47 lines
1.1 KiB
Bash
Executable File
47 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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set -e
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if (cd -P .) 2>/dev/null; then
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CHDIR='cd -P'
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else
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CHDIR='cd'
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fi
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quiet=
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branch=
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until [ $# = 0 ]; do
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case "$1" in
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--) shift; break;;
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-C|--directory) shift; $CHDIR "$1";;
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-C*) $CHDIR `expr "$1" : '-C\(.*\)'`;;
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--directory=*) $CHDIR `expr "$1" : '[^=]*=\(.*\)'`;;
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-q) quiet=1;;
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-b|--branch) shift; branch="$1";;
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-b*) branch=`expr "$1" : '-b\(.*\)'`;;
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--branch=*) branch=`expr "$1" : '[^=]*=\(.*\)'`;;
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-*) echo "unknown option: $1" 1>&2; exit 1;;
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*) break;;
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esac
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shift
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done
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url="$1"
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dir="$2"
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shift 2
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[ x"$branch" = x ] && unset branch || :
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if [ -d "$dir" ]; then
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if [ x"$(git -C "$dir" describe --tags)" = x"$branch" ]; then
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exit 0 # already up-to-date
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fi
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echo updating `expr "/$dir/" : '.*/\([^/][^/]*\)/'` ...
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[ $quiet ] || set -x
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$CHDIR "$dir"
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${branch+git} ${branch+fetch} ${branch+"$@"}
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exec git ${branch+checkout} "${branch-pull}" "$@"
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else
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echo retrieving `expr "/$dir/" : '.*/\([^/][^/]*\)/'` ...
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[ $quiet ] || set -x
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exec git clone ${branch+--branch} ${branch+"$branch"} "$url" "$dir" "$@"
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fi
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