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|
#!/bin/sh
while [ $# -gt 0 ]
do
case "$1" in
--) shift; break;;
-?) eval "OPT_${1#-}=y"
shift
;;
--*=*) kv=${1#--}
k=${kv##=*}
v=${kv%*=}
eval "OPT_${k}=\$1" "$v"
shift
;;
-*) exit 1;;
*) break;;
esac
done
remote=${1:-origin}
SHOW=ahead
[ "$OPT_a" ] && SHOW=all
[ "$OPT_r" ] && SHOW=behind
[ "$OPT_u" ] && SHOW=upto
QUIET=
[ "$OPT_q" ] && QUIET=y
[ "$OPT_n" ] && NS_ONLY=y
[ "$OPT_N" ] && NS_ONLY=
show_message()
{
show_${SHOW}_message
}
show_all_message()
{
cat >&2 <<EOF
Showing all remote branches:
EOF
}
show_all_none_message()
{
cat >&2 <<EOF
No remote branches.
EOF
}
show_ahead_message()
{
cat >&2 <<EOF
Showing remote branches that are ahead (they have pushed onto your HEAD):
EOF
}
show_ahead_none_message()
{
cat >&2 <<EOF
No remote branches are ahead of your HEAD. $1 other remote branches were not
listed.
EOF
}
show_behind_message()
{
cat >&2 <<EOF
Showing remote branches that are behind (your HEAD has commits on top of
the remote branch):
EOF
}
show_behind_none_message()
{
cat >&2 <<EOF
No remotes branches are behind your HEAD. $1 other remote branches were not
listed.
EOF
}
show_upto_message()
{
cat >&2 <<EOF
Showing remote branches that are even with your HEAD.
EOF
}
show_upto_none_message()
{
cat >&2 <<EOF
No remote branches are even with your HEAD. $1 other remote branches were not
listed.
EOF
}
have_ref()
{
git rev-list --quiet "$1" 2>/dev/null
}
git_fetch()
{
local hash="$1" ref="$2"
have_ref "$hash" || git fetch "$remote" "$ref"
}
is_same_ref()
{
[ "$1" = "$2 " ] || [ "$(git rev-parse "$1")" = "$(git rev-parse "$2")" ]
}
is_ancestor()
{
if is_same_ref "$1" "$2"
then false
else git merge-base --is-ancestor "$1" "$2"
fi
}
verdict()
{
if is_same_ref HEAD "$1"
then echo even
elif is_ancestor "$1" HEAD
then echo behind
elif is_ancestor HEAD "$1"
then echo ahead
else echo diverged
fi
}
show_this_remote_branch()
{
local hash="$1"
case "$SHOW" in
all) VERDICT=$(verdict "$hash") ;;
behind) is_ancestor "$hash" HEAD ;;
ahead) is_ancestor HEAD "$hash" ;;
upto) is_same_ref HEAD "$hash" ;;
esac
}
handle_hash_ref()
{
local hash="$1" ref="$2"
git_fetch "$hash" "$ref" || exit
if show_this_remote_branch "$hash"
then
if [ ! "$QUIET" -a "$listed" -eq 0 ]
then
show_message
fi
if [ "$SHOW" = all ]
then
>&2 printf 'remote: %s (%s)\n' "$ref" "$VERDICT"
else
>&2 printf 'remote: %s\n' "$ref"
fi
git show "$hash" | sed '/^$/q'
listed=$((listed + 1))
else
skipped=$((skipped + 1))
fi
}
read_hashes()
{
while read hash ref; do
[ "$hash" != From ] || continue
case "$ref" in
refs/namespaces/*) ;;
*) [ ! "$NS_ONLY" ] || continue ;;
esac
handle_hash_ref "$hash" "$ref"
done
}
finalize()
{
if [ "$listed" -eq 0 ]
then
show_${SHOW}_none_message "$skipped"
fi
}
skipped=0
listed=0
git ls-remote $remote | (read_hashes && finalize)
|
