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gen-version.sh: check if git is available before trying to call it
Some people may clone the cgit repository and compile within a sandbox or on another machine where git is not necessarily installed. When it happens, cgit is getting compiled with an empty version number. This commit fixes this.
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@ -4,7 +4,7 @@
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V=$1
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# Use `git describe` to get current version if we're inside a git repo
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if test -d .git
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if test "$(git rev-parse --git-dir 2>/dev/null)" = '.git'
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then
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V=$(git describe --abbrev=4 HEAD 2>/dev/null)
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fi
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