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53665 commits

Author SHA1 Message Date
Pratik Karki cda614e489 builtin rebase: show progress when connected to a terminal
In this commit, we pass `--progress` to the `format-patch` command if
stderr is connected to an interactive terminal, unless we're in quiet
mode.

This `--progress` option will be used in `format-patch` to show progress
reports on stderr as patches are generated.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:16:05 +09:00
Pratik Karki 7eecfa5601 builtin rebase: fast-forward to onto if it is a proper descendant
When trying to rebase onto a direct descendant of HEAD, we can
take a shortcut and fast-forward instead. This commit makes it so.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:16:05 +09:00
Pratik Karki fa443d40b1 builtin rebase: optionally pass custom reflogs to reset_head()
In the next patch, we will make use of that in the code that
fast-forwards to `onto` whenever possible.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:16:05 +09:00
Pratik Karki 8f5986d95a builtin rebase: optionally auto-detect the upstream
The `git rebase` command, when called without the `<upstream>`
command-line argument, automatically looks for the upstream
branch configured for the current branch.

With this commit, the builtin rebase learned that trick, too.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:16:05 +09:00
Pratik Karki 9dba809a69 builtin rebase: support --root
This option allows to rebase entire histories up to, and including, the
root commit.

The conversion from the shell script is straight-forward, apart from
the fact that we do not have to write an empty tree in C.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki ba1905a5fe builtin rebase: add support for custom merge strategies
When running a rebase in non-am mode, it uses the recursive merge to
cherry-pick the commits, and the rebase command allows to configure
the merge strategy to be used in this operation.

This commit adds that support to the builtin rebase.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 92d0d74e8d builtin rebase: support fork-point option
This commit adds support for `--fork-point` and `--no-fork-point`.
This is converted as-is from `git-legacy-rebase.sh`.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 103148aad8 merge-base --fork-point: extract libified function
We need this functionality in the builtin rebase.

Note: to make this function truly reusable, we have to switch the call
get_merges_many_dirty() to get_merges_many() because we want the commit
flags to be reset (otherwise, subsequent get_merge_bases() calls would
obtain incorrect results). This did not matter when the function was
called in `git rev-parse --fork-point` because in that command, the
process definitely did not traverse any commits before exiting.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 3c3588c7d3 builtin rebase: support --rebase-merges[=[no-]rebase-cousins]
The mode to rebase non-linear branches is now supported by the builtin
rebase, too.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 9b3a448b4e builtin rebase: support --allow-empty-message option
This commit introduces the `--allow-empty-message` option to
`builtin/rebase.c`. The motivation behind this option is: if there are
empty messages (which is not allowed in Git by default, but can be
imported from different version control systems), the rebase will fail.

Using `--allow-empty-message` overrides that behaviour which will allow
the commits having empty messages to continue in rebase operation.

Note: a very recent change made this the default in the shell scripted
`git rebase`, therefore the builtin rebase does the same.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 68e46d7868 builtin rebase: support --exec
This commit adds support for the `--exec` option which takes a shell
command-line as argument. This argument will be appended as an `exec
<cmd>` command after each line in the todo list that creates a commit in
the final history.  commands.

Note: while the shell script version of `git rebase` assigned the empty
string to `cmd` by default, we *unset* it here because the code looks
nicer and it does not change the behavior.

The `--exec` option requires `--interactive` machinery.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 6defce2b02 builtin rebase: support --autostash option
To support `--autostash` we introduce a function `apply_autostash()`
just like in `git-legacy-rebase.sh`.

Rather than refactoring and using the same function that exists in
`sequencer.c`, we go a different route here, to avoid clashes with
the sister GSoC project that turns the interactive rebase into a
builtin.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:45 +09:00
Pratik Karki 7998dbe1ec builtin rebase: support -C and --whitespace=<type>
This commit converts more code from the shell script version to the
builtin rebase. In this instance, we just have to be careful to
keep support for passing multiple `--whitespace` options, as the
shell script version does so, too.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:12:42 +09:00
Pratik Karki 12026a412c builtin rebase: support --gpg-sign option
This commit introduces support for `--gpg-sign` option which is used
to GPG-sign commits.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 14:09:39 +09:00
Rasmus Villemoes 912104770d git-help.txt: document "git help cmd" vs "git cmd --help" for aliases
This documents the existing behaviour of "git help cmd" when cmd is an
alias, as well as providing a hint to use the "git cmd --help" form to
be taken directly to the man page for the aliased command.

Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 10:21:44 +09:00
Rasmus Villemoes a9a60b94cc git.c: handle_alias: prepend alias info when first argument is -h
Most git commands respond to -h anywhere in the command line, or at
least as a first and lone argument, by printing the usage
information. For aliases, we can provide a little more information that
might be useful in interpreting/understanding the following output by
prepending a line telling that the command is an alias, and for what.

When one invokes a simple alias, such as "cp = cherry-pick"
with -h, this results in

$ git cp -h
'cp' is aliased to 'cherry-pick'
usage: git cherry-pick [<options>] <commit-ish>...
...

When the alias consists of more than one word, this provides the
additional benefit of informing the user which options are implicit in
using the alias, e.g. with "cp = cherry-pick -n":

$ git cp -h
'cp' is aliased to 'cherry-pick -n'
usage: git cherry-pick [<options>] <commit-ish>...
...

For shell commands, we cannot know how it responds to -h, but printing
this line to stderr should not hurt, and can help in figuring out what
is happening in a case like

$ git sc -h
'sc' is aliased to '!somecommand'
somecommand: invalid option '-h'

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 10:21:43 +09:00
Rasmus Villemoes e6e76baaf4 help: redirect to aliased commands for "git cmd --help"
As discussed in the thread for v1 of this patch [1] [2], this changes the
rules for "git foo --help" when foo is an alias.

(1) When invoked as "git help foo", we continue to print the "foo is
aliased to bar" message and nothing else.

(2) If foo is an alias for a shell command, print "foo is aliased to
!bar" as usual.

(3) Otherwise, print "foo is aliased to bar" to the standard error
stream, and then break the alias string into words and pretend as if
"git word[0] --help" were called.

Getting the man page for git-cherry-pick directly with "git cp --help"
is consistent with "--help" generally providing more comprehensive help
than "-h". Printing the alias definition to stderr means that in certain
cases (e.g. if help.format=web or if the pager uses an alternate screen
and does not clear the terminal), one has

'cp' is aliased to 'cherry-pick -n'

above the prompt when one returns to the terminal/quits the pager, which
is a useful reminder that using 'cp' has some flag implicitly set. There
are cases where this information vanishes or gets scrolled
away, but being printed to stderr, it should never hurt.

[1] https://public-inbox.org/git/20180926102636.30691-1-rv@rasmusvillemoes.dk/
[2] https://public-inbox.org/git/20180926184914.GC30680@sigill.intra.peff.net/

Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 10:21:41 +09:00
Mihir Mehta ca8ed443a5 doc: fix a typo and clarify a sentence
I noticed that git-merge-base was unlikely to actually be a git command,
and tried it in my shell. Seeing that it doesn't work, I cleaned up two
places in the docs where it appears.

Signed-off-by: Mihir Mehta <mihir@cs.utexas.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11 09:39:15 +09:00
Junio C Hamano 5a0cc8aca7 Third batch for 2.20
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-10 12:38:03 +09:00
Junio C Hamano 66ec2373fe Merge branch 'ab/fsck-skiplist'
Update fsck.skipList implementation and documentation.

* ab/fsck-skiplist:
  fsck: support comments & empty lines in skipList
  fsck: use oidset instead of oid_array for skipList
  fsck: use strbuf_getline() to read skiplist file
  fsck: add a performance test for skipList
  fsck: add a performance test
  fsck: document that skipList input must be unabbreviated
  fsck: document and test commented & empty line skipList input
  fsck: document and test sorted skipList input
  fsck tests: add a test for no skipList input
  fsck tests: setup of bogus commit object
2018-10-10 12:37:16 +09:00
Junio C Hamano 468b322137 Merge branch 'ds/multi-pack-verify'
"git multi-pack-index" learned to detect corruption in the .midx
file it uses, and this feature has been integrated into "git fsck".

* ds/multi-pack-verify:
  fsck: verify multi-pack-index
  multi-pack-index: report progress during 'verify'
  multi-pack-index: verify object offsets
  multi-pack-index: fix 32-bit vs 64-bit size check
  multi-pack-index: verify oid lookup order
  multi-pack-index: verify oid fanout order
  multi-pack-index: verify missing pack
  multi-pack-index: verify packname order
  multi-pack-index: verify corrupt chunk lookup table
  multi-pack-index: verify bad header
  multi-pack-index: add 'verify' verb
2018-10-10 12:37:16 +09:00
Junio C Hamano d555663f16 Merge branch 'bc/hash-independent-tests'
Various tests have been updated to make it easier to swap the
hash function used for object identification.

* bc/hash-independent-tests:
  t5318: use test_oid for HASH_LEN
  t1407: make hash size independent
  t1406: make hash-size independent
  t1405: make hash size independent
  t1400: switch hard-coded object ID to variable
  t1006: make hash size independent
  t0064: make hash size independent
  t0002: abstract away SHA-1 specific constants
  t0000: update tests for SHA-256
  t0000: use hash translation table
  t: add test functions to translate hash-related values
2018-10-10 12:37:16 +09:00
Junio C Hamano 77b5046ae3 Merge branch 'nd/test-tool'
Test helper binaries clean-up.

* nd/test-tool:
  Makefile: add a hint about TEST_BUILTINS_OBJS
  t/helper: merge test-dump-fsmonitor into test-tool
  t/helper: merge test-parse-options into test-tool
  t/helper: merge test-pkt-line into test-tool
  t/helper: merge test-dump-untracked-cache into test-tool
  t/helper: keep test-tool command list sorted
2018-10-10 12:37:16 +09:00
Junio C Hamano 3ba371f9df Merge branch 'nd/config-split'
Split Documentation/config.txt for easier maintenance.

* nd/config-split:
  config.txt: move submodule part out to a separate file
  config.txt: move sequence.editor out of "core" part
  config.txt: move sendemail part out to a separate file
  config.txt: move receive part out to a separate file
  config.txt: move push part out to a separate file
  config.txt: move pull part out to a separate file
  config.txt: move gui part out to a separate file
  config.txt: move gitcvs part out to a separate file
  config.txt: move format part out to a separate file
  config.txt: move fetch part out to a separate file
  config.txt: follow camelCase naming
2018-10-10 12:37:15 +09:00
Christian Hesse 0f952b2659 subtree: add build targets 'man' and 'html'
We have targets 'install-man' and 'install-html', let's add build
targets as well.

Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-10 11:21:47 +09:00
Jonathan Tan 2f215ff10b cache-tree: skip some blob checks in partial clone
In a partial clone, whenever a sparse checkout occurs, the existence of
all blobs in the index is verified, whether they are included or
excluded by the .git/info/sparse-checkout specification. This
significantly degrades performance because a lazy fetch occurs whenever
the existence of a missing blob is checked.

This is because cache_tree_update() checks the existence of all objects
in the index, whether or not CE_SKIP_WORKTREE is set on them. Teach
cache_tree_update() to skip checking CE_SKIP_WORKTREE objects when the
repository is a partial clone. This improves performance for sparse
checkout and also other operations that use cache_tree_update().

Instead of completely removing the check, an argument could be made that
the check should instead be replaced by a check that the blob is
promised, but for performance reasons, I decided not to do this.
If the user needs to verify the repository, it can be done using fsck
(which will notify if a tree points to a missing and non-promised blob,
whether the blob is included or excluded by the sparse-checkout
specification).

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-10 10:20:43 +09:00
Derrick Stolee 783faedd65 contrib: add coverage-diff script
We have coverage targets in our Makefile for using gcov to display line
coverage based on our test suite. The way I like to do it is to run:

    make coverage-test
    make coverage-report

This leaves the repo in a state where every X.c file that was covered has
an X.c.gcov file containing the coverage counts for every line, and "#####"
at every uncovered line.

There have been a few bugs in recent patches what would have been caught
if the test suite covered those blocks (including a few of mine). I want
to work towards a "sensible" amount of coverage on new topics. In my opinion,
this means that any logic should be covered, but the 'die()' blocks covering
very unlikely (or near-impossible) situations may not warrant coverage.

It is important to not measure the coverage of the codebase by what old code
is not covered. To help, I created the 'contrib/coverage-diff.sh' script.
After creating the coverage statistics at a version (say, 'topic') you can
then run

    contrib/coverage-diff.sh base topic

to see the lines added between 'base' and 'topic' that are not covered by the
test suite. The output uses 'git blame -s' format so you can find the commits
responsible and view the line numbers for quick access to the context, but
trims leading tabs in the file contents to reduce output width.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-10 10:11:35 +09:00
Junio C Hamano 2efbb7f521 Declare that the next one will be named 2.20
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-10 09:20:03 +09:00
brian m. carlson b548d698a0 editorconfig: indicate settings should be kept in sync
Now that we have two places where we set code formatting settings,
.editorconfig and .clang-format, it's possible that they could fall out
of sync.  This is relatively unlikely, since we're not likely to change
the tab width or our preference for tabs, but just in case, add comments
to both files reminding future developers to keep them in sync.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 18:34:15 +09:00
brian m. carlson 6f9beef335 editorconfig: provide editor settings for Git developers
Contributors to Git use a variety of editors, each with their own
configuration files.  Because C lacks the defined norms on how to indent
and style code that other languages, such as Ruby and Rust, have, it's
possible for various contributors, especially new ones, to have
configured their editor to use a style other than the style the Git
community prefers.

To make automatically configuring one's editor easier, provide an
EditorConfig file.  This is an INI-style configuration file that can be
used to specify editor settings and can be understood by a wide variety
of editors.  Some editors include this support natively; others require
a plugin.  Regardless, providing such a file allows users to
automatically configure their editor of choice with the correct settings
by default.

Provide global settings to set the character set to UTF-8 and insert a
final newline into files.  Provide language-specific settings for C,
Shell, Perl, and Python files according to what CodingGuidelines already
specifies.  Since the indentation of other files varies, especially
certain AsciiDoc files, don't provide any settings for them until a
clear consensus forward emerges.

Set the line length for commit messages to 72 characters, which is the
generally accepted line length for emails, since we send patches by
email.

Don't specify an end of line type.  While the Git community uses
Unix-style line endings in the repository, some Windows users may use
Git's auto-conversion support and forcing Unix-style line endings might
cause problems for those users.

Finally, leave out a root directive, which would prevent reading other
EditorConfig files higher up in the tree, in case someone wants to set
the end of line type for their system in such a file.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 18:33:57 +09:00
Taylor Blau 40f327faf5 transport.c: introduce core.alternateRefsPrefixes
The recently-introduced "core.alternateRefsCommand" allows callers to
specify with high flexibility the tips that they wish to advertise from
alternates. This flexibility comes at the cost of some inconvenience
when the caller only wishes to limit the advertisement to one or more
prefixes.

For example, to advertise only tags, a caller using
'core.alternateRefsCommand' would have to do:

  $ git config core.alternateRefsCommand ' \
      f() { git -C "$1" for-each-ref \
              refs/tags --format="%(objectname)" }; f "$@"'

The above is cumbersome to write, so let's introduce a
"core.alternateRefsPrefixes" to address this common case. Instead, the
caller can run:

  $ git config core.alternateRefsPrefixes 'refs/tags'

Which will behave identically to the longer example using
"core.alternateRefsCommand".

Since the value of "core.alternateRefsPrefixes" is appended to 'git
for-each-ref' and then executed, include a "--" before taking the
configured value to avoid misinterpreting arguments as flags to 'git
for-each-ref'.

In the case that the caller wishes to specify multiple prefixes, they
may separate them by whitespace. If "core.alternateRefsCommand" is set,
it will take precedence over "core.alternateRefsPrefixes".

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 14:30:03 +09:00
Taylor Blau 89284c1d6c transport.c: introduce core.alternateRefsCommand
When in a repository containing one or more alternates, Git would
sometimes like to list references from those alternates. For example,
'git receive-pack' lists the "tips" pointed to by references in those
alternates as special ".have" references.

Listing ".have" references is designed to make pushing changes from
upstream to a fork a lightweight operation, by advertising to the pusher
that the fork already has the objects (via its alternate). Thus, the
client can avoid sending them.

However, when the alternate (upstream, in the previous example) has a
pathologically large number of references, the initial advertisement is
too expensive. In fact, it can dominate any such optimization where the
pusher avoids sending certain objects.

Introduce "core.alternateRefsCommand" in order to provide a facility to
limit or filter alternate references. This can be used, for example, to
filter out references the alternate does not wish to send (for space
concerns, or otherwise) during the initial advertisement.

Let the repository that has alternates configure this command to avoid
trusting the alternate to provide us a safe command to run in the shell.
To find the alternate, pass its absolute path as the first argument.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 14:30:03 +09:00
Taylor Blau 1e5f31d444 transport.c: extract 'fill_alternate_refs_command'
To list alternate references, 'read_alternate_refs' creates a child
process running 'git for-each-ref' in the alternate's Git directory.

Prepare to run other commands besides 'git for-each-ref' by introducing
and moving the relevant code from 'read_alternate_refs' to
'fill_alternate_refs_command'.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 14:30:03 +09:00
Jeff King bdf4276c91 transport: drop refnames from for_each_alternate_ref
None of the current callers use the refname parameter we pass to their
callbacks. In theory somebody _could_ do so, but it's actually quite
weird if you think about it: it's a ref in somebody else's repository.
So the name has no meaning locally, and in fact there may be duplicates
if there are multiple alternates.

The users of this interface really only care about seeing some ref tips,
since that promises that the alternate has the full commit graph
reachable from there. So let's keep the information we pass back to the
bare minimum.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 14:30:02 +09:00
Alban Gruin 34b47315d9 rebase -i: move rebase--helper modes to rebase--interactive
This moves the rebase--helper modes still used by
git-rebase--preserve-merges.sh (`--shorten-ids`, `--expand-ids`,
`--check-todo-list`, `--rearrange-squash` and `--add-exec-commands`) to
rebase--interactive.c.

git-rebase--preserve-merges.sh is modified accordingly, and
rebase--helper.c is removed as it is useless now.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 10:44:10 +09:00
Alban Gruin cf808208ec rebase -i: remove git-rebase--interactive.sh
This removes git-rebase--interactive.sh, as its functionnality has been
replaced by git-rebase--interactive2.

git-rebase--interactive2.c is then renamed to git-rebase--interactive.c.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 10:44:10 +09:00
Alban Gruin 0af129b2ed rebase--interactive2: rewrite the submodes of interactive rebase in C
This rewrites the submodes of interactive rebase (`--continue`,
`--skip`, `--edit-todo`, and `--show-current-patch`) in C.

git-rebase.sh is then modified to call directly git-rebase--interactive2
instead of git-rebase--interactive.sh.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 10:44:10 +09:00
Alban Gruin 53bbcfbde7 rebase -i: implement the main part of interactive rebase as a builtin
This rewrites the part of interactive rebase which initializes the
basic state, make the script and complete the action, as a buitin, named
git-rebase--interactive2 for now.  Others modes (`--continue`,
`--edit-todo`, etc.) will be rewritten in the next commit.

git-rebase--interactive.sh is modified to call git-rebase--interactive2
instead of git-rebase--helper.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-09 10:44:10 +09:00
Michael Witten ad0b8f9575 docs: typo: s/isimilar/similar/
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 10:11:02 +09:00
Michael Witten 634dbd0ad8 docs: graph: remove unnecessary `graph_update()' call
The sample code calls `get_revision()' followed by `graph_update()',
but the documentation and source code indicate that `get_revision()'
already calls `graph_update()' for you.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 10:10:49 +09:00
Michael Witten 42ce44e00a docs: typo: s/go/to/
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 10:10:42 +09:00
Steven Fernandez 705f5f122c git-completion.bash: add completion for stash list
Since stash list accepts git-log options, add the following useful
options that make sense in the context of the `git stash list` command:

  --name-status --oneline --patch-with-stat

Signed-off-by: Steven Fernandez <steve@lonetwin.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 10:05:49 +09:00
Jonathan Tan e70a3030e7 fetch: do not list refs if fetching only hashes
If only hash literals are given on a "git fetch" command-line, tag
following is not requested, and the fetch is done using protocol v2, a
list of refs is not required from the remote. Therefore, optimize by
invoking transport_get_remote_refs() only if we need the refs.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 09:53:21 +09:00
Jonathan Tan 6ab4055775 transport: list refs before fetch if necessary
The built-in bundle transport and the transport helper interface do not
work when transport_fetch_refs() is called immediately after transport
creation. This will be needed in a subsequent patch, so fix this.

Evidence: fetch_refs_from_bundle() relies on data->header being
initialized in get_refs_from_bundle(), and fetch() in transport-helper.c
relies on either data->fetch or data->import being set by get_helper(),
but neither transport_helper_init() nor fetch() calls get_helper().

Up until the introduction of the partial clone feature, this has not
been a problem, because transport_fetch_refs() is always called after
transport_get_remote_refs(). With the introduction of the partial clone
feature, which involves calling transport_fetch_refs() (to fetch objects
by their OIDs) without transport_get_remote_refs(), this is still not a
problem, but only coincidentally - we do not support partially cloning a
bundle, and as for cloning using a transport-helper-using protocol, it
so happens that before transport_fetch_refs() is called, fetch_refs() in
fetch-object.c calls transport_set_option(), which means that the
aforementioned get_helper() is invoked through set_helper_option() in
transport-helper.c.

This could be fixed by fixing the transports themselves, but it doesn't
seem like a good idea to me to open up previously untested code paths;
also, there may be transport helpers in the wild that assume that "list"
is always called before "fetch". Instead, fix this by having
transport_fetch_refs() call transport_get_remote_refs() to ensure that
the latter is always called at least once, unless the transport
explicitly states that it supports fetching without listing refs.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 09:53:19 +09:00
Jonathan Tan 0177565148 transport: do not list refs if possible
When all refs to be fetched are exact OIDs, it is possible to perform a
fetch without requiring the remote to list refs if protocol v2 is used.
Teach Git to do this.

This currently has an effect only for lazy fetches done from partial
clones. The change necessary to likewise optimize "git fetch <remote>
<sha-1>" will be done in a subsequent patch.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 09:53:15 +09:00
Jonathan Tan 99bcb883cb transport: allow skipping of ref listing
The get_refs_via_connect() function both performs the handshake
(including determining the protocol version) and obtaining the list of
remote refs. However, the fetch protocol v2 supports fetching objects
without the listing of refs, so make it possible for the user to skip
the listing by creating a new handshake() function. This will be used in
a subsequent commit.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 09:35:41 +09:00
Matthew DeVore bc5975d24f list-objects-filter: implement filter tree:0
Teach list-objects the "tree:0" filter which allows for filtering
out all tree and blob objects (unless other objects are explicitly
specified by the user). The purpose of this patch is to allow smaller
partial clones.

The name of this filter - tree:0 - does not explicitly specify that
it also filters out all blobs, but this should not cause much confusion
because blobs are not at all useful without the trees that refer to
them.

I also considered only:commits as a name, but this is inaccurate because
it suggests that annotated tags are omitted, but actually they are
included.

The name "tree:0" allows later filtering based on depth, i.e. "tree:1"
would filter out all but the root tree and blobs. In order to avoid
confusion between 0 and capital O, the documentation was worded in a
somewhat round-about way that also hints at this future improvement to
the feature.

Signed-off-by: Matthew DeVore <matvore@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 08:55:00 +09:00
Matthew DeVore cc0b05a4cc list-objects-filter-options: do not over-strbuf_init
The function gently_parse_list_objects_filter is either called with
errbuf=STRBUF_INIT or errbuf=NULL, but that function calls strbuf_init
when errbuf is not NULL. strbuf_init is only necessary if errbuf
contains garbage, and risks a memory leak if errbuf already has a
non-STRBUF_INIT state. It should be the caller's responsibility to make
sure errbuf is not garbage, since garbage content is easily avoidable
with STRBUF_INIT.

Signed-off-by: Matthew DeVore <matvore@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 08:55:00 +09:00
Matthew DeVore 696aa73905 list-objects-filter: use BUG rather than die
In some cases in this file, BUG makes more sense than die. In such
cases, a we get there from a coding error rather than a user error.

'return' has been removed following some instances of BUG since BUG does
not return.

Signed-off-by: Matthew DeVore <matvore@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 08:55:00 +09:00
Matthew DeVore 99c9aa9579 revision: mark non-user-given objects instead
Currently, list-objects.c incorrectly treats all root trees of commits
as USER_GIVEN. Also, it would be easier to mark objects that are
non-user-given instead of user-given, since the places in the code
where we access an object through a reference are more obvious than
the places where we access an object that was given by the user.

Resolve these two problems by introducing a flag NOT_USER_GIVEN that
marks blobs and trees that are non-user-given, replacing USER_GIVEN.
(Only blobs and trees are marked because this mark is only used when
filtering objects, and filtering of other types of objects is not
supported yet.)

This fixes a bug in that git rev-list behaved differently from git
pack-objects. pack-objects would *not* filter objects given explicitly
on the command line and rev-list would filter. This was because the two
commands used a different function to add objects to the rev_info
struct. This seems to have been an oversight, and pack-objects has the
correct behavior, so I added a test to make sure that rev-list now
behaves properly.

Signed-off-by: Matthew DeVore <matvore@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07 08:55:00 +09:00