
247 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
248 src[i - 1],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
249 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
250 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
251 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
252 path_state::COMLPTn => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
253 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
254 match src[i] {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
255 b'.' | b'/' | b'\0' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
256 escape3(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
257 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
258 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
259 src[i - 2],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
260 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
261 charcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
262 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
263 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
264 src[i - 1],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
265 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
266 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
267 _ => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
268 memcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
269 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
270 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
271 &src[i - 2..i],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
272 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
273 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
274 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
275 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
276 path_state::L => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
277 if src[i] == b'p' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
278 state = path_state::LP;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
279 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
280 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
281 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
282 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
283 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
284 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
285 path_state::LP => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
286 if src[i] == b't' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
287 state = path_state::COMLPT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
288 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
289 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
290 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
291 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
292 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
293 path_state::N => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
294 if src[i] == b'u' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
295 state = path_state::NU;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
296 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
297 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
298 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
299 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
300 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
301 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
302 path_state::NU => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
303 if src[i] == b'l' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
304 state = path_state::THIRD;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
305 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
306 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
307 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
308 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
309 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
310 path_state::P => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
311 if src[i] == b'r' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
312 state = path_state::PR;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
313 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
314 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
315 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
316 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
317 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
318 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
319 path_state::PR => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
320 if src[i] == b'n' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
321 state = path_state::THIRD;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
322 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
323 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
324 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
325 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
326 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
327 path_state::LDOT => match src[i] {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
328 b'd' | b'i' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
329 state = path_state::HGDI;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
330 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
331 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
332 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
333 b'h' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
334 state = path_state::H;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
335 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
336 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
337 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
338 _ => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
339 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
340 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
341 },
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
342 path_state::DOT => match src[i] {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
343 b'/' | b'\0' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
344 state = path_state::START;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
345 memcopy(rewrap_option(&mut dest), &mut destlen, b"~2e");
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
346 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
347 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
348 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
349 b'd' | b'i' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
350 state = path_state::HGDI;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
351 charcopy(rewrap_option(&mut dest), &mut destlen, b'.');
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
352 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
353 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
354 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
355 b'h' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
356 state = path_state::H;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
357 memcopy(rewrap_option(&mut dest), &mut destlen, b".h");
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
358 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
359 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
360 _ => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
361 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
362 charcopy(rewrap_option(&mut dest), &mut destlen, b'.');
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
363 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
364 },
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
365 path_state::H => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
366 if src[i] == b'g' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
367 state = path_state::HGDI;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
368 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
369 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
370 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
371 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
372 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
373 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
374 path_state::HGDI => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
375 if src[i] == b'/' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
376 state = path_state::START;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
377 if encodedir {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
378 memcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
379 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
380 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
381 b".hg",
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
382 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
383 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
384 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
385 i += 1
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
386 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
387 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
388 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
389 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
390 path_state::SPACE => match src[i] {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
391 b'/' | b'\0' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
392 state = path_state::START;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
393 memcopy(rewrap_option(&mut dest), &mut destlen, b"~20");
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
394 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
395 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
396 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
397 _ => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
398 state = path_state::DEFAULT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
399 charcopy(rewrap_option(&mut dest), &mut destlen, b' ');
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
400 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
401 },
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
402 path_state::DEFAULT => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
403 while i != len && inset(onebyte, src[i]) {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
404 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
405 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
406 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
407 if i == len {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
408 break;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
409 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
410 match src[i] {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
411 b'.' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
412 state = path_state::DOT;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
413 i += 1
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
414 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
415 b' ' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
416 state = path_state::SPACE;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
417 i += 1
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
418 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
419 b'/' => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
420 state = path_state::START;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
421 charcopy(rewrap_option(&mut dest), &mut destlen, b'/');
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
422 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
423 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
424 _ => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
425 if inset(onebyte, src[i]) {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
426 loop {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
427 charcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
428 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
429 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
430 src[i],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
431 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
432 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
433 if !(i < len && inset(onebyte, src[i])) {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
434 break;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
435 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
436 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
437 } else if inset(twobytes, src[i]) {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
438 let c = src[i];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
439 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
440 charcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
441 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
442 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
443 b'_',
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
444 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
445 charcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
446 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
447 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
448 if c == b'_' { b'_' } else { c + 32 },
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
449 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
450 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
451 escape3(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
452 rewrap_option(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
453 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
454 src[i],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
455 );
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
456 i += 1;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
457 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
458 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
459 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
460 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
461 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
462 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
463 match state {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
464 path_state::START => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
465 path_state::A => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
466 path_state::AU => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
467 path_state::THIRD => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
468 escape3(rewrap_option(&mut dest), &mut destlen, src[i - 1])
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
469 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
470 path_state::C => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
471 path_state::CO => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
472 path_state::COMLPT => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
473 charcopy(rewrap_option(&mut dest), &mut destlen, src[i - 1])
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
474 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
475 path_state::COMLPTn => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
476 escape3(rewrap_option(&mut dest), &mut destlen, src[i - 2]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
477 charcopy(rewrap_option(&mut dest), &mut destlen, src[i - 1]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
478 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
479 path_state::L => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
480 path_state::LP => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
481 path_state::N => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
482 path_state::NU => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
483 path_state::P => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
484 path_state::PR => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
485 path_state::LDOT => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
486 path_state::DOT => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
487 memcopy(rewrap_option(&mut dest), &mut destlen, b"~2e");
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
488 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
489 path_state::H => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
490 path_state::HGDI => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
491 path_state::SPACE => {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
492 memcopy(rewrap_option(&mut dest), &mut destlen, b"~20");
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
493 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
494 path_state::DEFAULT => (),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
495 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
496 destlen
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
497 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
498
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
499 fn basic_encode(dest: Option<&mut [u8]>, src: &[u8]) -> usize {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
500 let twobytes: [u32; 8] = [0, 0, 0x87ff_fffe, 0, 0, 0, 0, 0];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
501 let onebyte: [u32; 8] =
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
502 [1, 0x2bff_3bfa, 0x6800_0001, 0x2fff_ffff, 0, 0, 0, 0];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
503 _encode(&twobytes, &onebyte, dest, src, true)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
504 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
505
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
506 const MAXSTOREPATHLEN: usize = 120;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
507
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
508 fn lower_encode(mut dest: Option<&mut [u8]>, src: &[u8]) -> usize {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
509 let onebyte: [u32; 8] =
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
510 [1, 0x2bff_fbfb, 0xe800_0001, 0x2fff_ffff, 0, 0, 0, 0];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
511 let lower: [u32; 8] = [0, 0, 0x07ff_fffe, 0, 0, 0, 0, 0];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
512 let mut destlen = 0;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
513 for c in src {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
514 if inset(&onebyte, *c) {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
515 charcopy(rewrap_option(&mut dest), &mut destlen, *c)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
516 } else if inset(&lower, *c) {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
517 charcopy(rewrap_option(&mut dest), &mut destlen, *c + 32)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
518 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
519 escape3(rewrap_option(&mut dest), &mut destlen, *c)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
520 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
521 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
522 destlen
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
523 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
524
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
525 fn aux_encode(dest: Option<&mut [u8]>, src: &[u8]) -> usize {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
526 let twobytes = [0; 8];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
527 let onebyte: [u32; 8] = [!0, 0xffff_3ffe, !0, !0, !0, !0, !0, !0];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
528 _encode(&twobytes, &onebyte, dest, src, false)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
529 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
530
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
531 fn hash_mangle(src: &[u8], sha: &[u8]) -> Vec<u8> {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
532 let dirprefixlen = 8;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
533 let maxshortdirslen = 68;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
534 let mut destlen = 0;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
535
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
536 let last_slash = src.iter().rposition(|b| *b == b'/');
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
537 let last_dot: Option<usize> = {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
538 let s = last_slash.unwrap_or(0);
50003
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47386
diff changeset
539 src[s..].iter().rposition(|b| *b == b'.').map(|i| i + s)
45545
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
540 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
541
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
542 let mut dest = vec![0; MAXSTOREPATHLEN];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
543 memcopy(Some(&mut dest), &mut destlen, b"dh/");
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
544
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
545 {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
546 let mut first = true;
50003
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47386
diff changeset
547 for slice in
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47386
diff changeset
548 src[..last_slash.unwrap_or(src.len())].split(|b| *b == b'/')
45545
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
549 {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
550 let slice = &slice[..std::cmp::min(slice.len(), dirprefixlen)];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
551 if destlen + (slice.len() + if first { 0 } else { 1 })
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
552 > maxshortdirslen + 3
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
553 {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
554 break;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
555 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
556 if !first {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
557 charcopy(Some(&mut dest), &mut destlen, b'/')
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
558 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
559 memcopy(Some(&mut dest), &mut destlen, slice);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
560 if dest[destlen - 1] == b'.' || dest[destlen - 1] == b' ' {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
561 dest[destlen - 1] = b'_'
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
562 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
563 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
564 first = false;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
565 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
566 if !first {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
567 charcopy(Some(&mut dest), &mut destlen, b'/');
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
568 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
569 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
570
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
571 let used = destlen + 40 + {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
572 if let Some(l) = last_dot {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
573 src.len() - l
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
574 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
575 0
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
576 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
577 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
578
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
579 if MAXSTOREPATHLEN > used {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
580 let slop = MAXSTOREPATHLEN - used;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
581 let basenamelen = match last_slash {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
582 Some(l) => src.len() - l - 1,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
583 None => src.len(),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
584 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
585 let basenamelen = std::cmp::min(basenamelen, slop);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
586 if basenamelen > 0 {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
587 let start = match last_slash {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
588 Some(l) => l + 1,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
589 None => 0,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
590 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
591 memcopy(
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
592 Some(&mut dest),
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
593 &mut destlen,
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
594 &src[start..][..basenamelen],
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
595 )
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
596 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
597 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
598 for c in sha {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
599 hexencode(Some(&mut dest), &mut destlen, *c);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
600 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
601 if let Some(l) = last_dot {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
602 memcopy(Some(&mut dest), &mut destlen, &src[l..]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
603 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
604 if destlen == dest.len() {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
605 dest
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
606 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
607 // sometimes the path are shorter than MAXSTOREPATHLEN
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
608 dest[..destlen].to_vec()
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
609 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
610 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
611
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
612 const MAXENCODE: usize = 4096 * 4;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
613 fn hash_encode(src: &[u8]) -> Vec<u8> {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
614 let dired = &mut [0; MAXENCODE];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
615 let lowered = &mut [0; MAXENCODE];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
616 let auxed = &mut [0; MAXENCODE];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
617 let baselen = (src.len() - 5) * 3;
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
618 if baselen >= MAXENCODE {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
619 panic!("path_encode::hash_encore: string too long: {}", baselen)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
620 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
621 let dirlen = encode_dir(Some(&mut dired[..]), src);
47386
fad504cfc94b rust: Use a maintained crate for SHA-1 hashing
Simon Sapin <simon.sapin@octobus.net>
parents: 45545
diff changeset
622 let sha = Sha1::digest(&dired[..dirlen]);
45545
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
623 let lowerlen = lower_encode(Some(&mut lowered[..]), &dired[..dirlen][5..]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
624 let auxlen = aux_encode(Some(&mut auxed[..]), &lowered[..lowerlen]);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
625 hash_mangle(&auxed[..auxlen], &sha)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
626 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
627
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
628 pub fn path_encode(path: &[u8]) -> Vec<u8> {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
629 let newlen = if path.len() <= MAXSTOREPATHLEN {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
630 basic_encode(None, path)
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
631 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
632 MAXSTOREPATHLEN + 1
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
633 };
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
634 if newlen <= MAXSTOREPATHLEN {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
635 if newlen == path.len() {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
636 path.to_vec()
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
637 } else {
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
638 let mut res = vec![0; newlen];
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
639 basic_encode(Some(&mut res), path);
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
640 res
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
641 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
642 } else {
50003
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47386
diff changeset
643 hash_encode(path)
45545
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
644 }
aebc976fd7d5 hg-core: add path_encode
Antoine Cezar <antoine.cezar@octobus.net>
parents:
diff changeset
645 }
50147
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
646
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
647 #[cfg(test)]
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
648 mod tests {
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
649 use super::*;
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
650 use crate::utils::hg_path::HgPathBuf;
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
651
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
652 // expected failure
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
653 #[test]
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
654 #[should_panic]
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
655 fn test_long_filename_at_root() {
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
656 let input = b"data/ABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJ.i";
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
657 let expected = b"dh/abcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghij.i708243a2237a7afae259ea3545a72a2ef11c247b.i";
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
658 let res = path_encode(input);
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
659 assert_eq!(
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
660 HgPathBuf::from_bytes(&res),
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
661 HgPathBuf::from_bytes(expected)
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
662 );
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
663 }
362fe34702d5 rhg: demonstrate a bug in path_encode
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50003
diff changeset
664 }