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annotate rust/hg-core/src/config/plain_info.rs @ 50818:28c0fcff24e5 stable

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rhg: fix the bug where sparse config is interpreted as relglob instead of glob relglob apparently (in contrast with relpath) matches everywhere in the tree, whereas glob only matches at the root. The python version interprets these patterns as "glob" (see "normalize(include, b'glob', ...)" in match.py)
author Arseniy Alekseyev <aalekseyev@janestreet.com>
date Thu, 10 Aug 2023 19:00:19 +0100
parents 467d9df98c68
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use crate::utils::files::get_bytes_from_os_string;
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2 use std::env;
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3
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4 /// Keeps information on whether plain mode is active.
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5 ///
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6 /// Plain mode means that all configuration variables which affect
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7 /// the behavior and output of Mercurial should be
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8 /// ignored. Additionally, the output should be stable,
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9 /// reproducible and suitable for use in scripts or applications.
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10 ///
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11 /// The only way to trigger plain mode is by setting either the
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12 /// `HGPLAIN' or `HGPLAINEXCEPT' environment variables.
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13 ///
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14 /// The return value can either be
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15 /// - False if HGPLAIN is not set, or feature is in HGPLAINEXCEPT
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16 /// - False if feature is disabled by default and not included in HGPLAIN
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17 /// - True otherwise
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18 #[derive(Clone)]
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19 pub struct PlainInfo {
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20 is_plain: bool,
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21 except: Vec<Vec<u8>>,
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22 }
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23
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24 impl PlainInfo {
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25 fn plain_except(except: Vec<Vec<u8>>) -> Self {
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26 PlainInfo {
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27 is_plain: true,
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28 except,
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29 }
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30 }
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31
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32 pub fn empty() -> PlainInfo {
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33 PlainInfo {
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34 is_plain: false,
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35 except: vec![],
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36 }
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37 }
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38
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39 pub fn from_env() -> PlainInfo {
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40 if let Some(except) = env::var_os("HGPLAINEXCEPT") {
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41 PlainInfo::plain_except(
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42 get_bytes_from_os_string(except)
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43 .split(|&byte| byte == b',')
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44 .map(|x| x.to_vec())
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45 .collect(),
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46 )
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47 } else {
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48 PlainInfo {
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49 is_plain: env::var_os("HGPLAIN").is_some(),
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50 except: vec![],
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51 }
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52 }
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53 }
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54
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55 pub fn is_feature_plain(&self, feature: &str) -> bool {
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56 return self.is_plain
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57 && !self
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58 .except
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59 .iter()
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60 .any(|exception| exception.as_slice() == feature.as_bytes());
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61 }
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62
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63 pub fn is_plain(&self) -> bool {
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64 self.is_plain
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65 }
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66
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67 pub fn plainalias(&self) -> bool {
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68 self.is_feature_plain("alias")
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69 }
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70 pub fn plainrevsetalias(&self) -> bool {
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71 self.is_feature_plain("revsetalias")
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72 }
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73 pub fn plaintemplatealias(&self) -> bool {
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74 self.is_feature_plain("templatealias")
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75 }
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76 pub fn plaintweakdefaults(&self) -> bool {
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77 self.is_feature_plain("tweakdefaults")
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78 }
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79 }