Merge branch 'jc/fetch'
* jc/fetch: .gitignore: add git-fetch--tool builtin-fetch--tool: fix reflog notes. git-fetch: retire update-local-ref which is not used anymore. builtin-fetch--tool: make sure not to overstep ls-remote-result buffer. fetch--tool: fix uninitialized buffer when reading from stdin builtin-fetch--tool: adjust to updated sha1_object_info(). git-fetch--tool takes flags before the subcommand. Use stdin reflist passing in git-fetch.sh Use stdin reflist passing in parse-remote Allow fetch--tool to read from stdin git-fetch: rewrite expand_ref_wildcard in C git-fetch: rewrite another shell loop in C git-fetch: move more code into C. git-fetch--tool: start rewriting parts of git-fetch in C. git-fetch: split fetch_main into fetch_dumb and fetch_native
This commit is contained in:
Junio C Hamano
251
git-fetch.sh
251
git-fetch.sh
@ -109,133 +109,11 @@ ls_remote_result=$(git ls-remote $exec "$remote") ||
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die "Cannot get the repository state from $remote"
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append_fetch_head () {
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head_="$1"
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remote_="$2"
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remote_name_="$3"
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remote_nick_="$4"
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local_name_="$5"
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case "$6" in
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t) not_for_merge_='not-for-merge' ;;
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'') not_for_merge_= ;;
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esac
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# remote-nick is the URL given on the command line (or a shorthand)
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# remote-name is the $GIT_DIR relative refs/ path we computed
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# for this refspec.
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# the $note_ variable will be fed to git-fmt-merge-msg for further
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# processing.
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case "$remote_name_" in
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HEAD)
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note_= ;;
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refs/heads/*)
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note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')"
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note_="branch '$note_' of " ;;
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refs/tags/*)
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note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')"
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note_="tag '$note_' of " ;;
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refs/remotes/*)
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note_="$(expr "$remote_name_" : 'refs/remotes/\(.*\)')"
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note_="remote branch '$note_' of " ;;
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*)
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note_="$remote_name of " ;;
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esac
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remote_1_=$(expr "z$remote_" : 'z\(.*\)\.git/*$') &&
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remote_="$remote_1_"
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note_="$note_$remote_"
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# 2.6.11-tree tag would not be happy to be fed to resolve.
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if git-cat-file commit "$head_" >/dev/null 2>&1
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then
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headc_=$(git-rev-parse --verify "$head_^0") || exit
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echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
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else
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echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
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fi
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update_local_ref "$local_name_" "$head_" "$note_"
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}
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update_local_ref () {
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# If we are storing the head locally make sure that it is
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# a fast forward (aka "reverse push").
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label_=$(git-cat-file -t $2)
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newshort_=$(git-rev-parse --short $2)
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if test -z "$1" ; then
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[ "$verbose" ] && echo >&2 "* fetched $3"
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[ "$verbose" ] && echo >&2 " $label_: $newshort_"
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return 0
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fi
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oldshort_=$(git show-ref --hash --abbrev "$1" 2>/dev/null)
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case "$1" in
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refs/tags/*)
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# Tags need not be pointing at commits so there
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# is no way to guarantee "fast-forward" anyway.
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if test -n "$oldshort_"
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then
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if now_=$(git show-ref --hash "$1") && test "$now_" = "$2"
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then
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[ "$verbose" ] && echo >&2 "* $1: same as $3"
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[ "$verbose" ] && echo >&2 " $label_: $newshort_" ||:
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else
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echo >&2 "* $1: updating with $3"
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echo >&2 " $label_: $newshort_"
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git-update-ref -m "$GIT_REFLOG_ACTION: updating tag" "$1" "$2"
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fi
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else
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echo >&2 "* $1: storing $3"
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echo >&2 " $label_: $newshort_"
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git-update-ref -m "$GIT_REFLOG_ACTION: storing tag" "$1" "$2"
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fi
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;;
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refs/heads/* | refs/remotes/*)
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# $1 is the ref being updated.
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# $2 is the new value for the ref.
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local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
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if test "$local"
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then
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# Require fast-forward.
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mb=$(git-merge-base "$local" "$2") &&
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case "$2,$mb" in
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$local,*)
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if test -n "$verbose"
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then
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echo >&2 "* $1: same as $3"
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echo >&2 " $label_: $newshort_"
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fi
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;;
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*,$local)
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echo >&2 "* $1: fast forward to $3"
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echo >&2 " old..new: $oldshort_..$newshort_"
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git-update-ref -m "$GIT_REFLOG_ACTION: fast-forward" "$1" "$2" "$local"
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;;
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*)
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false
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;;
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esac || {
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case ",$force,$single_force," in
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*,t,*)
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echo >&2 "* $1: forcing update to non-fast forward $3"
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echo >&2 " old...new: $oldshort_...$newshort_"
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git-update-ref -m "$GIT_REFLOG_ACTION: forced-update" "$1" "$2" "$local"
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;;
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*)
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echo >&2 "* $1: not updating to non-fast forward $3"
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echo >&2 " old...new: $oldshort_...$newshort_"
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exit 1
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;;
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esac
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}
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else
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echo >&2 "* $1: storing $3"
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echo >&2 " $label_: $newshort_"
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git-update-ref -m "$GIT_REFLOG_ACTION: storing head" "$1" "$2"
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fi
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;;
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esac
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flags=
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test -n "$verbose" && flags="$flags -v"
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test -n "$force" && flags="$flags -f"
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GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION" \
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git-fetch--tool $flags append-fetch-head "$@"
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}
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# updating the current HEAD with git-fetch in a bare
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@ -279,7 +157,38 @@ then
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fi
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fi
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fetch_main () {
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fetch_native () {
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eval=$(echo "$1" | git-fetch--tool parse-reflist "-")
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eval "$eval"
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( : subshell because we muck with IFS
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IFS=" $LF"
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(
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if test -f "$remote" ; then
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test -n "$shallow_depth" &&
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die "shallow clone with bundle is not supported"
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git-bundle unbundle "$remote" $rref ||
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echo failed "$remote"
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else
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git-fetch-pack --thin $exec $keep $shallow_depth $no_progress \
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"$remote" $rref ||
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echo failed "$remote"
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fi
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) |
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(
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flags=
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test -n "$verbose" && flags="$flags -v"
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test -n "$force" && flags="$flags -f"
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GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION" \
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git-fetch--tool $flags native-store \
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"$remote" "$remote_nick" "$refs"
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)
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) || exit
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}
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fetch_dumb () {
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reflist="$1"
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refs=
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rref=
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@ -371,9 +280,6 @@ fetch_main () {
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rsync_slurped_objects=t
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}
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;;
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*)
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# We will do git native transport with just one call later.
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continue ;;
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esac
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append_fetch_head "$head" "$remote" \
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@ -381,80 +287,17 @@ fetch_main () {
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done
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case "$remote" in
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http://* | https://* | ftp://* | rsync://* )
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;; # we are already done.
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*)
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( : subshell because we muck with IFS
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IFS=" $LF"
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(
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if test -f "$remote" ; then
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test -n "$shallow_depth" &&
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die "shallow clone with bundle is not supported"
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git-bundle unbundle "$remote" $rref ||
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echo failed "$remote"
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else
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git-fetch-pack --thin $exec $keep $shallow_depth $no_progress \
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"$remote" $rref ||
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echo failed "$remote"
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fi
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) |
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(
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trap '
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if test -n "$keepfile" && test -f "$keepfile"
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then
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rm -f "$keepfile"
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fi
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' 0
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keepfile=
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while read sha1 remote_name
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do
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case "$sha1" in
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failed)
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echo >&2 "Fetch failure: $remote"
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exit 1 ;;
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# special line coming from index-pack with the pack name
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pack)
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continue ;;
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keep)
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keepfile="$GIT_OBJECT_DIRECTORY/pack/pack-$remote_name.keep"
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continue ;;
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esac
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found=
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single_force=
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for ref in $refs
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do
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case "$ref" in
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+$remote_name:*)
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single_force=t
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not_for_merge=
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found="$ref"
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break ;;
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.+$remote_name:*)
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single_force=t
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not_for_merge=t
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found="$ref"
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break ;;
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.$remote_name:*)
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not_for_merge=t
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found="$ref"
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break ;;
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$remote_name:*)
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not_for_merge=
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found="$ref"
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break ;;
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esac
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done
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local_name=$(expr "z$found" : 'z[^:]*:\(.*\)')
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append_fetch_head "$sha1" "$remote" \
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"$remote_name" "$remote_nick" "$local_name" \
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"$not_for_merge" || exit
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done
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)
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) || exit ;;
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esac
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}
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fetch_main () {
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case "$remote" in
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http://* | https://* | ftp://* | rsync://* )
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fetch_dumb "$@"
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;;
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*)
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fetch_native "$@"
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;;
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esac
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}
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fetch_main "$reflist" || exit
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Reference in New Issue
Block a user