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add information on the build-hook setting

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add a warning that you probably never want to change this.
This commit is contained in:
Valentin Gagarin 2023-02-27 16:27:56 +01:00
parent 92611e6e4c
commit fd0e21475c
1 changed files with 10 additions and 1 deletions
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11
src/libstore/globals.hh
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@ -201,7 +201,16 @@ public:
{"build-timeout"}};
PathSetting buildHook{this, true, "", "build-hook",
"The path of the helper program that executes builds to remote machines."};
R"(
The path to the helper program that executes remote builds.
Nix communicates with the build hook over `stdio` using a custom protocol to request builds that cannot be performed directly by the Nix daemon.
The default value is the internal Nix binary that implements remote building.
> **Important**
>
> Change this setting only if you really know what you’re doing.
)"};
Setting<std::string> builders{
this, "@" + nixConfDir + "/machines", "builders",