#
USAGE='<fetch-options> <repository> <refspec>...'
+SUBDIRECTORY_OK=Yes
. git-sh-setup
+set_reflog_action "fetch $*"
+cd_to_toplevel ;# probably unnecessary...
+
. git-parse-remote
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
'
IFS="$LF"
+no_tags=
tags=
append=
force=
verbose=
update_head_ok=
+exec=
+keep=
+shallow_depth=
+no_progress=
+test -t 1 || no_progress=--no-progress
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="--upload-pack=$1"
+ ;;
+ --upl=*|--uplo=*|--uploa=*|--upload=*|\
+ --upload-=*|--upload-p=*|--upload-pa=*|--upload-pac=*|--upload-pack=*)
+ exec=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)')
+ shift
+ ;;
-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)
-v|--verbose)
verbose=Yes
;;
+ -k|--k|--ke|--kee|--keep)
+ keep='-k -k'
+ ;;
+ --depth=*)
+ shallow_depth="--depth=`expr "z$1" : 'z-[^=]*=\(.*\)'`"
+ ;;
+ --depth)
+ shift
+ shallow_depth="--depth=$1"
+ ;;
-*)
usage
;;
case "$#" in
0)
- test -f "$GIT_DIR/branches/origin" ||
- test -f "$GIT_DIR/remotes/origin" ||
- die "Where do you want to fetch from today?"
- set origin ;;
+ origin=$(get_default_remote)
+ test -n "$(get_remote_url ${origin})" ||
+ die "Where do you want to fetch from today?"
+ set x $origin ; shift ;;
esac
+if test -z "$exec"
+then
+ # No command line override and we have configuration for the remote.
+ exec="--upload-pack=$(get_uploadpack $1)"
+fi
+
remote_nick="$1"
remote=$(get_remote_url "$@")
refs=
: >"$GIT_DIR/FETCH_HEAD"
fi
+# Global that is reused later
+ls_remote_result=$(git ls-remote $exec "$remote") ||
+ die "Cannot get the repository state from $remote"
+
append_fetch_head () {
- head_="$1"
- remote_="$2"
- remote_name_="$3"
- remote_nick_="$4"
- local_name_="$5"
- case "$6" in
- t) not_for_merge_='not-for-merge' ;;
- '') not_for_merge_= ;;
- esac
-
- # remote-nick is the URL given on the command line (or a shorthand)
- # remote-name is the $GIT_DIR relative refs/ path we computed
- # for this refspec.
- case "$remote_name_" in
- HEAD)
- note_= ;;
- refs/heads/*)
- note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')"
- note_="branch '$note_' of " ;;
- refs/tags/*)
- note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')"
- note_="tag '$note_' of " ;;
- *)
- note_="$remote_name of " ;;
- esac
- remote_1_=$(expr "$remote_" : '\(.*\)\.git/*$') &&
- remote_="$remote_1_"
- note_="$note_$remote_"
-
- # 2.6.11-tree tag would not be happy to be fed to resolve.
- if git-cat-file commit "$head_" >/dev/null 2>&1
- then
- headc_=$(git-rev-parse --verify "$head_^0") || exit
- echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
- [ "$verbose" ] && echo >&2 "* committish: $head_"
- [ "$verbose" ] && echo >&2 " $note_"
- else
- echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
- [ "$verbose" ] && echo >&2 "* non-commit: $head_"
- [ "$verbose" ] && echo >&2 " $note_"
- fi
- if test "$local_name_" != ""
- then
- # We are storing the head locally. Make sure that it is
- # a fast forward (aka "reverse push").
- fast_forward_local "$local_name_" "$head_" "$note_"
- fi
+ flags=
+ test -n "$verbose" && flags="$flags$LF-v"
+ test -n "$force$single_force" && flags="$flags$LF-f"
+ GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION" \
+ git-fetch--tool $flags append-fetch-head "$@"
}
-fast_forward_local () {
- mkdir -p "$(dirname "$GIT_DIR/$1")"
- case "$1" in
- refs/tags/*)
- # Tags need not be pointing at commits so there
- # is no way to guarantee "fast-forward" anyway.
- if test -f "$GIT_DIR/$1"
- then
- if now_=$(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"
- ;;
-
- refs/heads/*)
- # $1 is the ref being updated.
- # $2 is the new value for the ref.
- local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
- if test "$local"
- then
- # Require fast-forward.
- mb=$(git-merge-base "$local" "$2") &&
- case "$2,$mb" in
- $local,*)
- echo >&2 "* $1: same as $3"
- ;;
- *,$local)
- echo >&2 "* $1: fast forward to $3"
- git-update-ref "$1" "$2" "$local"
- ;;
- *)
- false
- ;;
- esac || {
- echo >&2 "* $1: does not fast forward to $3;"
- case ",$force,$single_force," in
- *,t,*)
- echo >&2 " forcing update."
- git-update-ref "$1" "$2" "$local"
- ;;
- *)
- echo >&2 " not updating."
- ;;
- esac
- }
- else
- echo >&2 "* $1: storing $3"
- git-update-ref "$1" "$2"
- fi
- ;;
- esac
-}
+# updating the current HEAD with git-fetch in a bare
+# repository is always fine.
+if test -z "$update_head_ok" && test $(is_bare_repository) = false
+then
+ orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
+fi
-case "$update_head_ok" in
+# Allow --notags from remote.$1.tagopt
+case "$tags$no_tags" in
'')
- orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
- ;;
+ case "$(git-config --get "remote.$1.tagopt")" in
+ --no-tags)
+ no_tags=t ;;
+ esac
esac
# If --tags (and later --heads or --all) is specified, then we are
reflist=$(get_remote_refs_for_fetch "$@")
if test "$tags"
then
- taglist=$(git-ls-remote --tags "$remote" |
- sed -e '
- /\^/d
- s/^[^ ]* //
- s/.*/.&:&/')
+ taglist=`IFS=' ' &&
+ echo "$ls_remote_result" |
+ git-show-ref --exclude-existing=refs/tags/ |
+ while read sha1 name
+ do
+ echo ".${name}:${name}"
+ done` || exit
if test "$#" -gt 1
then
# remote URL plus explicit refspecs; we need to merge them.
fi
fi
-for ref in $reflist
-do
- refs="$refs$LF$ref"
-
- # 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" : '[^:]*:\(.*\)')
-
- rref="$rref$LF$remote_name"
-
- # There are transports that can fetch only one head at a time...
- case "$remote" in
- http://* | https://*)
- if [ -n "$GIT_SSL_NO_VERIFY" ]; then
- curl_extra_args="-k"
+fetch_all_at_once () {
+
+ eval=$(echo "$1" | git-fetch--tool parse-reflist "-")
+ eval "$eval"
+
+ ( : subshell because we muck with IFS
+ IFS=" $LF"
+ (
+ if test "$remote" = . ; then
+ git-show-ref $rref || echo failed "$remote"
+ elif test -f "$remote" ; then
+ test -n "$shallow_depth" &&
+ die "shallow clone with bundle is not supported"
+ git-bundle unbundle "$remote" $rref ||
+ echo failed "$remote"
+ else
+ git-fetch-pack --thin $exec $keep $shallow_depth $no_progress \
+ "$remote" $rref ||
+ echo failed "$remote"
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 -nsfL $curl_extra_args "$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
-
- # 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
+ ) |
+ (
+ flags=
+ test -n "$verbose" && flags="$flags -v"
+ test -n "$force" && flags="$flags -f"
+ GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION" \
+ git-fetch--tool $flags native-store \
+ "$remote" "$remote_nick" "$refs"
+ )
+ ) || exit
+
+}
+
+fetch_per_ref () {
+ reflist="$1"
+ refs=
+ rref=
+
+ for ref in $reflist
+ do
+ refs="$refs$LF$ref"
+
+ # 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[^:]*:\(.*\)')
+
+ rref="$rref$LF$remote_name"
+
+ # There are transports that can fetch only one head at a time...
+ case "$remote" in
+ http://* | https://* | ftp://*)
+ test -n "$shallow_depth" &&
+ die "shallow clone with http not supported"
+ proto=`expr "$remote" : '\([^:]*\):'`
+ if [ -n "$GIT_SSL_NO_VERIFY" ]; then
+ curl_extra_args="-k"
+ fi
+ if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \
+ "`git-config --bool http.noEPSV`" = true ]; then
+ noepsv_opt="--disable-epsv"
+ fi
+
+ # Find $remote_name from ls-remote output.
+ head=$(
+ IFS=' '
+ echo "$ls_remote_result" |
+ while read sha1 name
do
- case "$alt" in 'bad alternate: '*) die "$alt";; esac
- echo >&2 "Getting alternate: $alt"
- rsync -av --ignore-existing --exclude info \
- "$alt" "$GIT_OBJECT_DIRECTORY/" || exit
+ test "z$name" = "z$remote_name" || continue
+ echo "$sha1"
+ break
done
- rm -f "$GIT_DIR/TMP_ALT"
- fi
- rsync_slurped_objects=t
- }
- ;;
- *)
- # We will do git native transport with just one call later.
- continue ;;
- esac
+ )
+ expr "z$head" : "z$_x40\$" >/dev/null ||
+ die "No such ref $remote_name at $remote"
+ echo >&2 "Fetching $remote_name from $remote using $proto"
+ git-http-fetch -v -a "$head" "$remote/" || exit
+ ;;
+ rsync://*)
+ test -n "$shallow_depth" &&
+ die "shallow clone with rsync not supported"
+ 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
+ }
+ ;;
+ esac
-done
+ append_fetch_head "$head" "$remote" \
+ "$remote_name" "$remote_nick" "$local_name" "$not_for_merge" || exit
-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: $remote"
- exit 1 ;;
+ done
+
+}
+
+fetch_main () {
+ case "$remote" in
+ http://* | https://* | ftp://* | rsync://* )
+ fetch_per_ref "$@"
+ ;;
+ *)
+ fetch_all_at_once "$@"
+ ;;
+ esac
+}
+
+fetch_main "$reflist" || exit
+
+# automated tag following
+case "$no_tags$tags" in
+'')
+ case "$reflist" in
+ *:refs/*)
+ # effective only when we are following remote branch
+ # using local tracking branch.
+ taglist=$(IFS=' ' &&
+ echo "$ls_remote_result" |
+ git-show-ref --exclude-existing=refs/tags/ |
+ while read sha1 name
+ do
+ git-cat-file -t "$sha1" >/dev/null 2>&1 || continue
+ echo >&2 "Auto-following $name"
+ echo ".${name}:${name}"
+ done)
+ esac
+ case "$taglist" in
+ '') ;;
+ ?*)
+ # do not deepen a shallow tree when following tags
+ shallow_depth=
+ fetch_main "$taglist" || exit ;;
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
# if we were told not to worry, we do not have to check.
-case ",$update_head_ok,$orig_head," in
-*,, | t,* )
+case "$orig_head" in
+'')
;;
-*)
+?*)
curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
if test "$curr_head" != "$orig_head"
then
- git-update-ref HEAD "$orig_head"
+ git-update-ref \
+ -m "$GIT_REFLOG_ACTION: Undoing incorrectly fetched HEAD." \
+ HEAD "$orig_head"
die "Cannot fetch into the current branch."
fi
;;