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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.
Esse commit está contido em:
Fabien C 2014-02-01 16:07:46 +01:00 commit de Jason A. Donenfeld
commit e8cacb5981

Ver arquivo

@ -4,7 +4,7 @@
V=$1
# Use `git describe` to get current version if we're inside a git repo
if test -d .git
if test "$(git rev-parse --git-dir 2>/dev/null)" = '.git'
then
V=$(git describe --abbrev=4 HEAD 2>/dev/null)
fi