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In c39952b92 (fetch: choose a sensible default with --jobs=0 again,
2023-02-20), the `--jobs=0` behavior was (re)introduced, but it went
undocumented. Since this is the same behavior as `git -c fetch.parallel=0
fetch`, which is documented, this change creates symmetry between the two
documentation sections.
Signed-off-by: Daniel D. Beck <daniel@ddbeck.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git format-patch" takes "--from=<user ident>" command line option
and uses the given ident for patch e-mails, but this is not applied
to the cover letter, the option is ignored and the committer ident
of the current user is used. This has been the case ever since
"--from" was introduced in a9080475 (teach format-patch to place
other authors into in-body "From", 2013-07-03).
Teach the make_cover_letter() function to honor the option, instead of
always using the current committer identity. Change variable name from
"committer" to "from" to better reflect the purpose of the variable.
Signed-off-by: Mirko Faina <mroik@delayed.space>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc update.
* jc/doc-rerere-update:
rerere: minor documantation update
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Doc update.
* kh/doc-rerere-options-xref:
doc: rerere-options.adoc: link to git-rerere(1)
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"git merge-file" can be run outside a repository, but it ignored
all configuration, even the per-user ones. The command now uses
available configuration files to find its customization.
* yt/merge-file-outside-a-repository:
merge-file: honor merge.conflictStyle outside of a repository
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A handful of documentation pages have been modernized to use the
"synopsis" style.
* ja/doc-synopsis-style-even-more:
doc: convert git-show to synopsis style
doc: fix some style issues in git-clone and for-each-ref-options
doc: finalize git-clone documentation conversion to synopsis style
doc: convert git-submodule to synopsis style
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Allow recording process ID of the process that holds the lock next
to a lockfile for diagnosis.
* pc/lockfile-pid:
lockfile: add PID file for debugging stale locks
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Previous commits have set up an infrastructure for `--filter=auto` to
automatically prepare a partial clone filter based on what the server
advertised and the client accepted.
Using that infrastructure, let's now enable the `--filter=auto` option
in `git clone` and `git fetch` by setting `allow_auto_filter` to 1.
Note that these small changes mean that when `git clone --filter=auto`
or `git fetch --filter=auto` are used, "auto" is automatically saved
as the partial clone filter for the server on the client. Therefore
subsequent calls to `git fetch` on the client will automatically use
this "auto" mode even without `--filter=auto`.
Let's also set `allow_auto_filter` to 1 in `transport.c`, as the
transport layer must be able to accept the "auto" filter spec even if
the invoking command hasn't fully parsed it yet.
When an "auto" filter is requested, let's have the "fetch-pack.c" code
in `do_fetch_pack_v2()` compute a filter and send it to the server.
In `do_fetch_pack_v2()` the logic also needs to check for the
"promisor-remote" capability and call `promisor_remote_reply()` to
parse advertised remotes and populate the list of those accepted (and
their filters).
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `--filter=<filter-spec>` option is documented in most commands that
support it except `git fetch`.
Let's fix that and document this option. To ensure consistency across
commands, let's reuse the exact description currently found in
`git clone`.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A previous commit allowed a server to pass additional fields through
the "promisor-remote" protocol capability after the "name" and "url"
fields, specifically the "partialCloneFilter" and "token" fields.
Another previous commit, c213820c51 (promisor-remote: allow a client
to check fields, 2025-09-08), has made it possible for a client to
decide if it accepts a promisor remote advertised by a server based
on these additional fields.
Often though, it would be interesting for the client to just store in
its configuration files these additional fields passed by the server,
so that it can use them when needed.
For example if a token is necessary to access a promisor remote, that
token could be updated frequently only on the server side and then
passed to all the clients through the "promisor-remote" capability,
avoiding the need to update it on all the clients manually.
Storing the token on the client side makes sure that the token is
available when the client needs to access the promisor remotes for a
lazy fetch.
To allow this, let's introduce a new "promisor.storeFields"
configuration variable.
Note that for a partial clone filter, it's less interesting to have
it stored on the client. This is because a filter should be used
right away and we already pass a `--filter=<filter-spec>` option to
`git clone` when starting a partial clone. Storing the filter could
perhaps still be interesting for information purposes.
Like "promisor.checkFields" and "promisor.sendFields", the new
configuration variable should contain a comma or space separated list
of field names. Only the "partialCloneFilter" and "token" field names
are supported for now.
When a server advertises a promisor remote, for example "foo", along
with for example "token=XXXXX" to a client, and on the client side
"promisor.storeFields" contains "token", then the client will store
XXXXX for the "remote.foo.token" variable in its configuration file
and reload its configuration so it can immediately use this new
configuration variable.
A message is emitted on stderr to warn users when the config is
changed.
Note that even if "promisor.acceptFromServer" is set to "all", a
promisor remote has to be already configured on the client side for
some of its config to be changed. In any case no new remote is
configured and no new URL is stored.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git-cherry(1) links to this command. These two commands are similar and
we also mention it in the “Examples” section now. Let’s link to it.
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The utility and usability of git-patch-id(1) was discussed
relatively recently:[1]
Using "git patch-id" is definitely in the "write a script for it"
category. I don't think I've ever used it as-is from the command
line as part of a one-liner. It's very much a command that is
designed purely for scripting, the interface is just odd and baroque
and doesn't really make sense for one-liners.
The typical use of patch-id is to generate two *lists* of patch-ids,
then sort them and use the patch-id as a key to find commits that
look the same.
The command doc *could* use an example, and since it is a mapper command
it makes sense for that example to be a little script.
Mapping the commits of some branch to an upstream ref allows us to
demonstrate generating two lists, sorting them, joining them, and
finally discarding the patch ID lookup column with cut(1).
† 1: https://lore.kernel.org/workflows/CAHk-=wiN+8EUoik4UeAJ-HPSU7hczQP+8+_uP3vtAy_=YfJ9PQ@mail.gmail.com/
Inspired-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Emphasize that you can pass multiple patches or diffs to this command.
git-patch-id(1) is an efficient pID–commit mapper, able to map
thousands of commits in seconds. But discussions on the command
seem to typically[1] use the standard loop-over-rev-list-and-
shell-out pattern:
for commit in rev-list:
prepare a diff from commit | git patch-id
This is unnecessary; we can bulk-process the patches:
git rev-list --no-merges <ref> |
git diff-tree --patch --stdin |
git patch-id --stable
The first version (translated to shell) takes a little over nine
minutes for a commit history of about 78K commits.[2] The other one,
by contrast, takes slightly less than a minute.
Also drop “the” from “standard input”.
† 1: https://stackoverflow.com/a/19758159
† 2: This is `master` of this repository on 2025-10-02
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While we document the values that can be passed to the "--update-refs="
option, we don't give the user any hint what the default behaviour is.
Document it.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With the preceding commit we have changed "--ref-action=" to only
control which refs are supposed to be updated, not what happens with
them. As a consequence, the option is now somewhat misnamed, as we don't
control the action itself anymore.
Rename it to "--update-refs=" to better align it with its new use.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The git-history(1) command has the ability to perform a dry-run
that will not end up modifying any references. Instead, we'll only print
any ref updates that would happen as a consequence of performing the
operation.
This mode is somewhat hidden though behind the "--ref-action=print"
option. This command line option has its origin in git-replay(1), where
it's probably an okayish interface as this command is sitting more on
the plumbing side of tools. But git-history(1) is a user-facing tool,
and this way of achieving a dry-run is way too technical and thus not
very discoverable.
Besides usability issues, it also has another issue: the dry-run mode
will always operate as if the user wanted to rewrite all branches. But
in fact, the user also has the option to only update the HEAD reference,
and they might want to perform a dry-run of such an operation, too. We
could of course introduce "--ref-action=print-head", but that would
become even less ergonomic.
Replace "--ref-action=print" with a new "--dry-run" toggle. This new
toggle works with both "--ref-action={head,branches}" and is way more
discoverable.
Add a test to verify that both "--ref-action=" values behave as
expected.
This patch is best viewed with "--ignore-space-change".
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If the user wants to find what are the available keys, they need to
either check the documentation or to ask for all the key-value pairs
by using --all.
Add a new flag --keys for listing only the available keys without
listing the values.
Signed-off-by: Lucas Seiki Oshiro <lucasseikioshiro@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both subcommands in git-repo(1) accept the "keyvalue" format. This
format is newline-delimited, where the key is separated from the
value with an equals sign.
The name of this option is suboptimal though, as it is both too
limiting while at the same time not really indicating what it
actually does:
- There is no mention of the format being newline-delimited, which
is the key differentiator to the "nul" format.
- Both "nul" and "keyvalue" have a key and a value, so the latter
is not exactly giving any hint what makes it so special.
- "keyvalue" requires there to be, well, a key and a value, but we
want to add additional output that is only going to be newline
delimited.
Taken together, "keyvalue" is kind of a bad name for this output
format.
Luckily, the git-repo(1) command is still rather new and marked as
experimental, so things aren't cast into stone yet. Rename the
format to "lines" instead to better indicate that the major
difference is that we'll get newline-delimited output. This new name
will also be a better fit for a subsequent extension in git-repo(1).
Helped-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Lucas Seiki Oshiro <lucasseikioshiro@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We often say things like /* NEEDSWORK: further _do_ _this_ */ in
comments, but it is a short-hand to say "We might later want to do
this. We might not. We do not have to decide it right now at this
moment in the commit this comment was added. If somebody is
inclined to work in this area further, the first thing they need to
do is to figure out if it truly makes sense to do so, before blindly
doing it."
This seems to have never been documented. Do so now.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Docfix.
* sd/doc-my1c-api-config-reference-fix:
doc: fix repo_config documentation reference
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Docfix.
* mc/doc-send-email-signed-off-by-cc:
doc: send-email: correct --no-signed-off-by-cc misspelling
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git-format-patch(1) and git-am(1) deal with formatting commits as
patches and applying them, respectively. Naturally they use a few
delimiters to mark where the commit message ends. This can lead to
surprising behavior when these delimiters are used in the commit
message itself.
git-format-patch(1) will accept any commit message and not warn or error
about these delimiters being used.[1]
Especially problematic is the presence of unindented diffs in the commit
message; the patch machinery will naturally (since the commit message
has ended) try to apply that diff and everything after it.[2]
It is unclear whether any commands in this chain will learn to warn
about this. One concern could be that users have learned to rely on
the three-dash line rule to conveniently add extra-commit message
information in the commit message, knowing that git-am(1) will
ignore it.[4]
All of this is covered already, technically. However, we should spell
out the implications.
† 1: There is also git-commit(1) to consider. However, making that
command warn or error out over such delimiters would be disruptive
to all Git users who never use email in their workflow.
† 2: Recently patch(1) caused this issue for a project, but it was noted
that git-am(1) has the same behavior[3]
† 3: https://github.com/i3/i3/pull/6564#issuecomment-3858381425
† 4: https://lore.kernel.org/git/xmqqldh4b5y2.fsf@gitster.g/
https://lore.kernel.org/git/V3_format-patch_caveats.354@msgid.xyz/
Reported-by: Matthias Beyer <mail@beyermatthias.de>
Reported-by: Christoph Anton Mitterer <calestyo@scientia.org>
Reported-by: Matheus Tavares <matheus.tavb@gmail.com>
Reported-by: Chris Packham <judge.packham@gmail.com>
Helped-by: Jakob Haufe <sur5r@sur5r.net>
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We do not use // comments in our C code, which is implied by the
description of multi-line comment rule and its examples, but is not
explicitly spelled out. Spell it out.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc fix.
* kh/doc-shortlog-fix:
doc: shortlog: put back trailer paragraphs
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Five commands include these options. Let’s link to the command so that
the curious user can learn more about what “rerere” is about.
It’s also better to consistently refer to things like
e.g. “git-subcommand(1)” over `git subcommand` or `subcommand`.
Also apply the same treatment to git-add(1).
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The help text and the documentation for the "--expire" option of
"git worktree [list|prune]" have been improved.
* sb/doc-worktree-prune-expire-improvement:
worktree: clarify that --expire only affects missing worktrees
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"git replay" is taught to drop commits that become empty (not the
ones that are empty in the original).
* pw/replay-drop-empty:
replay: drop commits that become empty
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"git history" history rewriting UI.
* ps/history:
builtin/history: implement "reword" subcommand
builtin: add new "history" command
wt-status: provide function to expose status for trees
replay: support updating detached HEAD
replay: support empty commit ranges
replay: small set of cleanups
builtin/replay: move core logic into "libgit.a"
builtin/replay: extract core logic to replay revisions
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Let's not call our users "it". Also "rerere forget \*.c" does not
forget resolutions for just '*.c'; it forgets for all the files
whose filenames end with ".c".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Document `--verify` and rephrase the `--[no-]verify` section to lead
with the default, in imperative mood.[1]
Historically it makes sense that only the negated forms are documented;
they are all run by default and thus you only need to use hook options
if you want to turn some of them off. But, beyond just desiring uniform
documentation,[2] it’s very much possible to have, say, a Git alias with
`--no-verify` that you might sometimes want to turn back on with
the *positive* form.
Also mention the options in the “Hooks” section and mention that
`post-applypatch` cannot be skipped.
† 1: See e.g. acffc5e9 (doc: convert git-remote to synopsis style,
2025-12-20)
† 2: https://lore.kernel.org/git/xmqqcyct1mtq.fsf@gitster.g/
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The option `--message-id` was added in a078f732 (git-am: add
--message-id/--no-message-id, 2014-11-25) back when git-interpret-
trailers(1) was relatively new. Let’s spell out that it is a trailer
and link to the dedicated trailer command.
Also use inline-verbatim for `Message-ID`.
Also link to git-interpret-trailers(1) on `--signoff`.
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are many mentions of commands using inline-verbatim or
emphasis ('). We just mention the command themselves, not specific
invocations like `git am <opts>`. Let’s link to them instead.
There are also many such mentions which then link to the command right
afterwards. Simplify to just using a link.
Also remove “see <gitlink>” phrases where they have now already
been mentioned.
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Building the documentation with meson when the build directory is
not an immediate subdirectory of the source directory prints the
following error
[2/1349] Generating Documentation/mer... command (wrapped by meson to set env)
../../Documentation/generate-mergetool-list.sh: line 15: ../git-mergetool--lib.sh: No such file or directory
The build does not fail because the failure is upstream of a pipe. Fix
the error by passing the correct source directory when meson runs
"generate-mergetool-list.sh". As that script sets $MERGE_TOOLS_DIR
we do not need to set it in the environment when running the script.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our current loose object format has a few problems. First, it is not
efficient: the list of object IDs is not sorted and even if it were,
there would not be an efficient way to look up objects in both
algorithms.
Second, we need to store mappings for things which are not technically
loose objects but are not packed objects, either, and so cannot be
stored in a pack index. These kinds of things include shallows, their
parents, and their trees, as well as submodules. Yet we also need to
implement a sensible way to store the kind of object so that we can
prune unneeded entries. For instance, if the user has updated the
shallows, we can remove the old values.
For these reasons, introduce a new binary object map format. The
careful reader will notice that it resembles very closely the pack index
v3 format. Add an in-memory object map as well, and allow writing to a
batched map, which can then be written later as one of the binary object
maps. Include several tests for round tripping and data lookup across
algorithms.
Note that the use of this code elsewhere in Git will involve some C code
and some C-compatible code in Rust that will be introduced in a future
commit. Thus, for example, we ignore the fact that if there is no
current batch and the caller asks for data to be written, this code does
nothing, mostly because this code also does not involve itself with
opening or manipulating files. The C code that we will add later will
implement this functionality at a higher level and take care of this,
since the code which is necessary for writing to the object store is
deeply involved with our C abstractions and it would require extensive
work (which would not be especially valuable at this point) to port
those to Rust.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running outside a repository, git merge-file ignores the
merge.conflictStyle configuration variable entirely. Since the
function receives `repo` from the caller (which is NULL outside a
repository), and repo_config() falls back to reading system and user
configuration when passed NULL, pass `repo` to repo_config()
unconditionally.
Also document that merge.conflictStyle is honored.
Signed-off-by: Yannik Tausch <dev@ytausch.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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- git-add.adoc: Update the --force documentation for submodule behaviour
to be added even the given configuration ignore=all.
- gitmodules.adoc and config/submodule.adoc: The submodule config
ignore=all now need --force in order to update the index.
Signed-off-by: Claus Schneider(Eficode) <claus.schneider@eficode.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In MyFirstContribution.adoc, the link to the repo_config()
documentation is invalid because the related documentation was moved
to a different file.
Replace the path for the repo_config() documentation from
'Documentation/technical/api-config.h' to 'config.h'.
Signed-off-by: SoutrikDas <valusoutrik@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* add synopsis block definition in asciidoc.conf.in
* convert commands to synopsis style
* use _<placeholder>_ for arguments
* minor formatting fixes
Reviewed-by: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* spell out all forms of --[no-]reject-shallow in git-clone
* use imperative mood for the first line of options
* Use asciidoc NOTE macro
* fix markups
Reviewed-by: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use backticks where appropriate for command-line options
Reviewed-by: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* convert commands to synopsis style
* use _<placeholder>_ for arguments
* convert inline lists into proper definition lists
* minor formatting fixes
Reviewed-by: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "-z" and "--max-depth" documentation (and implementation of
"-z") in the "git last-modified" command have been updated.
* tc/last-modified-options-cleanup:
last-modified: change default max-depth to 0
last-modified: document option '--max-depth'
last-modified: document option '-z'
last-modified: clarify in the docs the command takes a pathspec
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Doc update.
* sp/myfirstcontribution-include-update:
doc: MyFirstContribution: fix missing dependencies and clarify build steps
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Avoid local submodule repository directory paths overlapping with
each other by encoding submodule names before using them as path
components.
* ar/submodule-gitdir-tweak:
submodule: detect conflicts with existing gitdir configs
submodule: hash the submodule name for the gitdir path
submodule: fix case-folding gitdir filesystem collisions
submodule--helper: fix filesystem collisions by encoding gitdir paths
builtin/credential-store: move is_rfc3986_unreserved to url.[ch]
submodule--helper: add gitdir migration command
submodule: allow runtime enabling extensions.submodulePathConfig
submodule: introduce extensions.submodulePathConfig
builtin/submodule--helper: add gitdir command
submodule: always validate gitdirs inside submodule_name_to_gitdir
submodule--helper: use submodule_name_to_gitdir in add_submodule
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