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-rw-r--r--doc/manual/generate-manpage.nix28
-rw-r--r--doc/manual/utils.nix24
-rw-r--r--src/libstore/globals.hh20
-rw-r--r--src/libutil/config.cc4
-rw-r--r--src/libutil/tests/config.cc48
5 files changed, 86 insertions, 38 deletions
diff --git a/doc/manual/generate-manpage.nix b/doc/manual/generate-manpage.nix
index 0b3a23801..d04eecf55 100644
--- a/doc/manual/generate-manpage.nix
+++ b/doc/manual/generate-manpage.nix
@@ -31,19 +31,18 @@ let
showSynopsis = command: args:
let
- showArgument = arg: "*${arg.label}*" + (if arg ? arity then "" else "...");
+ showArgument = arg: "*${arg.label}*" + optionalString (! arg ? arity) "...";
arguments = concatStringsSep " " (map showArgument args);
in ''
`${command}` [*option*...] ${arguments}
'';
- maybeSubcommands = if details ? commands && details.commands != {}
- then ''
+ maybeSubcommands = optionalString (details ? commands && details.commands != {})
+ ''
where *subcommand* is one of the following:
${subcommands}
- ''
- else "";
+ '';
subcommands = if length categories > 1
then listCategories
@@ -65,12 +64,11 @@ let
* [`${command} ${name}`](./${appendName filename name}.md) - ${subcmd.description}
'';
- maybeDocumentation =
- if details ? doc
- then replaceStrings ["@stores@"] [storeDocs] details.doc
- else "";
+ maybeDocumentation = optionalString
+ (details ? doc)
+ (replaceStrings ["@stores@"] [storeDocs] details.doc);
- maybeOptions = if details.flags == {} then "" else ''
+ maybeOptions = optionalString (details.flags != {}) ''
# Options
${showOptions details.flags toplevel.flags}
@@ -80,15 +78,19 @@ let
let
allOptions = options // commonOptions;
showCategory = cat: ''
- ${if cat != "" then "**${cat}:**" else ""}
+ ${optionalString (cat != "") "**${cat}:**"}
${listOptions (filterAttrs (n: v: v.category == cat) allOptions)}
'';
listOptions = opts: concatStringsSep "\n" (attrValues (mapAttrs showOption opts));
showOption = name: option:
let
- shortName = if option ? shortName then "/ `-${option.shortName}`" else "";
- labels = if option ? labels then (concatStringsSep " " (map (s: "*${s}*") option.labels)) else "";
+ shortName = optionalString
+ (option ? shortName)
+ ("/ `-${option.shortName}`");
+ labels = optionalString
+ (option ? labels)
+ (concatStringsSep " " (map (s: "*${s}*") option.labels));
in trim ''
- `--${name}` ${shortName} ${labels}
diff --git a/doc/manual/utils.nix b/doc/manual/utils.nix
index 82544935a..9043dd8cd 100644
--- a/doc/manual/utils.nix
+++ b/doc/manual/utils.nix
@@ -42,7 +42,9 @@ rec {
filterAttrs = pred: set:
listToAttrs (concatMap (name: let v = set.${name}; in if pred name v then [(nameValuePair name v)] else []) (attrNames set));
- showSetting = { useAnchors }: name: { description, documentDefault, defaultValue, aliases, value }:
+ optionalString = cond: string: if cond then string else "";
+
+ showSetting = { useAnchors }: name: { description, documentDefault, defaultValue, aliases, value, experimentalFeature }:
let
result = squash ''
- ${if useAnchors
@@ -52,10 +54,28 @@ rec {
${indent " " body}
'';
+ experimentalFeatureNote = optionalString (experimentalFeature != null) ''
+ > **Warning**
+ > This setting is part of an
+ > [experimental feature](@docroot@/contributing/experimental-features.md).
+
+ To change this setting, you need to make sure the corresponding experimental feature,
+ [`${experimentalFeature}`](@docroot@/contributing/experimental-features.md#xp-feature-${experimentalFeature}),
+ is enabled.
+ For example, include the following in [`nix.conf`](#):
+
+ ```
+ extra-experimental-features = ${experimentalFeature}
+ ${name} = ...
+ ```
+ '';
+
# separate body to cleanly handle indentation
body = ''
${description}
+ ${experimentalFeatureNote}
+
**Default:** ${showDefault documentDefault defaultValue}
${showAliases aliases}
@@ -74,7 +94,7 @@ rec {
else "*machine-specific*";
showAliases = aliases:
- if aliases == [] then "" else
+ optionalString (aliases != [])
"**Deprecated alias:** ${(concatStringsSep ", " (map (s: "`${s}`") aliases))}";
in result;
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index 63c7389da..f598ed4a8 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -328,16 +328,6 @@ public:
users in `build-users-group`.
UIDs are allocated starting at 872415232 (0x34000000) on Linux and 56930 on macOS.
-
- > **Warning**
- > This is an experimental feature.
-
- To enable it, add the following to [`nix.conf`](#):
-
- ```
- extra-experimental-features = auto-allocate-uids
- auto-allocate-uids = true
- ```
)"};
Setting<uint32_t> startId{this,
@@ -367,16 +357,6 @@ public:
Cgroups are required and enabled automatically for derivations
that require the `uid-range` system feature.
-
- > **Warning**
- > This is an experimental feature.
-
- To enable it, add the following to [`nix.conf`](#):
-
- ```
- extra-experimental-features = cgroups
- use-cgroups = true
- ```
)"};
#endif
diff --git a/src/libutil/config.cc b/src/libutil/config.cc
index 5ff8d91ba..a42f3a849 100644
--- a/src/libutil/config.cc
+++ b/src/libutil/config.cc
@@ -191,6 +191,10 @@ std::map<std::string, nlohmann::json> AbstractSetting::toJSONObject()
std::map<std::string, nlohmann::json> obj;
obj.emplace("description", description);
obj.emplace("aliases", aliases);
+ if (experimentalFeature)
+ obj.emplace("experimentalFeature", *experimentalFeature);
+ else
+ obj.emplace("experimentalFeature", nullptr);
return obj;
}
diff --git a/src/libutil/tests/config.cc b/src/libutil/tests/config.cc
index 8be6730dd..f250e934e 100644
--- a/src/libutil/tests/config.cc
+++ b/src/libutil/tests/config.cc
@@ -156,12 +156,54 @@ namespace nix {
}
TEST(Config, toJSONOnNonEmptyConfig) {
+ using nlohmann::literals::operator "" _json;
Config config;
- std::map<std::string, Config::SettingInfo> settings;
- Setting<std::string> setting{&config, "", "name-of-the-setting", "description"};
+ Setting<std::string> setting{
+ &config,
+ "",
+ "name-of-the-setting",
+ "description",
+ };
+ setting.assign("value");
+
+ ASSERT_EQ(config.toJSON(),
+ R"#({
+ "name-of-the-setting": {
+ "aliases": [],
+ "defaultValue": "",
+ "description": "description\n",
+ "documentDefault": true,
+ "value": "value",
+ "experimentalFeature": null
+ }
+ })#"_json);
+ }
+
+ TEST(Config, toJSONOnNonEmptyConfigWithExperimentalSetting) {
+ using nlohmann::literals::operator "" _json;
+ Config config;
+ Setting<std::string> setting{
+ &config,
+ "",
+ "name-of-the-setting",
+ "description",
+ {},
+ true,
+ Xp::Flakes,
+ };
setting.assign("value");
- ASSERT_EQ(config.toJSON().dump(), R"#({"name-of-the-setting":{"aliases":[],"defaultValue":"","description":"description\n","documentDefault":true,"value":"value"}})#");
+ ASSERT_EQ(config.toJSON(),
+ R"#({
+ "name-of-the-setting": {
+ "aliases": [],
+ "defaultValue": "",
+ "description": "description\n",
+ "documentDefault": true,
+ "value": "value",
+ "experimentalFeature": "flakes"
+ }
+ })#"_json);
}
TEST(Config, setSettingAlias) {