git-fetch-script(1)
===================
-v0.99.4, Aug 2005
+v0.99.5, Aug 2005
NAME
----
SYNOPSIS
--------
-'git-fetch-script' <repository> [ <head> | tag <tag> ]
+'git-fetch-script' <repository> <refspec>...
DESCRIPTION
-----------
-Fetches a named head or a tag from another repository, along
-with the objects necessary to complete that head or tag. The
-head to pull defaults to HEAD if unspecified. The head or tag
-fetched from the remote repository is stored in
-$GIT_DIR/FETCH_HEAD.
-
-When a <tag> is specified, the <tag> fetched from the remote is
-also copied to the local $GIT_DIR/tags/<tag> file. When no
-<head> nor <tag> is specified, and <repository> was specified
-with the short-hand notation (i.e. naming a file under the
-$GIT_DIR/branches directory), the head fetched from the remote
-repository is also copied to the local $GIT_DIR/heads/<repository>
-file.
+Fetches named heads or tags from another repository, along with
+the objects necessary to complete them.
+
+The ref names and their object names of fetched refs are stored
+in $GIT_DIR/FETCH_HEAD. This information is left for a later merge
+operation done by "git resolve" or "git octopus".
OPTIONS
--- /dev/null
+git-octopus-script(1)
+=====================
+v0.99.5, Aug 2005
+
+NAME
+----
+git-octopus-script - Merge more than two commits.
+
+
+SYNOPSIS
+--------
+'git-octopus'
+
+DESCRIPTION
+-----------
+After running 'git fetch', $GIT_DIR/FETCH_HEAD contains the
+following information, one line per remote ref:
+
+------------------------------------------------
+<object name> <ref name> from <repository>
+------------------------------------------------
+
+Using this information, create and commit an Octopus merge on
+top of the current HEAD.
+
+
+Author
+------
+Written by Junio C Hamano <junkio@cox.net>
+
+
+Documentation
+--------------
+Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
+
+GIT
+---
+Part of the link:git.html[git] suite
+
SYNOPSIS
--------
-'git-pull-script' <repository> [ <head> | tag <tag> ]
+'git-pull-script' <repository> <refspec>...
DESCRIPTION
-----------
-Runs 'git-fetch-script' with the given parameters, then
-'git-resolve-script' to merge the local HEAD and FETCH_HEAD.
+Runs 'git-fetch-script' with the given parameters.
+
+When only one ref is downloaded, runs 'git resolve' to merge it
+into the local HEAD. Otherwise uses 'git octopus' to merge them
+into the local HEAD.
OPTIONS
NAME
----
-git-push-script - Some git command not yet documented.
+git-push-script - Update remote refs along with associated objects.
SYNOPSIS
--------
-'git-push-script' [ --option ] <args>...
+'git-push-script' [--all] [--force] <repository> <refspec>...
DESCRIPTION
-----------
-Does something not yet documented.
+
+Updates remote refs using local refs, while sending objects
+necessary to complete the given refs.
OPTIONS
-------
---option::
- Some option not yet documented.
-
-<args>...::
- Some argument not yet documented.
+include::pull-fetch-param.txt[]
Author
git-resolve-script(1)
=====================
-v0.99.4, Aug 2005
+v0.99.5, Aug 2005
NAME
----
-git-resolve-script - Script used to merge two trees
+git-resolve-script - Merge two commits
SYNOPSIS
--------
-'git-resolve-script'
+'git resolve' <current> <merged> <message>
DESCRIPTION
-----------
-This script is used by Linus to merge two trees.
+Given two commits and a merge message, merge the <merged> commit
+into <current> commit, with the commit log message <message>.
+
+When <current> is a descendant of <merged>, or <current> is an
+ancestor of <merged>, no new commit is created and the <message>
+is ignored. The former is informally called "already up to
+date", and the latter is often called "fast forward".
Author
SYNOPSIS
--------
-'git-send-pack' [--all] [--exec=<git-receive-pack>] [<host>:]<directory> [<head>...]
+'git-send-pack' [--all] [--force] [--exec=<git-receive-pack>] [<host>:]<directory> [<ref>...]
DESCRIPTION
-----------
Invokes 'git-receive-pack' on a possibly remote repository, and
-updates it from the current repository, sending named heads.
+updates it from the current repository, sending named refs.
OPTIONS
Instead of explicitly specifying which refs to update,
update all refs that locally exist.
+--force::
+ Usually, the command refuses to update a remote ref that
+ is not an ancestor of the local ref used to overwrite it.
+ This flag disables the check. What this means is that
+ the remote repository can lose commits; use it with
+ care.
+
<host>::
A remote host to house the repository. When this
part is specified, 'git-receive-pack' is invoked via
<directory>::
The repository to update.
-<head>...:
+<ref>...:
The remote refs to update.
remote end.
With '--all' flag, all refs that exist locally are transfered to
-the remote side. You cannot specify any '<head>' if you use
+the remote side. You cannot specify any '<ref>' if you use
this flag.
-Without '--all' and without any '<head>', the refs that exist
+Without '--all' and without any '<ref>', the refs that exist
both on the local side and on the remote side are updated.
-When '<head>'s are specified explicitly, it can be either a
+When '<ref>'s are specified explicitly, it can be either a
single pattern, or a pair of such pattern separated by a colon
':' (this means that a ref name cannot have a colon in it). A
single pattern '<name>' is just a shorthand for '<name>:<name>'.
+
Each pattern pair consists of the source side (before the colon)
-and the destination side (after the colon). The ref that is
+and the destination side (after the colon). The ref to be
pushed is determined by finding a match that matches the source
side, and where it is pushed is determined by using the
destination side.
- - It is an error if <src> does not match exactly one of local
- refs.
+ - It is an error if <src> does not match exactly one of the
+ local refs.
- It is an error if <dst> matches more than one remote refs.
exist in the set of remote refs; the ref matched <src>
locally is used as the name of the destination.
+Without '--force', the <src> ref is stored at the remote only if
+<dst> does not exist, or <dst> is a proper subset (i.e. an
+ancestor) of <src>. This check, known as "fast forward check",
+is performed in order to avoid accidentally overwriting the
+remote ref and lose other peoples' commits from there.
+
+With '--force', the fast forward check is disabled for all refs.
+
+Optionally, a <ref> parameter can be prefixed with a plus '+' sign
+to disable the fast-forward check only on that ref.
+
Author
------
link:git-pull-script.html[git-pull-script]::
Fetch from and merge with a remote repository.
-ulink:git-commit-script.html[git-commit-script]::
+link:git-resolve-script.html[git-resolve-script]::
+ Merge two commits.
+
+link:git-octopus-script.html[git-octopus-script]::
+ Merge more than two commits.
+
+link:git-push-script.html[git-push-script]::
+ Update remote refs along with associated objects.
+
+link:git-commit-script.html[git-commit-script]::
Record changes to the repository.
link:git-show-branch.html[git-show-branch]::
link:git-prune-script.html[git-prune-script]::
Prunes all unreachable objects from the object database
-link:git-resolve-script.html[git-resolve-script]::
- Script used to merge two trees
-
link:git-tag-script.html[git-tag-script]::
An example script to create a tag object signed with GPG
link:git-patch-id.html[git-patch-id]::
git-patch-id.
-link:git-push-script.html[git-push-script]::
- git-push-script.
-
link:git-rebase-script.html[git-rebase-script]::
git-rebase-script.
Local directory
/path/to/repo.git/
- In addition to that, as a short-hand, the name of a file
- in $GIT_DIR/branches directory can be specified; the
- named file should contain a single line, a URL in one of
- the above formats, optionally followed by a hash '#' and
- the name of remote head.
-
-<head>::
- The remote head name to fetch from. That is, make the
- objects reachable from the commit recorded in
- $GIT_DIR/refs/heads/<head> in the remote repository
- available locally.
-
-tag <tag>::
- The remote head tag to fetch from. That is, make the
- objects reachable from the commit recorded in
- $GIT_DIR/refs/tags/<tag> in the remote repository
- available locally.
+ In addition to the above, as a short-hand, the name of a
+ file in $GIT_DIR/remotes directory can be given; the
+ named file should be in the following format:
+ URL: one of the above URL format
+ Push: <refspec>...
+ Pull: <refspec>...
+
+ When such a short-hand is specified in place of
+ <repository> without <refspec> parameters on the command
+ line, <refspec>... specified on Push lines or Pull lines
+ are used for "git push" and "git fetch/pull",
+ respectively.
+
+ The name of a file in $GIT_DIR/branches directory can be
+ specified as an older notation short-hand; the named
+ file should contain a single line, a URL in one of the
+ above formats, optionally followed by a hash '#' and the
+ name of remote head (URL fragment notation).
+ $GIT_DIR/branches/<remote> file that stores a <url>
+ without the fragment is equivalent to have this in the
+ corresponding file in the $GIT_DIR/remotes/ directory
+
+ URL: <url>
+ Pull: refs/heads/master:<remote>
+
+ while having <url>#<head> is equivalent to
+
+ URL: <url>
+ Pull: refs/heads/<head>:<remote>
+
+<refspec>::
+ The canonical format of a <refspec> parameter is
+ +?<src>:<dst>; that is, an optional plus '+', followed
+ by the source ref, followed by a colon ':', followed by
+ the destination ref.
+
+ When used in "git push", the <src> side can be an
+ arbitrary "SHA1 expression" that can be used as an
+ argument to "git-cat-file -t". E.g. "master~4" (push
+ four parents before the current master head).
+
+ For "git push", the local ref that matches <src> is used
+ to fast forward the remote ref that matches <dst>. If
+ the optional plus '+' is used, the remote ref is updated
+ even if it does not result in a fast forward update.
+
+ For "git fetch/pull", the remote ref that matches <src>
+ is fetched, and if <dst> is not empty string, the local
+ ref that matches it is fast forwarded using <src>.
+ Again, if the optional plus '+' is used, the local ref
+ is updated even if it does not result in a fast forward
+ update.
+
+ Some short-cut notations are also supported.
+
+ * For backward compatibility, "tag" is almost ignored;
+ it just makes the following parameter <tag> to mean a
+ refspec "refs/tags/<tag>:refs/tags/<tag>".
+
+ * A parameter <ref> without a colon is equivalent to
+ <ref>: when pulling/fetching, and <ref>:<ref> when
+ pushing. That is, do not store it locally if
+ fetching, and update the same name if pushing.
It is likely that you will be pulling from the same remote
repository from time to time. As a short hand, you can store
-the remote repository URL in a file under .git/branches/
+the remote repository URL in a file under .git/remotes/
directory, like this:
- mkdir -p .git/branches
- echo rsync://kernel.org/pub/scm/git/git.git/ \
- >.git/branches/linus
+------------------------------------------------
+mkdir -p .git/remotes/
+cat >.git/remotes/linus <<\EOF
+URL: http://www.kernel.org/pub/scm/git/git.git/
+EOF
+------------------------------------------------
and use the filename to "git pull" instead of the full URL.
-The contents of a file under .git/branches can even be a prefix
+The URL specified in such file can even be a prefix
of a full URL, like this:
- echo rsync://kernel.org/pub/.../jgarzik/ >.git/branches/jgarzik
+------------------------------------------------
+cat >.git/remotes/jgarzik <<\EOF
+URL: http://www.kernel.org/pub/scm/linux/git/jgarzik/
+EOF
+------------------------------------------------
+
Examples.
the above are equivalent to:
- (1) git pull rsync://kernel.org/pub/scm/git/git.git/ HEAD
- (2) git pull rsync://kernel.org/pub/scm/git/git.git/ tag v0.99.1
- (3) git pull rsync://kernel.org/pub/.../jgarzik/netdev-2.6.git e100
+ (1) git pull http://www.kernel.org/pub/scm/git/git.git/ HEAD
+ (2) git pull http://www.kernel.org/pub/scm/git/git.git/ tag v0.99.1
+ (3) git pull http://www.kernel.org/pub/.../jgarzik/netdev-2.6.git e100
Publishing your work
If you are coming from CVS background, the style of cooperation
suggested in the previous section may be new to you. You do not
have to worry. git supports "shared public repository" style of
-cooperation you are more familiar with as well.
-
-For this, you should set up a public repository on a machine
-that are reachable via SSH by people with "commit privileges".
-Put them in the same user group and make the repository writable
-by that group. Then, each committer would first merge with the
-head of the branch of choice, and run "git push" to update the
-branch at the public repository. "git push" refuses to update
-if the reference on the remote side is not an ancestor of the
-commit you are pushing, to prevent you from overwriting changes
-made by somebody else.
+cooperation you are probably more familiar with as well.
+
+For this, set up a public repository on a machine that is
+reachable via SSH by people with "commit privileges". Put the
+committers in the same user group and make the repository
+writable by that group.
+
+Each committer would then:
+
+ - clone the shared repository to a local repository,
+
+------------------------------------------------
+$ git clone repo.shared.xz:/pub/scm/project.git/ my-project
+$ cd my-project
+$ hack away
+------------------------------------------------
+
+ - merge the work others might have done while you were
+ hacking away.
+
+------------------------------------------------
+$ git pull origin
+$ test the merge result
+------------------------------------------------
+
+ - push your work as the new head of the shared
+ repository.
+
+------------------------------------------------
+$ git push origin master
+------------------------------------------------
+If somebody else pushed into the same shared repository while
+you were working locally, the last step "git push" would
+complain, telling you that the remote "master" head does not
+fast forward. You need to pull and merge those other changes
+back before you push your work when it happens.
[ to be continued.. cvsimports ]
git-reset-script git-add-script git-checkout-script git-clone-script \
gitk git-cherry git-rebase-script git-relink-script git-repack-script \
git-format-patch-script git-sh-setup-script git-push-script \
- git-branch-script git-parse-remote git-verify-tag-script \
+ git-branch-script git-parse-remote-script git-verify-tag-script \
git-ls-remote-script git-clone-dumb-http git-rename-script \
git-request-pull-script git-bisect-script
SCRIPTS += git-count-objects-script
# SCRIPTS += git-send-email-script
SCRIPTS += git-revert-script
+SCRIPTS += git-octopus-script
PROG= git-update-cache git-diff-files git-init-db git-write-tree \
git-read-tree git-commit-tree git-cat-file git-fsck-cache \
struct ref *next;
unsigned char old_sha1[20];
unsigned char new_sha1[20];
+ unsigned char force;
struct ref *peer_ref; /* when renaming */
char name[0];
};
struct refspec {
char *src;
char *dst;
+ char force;
};
+/*
+ * A:B means fast forward remote B with local A.
+ * +A:B means overwrite remote B with local A.
+ * +A is a shorthand for +A:A.
+ * A is a shorthand for A:A.
+ */
static struct refspec *parse_ref_spec(int nr_refspec, char **refspec)
{
int i;
- struct refspec *rs = xmalloc(sizeof(*rs) * (nr_refspec + 1));
+ struct refspec *rs = xcalloc(sizeof(*rs), (nr_refspec + 1));
for (i = 0; i < nr_refspec; i++) {
char *sp, *dp, *ep;
sp = refspec[i];
+ if (*sp == '+') {
+ rs[i].force = 1;
+ sp++;
+ }
ep = strchr(sp, ':');
if (ep) {
dp = ep + 1;
error("dst ref %s receives from more than one src.",
matched_dst->name);
}
- else
+ else {
matched_dst->peer_ref = matched_src;
+ matched_dst->force = rs[i].force;
+ }
}
return -errs;
}
bisect_bad() {
bisect_autostart
case "$#" in 0 | 1) ;; *) usage ;; esac
- rev=$(git-rev-parse --revs-only --verify --default HEAD "$@") || exit
+ rev=$(git-rev-parse --verify --default HEAD "$@") || exit
echo "$rev" > "$GIT_DIR/refs/bisect/bad"
bisect_auto_next
}
bisect_autostart
case "$#" in
0) revs=$(git-rev-parse --verify HEAD) || exit ;;
- *) revs=$(git-rev-parse --revs-only "$@") || exit ;;
+ *) revs=$(git-rev-parse --revs-only --no-flags "$@") || exit ;;
esac
for rev in $revs
do
head="$2^0" ;;
esac
branchname="$1"
-rev=$(git-rev-parse --revs-only --verify "$head") || exit
+rev=$(git-rev-parse --verify "$head") || exit
[ -e "$GIT_DIR/refs/heads/$branchname" ] && die "$branchname already exists"
esac
# Update origin.
-mkdir -p "$D/.git/branches/" &&
-rm -f "$D/.git/branches/origin" &&
-echo "$repo" >"$D/.git/branches/origin"
+mkdir -p "$D/.git/remotes/" &&
+rm -f "$D/.git/remotes/origin" &&
+echo >"$D/.git/remotes/origin" \
+"URL: $repo
+Pull: master:origin"
#!/bin/sh
#
. git-sh-setup-script || die "Not a git archive"
-. git-parse-remote "$@"
-merge_repo="$_remote_repo"
-merge_head="$_remote_head"
-merge_store="$_remote_store"
-
-TMP_HEAD="$GIT_DIR/TMP_HEAD"
-
-case "$merge_repo" in
-http://* | https://*)
- if [ -n "$GIT_SSL_NO_VERIFY" ]; then
- curl_extra_args="-k"
- fi
- _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" &&
- head=$(curl -nsf $curl_extra_args "$merge_repo/$merge_head") &&
- expr "$head" : "$_x40\$" >/dev/null || {
- echo >&2 "Failed to fetch $merge_head from $merge_repo"
- exit 1
- }
- echo Fetching "$merge_head" using http
- git-http-pull -v -a "$head" "$merge_repo/" || exit
- ;;
-rsync://*)
- rsync -L "$merge_repo/$merge_head" "$TMP_HEAD" || exit 1
- head=$(git-rev-parse TMP_HEAD)
- rm -f "$TMP_HEAD"
- rsync -avz --ignore-existing "$merge_repo/objects/" "$GIT_OBJECT_DIRECTORY/"
- ;;
-*)
- head=$(git-fetch-pack "$merge_repo" "$merge_head")
- if h=`expr "$head" : '\([^ ][^ ]*\) '`
+. git-parse-remote-script
+_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"
+
+append=
+force=
+while case "$#" in 0) break ;; esac
+do
+ case "$1" in
+ -a|--a|--ap|--app|--appe|--appen|--append)
+ append=t
+ shift
+ ;;
+ -f|--f|--fo|--for|--forc|--force)
+ force=t
+ shift
+ ;;
+ *)
+ break
+ ;;
+ esac
+done
+
+case "$#" in
+0)
+ test -f "$GIT_DIR/branches/origin" ||
+ test -f "$GIT_DIR/remotes/origin" ||
+ die "Where do you want to fetch from?"
+ set origin ;;
+esac
+
+remote_nick="$1"
+remote=$(get_remote_url "$@")
+refs=
+rref=
+rsync_slurped_objects=
+
+if test "" = "$append"
+then
+ : >$GIT_DIR/FETCH_HEAD
+fi
+
+append_fetch_head () {
+ head_="$1"
+ remote_="$2"
+ remote_name_="$3"
+ remote_nick_="$4"
+ local_name_="$5"
+
+ # 2.6.11-tree tag would not be happy to be fed to resolve.
+ if git-cat-file commit "$head_" >/dev/null 2>&1
+ then
+ head_=$(git-rev-parse --verify "$head_^0") || exit
+ note_="$head_ $remote_name_ from $remote_nick_"
+ echo "$note_" >>$GIT_DIR/FETCH_HEAD
+ echo >&2 "* committish: $note_"
+ else
+ echo >&2 "* non-commit: $note_"
+ fi
+ if test "$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_" "$remote_" "$remote_name_"
+ fi
+}
+
+fast_forward_local () {
+ 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/$1"
then
- head=$h
+ echo >&2 "* $1: updating with $4"
+ echo >&2 " from $3."
+ else
+ echo >&2 "* $1: storing $4"
+ echo >&2 " from $3."
fi
+ echo "$2" >"$GIT_DIR/$1" ;;
+
+ refs/heads/*)
+ # NEEDSWORK: use the same cmpxchg protocol here.
+ echo "$2" >"$GIT_DIR/$1.lock"
+ if test -f "$GIT_DIR/$1"
+ then
+ local=$(git-rev-parse --verify "$1^0") &&
+ mb=$(git-merge-base "$local" "$2") &&
+ case "$2,$mb" in
+ $local,*)
+ echo >&2 "* $1: same as $4"
+ echo >&2 " from $3"
+ ;;
+ *,$local)
+ echo >&2 "* $1: fast forward to $4"
+ echo >&2 " from $3"
+ ;;
+ *)
+ false
+ ;;
+ esac || {
+ echo >&2 "* $1: does not fast forward to $4"
+ case "$force,$single_force" in
+ t,* | *,t)
+ echo >&2 " from $3; forcing update."
+ ;;
+ *)
+ mv "$GIT_DIR/$1.lock" "$GIT_DIR/$1.remote"
+ echo >&2 " from $3; leaving it in '$1.remote'"
+ ;;
+ esac
+ }
+ else
+ echo >&2 "* $1: storing $4"
+ echo >&2 " from $3."
+ fi
+ test -f "$GIT_DIR/$1.lock" &&
+ mv "$GIT_DIR/$1.lock" "$GIT_DIR/$1"
;;
-esac || exit 1
+ esac
+}
+
+for ref in $(get_remote_refs_for_fetch "$@")
+do
+ refs="$refs $ref"
+
+ # These are relative path from $GIT_DIR, typically starting at refs/
+ # but may be HEAD
+ if expr "$ref" : '\+' >/dev/null
+ then
+ single_force=t
+ ref=$(expr "$ref" : '\+\(.*\)')
+ else
+ single_force=
+ fi
+ remote_name=$(expr "$ref" : '\([^:]*\):')
+ local_name=$(expr "$ref" : '[^:]*:\(.*\)')
-git-rev-parse --verify "$head" > /dev/null || exit 1
+ rref="$rref $remote_name"
-case "$merge_store" in
-'')
+ # 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
+ head=$(curl -nsf $curl_extra_args "$remote/$remote_name") &&
+ expr "$head" : "$_x40\$" >/dev/null ||
+ die "Failed to fetch $remote_name from $remote"
+ echo Fetching "$remote_name from $remote" using http
+ git-http-pull -v -a "$head" "$remote/" || exit
;;
-*)
- echo "$head" > "$GIT_DIR/$merge_store"
-esac &&
+ rsync://*)
+ TMP_HEAD="$GIT_DIR/TMP_HEAD"
+ rsync -L "$remote/$remote_name" "$TMP_HEAD" || exit 1
+ head=$(git-rev-parse TMP_HEAD)
+ rm -f "$TMP_HEAD"
+ test "$rsync_slurped_objects" || {
+ rsync -avz --ignore-existing "$remote/objects/" \
+ "$GIT_OBJECT_DIRECTORY/" || exit
+ rsync_slurped_objects=t
+ }
+ ;;
+ *)
+ # We will do git native transport with just one call later.
+ continue ;;
+ esac
-# FETCH_HEAD is fed to git-resolve-script which will eventually be
-# passed to git-commit-tree as one of the parents. Make sure we do
-# not give a tag object ID.
+ append_fetch_head "$head" "$remote" "$remote_name" "$remote_nick" "$local_name"
+
+done
+
+case "$remote" in
+http://* | https://* | rsync://* )
+ ;; # we are already done.
+*)
+ git-fetch-pack "$remote" $rref |
+ while read sha1 remote_name
+ do
+ found=
+ single_force=
+ for ref in $refs
+ do
+ case "$ref" in
+ +$remote_name:*)
+ single_force=t
+ found="$ref"
+ break ;;
+ $remote_name:*)
+ found="$ref"
+ break ;;
+ esac
+ done
-git-rev-parse "$head^0" >"$GIT_DIR/FETCH_HEAD"
+ local_name=$(expr "$found" : '[^:]*:\(.*\)')
+ append_fetch_head "$sha1" "$remote" "$remote_name" "$remote_nick" "$local_name"
+ done
+ ;;
+esac
#!/bin/sh
-revs=$(git-rev-parse --revs-only --default HEAD "$@") || exit
+revs=$(git-rev-parse --revs-only --no-flags --default HEAD "$@") || exit
[ "$revs" ] || die "No HEAD ref"
git-rev-list --pretty $(git-rev-parse --default HEAD "$@") | LESS=-S ${PAGER:-less}
,,,) heads=heads tags=tags other=other ;;
esac
-. git-parse-remote "$1"
-peek_repo="$_remote_repo"
+. git-parse-remote-script
+peek_repo="$(get_remote_url "$@")"
shift
tmp=.ls-remote-$$
--- /dev/null
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+# Resolve two or more trees recorded in $GIT_DIR/FETCH_HEAD.
+#
+. git-sh-setup-script || die "Not a git archive"
+
+usage () {
+ die "usage: git octopus"
+}
+
+# Sanity check the heads early.
+while read SHA1 REPO
+do
+ test $(git-cat-file -t $SHA1) = "commit" ||
+ die "$REPO given to octopus is not a commit"
+done <"$GIT_DIR/FETCH_HEAD"
+
+head=$(git-rev-parse --verify HEAD) || exit
+
+git-update-cache --refresh ||
+ die "Your working tree is dirty."
+test "$(git-diff-cache --cached "$head")" = "" ||
+ die "Your working tree does not match HEAD."
+
+# MRC is the current "merge reference commit"
+# MRT is the current "merge result tree"
+
+MRC=$head MSG= PARENT="-p $head"
+MRT=$(git-write-tree)
+CNT=1 ;# counting our head
+NON_FF_MERGE=0
+while read SHA1 REPO
+do
+ common=$(git-merge-base $MRC $SHA1) ||
+ die "Unable to find common commit with $SHA1 from $REPO"
+
+ if test "$common" = $SHA1
+ then
+ echo "Already up-to-date: $REPO"
+ continue
+ fi
+
+ CNT=`expr $CNT + 1`
+ PARENT="$PARENT -p $SHA1"
+ MSG="$MSG
+ $REPO"
+
+ if test "$common,$NON_FF_MERGE" = "$MRC,0"
+ then
+ # The first head being merged was a fast-forward.
+ # Advance MRC to the head being merged, and use that
+ # tree as the intermediate result of the merge.
+ # We still need to count this as part of the parent set.
+
+ echo "Fast forwarding to: $REPO"
+ git-read-tree -u -m $head $SHA1 || exit
+ MRC=$SHA1 MRT=$(git-write-tree)
+ continue
+ fi
+
+ NON_FF_MERGE=1
+
+ echo "Trying simple merge with $REPO"
+ git-read-tree -u -m $common $MRT $SHA1 || exit
+ next=$(git-write-tree 2>/dev/null)
+ if test $? -ne 0
+ then
+ echo "Simple merge did not work, trying automatic merge."
+ git-merge-cache -o git-merge-one-file-script -a || {
+ git-read-tree --reset "$head"
+ git-checkout-cache -f -q -u -a
+ die "Automatic merge failed; should not be doing Octopus"
+ }
+ next=$(git-write-tree 2>/dev/null)
+ fi
+ MRC=$common
+ MRT=$next
+done <"$GIT_DIR/FETCH_HEAD"
+
+# Just to be careful in case the user feeds nonsense to us.
+case "$CNT" in
+1)
+ echo "No changes."
+ exit 0 ;;
+2)
+ echo "Not an Octopus; making an ordinary commit."
+ MSG="Merge "`expr "$MSG" : '. \(.*\)'` ; # remove LF and TAB
+ ;;
+*)
+ # In an octopus, the original head is just one of the equals,
+ # so we should list it as such.
+ HEAD_LINK=`readlink "$GIT_DIR/HEAD"`
+ MSG="Octopus merge of the following:
+
+ $HEAD_LINK from .$MSG"
+ ;;
+esac
+result_commit=$(echo "$MSG" | git-commit-tree $MRT $PARENT)
+echo "Committed merge $result_commit"
+echo $result_commit >"$GIT_DIR"/HEAD
+git-diff-tree -p $head $result_commit | git-apply --stat
+++ /dev/null
-: To be included in git-pull and git-fetch scripts.
-
-# A remote repository can be specified on the command line
-# in one of the following formats:
-#
-# <repo>
-# <repo> <head>
-# <repo> tag <tag>
-#
-# where <repo> could be one of:
-#
-# a URL (including absolute or local pathname)
-# a short-hand
-# a short-hand followed by a trailing path
-#
-# A short-hand <name> has a corresponding file $GIT_DIR/branches/<name>,
-# whose contents is a URL, possibly followed by a URL fragment #<head>
-# to name the default branch on the remote side to fetch from.
-
-_remote_repo= _remote_store= _remote_head= _remote_name=
-
-case "$1" in
-*:* | /* | ../* | ./* )
- _remote_repo="$1"
- ;;
-* )
- # otherwise, it is a short hand.
- case "$1" in
- */*)
- # a short-hand followed by a trailing path
- _token=$(expr "$1" : '\([^/]*\)/')
- _rest=$(expr "$1" : '[^/]*\(/.*\)$')
- ;;
- *)
- _token="$1"
- _rest=
- _remote_store="refs/heads/$_token"
- ;;
- esac
- test -f "$GIT_DIR/branches/$_token" ||
- die "No such remote branch: $_token"
-
- _remote_repo=$(cat "$GIT_DIR/branches/$_token")"$_rest"
- ;;
-esac
-
-case "$_remote_repo" in
-*"#"*)
- _remote_head=`expr "$_remote_repo" : '.*#\(.*\)$'`
- _remote_repo=`expr "$_remote_repo" : '\(.*\)#'`
- ;;
-esac
-
-_remote_name=$(echo "$_remote_repo" | sed 's|\.git/*$||')
-
-case "$2" in
-tag)
- _remote_name="tag '$3' of $_remote_name"
- _remote_head="refs/tags/$3"
- _remote_store="$_remote_head"
- ;;
-?*)
- # command line specified a head explicitly; do not
- # store the fetched head as a branch head.
- _remote_name="head '$2' of $_remote_name"
- _remote_head="refs/heads/$2"
- _remote_store=''
- ;;
-'')
- case "$_remote_head" in
- '')
- _remote_head=HEAD ;;
- *)
- _remote_name="head '$_remote_head' of $_remote_name"
- _remote_head="refs/heads/$_remote_head"
- ;;
- esac
- ;;
-esac
--- /dev/null
+#!/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 "$remote" in
+ '') remote=HEAD ;;
+ *) remote="refs/heads/$remote" ;;
+ esac
+ case "$local" in
+ '') local= ;;
+ *) local="refs/heads/$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 "$ref"
+ done
+ ;;
+ esac
+}
#!/bin/sh
#
-. git-sh-setup-script || die "Not a git archive"
-. git-parse-remote "$@"
-merge_name="$_remote_name"
+# Copyright (c) 2005 Junio C Hamano
+#
+# Fetch one or more remote refs and merge it/them into the current HEAD.
+. git-sh-setup-script || die "Not a git archive"
git-fetch-script "$@" || exit 1
+merge_head=$(sed -e 's/ .*//' "$GIT_DIR"/FETCH_HEAD | tr '\012' ' ')
+merge_name=$(sed -e 's/^[0-9a-f]* //' "$GIT_DIR"/FETCH_HEAD |
+ tr '\012' ' ')
+
+case "$merge_head" in
+'')
+ echo >&2 "No changes."
+ exit 0
+ ;;
+*' '?*)
+ echo >&2 "Pulling more than one heads; making an Octopus."
+ exec git-octopus-script
+ ;;
+esac
git-resolve-script \
"$(cat "$GIT_DIR"/HEAD)" \
- "$(cat "$GIT_DIR"/FETCH_HEAD)" \
- "Merge $merge_name"
+ $merge_head "Merge $merge_name"
-*)
die "Unknown parameter $1" ;;
*)
- remote="$1"
- shift
set x "$@"
shift
break ;;
shift
done
-case "$remote" in
-*:* | /* | ../* | ./* )
- # An URL, host:/path/to/git, absolute and relative paths.
- ;;
-* )
- # Shorthand
- if expr "$remote" : '..*/..*' >/dev/null
- then
- # a short-hand followed by a trailing path
- shorthand=$(expr "$remote" : '\([^/]*\)')
- remainder=$(expr "$remote" : '[^/]*\(/.*\)$')
- else
- shorthand="$remote"
- remainder=
- fi
- remote=$(sed -e 's/#.*//' "$GIT_DIR/branches/$remote") &&
- expr "$remote" : '..*:' >/dev/null &&
- remote="$remote$remainder" ||
- die "Cannot parse remote $remote"
- ;;
+. git-parse-remote-script
+remote=$(get_remote_url "$@")
+case "$has_all" in
+--all) set x ;;
+'') set x $(get_remote_refs_for_push "$@") ;;
esac
+shift
case "$remote" in
http://* | https://* | git://* | rsync://* )
#!/bin/sh
+#
+# Copyright (c) 2005 Linus Torvalds
+#
+
. git-sh-setup-script || die "Not a git archive"
+no_update_info=
+while case "$#" in 0) break ;; esac
+do
+ case "$1" in
+ -n) no_update_info=t ;;
+ *) break ;;
+ esac
+ shift
+done
+
rm -f .tmp-pack-*
packname=$(git-rev-list --unpacked --objects $(git-rev-parse --all) |
git-pack-objects --non-empty --incremental .tmp-pack) ||
echo Nothing new to pack
exit 0
fi
+
mkdir -p "$GIT_OBJECT_DIRECTORY/pack" &&
mv .tmp-pack-$packname.pack "$GIT_OBJECT_DIRECTORY/pack/pack-$packname.pack" &&
-mv .tmp-pack-$packname.idx "$GIT_OBJECT_DIRECTORY/pack/pack-$packname.idx"
+mv .tmp-pack-$packname.idx "$GIT_OBJECT_DIRECTORY/pack/pack-$packname.idx" &&
+case "$no_update_info" in
+t) : ;;
+*) git-update-server-info ;;
+esac
[ "$revision" ] || usage
[ "$url" ] || usage
-baserev=`git-rev-parse --verify $revision^0` &&
-headrev=`git-rev-parse --verify $head^0` || exit
+baserev=`git-rev-parse --verify "$revision"^0` &&
+headrev=`git-rev-parse --verify "$head"^0` || exit
echo "The following changes since commit $baserev:"
git log --max-count=1 --pretty=short "$baserev" |
die "Your working tree is dirty; cannot revert a previous patch." ;;
esac
-rev=$(git-rev-parse --no-flags --verify --revs-only "$@") &&
+rev=$(git-rev-parse --verify "$@") &&
commit=$(git-rev-parse --verify "$rev^0") || exit
if git-diff-tree -R -M -p $commit | git-apply --index &&
msg=$(git-rev-list --pretty=oneline --max-count=1 $commit)
static int verbose_header = 0;
static int show_parents = 0;
static int hdr_termination = 0;
-static const char *prefix = "";
+static const char *commit_prefix = "";
static unsigned long max_age = -1;
static unsigned long min_age = -1;
static int max_count = -1;
{
commit->object.flags |= SHOWN;
if (show_breaks) {
- prefix = "| ";
+ commit_prefix = "| ";
if (commit->object.flags & DISCONTINUITY) {
- prefix = "^ ";
+ commit_prefix = "^ ";
} else if (commit->object.flags & BOUNDARY) {
- prefix = "= ";
+ commit_prefix = "= ";
}
}
- printf("%s%s", prefix, sha1_to_hex(commit->object.sha1));
+ printf("%s%s", commit_prefix, sha1_to_hex(commit->object.sha1));
if (show_parents) {
struct commit_list *parents = commit->parents;
while (parents) {
int main(int argc, char **argv)
{
struct commit_list *list = NULL;
- const char *prefix = setup_git_directory();
int i, limited = 0;
+ setup_git_directory();
for (i = 1 ; i < argc; i++) {
int flags;
char *arg = argv[i];
verbose_header = 1;
hdr_termination = '\n';
if (commit_format == CMIT_FMT_ONELINE)
- prefix = "";
+ commit_prefix = "";
else
- prefix = "commit ";
+ commit_prefix = "commit ";
continue;
}
if (!strncmp(arg, "--no-merges", 11)) {
#include "commit.h"
#include "refs.h"
+#define DO_REVS 1
+#define DO_NOREV 2
+#define DO_FLAGS 4
+#define DO_NONFLAGS 8
+static int filter = ~0;
+
static char *def = NULL;
-static int no_revs = 0;
-static int single_rev = 0;
-static int revs_only = 0;
-static int do_rev_argument = 1;
-static int output_revs = 0;
-static int flags_only = 0;
-static int no_flags = 0;
-static int output_sq = 0;
-static int symbolic = 0;
#define NORMAL 0
#define REVERSED 1
static int show_type = NORMAL;
+static int symbolic = 0;
+static int output_sq = 0;
+
+static int revs_count = 0;
/*
* Some arguments are relevant "revision" arguments,
static int is_rev_argument(const char *arg)
{
static const char *rev_args[] = {
- "--max-count=",
+ "--bisect",
+ "--header",
"--max-age=",
- "--min-age=",
+ "--max-count=",
"--merge-order",
- "--topo-order",
- "--bisect",
+ "--min-age=",
"--no-merges",
+ "--objects",
+ "--parents",
+ "--pretty",
+ "--show-breaks",
+ "--topo-order",
+ "--unpacked",
NULL
};
const char **p = rev_args;
if (!str)
return 0;
len = strlen(str);
- if (!strncmp(arg, str, len))
+ if (!strcmp(arg, str) ||
+ (str[len-1] == '=' && !strncmp(arg, str, len)))
return 1;
}
}
+/* Output argument as a string, either SQ or normal */
static void show(const char *arg)
{
if (output_sq) {
puts(arg);
}
+/* Output a revision, only if filter allows it */
static void show_rev(int type, const unsigned char *sha1, const char *name)
{
- if (no_revs)
+ if (!(filter & DO_REVS))
return;
- output_revs++;
+ def = NULL;
+ revs_count++;
if (type != show_type)
putchar('^');
show(sha1_to_hex(sha1));
}
-static void show_rev_arg(char *rev)
+/* Output a flag, only if filter allows it. */
+static void show_flag(char *arg)
{
- if (no_revs)
+ if (!(filter & DO_FLAGS))
return;
- show(rev);
-}
-
-static void show_norev(char *norev)
-{
- if (flags_only)
- return;
- if (revs_only)
- return;
- show(norev);
-}
-
-static void show_arg(char *arg)
-{
- if (no_flags)
- return;
- if (do_rev_argument && is_rev_argument(arg))
- show_rev_arg(arg);
- else
+ if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV))
show(arg);
}
show_rev(NORMAL, sha1, s);
return;
}
- show_norev(s);
}
}
int main(int argc, char **argv)
{
- int i, as_is = 0;
+ int i, as_is = 0, verify = 0;
unsigned char sha1[20];
const char *prefix = setup_git_directory();
char *dotdot;
if (as_is) {
- show_norev(arg);
+ show(arg);
continue;
}
if (*arg == '-') {
if (!strcmp(arg, "--")) {
- show_default();
- if (revs_only || flags_only)
- break;
as_is = 1;
+ continue;
}
if (!strcmp(arg, "--default")) {
def = argv[i+1];
continue;
}
if (!strcmp(arg, "--revs-only")) {
- revs_only = 1;
+ filter &= ~DO_NOREV;
continue;
}
if (!strcmp(arg, "--no-revs")) {
- no_revs = 1;
+ filter &= ~DO_REVS;
continue;
}
if (!strcmp(arg, "--flags")) {
- flags_only = 1;
+ filter &= ~DO_NONFLAGS;
continue;
}
if (!strcmp(arg, "--no-flags")) {
- no_flags = 1;
+ filter &= ~DO_FLAGS;
continue;
}
if (!strcmp(arg, "--verify")) {
- revs_only = 1;
- do_rev_argument = 0;
- single_rev = 1;
+ filter &= ~(DO_FLAGS|DO_NOREV);
+ verify = 1;
continue;
}
if (!strcmp(arg, "--sq")) {
continue;
}
if (!strcmp(arg, "--show-prefix")) {
- puts(prefix);
+ if (prefix)
+ puts(prefix);
continue;
}
- show_arg(arg);
+ if (verify)
+ die("Needed a single revision");
+ show_flag(arg);
continue;
}
+
+ /* Not a flag argument */
dotdot = strstr(arg, "..");
if (dotdot) {
unsigned char end[20];
if (!*n)
n = "HEAD";
if (!get_sha1(n, end)) {
- if (no_revs)
- continue;
- def = NULL;
show_rev(NORMAL, end, n);
show_rev(REVERSED, sha1, arg);
continue;
*dotdot = '.';
}
if (!get_sha1(arg, sha1)) {
- if (no_revs)
- continue;
- def = NULL;
show_rev(NORMAL, sha1, arg);
continue;
}
if (*arg == '^' && !get_sha1(arg+1, sha1)) {
- if (no_revs)
- continue;
- def = NULL;
show_rev(REVERSED, sha1, arg+1);
continue;
}
- show_default();
- show_norev(arg);
+ if (verify)
+ die("Needed a single revision");
+ if ((filter & (DO_NONFLAGS|DO_NOREV)) ==
+ (DO_NONFLAGS|DO_NOREV))
+ show(arg);
}
show_default();
- if (single_rev && output_revs != 1) {
- fprintf(stderr, "Needed a single revision\n");
- exit(1);
- }
+ if (verify && revs_count != 1)
+ die("Needed a single revision");
return 0;
}
/* This part determines what can overwrite what.
* The rules are:
*
- * (0) you can always use --force.
+ * (0) you can always use --force or +A:B notation to
+ * selectively force individual ref pairs.
*
* (1) if the old thing does not exist, it is OK.
*
* descendant of old, it is OK.
*/
- if (!force_update && !is_zero_sha1(ref->old_sha1)) {
+ if (!force_update &&
+ !is_zero_sha1(ref->old_sha1) &&
+ !ref->force) {
if (!has_sha1_file(ref->old_sha1)) {
error("remote '%s' object %s does not "
"exist on local",
ref->name, sha1_to_hex(ref->old_sha1));
continue;
}
+
/* We assume that local is fsck-clean. Otherwise
- * you _could_ have a old tag which points at
- * something you do not have which may or may not
+ * you _could_ have an old tag which points at
+ * something you do not have, which may or may not
* be a commit.
*/
if (!ref_newer(ref->peer_ref->new_sha1,
--- /dev/null
+: this is just to ensure the directory exists.