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https://github.com/git/git
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fbc9012307
When your fetch configuration has only the wildcards, we would pick the lexicographically first ref from the remote side for merging, which was complete nonsense. Make sure nothing except the one that is specified with branch.*.merge is merged in this case. Signed-off-by: Junio C Hamano <junkio@cox.net>
282 lines
6.2 KiB
Bash
Executable file
282 lines
6.2 KiB
Bash
Executable file
#!/bin/sh
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# git-ls-remote could be called from outside a git managed repository;
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# this would fail in that case and would issue an error message.
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GIT_DIR=$(git-rev-parse --git-dir 2>/dev/null) || :;
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get_data_source () {
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case "$1" in
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*/*)
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echo ''
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;;
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*)
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if test "$(git-repo-config --get "remote.$1.url")"
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then
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echo config
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elif test -f "$GIT_DIR/remotes/$1"
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then
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echo remotes
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elif test -f "$GIT_DIR/branches/$1"
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then
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echo branches
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else
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echo ''
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fi ;;
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esac
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}
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get_remote_url () {
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data_source=$(get_data_source "$1")
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case "$data_source" in
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'')
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echo "$1"
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;;
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config)
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git-repo-config --get "remote.$1.url"
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;;
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remotes)
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sed -ne '/^URL: */{
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s///p
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q
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}' "$GIT_DIR/remotes/$1"
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;;
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branches)
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sed -e 's/#.*//' "$GIT_DIR/branches/$1"
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;;
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*)
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die "internal error: get-remote-url $1" ;;
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esac
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}
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get_default_remote () {
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curr_branch=$(git-symbolic-ref HEAD | sed -e 's|^refs/heads/||')
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origin=$(git-repo-config --get "branch.$curr_branch.remote")
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echo ${origin:-origin}
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}
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get_remote_default_refs_for_push () {
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data_source=$(get_data_source "$1")
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case "$data_source" in
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'' | branches)
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;; # no default push mapping, just send matching refs.
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config)
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git-repo-config --get-all "remote.$1.push" ;;
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remotes)
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sed -ne '/^Push: */{
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s///p
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}' "$GIT_DIR/remotes/$1" ;;
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*)
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die "internal error: get-remote-default-ref-for-push $1" ;;
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esac
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}
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# Called from canon_refs_list_for_fetch -d "$remote", which
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# is called from get_remote_default_refs_for_fetch to grok
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# refspecs that are retrieved from the configuration, but not
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# from get_remote_refs_for_fetch when it deals with refspecs
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# supplied on the command line. $ls_remote_result has the list
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# of refs available at remote.
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#
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# The first token returned is either "explicit" or "glob"; this
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# is to help prevent randomly "globbed" ref from being chosen as
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# a merge candidate
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expand_refs_wildcard () {
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first_one=yes
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for ref
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do
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lref=${ref#'+'}
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# a non glob pattern is given back as-is.
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expr "z$lref" : 'zrefs/.*/\*:refs/.*/\*$' >/dev/null || {
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if test -n "$first_one"
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then
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echo "explicit"
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first_one=
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fi
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echo "$ref"
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continue
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}
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# glob
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if test -n "$first_one"
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then
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echo "glob"
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first_one=
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fi
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from=`expr "z$lref" : 'z\(refs/.*/\)\*:refs/.*/\*$'`
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to=`expr "z$lref" : 'zrefs/.*/\*:\(refs/.*/\)\*$'`
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local_force=
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test "z$lref" = "z$ref" || local_force='+'
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echo "$ls_remote_result" |
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sed -e '/\^{}$/d' |
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(
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IFS=' '
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while read sha1 name
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do
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# ignore the ones that do not start with $from
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mapped=${name#"$from"}
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test "z$name" = "z$mapped" && continue
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echo "${local_force}${name}:${to}${mapped}"
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done
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)
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done
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}
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# Subroutine to canonicalize remote:local notation.
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canon_refs_list_for_fetch () {
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# If called from get_remote_default_refs_for_fetch
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# leave the branches in branch.${curr_branch}.merge alone,
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# or the first one otherwise; add prefix . to the rest
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# to prevent the secondary branches to be merged by default.
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merge_branches=
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curr_branch=
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if test "$1" = "-d"
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then
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shift ; remote="$1" ; shift
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set $(expand_refs_wildcard "$@")
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is_explicit="$1"
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shift
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if test "$remote" = "$(get_default_remote)"
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then
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curr_branch=$(git-symbolic-ref HEAD | \
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sed -e 's|^refs/heads/||')
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merge_branches=$(git-repo-config \
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--get-all "branch.${curr_branch}.merge")
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fi
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if test -z "$merge_branches" && test $is_explicit != explicit
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then
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merge_branches=..this.will.never.match.any.ref..
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fi
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fi
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for ref
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do
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force=
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case "$ref" in
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+*)
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ref=$(expr "z$ref" : 'z+\(.*\)')
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force=+
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;;
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esac
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expr "z$ref" : 'z.*:' >/dev/null || ref="${ref}:"
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remote=$(expr "z$ref" : 'z\([^:]*\):')
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local=$(expr "z$ref" : 'z[^:]*:\(.*\)')
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dot_prefix=.
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if test -z "$merge_branches"
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then
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merge_branches=$remote
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dot_prefix=
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else
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for merge_branch in $merge_branches
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do
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if test "$remote" = "$merge_branch" ||
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test "$local" = "$merge_branch"
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then
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dot_prefix=
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break
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fi
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done
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fi
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case "$remote" in
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'') remote=HEAD ;;
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refs/heads/* | refs/tags/* | refs/remotes/*) ;;
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heads/* | tags/* | remotes/* ) remote="refs/$remote" ;;
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*) remote="refs/heads/$remote" ;;
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esac
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case "$local" in
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'') local= ;;
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refs/heads/* | refs/tags/* | refs/remotes/*) ;;
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heads/* | tags/* | remotes/* ) local="refs/$local" ;;
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*) local="refs/heads/$local" ;;
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esac
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if local_ref_name=$(expr "z$local" : 'zrefs/\(.*\)')
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then
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git-check-ref-format "$local_ref_name" ||
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die "* refusing to create funny ref '$local_ref_name' locally"
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fi
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echo "${dot_prefix}${force}${remote}:${local}"
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done
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}
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# Returns list of src: (no store), or src:dst (store)
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get_remote_default_refs_for_fetch () {
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data_source=$(get_data_source "$1")
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case "$data_source" in
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'')
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echo "HEAD:" ;;
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config)
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canon_refs_list_for_fetch -d "$1" \
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$(git-repo-config --get-all "remote.$1.fetch") ;;
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branches)
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remote_branch=$(sed -ne '/#/s/.*#//p' "$GIT_DIR/branches/$1")
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case "$remote_branch" in '') remote_branch=master ;; esac
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echo "refs/heads/${remote_branch}:refs/heads/$1"
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;;
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remotes)
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canon_refs_list_for_fetch -d "$1" $(sed -ne '/^Pull: */{
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s///p
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}' "$GIT_DIR/remotes/$1")
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;;
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*)
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die "internal error: get-remote-default-ref-for-push $1" ;;
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esac
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}
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get_remote_refs_for_push () {
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case "$#" in
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0) die "internal error: get-remote-refs-for-push." ;;
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1) get_remote_default_refs_for_push "$@" ;;
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*) shift; echo "$@" ;;
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esac
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}
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get_remote_refs_for_fetch () {
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case "$#" in
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0)
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die "internal error: get-remote-refs-for-fetch." ;;
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1)
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get_remote_default_refs_for_fetch "$@" ;;
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*)
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shift
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tag_just_seen=
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for ref
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do
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if test "$tag_just_seen"
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then
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echo "refs/tags/${ref}:refs/tags/${ref}"
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tag_just_seen=
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continue
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else
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case "$ref" in
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tag)
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tag_just_seen=yes
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continue
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;;
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esac
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fi
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canon_refs_list_for_fetch "$ref"
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done
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;;
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esac
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}
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resolve_alternates () {
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# original URL (xxx.git)
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top_=`expr "z$1" : 'z\([^:]*:/*[^/]*\)/'`
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while read path
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do
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case "$path" in
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\#* | '')
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continue ;;
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/*)
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echo "$top_$path/" ;;
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../*)
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# relative -- ugly but seems to work.
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echo "$1/objects/$path/" ;;
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*)
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# exit code may not be caught by the reader.
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echo "bad alternate: $path"
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exit 1 ;;
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esac
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done
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}
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