diff options
Diffstat (limited to 'nixpkgs/nixos/modules/installer/tools/get-version-suffix')
| -rw-r--r-- | nixpkgs/nixos/modules/installer/tools/get-version-suffix | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/installer/tools/get-version-suffix b/nixpkgs/nixos/modules/installer/tools/get-version-suffix new file mode 100644 index 00000000000..b8972cd57d2 --- /dev/null +++ b/nixpkgs/nixos/modules/installer/tools/get-version-suffix @@ -0,0 +1,22 @@ +getVersion() { + local dir="$1" + rev= + if [ -e "$dir/.git" ]; then + if [ -z "$(type -P git)" ]; then + echo "warning: Git not found; cannot figure out revision of $dir" >&2 + return + fi + cd "$dir" + rev=$(git rev-parse --short HEAD) + if git describe --always --dirty | grep -q dirty; then + rev+=M + fi + fi +} + +if nixpkgs=$(nix-instantiate --find-file nixpkgs "$@"); then + getVersion $nixpkgs + if [ -n "$rev" ]; then + echo ".git.$rev" + fi +fi |