#!/bin/sh
#
-. git-sh-setup || die "Not a git archive"
+
+USAGE='<fetch-options> <repository> <refspec>...'
+. git-sh-setup
. git-parse-remote
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
'
IFS="$LF"
+no_tags=
tags=
append=
force=
+verbose=
update_head_ok=
+exec=
+upload_pack=
while case "$#" in 0) break ;; esac
do
case "$1" in
-a|--a|--ap|--app|--appe|--appen|--append)
append=t
;;
+ --upl|--uplo|--uploa|--upload|--upload-|--upload-p|\
+ --upload-pa|--upload-pac|--upload-pack)
+ shift
+ exec="--exec=$1"
+ upload_pack="-u $1"
+ ;;
-f|--f|--fo|--for|--forc|--force)
force=t
;;
-t|--t|--ta|--tag|--tags)
tags=t
;;
+ -n|--n|--no|--no-|--no-t|--no-ta|--no-tag|--no-tags)
+ no_tags=t
+ ;;
-u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\
--update-he|--update-hea|--update-head|--update-head-|\
--update-head-o|--update-head-ok)
update_head_ok=t
;;
+ -v|--verbose)
+ verbose=Yes
+ ;;
+ -k|--k|--ke|--kee|--keep)
+ keep=--keep
+ ;;
+ -*)
+ usage
+ ;;
*)
break
;;
# remote-nick is the URL given on the command line (or a shorthand)
# remote-name is the $GIT_DIR relative refs/ path we computed
# for this refspec.
+
+ # the $note_ variable will be fed to git-fmt-merge-msg for further
+ # processing.
case "$remote_name_" in
HEAD)
note_= ;;
refs/tags/*)
note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')"
note_="tag '$note_' of " ;;
+ refs/remotes/*)
+ note_="$(expr "$remote_name_" : 'refs/remotes/\(.*\)')"
+ note_="remote branch '$note_' of " ;;
*)
note_="$remote_name of " ;;
esac
- remote_1_=$(expr "$remote_" : '\(.*\)\.git/*$') &&
+ remote_1_=$(expr "z$remote_" : 'z\(.*\)\.git/*$') &&
remote_="$remote_1_"
note_="$note_$remote_"
then
headc_=$(git-rev-parse --verify "$head_^0") || exit
echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
- echo >&2 "* committish: $head_"
- echo >&2 " $note_"
+ [ "$verbose" ] && echo >&2 "* committish: $head_"
+ [ "$verbose" ] && echo >&2 " $note_"
else
echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
- echo >&2 "* non-commit: $head_"
- echo >&2 " $note_"
+ [ "$verbose" ] && echo >&2 "* non-commit: $head_"
+ [ "$verbose" ] && echo >&2 " $note_"
fi
if test "$local_name_" != ""
then
# is no way to guarantee "fast-forward" anyway.
if test -f "$GIT_DIR/$1"
then
- echo >&2 "* $1: updating with $3"
+ if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
+ then
+ [ "$verbose" ] && echo >&2 "* $1: same as $3"
+ else
+ echo >&2 "* $1: updating with $3"
+ fi
else
echo >&2 "* $1: storing $3"
fi
- git-update-ref "$1" "$2"
+ git-update-ref "$1" "$2"
;;
- refs/heads/*)
+ refs/heads/* | refs/remotes/*)
# $1 is the ref being updated.
# $2 is the new value for the ref.
local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
;;
*,$local)
echo >&2 "* $1: fast forward to $3"
+ echo >&2 " from $local to $2"
git-update-ref "$1" "$2" "$local"
;;
*)
;;
*)
echo >&2 " not updating."
+ exit 1
;;
esac
}
reflist=$(get_remote_refs_for_fetch "$@")
if test "$tags"
then
- taglist=$(git-ls-remote --tags "$remote" |
- sed -e '
- /\^/d
- s/^[^ ]* //
- s/.*/&:&/')
+ taglist=$(IFS=" " &&
+ git-ls-remote $upload_pack --tags "$remote" |
+ while read sha1 name
+ do
+ case "$name" in
+ (*^*) continue ;;
+ esac
+ if git-check-ref-format "$name"
+ then
+ echo ".${name}:${name}"
+ else
+ echo >&2 "warning: tag ${name} ignored"
+ fi
+ done)
if test "$#" -gt 1
then
# remote URL plus explicit refspecs; we need to merge them.
fi
fi
-for ref in $reflist
-do
- refs="$refs$LF$ref"
+fetch_main () {
+ reflist="$1"
+ refs=
- # These are relative path from $GIT_DIR, typically starting at refs/
- # but may be HEAD
- if expr "$ref" : '\.' >/dev/null
- then
- not_for_merge=t
- ref=$(expr "$ref" : '\.\(.*\)')
- else
- not_for_merge=
- fi
- if expr "$ref" : '\+' >/dev/null
- then
- single_force=t
- ref=$(expr "$ref" : '\+\(.*\)')
- else
- single_force=
- fi
- remote_name=$(expr "$ref" : '\([^:]*\):')
- local_name=$(expr "$ref" : '[^:]*:\(.*\)')
+ for ref in $reflist
+ do
+ refs="$refs$LF$ref"
- rref="$rref$LF$remote_name"
+ # These are relative path from $GIT_DIR, typically starting at refs/
+ # but may be HEAD
+ if expr "z$ref" : 'z\.' >/dev/null
+ then
+ not_for_merge=t
+ ref=$(expr "z$ref" : 'z\.\(.*\)')
+ else
+ not_for_merge=
+ fi
+ if expr "z$ref" : 'z+' >/dev/null
+ then
+ single_force=t
+ ref=$(expr "z$ref" : 'z+\(.*\)')
+ else
+ single_force=
+ fi
+ remote_name=$(expr "z$ref" : 'z\([^:]*\):')
+ local_name=$(expr "z$ref" : 'z[^:]*:\(.*\)')
- # There are transports that can fetch only one head at a time...
- case "$remote" in
- http://* | https://*)
- if [ -n "$GIT_SSL_NO_VERIFY" ]; then
- curl_extra_args="-k"
- fi
- remote_name_quoted=$(perl -e '
- my $u = $ARGV[0];
- $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
- print "$u";
- ' "$remote_name")
- head=$(curl -nsf $curl_extra_args "$remote/$remote_name_quoted") &&
- expr "$head" : "$_x40\$" >/dev/null ||
- die "Failed to fetch $remote_name from $remote"
- echo >&2 Fetching "$remote_name from $remote" using http
- git-http-fetch -v -a "$head" "$remote/" || exit
- ;;
- rsync://*)
- TMP_HEAD="$GIT_DIR/TMP_HEAD"
- rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
- head=$(git-rev-parse --verify TMP_HEAD)
- rm -f "$TMP_HEAD"
- test "$rsync_slurped_objects" || {
- rsync -av --ignore-existing --exclude info \
- "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit
+ rref="$rref$LF$remote_name"
- # Look at objects/info/alternates for rsync -- http will
- # support it natively and git native ones will do it on the remote
- # end. Not having that file is not a crime.
- rsync -q "$remote/objects/info/alternates" \
- "$GIT_DIR/TMP_ALT" 2>/dev/null ||
- rm -f "$GIT_DIR/TMP_ALT"
- if test -f "$GIT_DIR/TMP_ALT"
- then
- resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" |
- while read alt
- do
- case "$alt" in 'bad alternate: '*) die "$alt";; esac
- echo >&2 "Getting alternate: $alt"
- rsync -av --ignore-existing --exclude info \
- "$alt" "$GIT_OBJECT_DIRECTORY/" || exit
- done
- rm -f "$GIT_DIR/TMP_ALT"
- fi
- rsync_slurped_objects=t
- }
- ;;
- *)
- # We will do git native transport with just one call later.
- continue ;;
- esac
+ # There are transports that can fetch only one head at a time...
+ case "$remote" in
+ http://* | https://*)
+ if [ -n "$GIT_SSL_NO_VERIFY" ]; then
+ curl_extra_args="-k"
+ fi
+ max_depth=5
+ depth=0
+ head="ref: $remote_name"
+ while (expr "z$head" : "zref:" && expr $depth \< $max_depth) >/dev/null
+ do
+ remote_name_quoted=$(perl -e '
+ my $u = $ARGV[0];
+ $u =~ s/^ref:\s*//;
+ $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
+ print "$u";
+ ' "$head")
+ head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted")
+ depth=$( expr \( $depth + 1 \) )
+ done
+ expr "z$head" : "z$_x40\$" >/dev/null ||
+ die "Failed to fetch $remote_name from $remote"
+ echo >&2 Fetching "$remote_name from $remote" using http
+ git-http-fetch -v -a "$head" "$remote/" || exit
+ ;;
+ rsync://*)
+ TMP_HEAD="$GIT_DIR/TMP_HEAD"
+ rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
+ head=$(git-rev-parse --verify TMP_HEAD)
+ rm -f "$TMP_HEAD"
+ test "$rsync_slurped_objects" || {
+ rsync -av --ignore-existing --exclude info \
+ "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit
- append_fetch_head "$head" "$remote" \
- "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
+ # Look at objects/info/alternates for rsync -- http will
+ # support it natively and git native ones will do it on
+ # the remote end. Not having that file is not a crime.
+ rsync -q "$remote/objects/info/alternates" \
+ "$GIT_DIR/TMP_ALT" 2>/dev/null ||
+ rm -f "$GIT_DIR/TMP_ALT"
+ if test -f "$GIT_DIR/TMP_ALT"
+ then
+ resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" |
+ while read alt
+ do
+ case "$alt" in 'bad alternate: '*) die "$alt";; esac
+ echo >&2 "Getting alternate: $alt"
+ rsync -av --ignore-existing --exclude info \
+ "$alt" "$GIT_OBJECT_DIRECTORY/" || exit
+ done
+ rm -f "$GIT_DIR/TMP_ALT"
+ fi
+ rsync_slurped_objects=t
+ }
+ ;;
+ *)
+ # We will do git native transport with just one call later.
+ continue ;;
+ esac
-done
+ append_fetch_head "$head" "$remote" \
+ "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
-case "$remote" in
-http://* | https://* | rsync://* )
- ;; # we are already done.
-*)
- IFS=" $LF"
- (
- git-fetch-pack "$remote" $rref || echo failed "$remote"
- ) |
- while read sha1 remote_name
- do
- case "$sha1" in
- failed)
- echo >&2 "Fetch failure: $remote"
- exit 1 ;;
+ done
+
+ case "$remote" in
+ http://* | https://* | rsync://* )
+ ;; # we are already done.
+ *)
+ ( : subshell because we muck with IFS
+ IFS=" $LF"
+ (
+ git-fetch-pack $exec $keep --thin "$remote" $rref || echo failed "$remote"
+ ) |
+ while read sha1 remote_name
+ do
+ case "$sha1" in
+ failed)
+ echo >&2 "Fetch failure: $remote"
+ exit 1 ;;
+ esac
+ found=
+ single_force=
+ for ref in $refs
+ do
+ case "$ref" in
+ +$remote_name:*)
+ single_force=t
+ not_for_merge=
+ found="$ref"
+ break ;;
+ .+$remote_name:*)
+ single_force=t
+ not_for_merge=t
+ found="$ref"
+ break ;;
+ .$remote_name:*)
+ not_for_merge=t
+ found="$ref"
+ break ;;
+ $remote_name:*)
+ not_for_merge=
+ found="$ref"
+ break ;;
+ esac
+ done
+ local_name=$(expr "z$found" : 'z[^:]*:\(.*\)')
+ append_fetch_head "$sha1" "$remote" \
+ "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
+ done
+ ) || exit ;;
+ esac
+
+}
+
+fetch_main "$reflist"
+
+# automated tag following
+case "$no_tags$tags" in
+'')
+ case "$reflist" in
+ *:refs/*)
+ # effective only when we are following remote branch
+ # using local tracking branch.
+ taglist=$(IFS=" " &&
+ git-ls-remote $upload_pack --tags "$remote" |
+ sed -ne 's|^\([0-9a-f]*\)[ ]\(refs/tags/.*\)^{}$|\1 \2|p' |
+ while read sha1 name
+ do
+ test -f "$GIT_DIR/$name" && continue
+ git-check-ref-format "$name" || {
+ echo >&2 "warning: tag ${name} ignored"
+ continue
+ }
+ git-cat-file -t "$sha1" >/dev/null 2>&1 || continue
+ echo >&2 "Auto-following $name"
+ echo ".${name}:${name}"
+ done)
+ esac
+ case "$taglist" in
+ '') ;;
+ ?*)
+ fetch_main "$taglist" ;;
esac
- found=
- single_force=
- for ref in $refs
- do
- case "$ref" in
- +$remote_name:*)
- single_force=t
- not_for_merge=
- found="$ref"
- break ;;
- .+$remote_name:*)
- single_force=t
- not_for_merge=t
- found="$ref"
- break ;;
- .$remote_name:*)
- not_for_merge=t
- found="$ref"
- break ;;
- $remote_name:*)
- not_for_merge=
- found="$ref"
- break ;;
- esac
- done
- local_name=$(expr "$found" : '[^:]*:\(.*\)')
- append_fetch_head "$sha1" "$remote" \
- "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
- done || exit
- ;;
esac
# If the original head was empty (i.e. no "master" yet), or