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Bail if plugin-files is set after plugins have been loaded.

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We know the flag will be ignored but the user wants it to take effect.
This commit is contained in:
Shea Levy 2021-01-28 07:37:04 -05:00
parent a878c448d8
commit ec3497c1d6
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GPG key ID: 5C0BD6957D86FE27
2 changed files with 29 additions and 1 deletions
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11
src/libstore/globals.cc
View file

@ -243,6 +243,14 @@ void MaxBuildJobsSetting::set(const std::string & str, bool append)
}
void PluginFilesSetting::set(const std::string & str, bool append)
{
if (pluginsLoaded)
throw UsageError("plugin-files set after plugins were loaded, you may need to move the flag before the subcommand");
BaseSetting<Paths>::set(str, append);
}
void initPlugins()
{
for (const auto & pluginFile : settings.pluginFiles.get()) {
@ -270,6 +278,9 @@ void initPlugins()
unknown settings. */
globalConfig.reapplyUnknownSettings();
globalConfig.warnUnknownSettings();
/* Tell the user if they try to set plugin-files after we've already loaded */
settings.pluginFiles.pluginsLoaded = true;
}
}

19
src/libstore/globals.hh
View file

@ -28,6 +28,23 @@ struct MaxBuildJobsSetting : public BaseSetting<unsigned int>
void set(const std::string & str, bool append = false) override;
};
struct PluginFilesSetting : public BaseSetting<Paths>
{
bool pluginsLoaded = false;
PluginFilesSetting(Config * options,
const Paths & def,
const std::string & name,
const std::string & description,
const std::set<std::string> & aliases = {})
: BaseSetting<Paths>(def, name, description, aliases)
{
options->addSetting(this);
}
void set(const std::string & str, bool append = false) override;
};
class Settings : public Config {
unsigned int getDefaultCores();
@ -819,7 +836,7 @@ public:
Setting<uint64_t> minFreeCheckInterval{this, 5, "min-free-check-interval",
"Number of seconds between checking free disk space."};
Setting<Paths> pluginFiles{
PluginFilesSetting pluginFiles{
this, {}, "plugin-files",
R"(
A list of plugin files to be loaded by Nix. Each of these files will