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Diffstat (limited to 'fleet/hosts/trieste/build-from-git.nix')
-rw-r--r-- | fleet/hosts/trieste/build-from-git.nix | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fleet/hosts/trieste/build-from-git.nix b/fleet/hosts/trieste/build-from-git.nix new file mode 100644 index 0000000..f04ef48 --- /dev/null +++ b/fleet/hosts/trieste/build-from-git.nix @@ -0,0 +1,16 @@ +# SPDX-FileCopyrightText: V <v@unfathomable.blue> +# SPDX-License-Identifier: OSL-3.0 + +{ repo, pkgs ? import <nixpkgs> {} }: + +pkgs.callPackage (builtins.fetchGit { + url = repo; + # While Nix will happily just fetch from HEAD if you only pass in a + # path, it will also cache the result for an hour, making it totally + # unsuitable for what we're doing. lib.commitIdFromGitRepo, on the + # other hand, is implemented purely in Nix and does not cache lookups + # from one invocation to the next. This lets us "impurely" fetch from + # HEAD while enjoying the niceties of using builtins.fetchGit with a + # specific commit hash. + rev = pkgs.lib.commitIdFromGitRepo repo; +}).outPath {} |