diff options
| author | Jan Malakhovski <oxij@oxij.org> | 2018-11-18 08:26:13 +0000 |
|---|---|---|
| committer | Jan Malakhovski <oxij@oxij.org> | 2018-11-22 08:59:48 +0000 |
| commit | 1b3629ef3491cac741f8b00ce116a44c1cc914f9 (patch) | |
| tree | 9e30a383b036270d2143ccdfe166b8044c868ed4 /lib/meta.nix | |
| parent | 3ae0407d3c9dbb7cdf049b69ebb32e62c39357e7 (diff) | |
lib: implement `setPrio`
For when `hiPrio` and `lowPrio` are not enough.
Diffstat (limited to 'lib/meta.nix')
| -rw-r--r-- | lib/meta.nix | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/meta.nix b/lib/meta.nix index 199030c103af..2e83c4247ddf 100644 --- a/lib/meta.nix +++ b/lib/meta.nix @@ -41,16 +41,18 @@ rec { let x = builtins.parseDrvName name; in "${x.name}-${suffix}-${x.version}"); - /* Apply a function to each derivation and only to derivations in an attrset + /* Apply a function to each derivation and only to derivations in an attrset. */ mapDerivationAttrset = f: set: lib.mapAttrs (name: pkg: if lib.isDerivation pkg then (f pkg) else pkg) set; + /* Set the nix-env priority of the package. + */ + setPrio = priority: addMetaAttrs { inherit priority; }; /* Decrease the nix-env priority of the package, i.e., other versions/variants of the package will be preferred. */ - lowPrio = drv: addMetaAttrs { priority = 10; } drv; - + lowPrio = setPrio 10; /* Apply lowPrio to an attrset with derivations */ @@ -60,8 +62,7 @@ rec { /* Increase the nix-env priority of the package, i.e., this version/variant of the package will be preferred. */ - hiPrio = drv: addMetaAttrs { priority = -10; } drv; - + hiPrio = setPrio (-10); /* Apply hiPrio to an attrset with derivations */ |