Commit Graph

13588 Commits

Author SHA1 Message Date
Junio C Hamano
c6e3ac0f69 Merge branch 'ab/untracked-cache-invalidation-docs'
Doc update to warn against remaining bugs in untracked cache.

* ab/untracked-cache-invalidation-docs:
  update-index doc: note the caveat with "could not open..."
  update-index doc: note a fixed bug in the untracked cache
2018-02-27 10:33:50 -08:00
Motoki Seki
1316416903 Documentation/gitsubmodules.txt: avoid non-ASCII apostrophes
In gitsubmodules.txt, a few non-ASCII apostrophes are used to spell
possessive, e.g. "submodule's".  These unfortunately are not
rendered at https://git-scm.com/docs/gitsubmodules correctly by the
renderer used there.

Use ASCII apostrophes instead to work around the problem.  It also
is good to be consistent, as there are possessives spelled with
ASCII apostrophes.

Signed-off-by: Motoki Seki <marmot.motoki@gmail.com>
Acked-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-22 13:03:15 -08:00
Martin Ågren
c0e9f5be87 config: change default of pager.config to "on"
This is similar to ff1e72483 (tag: change default of `pager.tag` to
"on", 2017-08-02) and is safe now that we do not consider `pager.config`
at all when we are not listing or getting configuration. This change
will help with listing large configurations, but will not hurt users of
`git config --edit` as it would have before the previous commit.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-21 14:27:30 -08:00
Martin Ågren
32888b8fd5 config: respect pager.config in list/get-mode only
Similar to de121ffe5 (tag: respect `pager.tag` in list-mode only,
2017-08-02), use the DELAY_PAGER_CONFIG-mechanism to only respect
`pager.config` when we are listing or "get"ing config.

We have several getters and some are guaranteed to give at most one line
of output. Paging all getters including those could be convenient from a
documentation point-of-view. The downside would be that a misconfigured
or not so modern pager might wait for user interaction before
terminating. Let's instead respect the config for precisely those
getters which may produce more than one line of output.

`--get-urlmatch` may or may not produce multiple lines of output,
depending on the exact usage. Let's not try to recognize the two modes,
but instead make `--get-urlmatch` always respect the config. Analyzing
the detailed usage might be trivial enough here, but could establish a
precedent that we will never be able to enforce throughout the codebase
and that will just open a can of worms.

This fixes the failing test added in the previous commit. Also adapt the
test for whether `git config foo.bar bar` and `git config --get foo.bar`
respects `pager.config`.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-21 14:27:29 -08:00
Junio C Hamano
e3a80781f5 Fourth batch for 2.17 2018-02-21 12:45:35 -08:00
Junio C Hamano
2f6128daab Merge branch 'gs/rebase-allow-empty-message'
"git rebase" learned to take "--allow-empty-message" option.

* gs/rebase-allow-empty-message:
  rebase: add --allow-empty-message option
2018-02-21 12:45:04 -08:00
Junio C Hamano
c2bd43d66d Merge branch 'lw/daemon-log-destination'
The log from "git daemon" can be redirected with a new option; one
relevant use case is to send the log to standard error (instead of
syslog) when running it from inetd.

* lw/daemon-log-destination:
  daemon: add --log-destination=(stderr|syslog|none)
2018-02-21 12:45:04 -08:00
Brandon Williams
d88e92d4e0 submodule: indicate that 'submodule.recurse' doesn't apply to clone
Update the documentation for the 'submodule.recurse' config to identify
that the clone command does not respect it.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-21 10:45:06 -08:00
Eric Sunshine
d023df1ee6 git-worktree.txt: fix indentation of example and text of 'add' command
When 4e85333197 (worktree: make add <path> <branch> dwim, 2017-11-26)
added an example command in a literal code block, it neglected to
insert a mandatory "+" line before the block. This omission resulted
in both the literal code block and the (existing) paragraph following
the block to be outdented, even though they should be indented under
the 'add' sub-command along with the rest of the text pertaining to
that command. Furthermore, the mandatory "+" line separating the code
block from the following text got rendered as a leading character on
the line ("+ If <commit-ish>...") rather than being treated as a
formatting directive.

Fix these problems by adding the missing "+" line before the example
code block.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-16 13:12:27 -08:00
Eric Sunshine
661a5a382e git-worktree.txt: fix missing ")" typo
Add the closing ")" to a parenthetical phrase introduced by 4e85333197
(worktree: make add <path> <branch> dwim, 2017-11-26).

While at it, add a missing ":" at the end of the same sentence since
it precedes an example literal command block.

Reported-by: Mike Nordell <tamlin.thefirst@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-16 13:11:40 -08:00
Junio C Hamano
adcc94a0aa merge: allow fast-forward when merging a tracked tag
Long time ago at fab47d05 ("merge: force edit and no-ff mode when
merging a tag object", 2011-11-07), "git merge" was made to always
create a merge commit when merging a tag, even when the side branch
being merged is a descendant of the current branch.

This default is good for merges made by upstream maintainers to
integrate work signed by downstream contributors, but will leave
pointless no-ff merges when downstream contributors pull a newer
release tag to make their long-running topic branches catch up with
the upstream.  When there is no local work left on the topic, such a
merge should simply fast-forward to the commit pointed at by the
release tag.

Update the default (again) for "git merge" that merges a tag object
to (1) --no-ff (i.e. create a merge commit even when side branch
fast forwards) if the tag being merged is not at its expected place
in refs/tags/ hierarchy and (2) --ff (i.e. allow fast-forward update
when able) otherwise.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-16 11:22:43 -08:00
Junio C Hamano
a4ee44448f Sync with 2.16.2
* tag 'v2.16.2':
  Git 2.16.2
2018-02-15 15:24:55 -08:00
Junio C Hamano
ffa9524972 Git 2.16.2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-15 15:21:23 -08:00
Junio C Hamano
c93150cfb0 Merge branch 'ab/doc-cat-file-e-still-shows-errors' into maint
Doc update.

* ab/doc-cat-file-e-still-shows-errors:
  cat-file doc: document that -e will return some output
2018-02-15 15:18:15 -08:00
Junio C Hamano
d4e528ef6a Merge branch 'as/read-tree-prefix-doc-fix' into maint
Doc update.

* as/read-tree-prefix-doc-fix:
  doc/read-tree: remove obsolete remark
2018-02-15 15:18:14 -08:00
Junio C Hamano
1f9c1fab64 Third batch for 2.17
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-15 14:56:49 -08:00
Junio C Hamano
0dbd562cc4 Merge branch 'nd/ignore-glob-doc-update'
Doc update.

* nd/ignore-glob-doc-update:
  gitignore.txt: elaborate shell glob syntax
2018-02-15 14:55:46 -08:00
Junio C Hamano
8be8342b4c Merge branch 'po/object-id'
Conversion from uchar[20] to struct object_id continues.

* po/object-id:
  sha1_file: rename hash_sha1_file_literally
  sha1_file: convert write_loose_object to object_id
  sha1_file: convert force_object_loose to object_id
  sha1_file: convert write_sha1_file to object_id
  notes: convert write_notes_tree to object_id
  notes: convert combine_notes_* to object_id
  commit: convert commit_tree* to object_id
  match-trees: convert splice_tree to object_id
  cache: clear whole hash buffer with oidclr
  sha1_file: convert hash_sha1_file to object_id
  dir: convert struct sha1_stat to use object_id
  sha1_file: convert pretend_sha1_file to object_id
2018-02-15 14:55:43 -08:00
Stefan Beller
e4e5da2796 Documentation/git-status: clarify status table for porcelain mode
It is possible to have the output ' A' from 'git status --porcelain'
by adding a file using the '--intend-to-add' flag.  Make this clear by
adding the pattern in the table of the documentation.

However the mode 'DM' (deleted in the index, modified in the working tree)
is not possible in the non-merge case in which the file only shows
as 'D ' (and adding it back to the worktree would show an additional line
of an '??' untracked file). It is also not possible in the merge case as
then the mode involves a 'U' on one side of the merge.
Remove that pattern.

Reported-by: Ross Light <light@google.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-15 11:07:52 -08:00
Robert P. J. Day
5aea9fe6cc Correct mispellings of ".gitmodule" to ".gitmodules"
There are a small number of misspellings, ".gitmodule", scattered
throughout the code base, correct them ... no apparent functional
changes.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-14 11:34:34 -08:00
Nguyễn Thái Ngọc Duy
65ed8ff376 am: support --quit
Among the "in progress" commands, only git-am and git-merge do not
support --quit. Support --quit in git-am too.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-14 11:26:43 -08:00
Ben Peart
4ccf461f56 fsmonitor: update documentation to remove reference to invalid config settings
Remove the reference to setting core.fsmonitor to `true` (or `false`) as those
are not valid settings.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-14 10:27:26 -08:00
Junio C Hamano
b2e45c695d Second batch for 2.17
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-13 16:22:16 -08:00
Junio C Hamano
8195303cc1 Merge branch 'tz/doc-show-defaults-to-head'
Doc update.

* tz/doc-show-defaults-to-head:
  doc: mention 'git show' defaults to HEAD
2018-02-13 13:39:17 -08:00
Junio C Hamano
417c04c5a9 Merge branch 'jt/long-running-process-doc'
Doc updates.

* jt/long-running-process-doc:
  Docs: split out long-running subprocess handshake
2018-02-13 13:39:15 -08:00
Junio C Hamano
5327463725 Merge branch 'jt/http-redact-cookies'
The http tracing code, often used to debug connection issues,
learned to redact potentially sensitive information from its output
so that it can be more safely sharable.

* jt/http-redact-cookies:
  http: support omitting data from traces
  http: support cookie redaction when tracing
2018-02-13 13:39:11 -08:00
Junio C Hamano
ab5a940deb Merge branch 'ks/submodule-doc-updates'
Doc updates.

* ks/submodule-doc-updates:
  Doc/git-submodule: improve readability and grammar of a sentence
  Doc/gitsubmodules: make some changes to improve readability and syntax
2018-02-13 13:39:07 -08:00
Junio C Hamano
6bed209a20 Merge branch 'jh/partial-clone'
The machinery to clone & fetch, which in turn involves packing and
unpacking objects, have been told how to omit certain objects using
the filtering mechanism introduced by the jh/object-filtering
topic, and also mark the resulting pack as a promisor pack to
tolerate missing objects, taking advantage of the mechanism
introduced by the jh/fsck-promisors topic.

* jh/partial-clone:
  t5616: test bulk prefetch after partial fetch
  fetch: inherit filter-spec from partial clone
  t5616: end-to-end tests for partial clone
  fetch-pack: restore save_commit_buffer after use
  unpack-trees: batch fetching of missing blobs
  clone: partial clone
  partial-clone: define partial clone settings in config
  fetch: support filters
  fetch: refactor calculation of remote list
  fetch-pack: test support excluding large blobs
  fetch-pack: add --no-filter
  fetch-pack, index-pack, transport: partial clone
  upload-pack: add object filtering for partial clone
2018-02-13 13:39:04 -08:00
Junio C Hamano
f3d618d2bf Merge branch 'jh/fsck-promisors'
In preparation for implementing narrow/partial clone, the machinery
for checking object connectivity used by gc and fsck has been
taught that a missing object is OK when it is referenced by a
packfile specially marked as coming from trusted repository that
promises to make them available on-demand and lazily.

* jh/fsck-promisors:
  gc: do not repack promisor packfiles
  rev-list: support termination at promisor objects
  sha1_file: support lazily fetching missing objects
  introduce fetch-object: fetch one promisor object
  index-pack: refactor writing of .keep files
  fsck: support promisor objects as CLI argument
  fsck: support referenced promisor objects
  fsck: support refs pointing to promisor objects
  fsck: introduce partialclone extension
  extension.partialclone: introduce partial clone extension
2018-02-13 13:39:03 -08:00
brian m. carlson
760f1ad101 docs/interpret-trailers: fix agreement error
In the description of git interpret-trailers, we describe "a group…of
lines" that have certain characteristics.  Ensure both options
describing this group use a singular verb for parallelism.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-13 09:45:45 -08:00
Nguyễn Thái Ngọc Duy
fbd7a23237 rebase: introduce and use pseudo-ref REBASE_HEAD
The new command `git rebase --show-current-patch` is useful for seeing
the commit related to the current rebase state. Some however may find
the "git show" command behind it too limiting. You may want to
increase context lines, do a diff that ignores whitespaces...

For these advanced use cases, the user can execute any command they
want with the new pseudo ref REBASE_HEAD.

This also helps show where the stopped commit is from, which is hard
to see from the previous patch which implements --show-current-patch.

Helped-by: Tim Landscheidt <tim@tim-landscheidt.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-12 14:07:59 -08:00
Nguyễn Thái Ngọc Duy
66335298a4 rebase: add --show-current-patch
It is useful to see the full patch while resolving conflicts in a
rebase. The only way to do it now is

    less .git/rebase-*/patch

which could turn out to be a lot longer to type if you are in a
linked worktree, or not at top-dir. On top of that, an ordinary user
should not need to peek into .git directory. The new option is
provided to examine the patch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-12 14:07:59 -08:00
Nguyễn Thái Ngọc Duy
984913a210 am: add --show-current-patch
Pointing the user to $GIT_DIR/rebase-apply may encourage them to mess
around in there, which is not a good thing. With this, the user does
not have to keep the path around somewhere (because after a couple of
commands, the path may be out of scrollback buffer) when they need to
look at the patch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-12 14:07:59 -08:00
Nguyễn Thái Ngọc Duy
cc73385cf6 worktree remove: new command
This command allows to delete a worktree. Like 'move' you cannot
remove the main worktree, or one with submodules inside [1].

For deleting $GIT_WORK_TREE, Untracked files or any staged entries are
considered precious and therefore prevent removal by default. Ignored
files are not precious.

When it comes to deleting $GIT_DIR, there's no "clean" check because
there should not be any valuable data in there, except:

- HEAD reflog. There is nothing we can do about this until somebody
  steps up and implements the ref graveyard.

- Detached HEAD. Technically it can still be recovered. Although it
  may be nice to warn about orphan commits like 'git checkout' does.

[1] We do 'git status' with --ignore-submodules=all for safety
    anyway. But this needs a closer look by submodule people before we
    can allow deletion. For example, if a submodule is totally clean,
    but its repo not absorbed to the main .git dir, then deleting
    worktree also deletes the valuable .submodule repo too.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-12 13:13:35 -08:00
Nguyễn Thái Ngọc Duy
78d986b252 worktree move: refuse to move worktrees with submodules
Submodules contains .git files with relative paths. After a worktree
move, these files need to be updated or they may point to nowhere.

This is a bandage patch to make sure "worktree move" don't break
people's worktrees by accident. When .git file update code is in
place, this validate_no_submodules() could be removed.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-12 13:13:35 -08:00
Nguyễn Thái Ngọc Duy
9f792bb472 worktree move: new command
This command allows to relocate linked worktrees. Main worktree cannot
(yet) be moved.

There are two options to move the main worktree, but both have
complications, so it's not implemented yet. Anyway the options are:

- convert the main worktree to a linked one and move it away, leave
  the git repository where it is. The repo essentially becomes bare
  after this move.

- move the repository with the main worktree. The tricky part is make
  sure all file descriptors to the repository are closed, or it may
  fail on Windows.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-12 13:13:35 -08:00
Ævar Arnfjörð Bjarmason
7bf0be7501 update-index doc: note the caveat with "could not open..."
Note the caveat where 2.17 is stricter about index validation
potentially causing "could not open directory" warnings when git is
upgraded. See the preceding "dir.c: stop ignoring opendir() error in
open_cached_dir()" change.

This caused some mayhem when I upgraded git to a version with this
series at Booking.com, and other users have doubtless enabled the UC
extension and are in for a surprise when they upgrade. Let's give them
a headsup in the docs.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:54:27 -08:00
Ævar Arnfjörð Bjarmason
9b978691b1 update-index doc: note a fixed bug in the untracked cache
Document the bug tested for in my "status: add a failing test showing
a core.untrackedCache bug" and fixed in Duy's "dir.c: fix missing dir
invalidation in untracked code".

Since this is very likely something others will encounter in the
future on older versions, and it's not obvious how to fix it let's
document both that it exists, and how to "fix" it with a one-off
command.

As noted in that commit, even though this bug gets the untracked cache
into a bad state, we have not yet found a case where this is user
visible, and thus it makes sense for these docs to focus on the
symlink case only.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:54:23 -08:00
Ævar Arnfjörð Bjarmason
6317972cff fetch: make the --prune-tags work with <url>
Make the new --prune-tags option work properly when git-fetch is
invoked with a <url> parameter instead of a <remote name>
parameter.

This change is split off from the introduction of --prune-tags due to
the relative complexity of munging the incoming argv, which is easier
to review as a separate change.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:13 -08:00
Ævar Arnfjörð Bjarmason
97716d217c fetch: add a --prune-tags option and fetch.pruneTags config
Add a --prune-tags option to git-fetch, along with fetch.pruneTags
config option and a -P shorthand (-p is --prune). This allows for
doing any of:

    git fetch -p -P
    git fetch --prune --prune-tags
    git fetch -p -P origin
    git fetch --prune --prune-tags origin

Or simply:

    git config fetch.prune true &&
    git config fetch.pruneTags true &&
    git fetch

Instead of the much more verbose:

    git fetch --prune origin 'refs/tags/*:refs/tags/*' '+refs/heads/*:refs/remotes/origin/*'

Before this feature it was painful to support the use-case of pulling
from a repo which is having both its branches *and* tags deleted
regularly, and have our local references to reflect upstream.

At work we create deployment tags in the repo for each rollout, and
there's *lots* of those, so they're archived within weeks for
performance reasons.

Without this change it's hard to centrally configure such repos in
/etc/gitconfig (on servers that are only used for working with
them). You need to set fetch.prune=true globally, and then for each
repo:

    git -C {} config --replace-all remote.origin.fetch "refs/tags/*:refs/tags/*" "^\+*refs/tags/\*:refs/tags/\*$"

Now I can simply set fetch.pruneTags=true in /etc/gitconfig as well,
and users running "git pull" will automatically get the pruning
semantics I want.

Even though "git remote" has corresponding "prune" and "update
--prune" subcommands I'm intentionally not adding a corresponding
prune-tags or "update --prune --prune-tags" mode to that command.

It's advertised (as noted in my recent "git remote doc: correct
dangerous lies about what prune does") as only modifying remote
tracking references, whereas any --prune-tags option is always going
to modify what from the user's perspective is a local copy of the tag,
since there's no such thing as a remote tracking tag.

Ideally add_prune_tags_to_fetch_refspec() would be something that
would use ALLOC_GROW() to grow the 'fetch` member of the 'remote'
struct. Instead I'm realloc-ing remote->fetch and adding the
tag_refspec to the end.

The reason is that parse_{fetch,push}_refspec which allocate the
refspec (ultimately remote->fetch) struct are called many places that
don't have access to a 'remote' struct. It would be hard to change all
their callsites to be amenable to carry around the bookkeeping
variables required for dynamic allocation.

All the other callers of the API first incrementally construct the
string version of the refspec in remote->fetch_refspec via
add_fetch_refspec(), before finally calling parse_fetch_refspec() via
some variation of remote_get().

It's less of a pain to deal with the one special case that needs to
modify already constructed refspecs than to chase down and change all
the other callsites. The API I'm adding is intentionally not
generalized because if we add more of these we'd probably want to
re-visit how this is done.

See my "Re: [BUG] git remote prune removes local tags, depending on
fetch config" (87po6ahx87.fsf@evledraar.gmail.com;
https://public-inbox.org/git/87po6ahx87.fsf@evledraar.gmail.com/) for
more background info.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:13 -08:00
Ævar Arnfjörð Bjarmason
627a129b46 git-fetch & config doc: link to the new PRUNING section
Amend the documentation for fetch.prune, fetch.<name>.prune and
--prune to link to the recently added PRUNING section.

I'd have liked to link directly to it with "<<PRUNING>>" from
fetch-options.txt, since it's included in git-fetch.txt (git-pull.txt
also includes it, but doesn't include that option). However making a
reference across files yields this error:

    [...]/Documentation/git-fetch.xml:226: element xref: validity
    error : IDREF attribute linkend references an unknown ID "PRUNING"

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:12 -08:00
Ævar Arnfjörð Bjarmason
d0e07472fa git remote doc: correct dangerous lies about what prune does
The "git remote prune <name>" command uses the same machinery as "git
fetch <name> --prune", and shares all the same caveats, but its
documentation has suggested that it'll just "delete stale
remote-tracking branches under <name>".

This isn't true, and hasn't been true since at least v1.8.5.6 (the
oldest version I could be bothered to test).

E.g. if "refs/tags/*:refs/tags/*" is explicitly set in the refspec of
the remote, it'll delete all local tags <name> doesn't know about.

Instead, briefly give the reader just enough of a hint that this
option might constitute a shotgun aimed at their foot, and point them
to the new PRUNING section in the git-fetch documentation which
explains all the nuances of what this facility does.

See "[BUG] git remote prune removes local tags, depending on fetch
config" (CACi5S_39wNrbfjLfn0xhCY+uewtFN2YmnAcRc86z6pjUTjWPHQ@mail.gmail.com)
by Michael Giuffrida for the initial report.

Reported-by: Michael Giuffrida <michaelpg@chromium.org>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:12 -08:00
Ævar Arnfjörð Bjarmason
2c72ed740f git fetch doc: add a new section to explain the ins & outs of pruning
Add a new section to canonically explain how remote reference pruning
works, and how users should be careful about using it in conjunction
with tag refspecs in particular.

A subsequent commit will update the git-remote documentation to refer
to this section, and details the motivation for writing this in the
first place.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:12 -08:00
Jeff King
89a9f2c862 CodingGuidelines: mention "static" and "extern"
It perhaps goes without saying that file-local stuff should
be marked static, but it does not hurt to remind people.

Less obvious is that we are settling on "do not include
extern in function declarations". It is already the default
unless the function was previously declared static (but if
you are following a static declaration with an unmarked one,
you should think about why you are declaring the thing
twice). And so it just becomes an extra noise-word in our
header files.

We used to give the opposite advice, so there are quite a
few "extern" markers in early Git code. But this at least
makes a concrete suggestion that we can follow going
forward.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-08 14:20:43 -08:00
Nicolas Morey-Chaisemartin
9eed6e40c0 tag: add --edit option
Add a --edit option whichs allows modifying the messages provided by -m or -F,
the same way git commit --edit does.

Signed-off-by: Nicolas Morey-Chaisemartin <NMoreyChaisemartin@suse.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-07 12:46:48 -08:00
Genki Sky
a6c612b528 rebase: add --allow-empty-message option
This option allows commits with empty commit messages to be rebased,
matching the same option in git-commit and git-cherry-pick. While empty
log messages are frowned upon, sometimes one finds them in older
repositories (e.g. translated from another VCS [0]), or have other
reasons for desiring them. The option is available in git-commit and
git-cherry-pick, so it is natural to make other git tools play nicely
with them. Adding this as an option allows the default to be "give the
user a chance to fix", while not interrupting the user's workflow
otherwise [1].

  [0]: https://stackoverflow.com/q/8542304
  [1]: https://public-inbox.org/git/7vd33afqjh.fsf@alter.siamese.dyndns.org/

To implement this, add a new --allow-empty-message flag. Then propagate
it to all calls of 'git commit', 'git cherry-pick', and 'git rebase--helper'
within the rebase scripts.

Signed-off-by: Genki Sky <sky@genki.is>
Reviewed-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-07 11:26:46 -08:00
Lucas Werkmeister
0c591cacba daemon: add --log-destination=(stderr|syslog|none)
This new option can be used to override the implicit --syslog of
--inetd, or to disable all logging. (While --detach also implies
--syslog, --log-destination=stderr with --detach is useless since
--detach disassociates the process from the original stderr.) --syslog
is retained as an alias for --log-destination=syslog.

--log-destination always overrides implicit --syslog regardless of
option order. This is different than the “last one wins” logic that
applies to some implicit options elsewhere in Git, but should hopefully
be less confusing. (I also don’t know if *all* implicit options in Git
follow “last one wins”.)

The combination of --inetd with --log-destination=stderr is useful, for
instance, when running `git daemon` as an instanced systemd service
(with associated socket unit). In this case, log messages sent via
syslog are received by the journal daemon, but run the risk of being
processed at a time when the `git daemon` process has already exited
(especially if the process was very short-lived, e.g. due to client
error), so that the journal daemon can no longer read its cgroup and
attach the message to the correct systemd unit (see systemd/systemd#2913
[1]). Logging to stderr instead can solve this problem, because systemd
can connect stderr directly to the journal daemon, which then already
knows which unit is associated with this stream.

[1]: https://github.com/systemd/systemd/issues/2913

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Lucas Werkmeister <mail@lucaswerkmeister.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-05 10:30:44 -08:00
Duy Nguyen
2e22a85e5c gitignore.txt: elaborate shell glob syntax
`fnmatch(3)` is a great mention if the intended audience is
programmers. For normal users it's probably better to spell out what
a shell glob is.

This paragraph is updated to roughly tell (or remind) what the main
wildcards are supposed to do. All the details are still hidden away
behind the `fnmatch(3)` wall because bringing the whole specification
here may be too much.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-02 10:56:46 -08:00
Todd Zullinger
9f5258cbb8 doc: mention 'git show' defaults to HEAD
When 'git show' is called without any object it defaults to HEAD.  This
has been true since d4ed9793fd ("Simplify common default options setup
for built-in log family.", 2006-04-16).

The SYNOPSIS suggests that the object argument is required.  Clarify
that it is not required and note the default.

Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-30 13:12:18 -08:00
Patryk Obara
829e5c3b92 sha1_file: convert pretend_sha1_file to object_id
Convert the declaration and definition of pretend_sha1_file to use
struct object_id and adjust all usages of this function.  Rename it to
pretend_object_file.

Signed-off-by: Patryk Obara <patryk.obara@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-30 10:42:35 -08:00