Git command for managing git vendored dependencies
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#!/bin/sh
#
# git-vendor.sh: manage vendored repos via git-subtree
#
# Copyright (c) 2016 Brett Langdon <me@brett.is>
#
_usage()
{
cat <<EOF
Usage:
git vendor --help
git vendor add [--prefix <dir>] <name> <repository> [<ref>]
git vendor list [<name>]
git vendor update <name> [<ref>]
EOF
}
PATH=$PATH:$(git --exec-path)
. git-sh-setup
require_work_tree
case "$1" in
""|"--help") _usage && exit ;;
esac
command="$1"
shift
case "$command" in
"add"|"list"|"update") ;;
*) >&2 echo "error: unknown command \"$command\"" && _usage && exit 1 ;;
esac
prefix="vendor"
if [ "$1" == "--prefix" ]; then
prefix="$2"
shift; shift
fi
vendor_names_from_log()
{
name=
git log --grep="^git-vendor-name: .*\$" \
--pretty=format:'START %H%n%s%n%n%b%nEND%n' HEAD |
while read a b junk; do
case "$a" in
START) ;;
git-vendor-name:) name="$b" ;;
END)
echo "$name"
name=
;;
esac
done
}
cmd_add()
{
name="$1"
repository="$2"
ref="master"
if [ "$3" != "" ]; then
ref="$3"
fi
if [ $# -lt 2 ];
then
die "Incorrect options provided: git vendor add <name> <repository> [<ref>]"
fi
dir="$prefix/$(echo "$repository" | sed -E 's/^[a-zA-Z]+((:\/\/)|@)//' | sed 's/:/\//' | sed -E 's/\.git$//')"
message="\
Add \"$name\" from \"$repository@$ref\"
git-vendor-name: $name
git-vendor-dir: $dir
git-vendor-repository: $repository
git-vendor-ref: $ref
"
set -x
git subtree add --prefix "$dir" --message "$message" "$repository" "$ref" --squash
}
cmd_list()
{
showOnly="$1"
vendorNames=($(vendor_names_from_log | sort -u))
for name in "${vendorNames[@]}";
do
git log -1 --grep="^git-vendor-name: $name\$" \
--pretty=format:'START %H%n%s%n%n%b%nEND%n' HEAD |
while read a b junk; do
case "$a" in
START) commit="$b" ;;
git-vendor-name:) name="$b" ;;
git-vendor-dir:) dir="$b" ;;
git-vendor-ref:) ref="$b" ;;
git-vendor-repository:) repository="$b" ;;
END)
if [[ ! -z "$repository" ]];
then
if [[ -z "$showOnly" ]] || [ "$showOnly" == "$name" ]; then
echo "$name@$ref:"
echo "\tname:\t$name"
echo "\tdir:\t$dir"
echo "\trepo:\t$repository"
echo "\tref:\t$ref"
echo "\tcommit:\t$commit"
echo ""
fi
fi
name=
dir=
ref=
commit=
repository=
;;
esac
done
done;
}
cmd_update()
{
name="$1"
ref="master"
if [ "$2" != "" ]; then
ref="$2"
fi
if [ $# -lt 1 ]; then
die "Incorrect options provided: git vendor update <name> [<ref>]"
fi
git log -1 --grep="^git-vendor-name: $name\$" \
--pretty=format:'START %H%n%s%n%n%b%nEND%n' HEAD |
while read a b junk; do
case "$a" in
START) ;;
git-vendor-dir:) dir="$b" ;;
git-vendor-repository:) repository="$b" ;;
END)
if [[ ! -z "$repository" ]];
then
message="\
Update \"$name\" from \"$repository@$ref\"
git-vendor-name: $name
git-vendor-dir: $dir
git-vendor-repository: $repository
git-vendor-ref: $ref
"
git subtree pull --prefix "$dir" --message "$message" "$repository" "$ref" --squash
break
fi
;;
esac
done
}
"cmd_$command" "$@"