30 lines
748 B
Text
30 lines
748 B
Text
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getVersion() {
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local dir="$1"
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rev=
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if [ -e "$dir/.git" ]; then
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if [ -z "$(type -P git)" ]; then
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echo "warning: Git not found; cannot figure out revision of $dir" >&2
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return
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fi
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cd "$dir"
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rev=$(git rev-parse --short HEAD)
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if git describe --always --dirty | grep -q dirty; then
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rev+=M
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fi
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fi
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}
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if nixos=$(nix-instantiate --find-file nixos "$@"); then
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getVersion $nixos
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if [ -n "$rev" ]; then
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suffix="pre-$rev"
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if nixpkgs=$(nix-instantiate --find-file nixpkgs "$@"); then
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getVersion $nixpkgs
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if [ -n "$rev" ]; then
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suffix+="-$rev"
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fi
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fi
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echo $suffix
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fi
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fi
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