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display attr-path only when queried available

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YI 2020-03-01 16:11:22 +08:00
parent 22a754c091
commit b6d794fb8d
2 changed files with 4 additions and 1 deletions
doc/manual/command-ref
src/nix-env

View file

@ -1066,7 +1066,8 @@ user environment elements, etc. -->
the derivation, which can be used to unambiguously select it using
the <link linkend="opt-attr"><option>--attr</option> option</link>
available in commands that install derivations like
<literal>nix-env --install</literal>.</para></listitem>
<literal>nix-env --install</literal>. This option only works
together with <option>--available</option></para></listitem>
</varlistentry>

View file

@ -914,6 +914,8 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
throw UsageError(format("unknown flag '%1%'") % arg);
}
if (printAttrPath && source != sAvailable)
throw UsageError("--attr-path(-P) only works with --available");
/* Obtain derivation information from the specified source. */
DrvInfos availElems, installedElems;