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git/git-parse-remote-script
Junio C Hamano 61f01a5b77 parse-remote: trivial fix to allow refs/{heads,tags}/ spelled easier.
Earlier we always prefixed refs/heads to the token given to "git fetch"
(and "git pull") as refspec.  This was a mistake.  Allow them to be
spelled like "master:refs/tags/paulus" to mean "I want to fetch the
master there and store it as my local "paulus" tag.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-30 01:08:24 -07:00

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#!/bin/sh
. git-sh-setup-script || die "Not a git archive"
get_data_source () {
case "$1" in
*/*)
# Not so fast. This could be the partial URL shorthand...
token=$(expr "$1" : '\([^/]*\)/')
remainder=$(expr "$1" : '[^/]*/\(.*\)')
if test -f "$GIT_DIR/branches/$token"
then
echo branches-partial
else
echo ''
fi
;;
*)
if test -f "$GIT_DIR/remotes/$1"
then
echo remotes
elif test -f "$GIT_DIR/branches/$1"
then
echo branches
else
echo ''
fi ;;
esac
}
get_remote_url () {
data_source=$(get_data_source "$1")
case "$data_source" in
'')
echo "$1" ;;
remotes)
sed -ne '/^URL: */{
s///p
q
}' "$GIT_DIR/remotes/$1" ;;
branches)
sed -e 's/#.*//' "$GIT_DIR/branches/$1" ;;
branches-partial)
token=$(expr "$1" : '\([^/]*\)/')
remainder=$(expr "$1" : '[^/]*/\(.*\)')
url=$(sed -e 's/#.*//' "$GIT_DIR/branches/$token")
echo "$url/$remainder"
;;
*)
die "internal error: get-remote-url $1" ;;
esac
}
get_remote_default_refs_for_push () {
data_source=$(get_data_source "$1")
case "$data_source" in
'' | branches | branches-partial)
;; # no default push mapping, just send matching refs.
remotes)
sed -ne '/^Push: */{
s///p
}' "$GIT_DIR/remotes/$1" ;;
*)
die "internal error: get-remote-default-ref-for-push $1" ;;
esac
}
# Subroutine to canonicalize remote:local notation
canon_refs_list_for_fetch () {
for ref
do
force=
case "$ref" in
+*)
ref=$(expr "$ref" : '\+\(.*\)')
force=+
;;
esac
expr "$ref" : '.*:' >/dev/null || ref="${ref}:"
remote=$(expr "$ref" : '\([^:]*\):')
local=$(expr "$ref" : '[^:]*:\(.*\)')
case "$remote" in
'') remote=HEAD ;;
refs/heads/* | refs/tags/*) ;;
heads/* | tags/* ) remote="refs/$remote" ;;
*) remote="refs/heads/$remote" ;;
esac
case "$local" in
'') local= ;;
refs/heads/* | refs/tags/*) ;;
heads/* | tags/* ) local="refs/$local" ;;
*) local="refs/heads/$local" ;;
esac
echo "${force}${remote}:${local}"
done
}
# Returns list of src: (no store), or src:dst (store)
get_remote_default_refs_for_fetch () {
data_source=$(get_data_source "$1")
case "$data_source" in
'' | branches-partial)
echo "HEAD:" ;;
branches)
remote_branch=$(sed -ne '/#/s/.*#//p' "$GIT_DIR/branches/$1")
case "$remote_branch" in '') remote_branch=master ;; esac
echo "refs/heads/${remote_branch}:refs/heads/$1"
;;
remotes)
canon_refs_list_for_fetch $(sed -ne '/^Pull: */{
s///p
}' "$GIT_DIR/remotes/$1")
;;
*)
die "internal error: get-remote-default-ref-for-push $1" ;;
esac
}
get_remote_refs_for_push () {
case "$#" in
0) die "internal error: get-remote-refs-for-push." ;;
1) get_remote_default_refs_for_push "$@" ;;
*) shift; echo "$@" ;;
esac
}
get_remote_refs_for_fetch () {
case "$#" in
0)
die "internal error: get-remote-refs-for-fetch." ;;
1)
get_remote_default_refs_for_fetch "$@" ;;
*)
shift
tag_just_seen=
for ref
do
if test "$tag_just_seen"
then
echo "refs/tags/${ref}:refs/tags/${ref}"
tag_just_seen=
continue
else
case "$ref" in
tag)
tag_just_seen=yes
continue
;;
esac
fi
canon_refs_list_for_fetch "$ref"
done
;;
esac
}