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annotate rust/hg-core/src/config/config_items.rs @ 51193:f95f70cf2ee2

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rust-index: check rindex and cindex return the same get_rev This is a temporary safeguard while we synchronize both indexes.
author Rapha?l Gom?s <rgomes@octobus.net>
date Thu, 29 Jun 2023 11:37:19 +0200
parents 8343947af6a7
children 0dbf6a5ccf5f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 //! Code for parsing default Mercurial config items.
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2 use itertools::Itertools;
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3 use serde::Deserialize;
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4
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5 use crate::{errors::HgError, exit_codes, FastHashMap};
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6
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7 /// Corresponds to the structure of `mercurial/configitems.toml`.
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8 #[derive(Debug, Deserialize)]
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9 pub struct ConfigItems {
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10 items: Vec<DefaultConfigItem>,
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11 templates: FastHashMap<String, Vec<TemplateItem>>,
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12 #[serde(rename = "template-applications")]
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13 template_applications: Vec<TemplateApplication>,
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14 }
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15
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16 /// Corresponds to a config item declaration in `mercurial/configitems.toml`.
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17 #[derive(Clone, Debug, PartialEq, Deserialize)]
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18 #[serde(try_from = "RawDefaultConfigItem")]
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19 pub struct DefaultConfigItem {
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20 /// Section of the config the item is in (e.g. `[merge-tools]`)
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21 section: String,
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22 /// Name of the item (e.g. `meld.gui`)
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23 name: String,
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24 /// Default value (can be dynamic, see [`DefaultConfigItemType`])
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25 default: Option<DefaultConfigItemType>,
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26 /// If the config option is generic (e.g. `merge-tools.*`), defines
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27 /// the priority of this item relative to other generic items.
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28 /// If we're looking for <pattern>, then all generic items within the same
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29 /// section will be sorted by order of priority, and the first regex match
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30 /// against `name` is returned.
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31 #[serde(default)]
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32 priority: Option<isize>,
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33 /// Aliases, if any. Each alias is a tuple of `(section, name)` for each
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34 /// option that is aliased to this one.
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35 #[serde(default)]
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36 alias: Vec<(String, String)>,
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37 /// Whether the config item is marked as experimental
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38 #[serde(default)]
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39 experimental: bool,
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40 /// The (possibly empty) docstring for the item
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41 #[serde(default)]
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42 documentation: String,
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43 /// Whether the item is part of an in-core extension. This allows us to
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44 /// hide them if the extension is not enabled, to preserve legacy
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45 /// behavior.
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46 #[serde(default)]
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47 in_core_extension: Option<String>,
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48 }
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49
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50 /// Corresponds to the raw (i.e. on disk) structure of config items. Used as
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51 /// an intermediate step in deserialization.
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52 #[derive(Clone, Debug, Deserialize)]
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53 struct RawDefaultConfigItem {
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54 section: String,
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55 name: String,
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56 default: Option<toml::Value>,
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57 #[serde(rename = "default-type")]
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58 default_type: Option<String>,
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59 #[serde(default)]
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60 priority: isize,
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61 #[serde(default)]
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62 generic: bool,
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63 #[serde(default)]
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64 alias: Vec<(String, String)>,
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65 #[serde(default)]
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66 experimental: bool,
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67 #[serde(default)]
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68 documentation: String,
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69 #[serde(default)]
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70 in_core_extension: Option<String>,
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71 }
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72
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73 impl TryFrom<RawDefaultConfigItem> for DefaultConfigItem {
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74 type Error = HgError;
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75
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76 fn try_from(value: RawDefaultConfigItem) -> Result<Self, Self::Error> {
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77 Ok(Self {
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78 section: value.section,
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79 name: value.name,
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80 default: raw_default_to_concrete(
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81 value.default_type,
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82 value.default,
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83 )?,
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84 priority: if value.generic {
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85 Some(value.priority)
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86 } else {
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87 None
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88 },
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89 alias: value.alias,
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90 experimental: value.experimental,
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91 documentation: value.documentation,
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92 in_core_extension: value.in_core_extension,
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93 })
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94 }
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95 }
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96
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97 impl DefaultConfigItem {
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98 fn is_generic(&self) -> bool {
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99 self.priority.is_some()
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100 }
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101
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102 pub fn in_core_extension(&self) -> Option<&str> {
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103 self.in_core_extension.as_deref()
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104 }
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105
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106 pub fn section(&self) -> &str {
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107 self.section.as_ref()
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108 }
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109 }
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110
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111 impl<'a> TryFrom<&'a DefaultConfigItem> for Option<&'a str> {
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112 type Error = HgError;
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113
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114 fn try_from(
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115 value: &'a DefaultConfigItem,
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116 ) -> Result<Option<&'a str>, Self::Error> {
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117 match &value.default {
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118 Some(default) => {
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119 let err = HgError::abort(
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120 format!(
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121 "programming error: wrong query on config item '{}.{}'",
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122 value.section,
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123 value.name
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124 ),
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125 exit_codes::ABORT,
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126 Some(format!(
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127 "asked for '&str', type of default is '{}'",
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128 default.type_str()
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129 )),
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130 );
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131 match default {
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132 DefaultConfigItemType::Primitive(toml::Value::String(
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133 s,
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134 )) => Ok(Some(s)),
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135 _ => Err(err),
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136 }
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137 }
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138 None => Ok(None),
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139 }
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140 }
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141 }
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142
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143 impl<'a> TryFrom<&'a DefaultConfigItem> for Option<&'a [u8]> {
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144 type Error = HgError;
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145
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146 fn try_from(
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147 value: &'a DefaultConfigItem,
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148 ) -> Result<Option<&'a [u8]>, Self::Error> {
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149 match &value.default {
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150 Some(default) => {
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151 let err = HgError::abort(
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152 format!(
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153 "programming error: wrong query on config item '{}.{}'",
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154 value.section,
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155 value.name
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156 ),
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157 exit_codes::ABORT,
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158 Some(format!(
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159 "asked for bytes, type of default is '{}', \
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160 which cannot be interpreted as bytes",
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161 default.type_str()
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162 )),
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163 );
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164 match default {
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165 DefaultConfigItemType::Primitive(p) => {
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166 Ok(p.as_str().map(str::as_bytes))
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167 }
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168 _ => Err(err),
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169 }
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170 }
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171 None => Ok(None),
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172 }
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173 }
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174 }
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175
50760
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176 impl TryFrom<&DefaultConfigItem> for Option<bool> {
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177 type Error = HgError;
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178
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179 fn try_from(value: &DefaultConfigItem) -> Result<Self, Self::Error> {
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180 match &value.default {
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181 Some(default) => {
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182 let err = HgError::abort(
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183 format!(
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184 "programming error: wrong query on config item '{}.{}'",
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185 value.section,
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186 value.name
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187 ),
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188 exit_codes::ABORT,
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189 Some(format!(
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190 "asked for 'bool', type of default is '{}'",
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191 default.type_str()
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192 )),
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193 );
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194 match default {
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195 DefaultConfigItemType::Primitive(
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196 toml::Value::Boolean(b),
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197 ) => Ok(Some(*b)),
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198 _ => Err(err),
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199 }
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200 }
50980
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201 None => Ok(None),
50760
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202 }
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203 }
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204 }
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205
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206 impl TryFrom<&DefaultConfigItem> for Option<u32> {
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207 type Error = HgError;
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208
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209 fn try_from(value: &DefaultConfigItem) -> Result<Self, Self::Error> {
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210 match &value.default {
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211 Some(default) => {
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212 let err = HgError::abort(
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213 format!(
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214 "programming error: wrong query on config item '{}.{}'",
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215 value.section,
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216 value.name
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217 ),
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218 exit_codes::ABORT,
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219 Some(format!(
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220 "asked for 'u32', type of default is '{}'",
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221 default.type_str()
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222 )),
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223 );
f8412da86d05 rust-config: add support for default config items
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224 match default {
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225 DefaultConfigItemType::Primitive(
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226 toml::Value::Integer(b),
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227 ) => {
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228 Ok(Some((*b).try_into().expect("TOML integer to u32")))
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229 }
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230 _ => Err(err),
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231 }
f8412da86d05 rust-config: add support for default config items
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232 }
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233 None => Ok(None),
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234 }
f8412da86d05 rust-config: add support for default config items
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235 }
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236 }
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237
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238 impl TryFrom<&DefaultConfigItem> for Option<u64> {
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239 type Error = HgError;
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240
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241 fn try_from(value: &DefaultConfigItem) -> Result<Self, Self::Error> {
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242 match &value.default {
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243 Some(default) => {
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244 let err = HgError::abort(
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245 format!(
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246 "programming error: wrong query on config item '{}.{}'",
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247 value.section,
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248 value.name
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diff changeset
249 ),
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250 exit_codes::ABORT,
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251 Some(format!(
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252 "asked for 'u64', type of default is '{}'",
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diff changeset
253 default.type_str()
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diff changeset
254 )),
f8412da86d05 rust-config: add support for default config items
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diff changeset
255 );
f8412da86d05 rust-config: add support for default config items
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256 match default {
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257 DefaultConfigItemType::Primitive(
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258 toml::Value::Integer(b),
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
259 ) => {
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260 Ok(Some((*b).try_into().expect("TOML integer to u64")))
f8412da86d05 rust-config: add support for default config items
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diff changeset
261 }
f8412da86d05 rust-config: add support for default config items
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diff changeset
262 _ => Err(err),
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
263 }
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
264 }
f8412da86d05 rust-config: add support for default config items
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265 None => Ok(None),
f8412da86d05 rust-config: add support for default config items
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diff changeset
266 }
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
267 }
f8412da86d05 rust-config: add support for default config items
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268 }
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269
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270 /// Allows abstracting over more complex default values than just primitives.
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271 /// The former `configitems.py` contained some dynamic code that is encoded
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272 /// in this enum.
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273 #[derive(Debug, PartialEq, Clone, Deserialize)]
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274 pub enum DefaultConfigItemType {
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275 /// Some primitive type (string, integer, boolean)
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276 Primitive(toml::Value),
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277 /// A dynamic value that will be given by the code at runtime
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278 Dynamic,
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279 /// An lazily-returned array (possibly only relevant in the Python impl)
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280 /// Example: `lambda: [b"zstd", b"zlib"]`
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281 Lambda(Vec<String>),
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282 /// For now, a special case for `web.encoding` that points to the
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283 /// `encoding.encoding` module in the Python impl so that local encoding
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284 /// is correctly resolved at runtime
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285 LazyModule(String),
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286 ListType,
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287 }
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288
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289 impl DefaultConfigItemType {
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290 pub fn type_str(&self) -> &str {
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291 match self {
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292 DefaultConfigItemType::Primitive(primitive) => {
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293 primitive.type_str()
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294 }
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295 DefaultConfigItemType::Dynamic => "dynamic",
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296 DefaultConfigItemType::Lambda(_) => "lambda",
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297 DefaultConfigItemType::LazyModule(_) => "lazy_module",
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298 DefaultConfigItemType::ListType => "list_type",
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299 }
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300 }
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301 }
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302
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303 /// Most of the fields are shared with [`DefaultConfigItem`].
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304 #[derive(Debug, Clone, Deserialize)]
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305 #[serde(try_from = "RawTemplateItem")]
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306 struct TemplateItem {
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307 suffix: String,
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308 default: Option<DefaultConfigItemType>,
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309 priority: Option<isize>,
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310 #[serde(default)]
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311 alias: Vec<(String, String)>,
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312 #[serde(default)]
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313 experimental: bool,
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314 #[serde(default)]
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315 documentation: String,
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316 }
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317
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318 /// Corresponds to the raw (i.e. on disk) representation of a template item.
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319 /// Used as an intermediate step in deserialization.
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320 #[derive(Clone, Debug, Deserialize)]
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321 struct RawTemplateItem {
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322 suffix: String,
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323 default: Option<toml::Value>,
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324 #[serde(rename = "default-type")]
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325 default_type: Option<String>,
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326 #[serde(default)]
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327 priority: isize,
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328 #[serde(default)]
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329 generic: bool,
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330 #[serde(default)]
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331 alias: Vec<(String, String)>,
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332 #[serde(default)]
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333 experimental: bool,
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334 #[serde(default)]
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335 documentation: String,
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336 }
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337
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338 impl TemplateItem {
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339 fn into_default_item(
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340 self,
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341 application: TemplateApplication,
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342 ) -> DefaultConfigItem {
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343 DefaultConfigItem {
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344 section: application.section,
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345 name: application
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346 .prefix
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347 .map(|prefix| format!("{}.{}", prefix, self.suffix))
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348 .unwrap_or(self.suffix),
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349 default: self.default,
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350 priority: self.priority,
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351 alias: self.alias,
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352 experimental: self.experimental,
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353 documentation: self.documentation,
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354 in_core_extension: None,
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355 }
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356 }
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357 }
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358
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359 impl TryFrom<RawTemplateItem> for TemplateItem {
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360 type Error = HgError;
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361
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362 fn try_from(value: RawTemplateItem) -> Result<Self, Self::Error> {
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363 Ok(Self {
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364 suffix: value.suffix,
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365 default: raw_default_to_concrete(
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366 value.default_type,
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367 value.default,
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368 )?,
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369 priority: if value.generic {
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370 Some(value.priority)
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371 } else {
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372 None
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373 },
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374 alias: value.alias,
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375 experimental: value.experimental,
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376 documentation: value.documentation,
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377 })
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378 }
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379 }
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380
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381 /// Transforms the on-disk string-based representation of complex default types
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382 /// to the concrete [`DefaultconfigItemType`].
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383 fn raw_default_to_concrete(
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384 default_type: Option<String>,
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385 default: Option<toml::Value>,
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386 ) -> Result<Option<DefaultConfigItemType>, HgError> {
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387 Ok(match default_type.as_deref() {
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388 None => default.as_ref().map(|default| {
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389 DefaultConfigItemType::Primitive(default.to_owned())
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390 }),
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391 Some("dynamic") => Some(DefaultConfigItemType::Dynamic),
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392 Some("list_type") => Some(DefaultConfigItemType::ListType),
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393 Some("lambda") => match &default {
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394 Some(default) => Some(DefaultConfigItemType::Lambda(
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395 default.to_owned().try_into().map_err(|e| {
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396 HgError::abort(
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397 e.to_string(),
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398 exit_codes::ABORT,
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399 Some("Check 'mercurial/configitems.toml'".into()),
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400 )
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401 })?,
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402 )),
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403 None => {
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404 return Err(HgError::abort(
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405 "lambda defined with no return value".to_string(),
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diff changeset
406 exit_codes::ABORT,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
407 Some("Check 'mercurial/configitems.toml'".into()),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
408 ))
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
409 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
410 },
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
411 Some("lazy_module") => match &default {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
412 Some(default) => {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
413 Some(DefaultConfigItemType::LazyModule(match default {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
414 toml::Value::String(module) => module.to_owned(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
415 _ => {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
416 return Err(HgError::abort(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
417 "lazy_module module name should be a string"
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
418 .to_string(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
419 exit_codes::ABORT,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
420 Some("Check 'mercurial/configitems.toml'".into()),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
421 ))
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
422 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
423 }))
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
424 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
425 None => {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
426 return Err(HgError::abort(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
427 "lazy_module should have a default value".to_string(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
428 exit_codes::ABORT,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
429 Some("Check 'mercurial/configitems.toml'".into()),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
430 ))
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
431 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
432 },
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
433 Some(invalid) => {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
434 return Err(HgError::abort(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
435 format!("invalid default_type '{}'", invalid),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
436 exit_codes::ABORT,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
437 Some("Check 'mercurial/configitems.toml'".into()),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
438 ))
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
439 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
440 })
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
441 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
442
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
443 #[derive(Debug, Clone, Deserialize)]
f8412da86d05 rust-config: add support for default config items
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diff changeset
444 struct TemplateApplication {
f8412da86d05 rust-config: add support for default config items
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diff changeset
445 template: String,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
446 section: String,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
447 #[serde(default)]
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
448 prefix: Option<String>,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
449 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
450
f8412da86d05 rust-config: add support for default config items
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diff changeset
451 /// Represents the (dynamic) set of default core Mercurial config items from
f8412da86d05 rust-config: add support for default config items
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diff changeset
452 /// `mercurial/configitems.toml`.
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
453 #[derive(Clone, Debug, Default)]
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
454 pub struct DefaultConfig {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
455 /// Mapping of section -> (mapping of name -> item)
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
456 items: FastHashMap<String, FastHashMap<String, DefaultConfigItem>>,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
457 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
458
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
459 impl DefaultConfig {
f8412da86d05 rust-config: add support for default config items
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diff changeset
460 pub fn empty() -> DefaultConfig {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
461 Self {
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
462 items: Default::default(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
463 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
464 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
465
f8412da86d05 rust-config: add support for default config items
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diff changeset
466 /// Returns `Self`, given the contents of `mercurial/configitems.toml`
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
467 #[logging_timer::time("trace")]
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
468 pub fn from_contents(contents: &str) -> Result<Self, HgError> {
f8412da86d05 rust-config: add support for default config items
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parents:
diff changeset
469 let mut from_file: ConfigItems =
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
470 toml::from_str(contents).map_err(|e| {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
471 HgError::abort(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
472 e.to_string(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
473 exit_codes::ABORT,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
474 Some("Check 'mercurial/configitems.toml'".into()),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
475 )
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
476 })?;
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
477
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
478 let mut flat_items = from_file.items;
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
479
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
480 for application in from_file.template_applications.drain(..) {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
481 match from_file.templates.get(&application.template) {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
482 None => return Err(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
483 HgError::abort(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
484 format!(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
485 "template application refers to undefined template '{}'",
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
486 application.template
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
487 ),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
488 exit_codes::ABORT,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
489 Some("Check 'mercurial/configitems.toml'".into())
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
490 )
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
491 ),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
492 Some(template_items) => {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
493 for template_item in template_items {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
494 flat_items.push(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
495 template_item
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
496 .clone()
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
497 .into_default_item(application.clone()),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
498 )
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
499 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
500 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
501 };
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
502 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
503
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
504 let items = flat_items.into_iter().fold(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
505 FastHashMap::default(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
506 |mut acc, item| {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
507 acc.entry(item.section.to_owned())
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
508 .or_insert_with(|| {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
509 let mut section = FastHashMap::default();
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
510 section.insert(item.name.to_owned(), item.to_owned());
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
511 section
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
512 })
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
513 .insert(item.name.to_owned(), item);
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
514 acc
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
515 },
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
516 );
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
517
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
518 Ok(Self { items })
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
519 }
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
520
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
521 /// Return the default config item that matches `section` and `item`.
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
522 pub fn get(
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
523 &self,
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
524 section: &[u8],
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
525 item: &[u8],
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
526 ) -> Option<&DefaultConfigItem> {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
527 // Core items must be valid UTF-8
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
528 let section = String::from_utf8_lossy(section);
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
529 let section_map = self.items.get(section.as_ref())?;
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
530 let item_name_lossy = String::from_utf8_lossy(item);
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
531 match section_map.get(item_name_lossy.as_ref()) {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
532 Some(item) => Some(item),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
533 None => {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
534 for generic_item in section_map
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
535 .values()
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
536 .filter(|item| item.is_generic())
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
537 .sorted_by_key(|item| match item.priority {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
538 Some(priority) => (priority, &item.name),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
539 _ => unreachable!(),
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
540 })
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
541 {
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
542 if regex::bytes::Regex::new(&generic_item.name)
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
543 .expect("invalid regex in configitems")
f8412da86d05 rust-config: add support for default config items
Rapha?l Gom?s <rgomes@octobus.net>
parents:
diff changeset
544 .is_match(item)
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545 {
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546 return Some(generic_item);
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547 }
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548 }
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549 None
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550 }
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551 }
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552 }
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553 }
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554
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555 #[cfg(test)]
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556 mod tests {
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557 use crate::config::config_items::{
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558 DefaultConfigItem, DefaultConfigItemType,
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559 };
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560
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561 use super::DefaultConfig;
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562
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563 #[test]
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564 fn test_config_read() {
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565 let contents = r#"
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diff changeset
566 [[items]]
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567 section = "alias"
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568 name = "abcd.*"
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diff changeset
569 default = 3
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570 generic = true
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571 priority = -1
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572
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573 [[items]]
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574 section = "alias"
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575 name = ".*"
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576 default-type = "dynamic"
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577 generic = true
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578
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diff changeset
579 [[items]]
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580 section = "cmdserver"
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581 name = "track-log"
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582 default-type = "lambda"
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583 default = [ "chgserver", "cmdserver", "repocache",]
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584
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585 [[items]]
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586 section = "chgserver"
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587 name = "idletimeout"
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588 default = 3600
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589
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diff changeset
590 [[items]]
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591 section = "cmdserver"
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diff changeset
592 name = "message-encodings"
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593 default-type = "list_type"
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diff changeset
594
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diff changeset
595 [[items]]
f8412da86d05 rust-config: add support for default config items
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596 section = "web"
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597 name = "encoding"
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598 default-type = "lazy_module"
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599 default = "encoding.encoding"
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diff changeset
600
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601 [[items]]
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602 section = "command-templates"
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603 name = "graphnode"
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604 alias = [["ui", "graphnodetemplate"]]
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605 documentation = """This is a docstring.
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606 This is another line \
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607 but this is not."""
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608
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609 [[items]]
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610 section = "censor"
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611 name = "policy"
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612 default = "abort"
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diff changeset
613 experimental = true
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diff changeset
614
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diff changeset
615 [[template-applications]]
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616 template = "diff-options"
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617 section = "commands"
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618 prefix = "revert.interactive"
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diff changeset
619
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620 [[template-applications]]
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diff changeset
621 template = "diff-options"
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diff changeset
622 section = "diff"
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diff changeset
623
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624 [templates]
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625 [[templates.diff-options]]
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626 suffix = "nodates"
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diff changeset
627 default = false
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628
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629 [[templates.diff-options]]
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630 suffix = "showfunc"
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631 default = false
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632
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diff changeset
633 [[templates.diff-options]]
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634 suffix = "unified"
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diff changeset
635 "#;
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636 let res = DefaultConfig::from_contents(contents);
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637 let config = match res {
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638 Ok(config) => config,
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639 Err(e) => panic!("{}", e),
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diff changeset
640 };
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diff changeset
641 let expected = DefaultConfigItem {
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diff changeset
642 section: "censor".into(),
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diff changeset
643 name: "policy".into(),
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diff changeset
644 default: Some(DefaultConfigItemType::Primitive("abort".into())),
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diff changeset
645 priority: None,
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diff changeset
646 alias: vec![],
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647 experimental: true,
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648 documentation: "".into(),
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649 in_core_extension: None,
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650 };
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diff changeset
651 assert_eq!(config.get(b"censor", b"policy"), Some(&expected));
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652
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653 // Test generic priority. The `.*` pattern is wider than `abcd.*`, but
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654 // `abcd.*` has priority, so it should match first.
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655 let expected = DefaultConfigItem {
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656 section: "alias".into(),
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657 name: "abcd.*".into(),
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diff changeset
658 default: Some(DefaultConfigItemType::Primitive(3.into())),
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diff changeset
659 priority: Some(-1),
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diff changeset
660 alias: vec![],
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661 experimental: false,
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662 documentation: "".into(),
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663 in_core_extension: None,
50760
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diff changeset
664 };
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665 assert_eq!(config.get(b"alias", b"abcdsomething"), Some(&expected));
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diff changeset
666
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diff changeset
667 //... but if it doesn't, we should fallback to `.*`
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diff changeset
668 let expected = DefaultConfigItem {
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669 section: "alias".into(),
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diff changeset
670 name: ".*".into(),
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diff changeset
671 default: Some(DefaultConfigItemType::Dynamic),
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diff changeset
672 priority: Some(0),
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diff changeset
673 alias: vec![],
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diff changeset
674 experimental: false,
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diff changeset
675 documentation: "".into(),
50762
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676 in_core_extension: None,
50760
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diff changeset
677 };
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diff changeset
678 assert_eq!(config.get(b"alias", b"something"), Some(&expected));
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diff changeset
679
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diff changeset
680 let expected = DefaultConfigItem {
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diff changeset
681 section: "chgserver".into(),
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diff changeset
682 name: "idletimeout".into(),
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Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
683 default: Some(DefaultConfigItemType::Primitive(3600.into())),
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diff changeset
684 priority: None,
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685 alias: vec![],
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686 experimental: false,
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687 documentation: "".into(),
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688 in_core_extension: None,
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689 };
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690 assert_eq!(config.get(b"chgserver", b"idletimeout"), Some(&expected));
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691
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692 let expected = DefaultConfigItem {
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693 section: "cmdserver".into(),
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694 name: "track-log".into(),
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695 default: Some(DefaultConfigItemType::Lambda(vec![
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696 "chgserver".into(),
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697 "cmdserver".into(),
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698 "repocache".into(),
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699 ])),
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700 priority: None,
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701 alias: vec![],
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702 experimental: false,
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703 documentation: "".into(),
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704 in_core_extension: None,
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705 };
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706 assert_eq!(config.get(b"cmdserver", b"track-log"), Some(&expected));
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707
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708 let expected = DefaultConfigItem {
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709 section: "command-templates".into(),
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710 name: "graphnode".into(),
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711 default: None,
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712 priority: None,
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713 alias: vec![("ui".into(), "graphnodetemplate".into())],
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714 experimental: false,
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715 documentation:
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716 "This is a docstring.\nThis is another line but this is not."
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717 .into(),
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718 in_core_extension: None,
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719 };
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720 assert_eq!(
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721 config.get(b"command-templates", b"graphnode"),
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722 Some(&expected)
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723 );
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724 }
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725 }