Граф коммитов

12669 Коммитов

Автор SHA1 Сообщение Дата
Junio C Hamano c692fe2c1e Merge branch 'mp/push-pushoption-config'
The "--push-option=<string>" option to "git push" now defaults to a
list of strings configured via push.pushOption variable.

* mp/push-pushoption-config:
  builtin/push.c: add push.pushOption config
2017-11-06 14:24:30 +09:00
Junio C Hamano b4d658b501 Merge branch 'hv/fetch-moved-submodules-on-demand'
"git fetch --recurse-submodules" now knows that submodules can be
moved around in the superproject in addition to getting updated,
and finds the ones that need to be fetched accordingly.

* hv/fetch-moved-submodules-on-demand:
  submodule: simplify decision tree whether to or not to fetch
  implement fetching of moved submodules
  fetch: add test to make sure we stay backwards compatible
2017-11-06 14:24:29 +09:00
Junio C Hamano 5a74ce22e6 Merge branch 'jc/check-ref-format-oor'
"git check-ref-format --branch @{-1}" bit a "BUG()" when run
outside a repository for obvious reasons; clarify the documentation
and make sure we do not even try to expand the at-mark magic in
such a case, but still call the validation logic for branch names.

* jc/check-ref-format-oor:
  check-ref-format doc: --branch validates and expands <branch>
  check-ref-format --branch: strip refs/heads/ using skip_prefix
  check-ref-format --branch: do not expand @{...} outside repository
2017-11-06 14:24:28 +09:00
Junio C Hamano f113d4bc79 Merge branch 'jc/t5601-copy-workaround'
A (possibly flakey) test fix.

* jc/t5601-copy-workaround:
  t5601: rm the target file of cp that could still be executing
2017-11-06 14:24:27 +09:00
Junio C Hamano e7e456f500 Merge branch 'bc/object-id'
Conversion from uchar[20] to struct object_id continues.

* bc/object-id: (25 commits)
  refs/files-backend: convert static functions to object_id
  refs: convert read_raw_ref backends to struct object_id
  refs: convert peel_object to struct object_id
  refs: convert resolve_ref_unsafe to struct object_id
  worktree: convert struct worktree to object_id
  refs: convert resolve_gitlink_ref to struct object_id
  Convert remaining callers of resolve_gitlink_ref to object_id
  sha1_file: convert index_path and index_fd to struct object_id
  refs: convert reflog_expire parameter to struct object_id
  refs: convert read_ref_at to struct object_id
  refs: convert peel_ref to struct object_id
  builtin/pack-objects: convert to struct object_id
  pack-bitmap: convert traverse_bitmap_commit_list to object_id
  refs: convert dwim_log to struct object_id
  builtin/reflog: convert remaining unsigned char uses to object_id
  refs: convert dwim_ref and expand_ref to struct object_id
  refs: convert read_ref and read_ref_full to object_id
  refs: convert resolve_refdup and refs_resolve_refdup to struct object_id
  Convert check_connected to use struct object_id
  refs: update ref transactions to use struct object_id
  ...
2017-11-06 14:24:27 +09:00
Junio C Hamano cb52b49db5 Merge branch 'ds/find-unique-abbrev-optim'
Optimize the code to find shortest unique prefix of object names.

* ds/find-unique-abbrev-optim:
  sha1_name: minimize OID comparisons during disambiguation
  sha1_name: parse less while finding common prefix
  sha1_name: unroll len loop in find_unique_abbrev_r()
  p4211-line-log.sh: add log --online --raw --parents perf test
2017-11-06 14:24:25 +09:00
Junio C Hamano fb4cd88ad4 Merge branch 'wk/pull-signoff'
"git pull" has been taught to accept "--[no-]signoff" option and
pass it down to "git merge".

* wk/pull-signoff:
  pull: pass --signoff/--no-signoff to "git merge"
2017-11-06 14:24:24 +09:00
Junio C Hamano 5faa27ab05 Merge branch 'pb/bisect-helper'
An early part of piece-by-piece rewrite of "git bisect".

* pb/bisect-helper:
  bisect--helper: `is_expected_rev` & `check_expected_revs` shell function in C
  t6030: explicitly test for bisection cleanup
  bisect--helper: `bisect_clean_state` shell function in C
  bisect--helper: `write_terms` shell function in C
  bisect--helper: rewrite `check_term_format` shell function in C
  bisect--helper: use OPT_CMDMODE instead of OPT_BOOL
2017-11-06 14:24:23 +09:00
Junio C Hamano 130b512e62 Merge branch 'dm/run-command-ignored-hook-advise'
A hook script that is set unexecutable is simply ignored.  Git
notifies when such a file is ignored, unless the message is
squelched via advice.ignoredHook configuration.

* dm/run-command-ignored-hook-advise:
  run-command: add hint when a hook is ignored
2017-11-06 14:24:22 +09:00
Junio C Hamano 728c573803 Merge branch 'ex/deprecate-empty-pathspec-as-match-all'
The final step to make an empty string as a pathspec element
illegal.  We started this by first deprecating and warning a
pathspec that has such an element in 2.11 (Nov 2016).

Hopefully we can merge this down to the 'master' by the end of the
year?  A deprecation warning period that is about 1 year does not
sound too bad.

* ex/deprecate-empty-pathspec-as-match-all:
  pathspec: die on empty strings as pathspec
  t0027: do not use an empty string as a pathspec element
2017-11-06 13:11:29 +09:00
Junio C Hamano e4db47e6a0 Merge branch 'jk/rebase-i-exec-gitdir-fix'
A recent regression in "git rebase -i" that broke execution of git
commands from subdirectories via "exec" insn has been fixed.

* jk/rebase-i-exec-gitdir-fix:
  sequencer: pass absolute GIT_DIR to exec commands
2017-11-06 13:11:28 +09:00
Junio C Hamano 51bb4d62a0 Merge branch 'mh/test-local-canary'
We try to see if somebody runs our test suite with a shell that
does not support "local" like bash/dash does.

* mh/test-local-canary:
  t0000: check whether the shell supports the "local" keyword
2017-11-06 13:11:26 +09:00
Junio C Hamano da7996aaf7 Merge branch 'js/submodule-in-excluded'
"git status --ignored -u" did not stop at a working tree of a
separate project that is embedded in an ignored directory and
listed files in that other project, instead of just showing the
directory itself as ignored.

* js/submodule-in-excluded:
  status: do not get confused by submodules in excluded directories
2017-11-06 13:11:26 +09:00
Junio C Hamano a823e3a7fc Merge branch 'jk/misc-resolve-ref-unsafe-fixes'
Some codepaths did not check for errors when asking what branch the
HEAD points at, which have been fixed.

* jk/misc-resolve-ref-unsafe-fixes:
  worktree: handle broken symrefs in find_shared_symref()
  log: handle broken HEAD in decoration check
  remote: handle broken symrefs
  test-ref-store: avoid passing NULL to printf
2017-11-06 13:11:24 +09:00
Junio C Hamano 7a55427094 Merge branch 'jk/diff-color-moved-fix'
The experimental "color moved lines differently in diff output"
feature was buggy around "ignore whitespace changes" edges, whihch
has been corrected.

* jk/diff-color-moved-fix:
  diff: handle NULs in get_string_hash()
  diff: fix whitespace-skipping with --color-moved
  t4015: test the output of "diff --color-moved -b"
  t4015: check "negative" case for "-w --color-moved"
  t4015: refactor --color-moved whitespace test
2017-11-06 13:11:23 +09:00
Junio C Hamano 36625e219d Merge branch 'kd/auto-col-with-pager-fix'
"auto" as a value for the columnar output configuration ought to
judge "is the output consumed by humans?" with the same criteria as
"auto" for coloured output configuration, i.e. either the standard
output stream is going to tty, or a pager is in use.  We forgot the
latter, which has been fixed.

* kd/auto-col-with-pager-fix:
  column: do not include pager.c
  column: show auto columns when pager is active
2017-11-06 13:11:22 +09:00
Jacob Keller 09d7b6c6fa sequencer: pass absolute GIT_DIR to exec commands
When we replaced the old shell script based interactive rebase in
commmit 18633e1a22 ("rebase -i: use the rebase--helper builtin",
2017-02-09) we introduced a regression of functionality in that the
GIT_DIR would be sent to the environment of the exec command as-is.

This generally meant that it would be passed as "GIT_DIR=.git", which
causes problems for any exec command that wants to run git commands in
a subdirectory.

This isn't a very large regression, since it is not that likely that the
exec command will run a git command, and even less likely that it will
need to do so in a subdir. This regression was discovered by a build
system which uses git-describe to find the current version of the build
system, and happened to do so from the src/ sub directory of the
project.

Fix this by passing in the absolute path of the git directory into the
child environment.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02 10:53:23 +09:00
Michael Haggerty 01d3a526ad t0000: check whether the shell supports the "local" keyword
Add a test balloon to see if we get complaints from anybody who is
using a shell that doesn't support the "local" keyword. If so, this
test can be reverted. If not, we might want to consider using "local"
in shell code throughout the git code base.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-31 11:41:39 +09:00
Junio C Hamano 4e40fb302e Merge branch 'mh/ref-locking-fix'
Transactions to update multiple references that involves a deletion
was quite broken in an error codepath and did not abort everything
correctly.

* mh/ref-locking-fix:
  files_transaction_prepare(): fix handling of ref lock failure
  t1404: add a bunch of tests of D/F conflicts
2017-10-26 12:29:23 +09:00
Johannes Schindelin fadb4820c4 status: do not get confused by submodules in excluded directories
We meticulously pass the `exclude` flag to the `treat_directory()`
function so that we can indicate that files in it are excluded rather
than untracked when recursing.

But we did not yet treat submodules the same way.

Because of that, `git status --ignored --untracked` with a submodule
`submodule` in a gitignored `tracked/` would show the submodule in the
"Untracked files" section, e.g.

	On branch master
	Untracked files:
	  (use "git add <file>..." to include in what will be committed)

		tracked/submodule/

	Ignored files:
	  (use "git add -f <file>..." to include in what will be committed)

		tracked/submodule/initial.t

Instead, we would want it to show the submodule in the "Ignored files"
section:

	On branch master
	Ignored files:
	  (use "git add -f <file>..." to include in what will be committed)

		tracked/submodule/

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-26 11:29:06 +09:00
Michael Haggerty da5267f1b6 files_transaction_prepare(): fix handling of ref lock failure
Since dc39e09942 (files_ref_store: use a transaction to update packed
refs, 2017-09-08), failure to lock a reference has been handled
incorrectly by `files_transaction_prepare()`. If
`lock_ref_for_update()` fails in the lock-acquisition loop of that
function, it sets `ret` then breaks out of that loop. Prior to
dc39e09942, that was OK, because the only thing following the loop was
the cleanup code. But dc39e09942 added another blurb of code between
the loop and the cleanup. That blurb sometimes resets `ret` to zero,
making the cleanup code think that the locking was successful.

Specifically, whenever

* One or more reference deletions have been processed successfully in
  the lock-acquisition loop. (Processing the first such reference
  causes a packed-ref transaction to be initialized.)

* Then `lock_ref_for_update()` fails for a subsequent reference. Such
  a failure can happen for a number of reasons, such as the old SHA-1
  not being correct, lock contention, etc. This causes a `break` out
  of the lock-acquisition loop.

* The `packed-refs` lock is acquired successfully and
  `ref_transaction_prepare()` succeeds for the packed-ref transaction.
  This has the effect of resetting `ret` back to 0, and making the
  cleanup code think that lock acquisition was successful.

In that case, any reference updates that were processed prior to
breaking out of the loop would be carried out (loose and packed), but
the reference that couldn't be locked and any subsequent references
would silently be ignored.

This can easily cause data loss if, for example, the user was trying
to push a new name for an existing branch while deleting the old name.
After the push, the branch could be left unreachable, and could even
subsequently be garbage-collected.

This problem was noticed in the context of deleting one reference and
creating another in a single transaction, when the two references D/F
conflict with each other, like

    git update-ref --stdin <<EOF
    delete refs/foo
    create refs/foo/bar HEAD
    EOF

This triggers the above bug because the deletion is processed
successfully for `refs/foo`, then the D/F conflict causes
`lock_ref_for_update()` to fail when `refs/foo/bar` is processed. In
this case the transaction *should* fail, but instead it causes
`refs/foo` to be deleted without creating `refs/foo`. This could
easily result in data loss.

The fix is simple: instead of just breaking out of the loop, jump
directly to the cleanup code. This fixes some tests in t1404 that were
added in the previous commit.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-25 15:08:26 +09:00
Michael Haggerty 2e9de01aa0 t1404: add a bunch of tests of D/F conflicts
It is currently not allowed, in a single transaction, to add one
reference and delete another reference if the two reference names D/F
conflict with each other (e.g., like `refs/foo/bar` and `refs/foo`).
The reason is that the code would need to take locks

    $GIT_DIR/refs/foo.lock
    $GIT_DIR/refs/foo/bar.lock

But the latter lock couldn't coexist with the loose reference file

    $GIT_DIR/refs/foo

, because `$GIT_DIR/refs/foo` cannot be both a directory and a file at
the same time (hence the name "D/F conflict).

Add a bunch of tests that we cleanly reject such transactions.

In fact, many of the new tests currently fail. They will be fixed in
the next commit along with an explanation.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-25 15:08:26 +09:00
Marius Paliga d8052750c5 builtin/push.c: add push.pushOption config
Push options need to be given explicitly, via the command line as "git
push --push-option <option>".  Add the config option push.pushOption,
which is a multi-valued option, containing push options that are sent
by default.

When push options are set in the lower-priority configulation file
(e.g. /etc/gitconfig, or $HOME/.gitconfig), they can be unset later in
the more specific repository config by the empty string.

Add tests and update documentation as well.

Signed-off-by: Marius Paliga <marius.paliga@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-24 09:57:54 +09:00
Jeff King cc61cf465f test-ref-store: avoid passing NULL to printf
It's possible for resolve_ref_unsafe() to return NULL (e.g.,
if we are reading and the ref does not exist), in which case
we'll pass NULL to printf. On glibc systems this produces
"(null)", but on others it may segfault.

The tests don't expect any such case, but if we ever did
trigger this, we would prefer to cleanly fail the test with
unexpected input rather than segfault. Let's manually
replace NULL with "(null)". The exact value doesn't matter,
as it won't match any possible ref the caller could expect
(and anyway, the exit code of the program will tell whether
"ref" is valid or not).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21 21:29:00 +09:00
Jeff King da58318e76 diff: fix whitespace-skipping with --color-moved
The code for handling whitespace with --color-moved
represents partial strings as a pair of pointers. There are
two possible conventions for the end pointer:

  1. It points to the byte right after the end of the
     string.

  2. It points to the final byte of the string.

But we seem to use both conventions in the code:

  a. we assign the initial pointers from the NUL-terminated
     string using (1)

  b. we eat trailing whitespace by checking the second
     pointer for isspace(), which needs (2)

  c. the next_byte() function checks for end-of-string with
     "if (cp > endp)", which is (2)

  d. in next_byte() we skip past internal whitespace with
     "while (cp < end)", which is (1)

This creates fewer bugs than you might think, because there
are some subtle interactions. Because of (a) and (c), we
always return the NUL-terminator from next_byte(). But all
of the callers of next_byte() happen to handle that
gracefully.

Because of the mismatch between (d) and (c), next_byte()
could accidentally return a whitespace character right at
endp. But because of the interaction of (a) and (b), we fail
to actually chomp trailing whitespace, meaning our endp
_always_ points to a NUL, canceling out the problem.

But that does leave (b) as a real bug: when ignoring
whitespace only at the end-of-line, we don't correctly trim
it, and fail to match up lines.

We can fix the whole thing by moving consistently to one
convention. Since convention (1) is idiomatic in our code
base, we'll pick that one.

The existing "-w" and "-b" tests continue to pass, and a new
"--ignore-space-at-eol" shows off the breakage we're fixing.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21 21:12:35 +09:00
Jeff King d5aae1f7cd t4015: test the output of "diff --color-moved -b"
Commit fa5ba2c1dd (diff: fix infinite loop with
--color-moved --ignore-space-change, 2017-10-12) added a
test to make sure that "--color-moved -b" doesn't run
forever, but the test in question doesn't actually have any
moved lines in it.

Let's scrap that test and add a variant of the existing
"--color-moved -w" test, but this time we'll check that we
find the move with whitespace changes, but not arbitrary
whitespace additions.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21 21:11:08 +09:00
Jeff King 83de23cfea t4015: check "negative" case for "-w --color-moved"
We test that lines with whitespace changes are not found by
"--color-moved" by default, but are found if "-w" is added.
Let's add one more twist: a line that has non-whitespace
changes should not be marked as a pure move.

This is perhaps an obvious case for us to get right (and we
do), but as we add more whitespace tests, they will form a
pattern of "make sure this case is a move and this other
case is not".

Note that we have to add a line to our moved block, since
having a too-small block doesn't trigger the "moved"
heuristics.  And we also add a line of context to ensure
that there's more context lines than moved lines (so the
diff shows us moving the lines up, rather than moving the
context down).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21 21:11:04 +09:00
Jeff King ecd512582c t4015: refactor --color-moved whitespace test
In preparation for testing several different whitespace
options, let's split out the setup and cleanup steps of the
whitespace test.

While we're here, let's also switch to using "<<-" to indent
our here-documents properly, and use q_to_tab to more
explicitly mark where we expect whitespace to appear.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21 21:10:58 +09:00
Junio C Hamano 1c0b983a77 Merge branch 'jk/ref-filter-colors-fix'
This is the "theoretically more correct" approach of simply
stepping back to the state before plumbing commands started paying
attention to "color.ui" configuration variable.

Let's run with this one.

* jk/ref-filter-colors-fix:
  tag: respect color.ui config
  Revert "color: check color.ui in git_default_config()"
  Revert "t6006: drop "always" color config tests"
  Revert "color: make "always" the same as "auto" in config"
2017-10-18 10:19:08 +09:00
Junio C Hamano 7c3f847aad check-ref-format --branch: do not expand @{...} outside repository
Running "git check-ref-format --branch @{-1}" from outside any
repository produces

	$ git check-ref-format --branch @{-1}
	BUG: environment.c:182: git environment hasn't been setup

This is because the expansion of @{-1} must come from the HEAD reflog,
which involves opening the repository.  @{u} and @{push} (which are
more unusual because they typically would not expand to a local
branch) trigger the same assertion.

This has been broken since day one.  Before v2.13.0-rc0~48^2
(setup_git_env: avoid blind fall-back to ".git", 2016-10-02), the
breakage was more subtle: Git would read reflogs from ".git" within
the current directory even if it was not a valid repository.  Usually
that is harmless because Git is not being run from the root directory
of an invalid repository, but in edge cases such accesses can be
confusing or harmful.  Since v2.13.0, the problem is easier to
diagnose because Git aborts with a BUG message.

Erroring out is the right behavior: when asked to interpret a branch
name like "@{-1}", there is no reasonable answer in this context.
But we should print a message saying so instead of an assertion failure.

We do not forbid "check-ref-format --branch" from outside a repository
altogether because it is ok for a script to pre-process branch
arguments without @{...} in such a context.  For example, with
pre-2.13 Git, a script that does

	branch='master'; # default value
	parse_options
	branch=$(git check-ref-format --branch "$branch")

to normalize an optional branch name provided by the user would work
both inside a repository (where the user could provide '@{-1}') and
outside (where '@{-1}' should not be accepted).

So disable the "expand @{...}" half of the feature when run outside a
repository, but keep the check of the syntax of a proposed branch
name. This way, when run from outside a repository, "git
check-ref-format --branch @{-1}" will gracefully fail:

	$ git check-ref-format --branch @{-1}
	fatal: '@{-1}' is not a valid branch name

and "git check-ref-format --branch master" will succeed as before:

	$ git check-ref-format --branch master
	master

restoring the usual pre-2.13 behavior.

[jn: split out from a larger patch; moved conditional to
 strbuf_check_branch_ref instead of its caller; fleshed out commit
 message; some style tweaks in tests]

Reported-by: Marko Kungla <marko.kungla@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-18 06:11:09 +09:00
Jeff King b521fd1228 tag: respect color.ui config
Since 11b087adfd (ref-filter: consult want_color() before
emitting colors, 2017-07-13), we expect that setting
"color.ui" to "always" will enable color tag formats even
without a tty.  As that commit was built on top of
136c8c8b8f (color: check color.ui in git_default_config(),
2017-07-13) from the same series, we didn't need to touch
tag's config parsing at all.

However, since we reverted 136c8c8b8f, we now need to
explicitly call git_color_default_config() to make this
work.

Let's do so, and also restore the test dropped in 0c88bf5050
(provide --color option for all ref-filter users,
2017-10-03). That commit swapped out our "color.ui=always"
test for "--color" in preparation for "always" going away.
But since it is here to stay, we should test both cases.

Note that for-each-ref also lost its color.ui support as
part of reverting 136c8c8b8f. But as a plumbing command, it
should _not_ respect the color.ui config. Since it also
gained a --color option in 0c88bf5050, that's the correct
way to ask it for color. We'll continue to test that, and
confirm that "color.ui" is not respected.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 15:10:13 +09:00
Jeff King 33c643bb08 Revert "color: check color.ui in git_default_config()"
This reverts commit 136c8c8b8f.

That commit was trying to address a bug caused by 4c7f1819b3
(make color.ui default to 'auto', 2013-06-10), in which
plumbing like diff-tree defaulted to "auto" color, but did
not respect a "color.ui" directive to disable it.

But it also meant that we started respecting "color.ui" set
to "always". This was a known problem, but 4c7f1819b3 argued
that nobody ought to be doing that. However, that turned out
to be wrong, and we got a number of bug reports related to
"add -p" regressing in v2.14.2.

Let's revert 136c8c8b8, fixing the regression to "add -p".
This leaves the problem from 4c7f1819b3 unfixed, but:

  1. It's a pretty obscure problem in the first place. I
     only noticed it while working on the color code, and we
     haven't got a single bug report or complaint about it.

  2. We can make a more moderate fix on top by respecting
     "never" but not "always" for plumbing commands. This
     is just the minimal fix to go back to the working state
     we had before v2.14.2.

Note that this isn't a pure revert. We now have a test in
t3701 which shows off the "add -p" regression. This can be
flipped to success.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 15:09:52 +09:00
Jeff King 1d4b12fe7c Revert "t6006: drop "always" color config tests"
This reverts commit c5bdfe677c.

That commit was done primarily to prepare for the weakening
of "always" in 6be4595edb (color: make "always" the same as
"auto" in config, 2017-10-03). But since we've now reverted
6be4595edb, there's no need for us to remove "-c
color.ui=always" from the tests. And in fact it's a good
idea to restore these tests, to make sure that "always"
continues to work.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 15:09:26 +09:00
Jeff King 2c1acdf6c9 Revert "color: make "always" the same as "auto" in config"
This reverts commit 6be4595edb.

That commit weakened the "always" setting of color config so
that it acted as "auto". This was meant to solve regressions
in v2.14.2 in which setting "color.ui=always" in the on-disk
config broke scripts like add--interactive, because the
plumbing diff commands began to generate color output.

This was due to 136c8c8b8f (color: check color.ui in
git_default_config(), 2017-07-13), which was in turn trying
to fix issues caused by 4c7f1819b3 (make color.ui default to
'auto', 2013-06-10). But in weakening "always", we created
even more problems, as people expect to be able to use "git
-c color.ui=always" to force color (especially because some
commands don't have their own --color flag). We can fix that
by special-casing the command-line "-c", but now things are
getting pretty confusing.

Instead of piling hacks upon hacks, let's start peeling off
the hacks. The first step is dropping the weakening of
"always", which this revert does.

Note that we could actually revert the whole series merged
in by da15b78e52. Most of that
series consists of preparations to the tests to handle the
weakening of "-c color.ui=always". But it's worth keeping
for a few reasons:

  - there are some other preparatory cleanups, like
    e433749d86 (test-terminal: set TERM=vt100, 2017-10-03)

  - it adds "--color" options more consistently in
    0c88bf5050 (provide --color option for all ref-filter
    users, 2017-10-03)

  - some of the cases dropping "-c" end up being more robust
    and realistic tests, as in 01c94e9001 (t7508: use
    test_terminal for color output, 2017-10-03)

  - the preferred tool for overriding config is "--color",
    and we should be modeling that consistently

We can individually revert the few commits necessary to
restore some useful tests (which will be done on top of this
patch).

Note that this isn't a pure revert; we'll keep the test
added in t3701, but mark it as failure for now.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 15:08:51 +09:00
Junio C Hamano 433d62fea9 Merge branch 'jk/ui-color-always-to-auto-maint' (early part) into jk/ref-filter-colors-fix-maint
* 'jk/ui-color-always-to-auto-maint' (early part):
  color: make "always" the same as "auto" in config
  provide --color option for all ref-filter users
  t3205: use --color instead of color.branch=always
  t3203: drop "always" color test
  t6006: drop "always" color config tests
  t7502: use diff.noprefix for --verbose test
  t7508: use test_terminal for color output
  t3701: use test-terminal to collect color output
  t4015: prefer --color to -c color.diff=always
  test-terminal: set TERM=vt100
2017-10-17 15:08:31 +09:00
Junio C Hamano cff48ccf2a t5601: rm the target file of cp that could still be executing
"while sh t5601-clone.sh; do :; done" seems to fail sporadically at
around test #45 where fake-ssh wrapper is copied create plink.exe,
with an error message that says the "text is busy".

I have a mild suspicion that the root cause of the bug is that the
fake SSH process from the previous test is still running by the time
the next test wants to replace it with a new binary, but in the
meantime, removing the target that could still be executing before
copying something else over seems to work it around.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 14:04:43 +09:00
Junio C Hamano 91ccfb8517 Merge branch 'sb/diff-color-move'
A recently added "--color-moved" feature of "diff" fell into
infinite loop when ignoring whitespace changes, which has been
fixed.

* sb/diff-color-move:
  diff: fix infinite loop with --color-moved --ignore-space-change
2017-10-17 13:29:19 +09:00
Kevin Daudt b2d3fd287b column: show auto columns when pager is active
When columns are set to automatic for git tag and the output is
paginated by git, the output is a single column instead of multiple
columns.

Standard behaviour in git is to honor auto values when the pager is
active, which happens for example with commands like git log showing
colors when being paged.

Since ff1e72483 (tag: change default of `pager.tag` to "on",
2017-08-02), the pager has been enabled by default, exposing this
problem to more people.

finalize_colopts in column.c only checks whether the output is a TTY to
determine if columns should be enabled with columns set to auto. Also
check if the pager is active.

Adding a test for git column is possible but requires some care to work
around a race on stdin. See commit 18d8c2693 (test_terminal: redirect
child process' stdin to a pty, 2015-08-04). Test git tag instead, since
that does not involve stdin, and since that was the original motivation
for this patch.

Helped-by: Rafael Ascensão <rafa.almas@gmail.com>
Signed-off-by: Kevin Daudt <me@ikke.info>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 12:16:45 +09:00
Heiko Voigt c68f837576 implement fetching of moved submodules
We store the changed submodules paths to calculate which submodule needs
fetching. This does not work for moved submodules since their paths do
not stay the same in case of a moved submodules. In case of new
submodules we do not have a path in the current checkout, since they
just appeared in this fetch.

It is more general to collect the submodule names for changes instead of
their paths to include the above cases. If we do not have a
configuration for a gitlink we rely on constructing a default name from
the path if a git repository can be found at its path. We skip
non-configured gitlinks whose default name collides with a configured
one.

With the change described above we implement 'on-demand' fetching of
changes in moved submodules.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 10:27:18 +09:00
Jeff King fa5ba2c1dd diff: fix infinite loop with --color-moved --ignore-space-change
The --color-moved code uses next_byte() to advance through
the blob contents. When the user has asked to ignore
whitespace changes, we try to collapse any whitespace change
down to a single space.

However, we enter the conditional block whenever we see the
IGNORE_WHITESPACE_CHANGE flag, even if the next byte isn't
whitespace.

This means that the combination of "--color-moved and
--ignore-space-change" was completely broken. Worse, because
we return from next_byte() without having advanced our
pointer, the function makes no forward progress in the
buffer and loops infinitely.

Fix this by entering the conditional only when we actually
see whitespace. We can apply this also to the
IGNORE_WHITESPACE change. That code path isn't buggy
(because it falls through to returning the next
non-whitespace byte), but it makes the logic more clear if
we only bother to look at whitespace flags after seeing that
the next byte is whitespace.

Reported-by: Orgad Shaneh <orgads@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16 11:57:45 +09:00
brian m. carlson 49e61479be refs: convert resolve_ref_unsafe to struct object_id
Convert resolve_ref_unsafe to take a pointer to struct object_id by
converting one remaining caller to use struct object_id, removing the
temporary NULL pointer check in expand_ref, converting the declaration
and definition, and applying the following semantic patch:

@@
expression E1, E2, E3, E4;
@@
- resolve_ref_unsafe(E1, E2, E3.hash, E4)
+ resolve_ref_unsafe(E1, E2, &E3, E4)

@@
expression E1, E2, E3, E4;
@@
- resolve_ref_unsafe(E1, E2, E3->hash, E4)
+ resolve_ref_unsafe(E1, E2, E3, E4)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16 11:05:51 +09:00
brian m. carlson b420d90980 refs: convert peel_ref to struct object_id
Convert peel_ref (and its corresponding backend) to struct object_id.

This transformation was done with an update to the declaration,
definition, comments, and test helper and the following semantic patch:

@@
expression E1, E2;
@@
- peel_ref(E1, E2.hash)
+ peel_ref(E1, &E2)

@@
expression E1, E2;
@@
- peel_ref(E1, E2->hash)
+ peel_ref(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16 11:05:51 +09:00
brian m. carlson ae077771b0 refs: convert update_ref and refs_update_ref to use struct object_id
Convert update_ref, refs_update_ref, and write_pseudoref to use struct
object_id.  Update the existing callers as well.  Remove update_ref_oid,
as it is no longer needed.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16 11:05:50 +09:00
brian m. carlson 2616a5e508 refs: convert delete_ref and refs_delete_ref to struct object_id
Convert delete_ref and refs_delete_ref to take a pointer to struct
object_id.  Update the documentation accordingly, including referring to
null_oid in lowercase, as it is not a #define constant.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16 11:05:50 +09:00
W. Trevor King 3a4d2c7437 pull: pass --signoff/--no-signoff to "git merge"
merge can take --signoff, but without pull passing --signoff down, it
is inconvenient to use; allow 'pull' to take the option and pass it
through.

The order of options in merge-options.txt is mostly alphabetical by
long option since 7c85d274 (Documentation/merge-options.txt: order
options in alphabetical groups, 2009-10-22).  The long-option bit
didn't make it into the commit message, but it's under the fold in
[1].  I've put --signoff between --log and --stat to preserve the
alphabetical order.

[1]: https://public-inbox.org/git/87iqe7zspn.fsf@jondo.cante.net/

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-13 10:47:36 +09:00
Derrick Stolee 1af8b01309 p4211-line-log.sh: add log --online --raw --parents perf test
Add a new perf test for testing the performance of log while computing
OID abbreviations. Using --oneline --raw and --parents options maximizes
the number of OIDs to abbreviate while still spending some time computing
diffs.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-13 09:25:45 +09:00
Junio C Hamano 97cb362262 Merge branch 'sb/test-cmp-expect-actual'
Test tweak.

* sb/test-cmp-expect-actual:
  tests: fix diff order arguments in test_cmp
2017-10-11 14:52:23 +09:00
Junio C Hamano bab02c6e63 Merge branch 'jk/refs-df-conflict'
An ancient bug that made Git misbehave with creation/renaming of
refs has been fixed.

* jk/refs-df-conflict:
  refs_resolve_ref_unsafe: handle d/f conflicts for writes
  t3308: create a real ref directory/file conflict
2017-10-11 14:52:23 +09:00
Junio C Hamano 6defdc9fe8 Merge branch 'rs/fsck-null-return-from-lookup'
Improve behaviour of "git fsck" upon finding a missing object.

* rs/fsck-null-return-from-lookup:
  fsck: handle NULL return of lookup_blob() and lookup_tree()
2017-10-11 14:52:23 +09:00
Junio C Hamano b03cd16613 Merge branch 'tb/show-trailers-in-ref-filter'
"git for-each-ref --format=..." learned a new format element,
%(trailers), to show only the commit log trailer part of the log
message.

* tb/show-trailers-in-ref-filter:
  ref-filter.c: parse trailers arguments with %(contents) atom
  ref-filter.c: use trailer_opts to format trailers
  t6300: refactor %(trailers) tests
  doc: use "`<literal>`"-style quoting for literal strings
  doc: 'trailers' is the preferred way to format trailers
  t4205: unfold across multiple lines
2017-10-11 14:52:22 +09:00