made the pack completely portable and wrote relevent bat files to go with it
This commit is contained in:
709
gitportable/mingw64/share/doc/git-doc/git-push.adoc
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gitportable/mingw64/share/doc/git-doc/git-push.adoc
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git-push(1)
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===========
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NAME
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----
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git-push - Update remote refs along with associated objects
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||||
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||||
SYNOPSIS
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--------
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[verse]
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'git push' [--all | --branches | --mirror | --tags] [--follow-tags] [--atomic] [-n | --dry-run] [--receive-pack=<git-receive-pack>]
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[--repo=<repository>] [-f | --force] [-d | --delete] [--prune] [-q | --quiet] [-v | --verbose]
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[-u | --set-upstream] [-o <string> | --push-option=<string>]
|
||||
[--[no-]signed|--signed=(true|false|if-asked)]
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[--force-with-lease[=<refname>[:<expect>]] [--force-if-includes]]
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[--no-verify] [<repository> [<refspec>...]]
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|
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DESCRIPTION
|
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-----------
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Updates remote refs using local refs, while sending objects
|
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necessary to complete the given refs.
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You can make interesting things happen to a repository
|
||||
every time you push into it, by setting up 'hooks' there. See
|
||||
documentation for linkgit:git-receive-pack[1].
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|
||||
When the command line does not specify where to push with the
|
||||
`<repository>` argument, `branch.*.remote` configuration for the
|
||||
current branch is consulted to determine where to push. If the
|
||||
configuration is missing, it defaults to 'origin'.
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|
||||
When the command line does not specify what to push with `<refspec>...`
|
||||
arguments or `--all`, `--mirror`, `--tags` options, the command finds
|
||||
the default `<refspec>` by consulting `remote.*.push` configuration,
|
||||
and if it is not found, honors `push.default` configuration to decide
|
||||
what to push (See linkgit:git-config[1] for the meaning of `push.default`).
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||||
|
||||
When neither the command-line nor the configuration specifies what to
|
||||
push, the default behavior is used, which corresponds to the `simple`
|
||||
value for `push.default`: the current branch is pushed to the
|
||||
corresponding upstream branch, but as a safety measure, the push is
|
||||
aborted if the upstream branch does not have the same name as the
|
||||
local one.
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||||
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||||
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OPTIONS[[OPTIONS]]
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------------------
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<repository>::
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The "remote" repository that is the destination of a push
|
||||
operation. This parameter can be either a URL
|
||||
(see the section <<URLS,GIT URLS>> below) or the name
|
||||
of a remote (see the section <<REMOTES,REMOTES>> below).
|
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|
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<refspec>...::
|
||||
Specify what destination ref to update with what source object.
|
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The format of a <refspec> parameter is an optional plus
|
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`+`, followed by the source object <src>, followed
|
||||
by a colon `:`, followed by the destination ref <dst>.
|
||||
+
|
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The <src> is often the name of the branch you would want to push, but
|
||||
it can be any arbitrary "SHA-1 expression", such as `master~4` or
|
||||
`HEAD` (see linkgit:gitrevisions[7]).
|
||||
+
|
||||
The <dst> tells which ref on the remote side is updated with this
|
||||
push. Arbitrary expressions cannot be used here, an actual ref must
|
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be named.
|
||||
If `git push [<repository>]` without any `<refspec>` argument is set to
|
||||
update some ref at the destination with `<src>` with
|
||||
`remote.<repository>.push` configuration variable, `:<dst>` part can
|
||||
be omitted--such a push will update a ref that `<src>` normally updates
|
||||
without any `<refspec>` on the command line. Otherwise, missing
|
||||
`:<dst>` means to update the same ref as the `<src>`.
|
||||
+
|
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If <dst> doesn't start with `refs/` (e.g. `refs/heads/master`) we will
|
||||
try to infer where in `refs/*` on the destination <repository> it
|
||||
belongs based on the type of <src> being pushed and whether <dst>
|
||||
is ambiguous.
|
||||
+
|
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--
|
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* If <dst> unambiguously refers to a ref on the <repository> remote,
|
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then push to that ref.
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* If <src> resolves to a ref starting with refs/heads/ or refs/tags/,
|
||||
then prepend that to <dst>.
|
||||
|
||||
* Other ambiguity resolutions might be added in the future, but for
|
||||
now any other cases will error out with an error indicating what we
|
||||
tried, and depending on the `advice.pushUnqualifiedRefname`
|
||||
configuration (see linkgit:git-config[1]) suggest what refs/
|
||||
namespace you may have wanted to push to.
|
||||
|
||||
--
|
||||
+
|
||||
The object referenced by <src> is used to update the <dst> reference
|
||||
on the remote side. Whether this is allowed depends on where in
|
||||
`refs/*` the <dst> reference lives as described in detail below, in
|
||||
those sections "update" means any modifications except deletes, which
|
||||
as noted after the next few sections are treated differently.
|
||||
+
|
||||
The `refs/heads/*` namespace will only accept commit objects, and
|
||||
updates only if they can be fast-forwarded.
|
||||
+
|
||||
The `refs/tags/*` namespace will accept any kind of object (as
|
||||
commits, trees and blobs can be tagged), and any updates to them will
|
||||
be rejected.
|
||||
+
|
||||
It's possible to push any type of object to any namespace outside of
|
||||
`refs/{tags,heads}/*`. In the case of tags and commits, these will be
|
||||
treated as if they were the commits inside `refs/heads/*` for the
|
||||
purposes of whether the update is allowed.
|
||||
+
|
||||
I.e. a fast-forward of commits and tags outside `refs/{tags,heads}/*`
|
||||
is allowed, even in cases where what's being fast-forwarded is not a
|
||||
commit, but a tag object which happens to point to a new commit which
|
||||
is a fast-forward of the commit the last tag (or commit) it's
|
||||
replacing. Replacing a tag with an entirely different tag is also
|
||||
allowed, if it points to the same commit, as well as pushing a peeled
|
||||
tag, i.e. pushing the commit that existing tag object points to, or a
|
||||
new tag object which an existing commit points to.
|
||||
+
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||||
Tree and blob objects outside of `refs/{tags,heads}/*` will be treated
|
||||
the same way as if they were inside `refs/tags/*`, any update of them
|
||||
will be rejected.
|
||||
+
|
||||
All of the rules described above about what's not allowed as an update
|
||||
can be overridden by adding an the optional leading `+` to a refspec
|
||||
(or using `--force` command line option). The only exception to this
|
||||
is that no amount of forcing will make the `refs/heads/*` namespace
|
||||
accept a non-commit object. Hooks and configuration can also override
|
||||
or amend these rules, see e.g. `receive.denyNonFastForwards` in
|
||||
linkgit:git-config[1] and `pre-receive` and `update` in
|
||||
linkgit:githooks[5].
|
||||
+
|
||||
Pushing an empty <src> allows you to delete the <dst> ref from the
|
||||
remote repository. Deletions are always accepted without a leading `+`
|
||||
in the refspec (or `--force`), except when forbidden by configuration
|
||||
or hooks. See `receive.denyDeletes` in linkgit:git-config[1] and
|
||||
`pre-receive` and `update` in linkgit:githooks[5].
|
||||
+
|
||||
The special refspec `:` (or `+:` to allow non-fast-forward updates)
|
||||
directs Git to push "matching" branches: for every branch that exists on
|
||||
the local side, the remote side is updated if a branch of the same name
|
||||
already exists on the remote side.
|
||||
+
|
||||
`tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`.
|
||||
|
||||
--all::
|
||||
--branches::
|
||||
Push all branches (i.e. refs under `refs/heads/`); cannot be
|
||||
used with other <refspec>.
|
||||
|
||||
--prune::
|
||||
Remove remote branches that don't have a local counterpart. For example
|
||||
a remote branch `tmp` will be removed if a local branch with the same
|
||||
name doesn't exist any more. This also respects refspecs, e.g.
|
||||
`git push --prune remote refs/heads/*:refs/tmp/*` would
|
||||
make sure that remote `refs/tmp/foo` will be removed if `refs/heads/foo`
|
||||
doesn't exist.
|
||||
|
||||
--mirror::
|
||||
Instead of naming each ref to push, specifies that all
|
||||
refs under `refs/` (which includes but is not
|
||||
limited to `refs/heads/`, `refs/remotes/`, and `refs/tags/`)
|
||||
be mirrored to the remote repository. Newly created local
|
||||
refs will be pushed to the remote end, locally updated refs
|
||||
will be force updated on the remote end, and deleted refs
|
||||
will be removed from the remote end. This is the default
|
||||
if the configuration option `remote.<remote>.mirror` is
|
||||
set.
|
||||
|
||||
-n::
|
||||
--dry-run::
|
||||
Do everything except actually send the updates.
|
||||
|
||||
--porcelain::
|
||||
Produce machine-readable output. The output status line for each ref
|
||||
will be tab-separated and sent to stdout instead of stderr. The full
|
||||
symbolic names of the refs will be given.
|
||||
|
||||
-d::
|
||||
--delete::
|
||||
All listed refs are deleted from the remote repository. This is
|
||||
the same as prefixing all refs with a colon.
|
||||
|
||||
--tags::
|
||||
All refs under `refs/tags` are pushed, in
|
||||
addition to refspecs explicitly listed on the command
|
||||
line.
|
||||
|
||||
--follow-tags::
|
||||
Push all the refs that would be pushed without this option,
|
||||
and also push annotated tags in `refs/tags` that are missing
|
||||
from the remote but are pointing at commit-ish that are
|
||||
reachable from the refs being pushed. This can also be specified
|
||||
with configuration variable `push.followTags`. For more
|
||||
information, see `push.followTags` in linkgit:git-config[1].
|
||||
|
||||
--[no-]signed::
|
||||
--signed=(true|false|if-asked)::
|
||||
GPG-sign the push request to update refs on the receiving
|
||||
side, to allow it to be checked by the hooks and/or be
|
||||
logged. If `false` or `--no-signed`, no signing will be
|
||||
attempted. If `true` or `--signed`, the push will fail if the
|
||||
server does not support signed pushes. If set to `if-asked`,
|
||||
sign if and only if the server supports signed pushes. The push
|
||||
will also fail if the actual call to `gpg --sign` fails. See
|
||||
linkgit:git-receive-pack[1] for the details on the receiving end.
|
||||
|
||||
--[no-]atomic::
|
||||
Use an atomic transaction on the remote side if available.
|
||||
Either all refs are updated, or on error, no refs are updated.
|
||||
If the server does not support atomic pushes the push will fail.
|
||||
|
||||
-o <option>::
|
||||
--push-option=<option>::
|
||||
Transmit the given string to the server, which passes them to
|
||||
the pre-receive as well as the post-receive hook. The given string
|
||||
must not contain a NUL or LF character.
|
||||
When multiple `--push-option=<option>` are given, they are
|
||||
all sent to the other side in the order listed on the
|
||||
command line.
|
||||
When no `--push-option=<option>` is given from the command
|
||||
line, the values of configuration variable `push.pushOption`
|
||||
are used instead.
|
||||
|
||||
--receive-pack=<git-receive-pack>::
|
||||
--exec=<git-receive-pack>::
|
||||
Path to the 'git-receive-pack' program on the remote
|
||||
end. Sometimes useful when pushing to a remote
|
||||
repository over ssh, and you do not have the program in
|
||||
a directory on the default $PATH.
|
||||
|
||||
--[no-]force-with-lease::
|
||||
--force-with-lease=<refname>::
|
||||
--force-with-lease=<refname>:<expect>::
|
||||
Usually, "git push" refuses to update a remote ref that is
|
||||
not an ancestor of the local ref used to overwrite it.
|
||||
+
|
||||
This option overrides this restriction if the current value of the
|
||||
remote ref is the expected value. "git push" fails otherwise.
|
||||
+
|
||||
Imagine that you have to rebase what you have already published.
|
||||
You will have to bypass the "must fast-forward" rule in order to
|
||||
replace the history you originally published with the rebased history.
|
||||
If somebody else built on top of your original history while you are
|
||||
rebasing, the tip of the branch at the remote may advance with their
|
||||
commit, and blindly pushing with `--force` will lose their work.
|
||||
+
|
||||
This option allows you to say that you expect the history you are
|
||||
updating is what you rebased and want to replace. If the remote ref
|
||||
still points at the commit you specified, you can be sure that no
|
||||
other people did anything to the ref. It is like taking a "lease" on
|
||||
the ref without explicitly locking it, and the remote ref is updated
|
||||
only if the "lease" is still valid.
|
||||
+
|
||||
`--force-with-lease` alone, without specifying the details, will protect
|
||||
all remote refs that are going to be updated by requiring their
|
||||
current value to be the same as the remote-tracking branch we have
|
||||
for them.
|
||||
+
|
||||
`--force-with-lease=<refname>`, without specifying the expected value, will
|
||||
protect the named ref (alone), if it is going to be updated, by
|
||||
requiring its current value to be the same as the remote-tracking
|
||||
branch we have for it.
|
||||
+
|
||||
`--force-with-lease=<refname>:<expect>` will protect the named ref (alone),
|
||||
if it is going to be updated, by requiring its current value to be
|
||||
the same as the specified value `<expect>` (which is allowed to be
|
||||
different from the remote-tracking branch we have for the refname,
|
||||
or we do not even have to have such a remote-tracking branch when
|
||||
this form is used). If `<expect>` is the empty string, then the named ref
|
||||
must not already exist.
|
||||
+
|
||||
Note that all forms other than `--force-with-lease=<refname>:<expect>`
|
||||
that specifies the expected current value of the ref explicitly are
|
||||
still experimental and their semantics may change as we gain experience
|
||||
with this feature.
|
||||
+
|
||||
"--no-force-with-lease" will cancel all the previous --force-with-lease on the
|
||||
command line.
|
||||
+
|
||||
A general note on safety: supplying this option without an expected
|
||||
value, i.e. as `--force-with-lease` or `--force-with-lease=<refname>`
|
||||
interacts very badly with anything that implicitly runs `git fetch` on
|
||||
the remote to be pushed to in the background, e.g. `git fetch origin`
|
||||
on your repository in a cronjob.
|
||||
+
|
||||
The protection it offers over `--force` is ensuring that subsequent
|
||||
changes your work wasn't based on aren't clobbered, but this is
|
||||
trivially defeated if some background process is updating refs in the
|
||||
background. We don't have anything except the remote tracking info to
|
||||
go by as a heuristic for refs you're expected to have seen & are
|
||||
willing to clobber.
|
||||
+
|
||||
If your editor or some other system is running `git fetch` in the
|
||||
background for you a way to mitigate this is to simply set up another
|
||||
remote:
|
||||
+
|
||||
git remote add origin-push $(git config remote.origin.url)
|
||||
git fetch origin-push
|
||||
+
|
||||
Now when the background process runs `git fetch origin` the references
|
||||
on `origin-push` won't be updated, and thus commands like:
|
||||
+
|
||||
git push --force-with-lease origin-push
|
||||
+
|
||||
Will fail unless you manually run `git fetch origin-push`. This method
|
||||
is of course entirely defeated by something that runs `git fetch
|
||||
--all`, in that case you'd need to either disable it or do something
|
||||
more tedious like:
|
||||
+
|
||||
git fetch # update 'master' from remote
|
||||
git tag base master # mark our base point
|
||||
git rebase -i master # rewrite some commits
|
||||
git push --force-with-lease=master:base master:master
|
||||
+
|
||||
I.e. create a `base` tag for versions of the upstream code that you've
|
||||
seen and are willing to overwrite, then rewrite history, and finally
|
||||
force push changes to `master` if the remote version is still at
|
||||
`base`, regardless of what your local `remotes/origin/master` has been
|
||||
updated to in the background.
|
||||
+
|
||||
Alternatively, specifying `--force-if-includes` as an ancillary option
|
||||
along with `--force-with-lease[=<refname>]` (i.e., without saying what
|
||||
exact commit the ref on the remote side must be pointing at, or which
|
||||
refs on the remote side are being protected) at the time of "push" will
|
||||
verify if updates from the remote-tracking refs that may have been
|
||||
implicitly updated in the background are integrated locally before
|
||||
allowing a forced update.
|
||||
|
||||
-f::
|
||||
--force::
|
||||
Usually, the command refuses to update a remote ref that is
|
||||
not an ancestor of the local ref used to overwrite it.
|
||||
Also, when `--force-with-lease` option is used, the command refuses
|
||||
to update a remote ref whose current value does not match
|
||||
what is expected.
|
||||
+
|
||||
This flag disables these checks, and can cause the remote repository
|
||||
to lose commits; use it with care.
|
||||
+
|
||||
Note that `--force` applies to all the refs that are pushed, hence
|
||||
using it with `push.default` set to `matching` or with multiple push
|
||||
destinations configured with `remote.*.push` may overwrite refs
|
||||
other than the current branch (including local refs that are
|
||||
strictly behind their remote counterpart). To force a push to only
|
||||
one branch, use a `+` in front of the refspec to push (e.g `git push
|
||||
origin +master` to force a push to the `master` branch). See the
|
||||
`<refspec>...` section above for details.
|
||||
|
||||
--[no-]force-if-includes::
|
||||
Force an update only if the tip of the remote-tracking ref
|
||||
has been integrated locally.
|
||||
+
|
||||
This option enables a check that verifies if the tip of the
|
||||
remote-tracking ref is reachable from one of the "reflog" entries of
|
||||
the local branch based in it for a rewrite. The check ensures that any
|
||||
updates from the remote have been incorporated locally by rejecting the
|
||||
forced update if that is not the case.
|
||||
+
|
||||
If the option is passed without specifying `--force-with-lease`, or
|
||||
specified along with `--force-with-lease=<refname>:<expect>`, it is
|
||||
a "no-op".
|
||||
+
|
||||
Specifying `--no-force-if-includes` disables this behavior.
|
||||
|
||||
--repo=<repository>::
|
||||
This option is equivalent to the <repository> argument. If both
|
||||
are specified, the command-line argument takes precedence.
|
||||
|
||||
-u::
|
||||
--set-upstream::
|
||||
For every branch that is up to date or successfully pushed, add
|
||||
upstream (tracking) reference, used by argument-less
|
||||
linkgit:git-pull[1] and other commands. For more information,
|
||||
see `branch.<name>.merge` in linkgit:git-config[1].
|
||||
|
||||
--[no-]thin::
|
||||
These options are passed to linkgit:git-send-pack[1]. A thin transfer
|
||||
significantly reduces the amount of sent data when the sender and
|
||||
receiver share many of the same objects in common. The default is
|
||||
`--thin`.
|
||||
|
||||
-q::
|
||||
--quiet::
|
||||
Suppress all output, including the listing of updated refs,
|
||||
unless an error occurs. Progress is not reported to the standard
|
||||
error stream.
|
||||
|
||||
-v::
|
||||
--verbose::
|
||||
Run verbosely.
|
||||
|
||||
--progress::
|
||||
Progress status is reported on the standard error stream
|
||||
by default when it is attached to a terminal, unless -q
|
||||
is specified. This flag forces progress status even if the
|
||||
standard error stream is not directed to a terminal.
|
||||
|
||||
--no-recurse-submodules::
|
||||
--recurse-submodules=check|on-demand|only|no::
|
||||
May be used to make sure all submodule commits used by the
|
||||
revisions to be pushed are available on a remote-tracking branch.
|
||||
If 'check' is used Git will verify that all submodule commits that
|
||||
changed in the revisions to be pushed are available on at least one
|
||||
remote of the submodule. If any commits are missing the push will
|
||||
be aborted and exit with non-zero status. If 'on-demand' is used
|
||||
all submodules that changed in the revisions to be pushed will be
|
||||
pushed. If on-demand was not able to push all necessary revisions it will
|
||||
also be aborted and exit with non-zero status. If 'only' is used all
|
||||
submodules will be pushed while the superproject is left
|
||||
unpushed. A value of 'no' or using `--no-recurse-submodules` can be used
|
||||
to override the push.recurseSubmodules configuration variable when no
|
||||
submodule recursion is required.
|
||||
+
|
||||
When using 'on-demand' or 'only', if a submodule has a
|
||||
"push.recurseSubmodules={on-demand,only}" or "submodule.recurse" configuration,
|
||||
further recursion will occur. In this case, "only" is treated as "on-demand".
|
||||
|
||||
--[no-]verify::
|
||||
Toggle the pre-push hook (see linkgit:githooks[5]). The
|
||||
default is --verify, giving the hook a chance to prevent the
|
||||
push. With --no-verify, the hook is bypassed completely.
|
||||
|
||||
-4::
|
||||
--ipv4::
|
||||
Use IPv4 addresses only, ignoring IPv6 addresses.
|
||||
|
||||
-6::
|
||||
--ipv6::
|
||||
Use IPv6 addresses only, ignoring IPv4 addresses.
|
||||
|
||||
include::urls-remotes.adoc[]
|
||||
|
||||
OUTPUT
|
||||
------
|
||||
|
||||
The output of "git push" depends on the transport method used; this
|
||||
section describes the output when pushing over the Git protocol (either
|
||||
locally or via ssh).
|
||||
|
||||
The status of the push is output in tabular form, with each line
|
||||
representing the status of a single ref. Each line is of the form:
|
||||
|
||||
-------------------------------
|
||||
<flag> <summary> <from> -> <to> (<reason>)
|
||||
-------------------------------
|
||||
|
||||
If --porcelain is used, then each line of the output is of the form:
|
||||
|
||||
-------------------------------
|
||||
<flag> \t <from>:<to> \t <summary> (<reason>)
|
||||
-------------------------------
|
||||
|
||||
The status of up-to-date refs is shown only if --porcelain or --verbose
|
||||
option is used.
|
||||
|
||||
flag::
|
||||
A single character indicating the status of the ref:
|
||||
(space);; for a successfully pushed fast-forward;
|
||||
`+`;; for a successful forced update;
|
||||
`-`;; for a successfully deleted ref;
|
||||
`*`;; for a successfully pushed new ref;
|
||||
`!`;; for a ref that was rejected or failed to push; and
|
||||
`=`;; for a ref that was up to date and did not need pushing.
|
||||
|
||||
summary::
|
||||
For a successfully pushed ref, the summary shows the old and new
|
||||
values of the ref in a form suitable for using as an argument to
|
||||
`git log` (this is `<old>..<new>` in most cases, and
|
||||
`<old>...<new>` for forced non-fast-forward updates).
|
||||
+
|
||||
For a failed update, more details are given:
|
||||
+
|
||||
--
|
||||
rejected::
|
||||
Git did not try to send the ref at all, typically because it
|
||||
is not a fast-forward and you did not force the update.
|
||||
|
||||
remote rejected::
|
||||
The remote end refused the update. Usually caused by a hook
|
||||
on the remote side, or because the remote repository has one
|
||||
of the following safety options in effect:
|
||||
`receive.denyCurrentBranch` (for pushes to the checked out
|
||||
branch), `receive.denyNonFastForwards` (for forced
|
||||
non-fast-forward updates), `receive.denyDeletes` or
|
||||
`receive.denyDeleteCurrent`. See linkgit:git-config[1].
|
||||
|
||||
remote failure::
|
||||
The remote end did not report the successful update of the ref,
|
||||
perhaps because of a temporary error on the remote side, a
|
||||
break in the network connection, or other transient error.
|
||||
--
|
||||
|
||||
from::
|
||||
The name of the local ref being pushed, minus its
|
||||
`refs/<type>/` prefix. In the case of deletion, the
|
||||
name of the local ref is omitted.
|
||||
|
||||
to::
|
||||
The name of the remote ref being updated, minus its
|
||||
`refs/<type>/` prefix.
|
||||
|
||||
reason::
|
||||
A human-readable explanation. In the case of successfully pushed
|
||||
refs, no explanation is needed. For a failed ref, the reason for
|
||||
failure is described.
|
||||
|
||||
NOTE ABOUT FAST-FORWARDS
|
||||
------------------------
|
||||
|
||||
When an update changes a branch (or more in general, a ref) that used to
|
||||
point at commit A to point at another commit B, it is called a
|
||||
fast-forward update if and only if B is a descendant of A.
|
||||
|
||||
In a fast-forward update from A to B, the set of commits that the original
|
||||
commit A built on top of is a subset of the commits the new commit B
|
||||
builds on top of. Hence, it does not lose any history.
|
||||
|
||||
In contrast, a non-fast-forward update will lose history. For example,
|
||||
suppose you and somebody else started at the same commit X, and you built
|
||||
a history leading to commit B while the other person built a history
|
||||
leading to commit A. The history looks like this:
|
||||
|
||||
----------------
|
||||
|
||||
B
|
||||
/
|
||||
---X---A
|
||||
|
||||
----------------
|
||||
|
||||
Further suppose that the other person already pushed changes leading to A
|
||||
back to the original repository from which you two obtained the original
|
||||
commit X.
|
||||
|
||||
The push done by the other person updated the branch that used to point at
|
||||
commit X to point at commit A. It is a fast-forward.
|
||||
|
||||
But if you try to push, you will attempt to update the branch (that
|
||||
now points at A) with commit B. This does _not_ fast-forward. If you did
|
||||
so, the changes introduced by commit A will be lost, because everybody
|
||||
will now start building on top of B.
|
||||
|
||||
The command by default does not allow an update that is not a fast-forward
|
||||
to prevent such loss of history.
|
||||
|
||||
If you do not want to lose your work (history from X to B) or the work by
|
||||
the other person (history from X to A), you would need to first fetch the
|
||||
history from the repository, create a history that contains changes done
|
||||
by both parties, and push the result back.
|
||||
|
||||
You can perform "git pull", resolve potential conflicts, and "git push"
|
||||
the result. A "git pull" will create a merge commit C between commits A
|
||||
and B.
|
||||
|
||||
----------------
|
||||
|
||||
B---C
|
||||
/ /
|
||||
---X---A
|
||||
|
||||
----------------
|
||||
|
||||
Updating A with the resulting merge commit will fast-forward and your
|
||||
push will be accepted.
|
||||
|
||||
Alternatively, you can rebase your change between X and B on top of A,
|
||||
with "git pull --rebase", and push the result back. The rebase will
|
||||
create a new commit D that builds the change between X and B on top of
|
||||
A.
|
||||
|
||||
----------------
|
||||
|
||||
B D
|
||||
/ /
|
||||
---X---A
|
||||
|
||||
----------------
|
||||
|
||||
Again, updating A with this commit will fast-forward and your push will be
|
||||
accepted.
|
||||
|
||||
There is another common situation where you may encounter non-fast-forward
|
||||
rejection when you try to push, and it is possible even when you are
|
||||
pushing into a repository nobody else pushes into. After you push commit
|
||||
A yourself (in the first picture in this section), replace it with "git
|
||||
commit --amend" to produce commit B, and you try to push it out, because
|
||||
forgot that you have pushed A out already. In such a case, and only if
|
||||
you are certain that nobody in the meantime fetched your earlier commit A
|
||||
(and started building on top of it), you can run "git push --force" to
|
||||
overwrite it. In other words, "git push --force" is a method reserved for
|
||||
a case where you do mean to lose history.
|
||||
|
||||
|
||||
EXAMPLES
|
||||
--------
|
||||
|
||||
`git push`::
|
||||
Works like `git push <remote>`, where <remote> is the
|
||||
current branch's remote (or `origin`, if no remote is
|
||||
configured for the current branch).
|
||||
|
||||
`git push origin`::
|
||||
Without additional configuration, pushes the current branch to
|
||||
the configured upstream (`branch.<name>.merge` configuration
|
||||
variable) if it has the same name as the current branch, and
|
||||
errors out without pushing otherwise.
|
||||
+
|
||||
The default behavior of this command when no <refspec> is given can be
|
||||
configured by setting the `push` option of the remote, or the `push.default`
|
||||
configuration variable.
|
||||
+
|
||||
For example, to default to pushing only the current branch to `origin`
|
||||
use `git config remote.origin.push HEAD`. Any valid <refspec> (like
|
||||
the ones in the examples below) can be configured as the default for
|
||||
`git push origin`.
|
||||
|
||||
`git push origin :`::
|
||||
Push "matching" branches to `origin`. See
|
||||
<refspec> in the <<OPTIONS,OPTIONS>> section above for a
|
||||
description of "matching" branches.
|
||||
|
||||
`git push origin master`::
|
||||
Find a ref that matches `master` in the source repository
|
||||
(most likely, it would find `refs/heads/master`), and update
|
||||
the same ref (e.g. `refs/heads/master`) in `origin` repository
|
||||
with it. If `master` did not exist remotely, it would be
|
||||
created.
|
||||
|
||||
`git push origin HEAD`::
|
||||
A handy way to push the current branch to the same name on the
|
||||
remote.
|
||||
|
||||
`git push mothership master:satellite/master dev:satellite/dev`::
|
||||
Use the source ref that matches `master` (e.g. `refs/heads/master`)
|
||||
to update the ref that matches `satellite/master` (most probably
|
||||
`refs/remotes/satellite/master`) in the `mothership` repository;
|
||||
do the same for `dev` and `satellite/dev`.
|
||||
+
|
||||
See the section describing `<refspec>...` above for a discussion of
|
||||
the matching semantics.
|
||||
+
|
||||
This is to emulate `git fetch` run on the `mothership` using `git
|
||||
push` that is run in the opposite direction in order to integrate
|
||||
the work done on `satellite`, and is often necessary when you can
|
||||
only make connection in one way (i.e. satellite can ssh into
|
||||
mothership but mothership cannot initiate connection to satellite
|
||||
because the latter is behind a firewall or does not run sshd).
|
||||
+
|
||||
After running this `git push` on the `satellite` machine, you would
|
||||
ssh into the `mothership` and run `git merge` there to complete the
|
||||
emulation of `git pull` that were run on `mothership` to pull changes
|
||||
made on `satellite`.
|
||||
|
||||
`git push origin HEAD:master`::
|
||||
Push the current branch to the remote ref matching `master` in the
|
||||
`origin` repository. This form is convenient to push the current
|
||||
branch without thinking about its local name.
|
||||
|
||||
`git push origin master:refs/heads/experimental`::
|
||||
Create the branch `experimental` in the `origin` repository
|
||||
by copying the current `master` branch. This form is only
|
||||
needed to create a new branch or tag in the remote repository when
|
||||
the local name and the remote name are different; otherwise,
|
||||
the ref name on its own will work.
|
||||
|
||||
`git push origin :experimental`::
|
||||
Find a ref that matches `experimental` in the `origin` repository
|
||||
(e.g. `refs/heads/experimental`), and delete it.
|
||||
|
||||
`git push origin +dev:master`::
|
||||
Update the origin repository's master branch with the dev branch,
|
||||
allowing non-fast-forward updates. *This can leave unreferenced
|
||||
commits dangling in the origin repository.* Consider the
|
||||
following situation, where a fast-forward is not possible:
|
||||
+
|
||||
----
|
||||
o---o---o---A---B origin/master
|
||||
\
|
||||
X---Y---Z dev
|
||||
----
|
||||
+
|
||||
The above command would change the origin repository to
|
||||
+
|
||||
----
|
||||
A---B (unnamed branch)
|
||||
/
|
||||
o---o---o---X---Y---Z master
|
||||
----
|
||||
+
|
||||
Commits A and B would no longer belong to a branch with a symbolic name,
|
||||
and so would be unreachable. As such, these commits would be removed by
|
||||
a `git gc` command on the origin repository.
|
||||
|
||||
include::transfer-data-leaks.adoc[]
|
||||
|
||||
CONFIGURATION
|
||||
-------------
|
||||
|
||||
include::includes/cmd-config-section-all.adoc[]
|
||||
|
||||
include::config/push.adoc[]
|
||||
|
||||
GIT
|
||||
---
|
||||
Part of the linkgit:git[1] suite
|
||||
Reference in New Issue
Block a user