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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There was a significant inconsistency in the various parts of the API
used in merge-recursive; many places used a pair of (oid, mode) to track
file version/contents, while other parts used a diff_filespec (which
have an oid and mode embedded in it). This inconsistency caused lots of
places to need to pack and unpack data to call into other functions.
This has been the subject of some past cleanups (see e.g. commit
0270a07ad0b2 ("merge-recursive: remove final remaining caller of
merge_file_one()", 2018-09-19)), but let's just remove the underlying
mess altogether by switching to use diff_filespec.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead of passing various bits and pieces of 'ci', just pass it
directly.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We previously tracked the branch associated with a rename in a separate
field in rename_conflict_info, but since it is directly associated with
the rename it makes more sense to move it into the rename struct.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The ren1_other and ren2_other fields were synthesized from information
in ren1->src_entry and ren2->src_entry. Since we already have the
necessary information in ren1 and ren2, just use those.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The rename_conflict_info struct used both a pair and a stage_data which
were taken from a rename struct. Just use the original rename struct.
This will also allow us to start making other simplifications to the
code.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These structs are related and reference each other, so move them
together to make it easier for folks to determine what they hold and
what their purpose is.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We used a couple different names, but used 'ci' the most. Use the same
variable name throughout for a little extra consistency.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since we want to replace oid,mode pairs with a single diff_filespec,
we will soon want to be able to use the names 'o', 'a', and 'b' for
the three different file versions. Rename some local variables in
blob_unchanged() that would otherwise conflict.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the previous commit, we noted that several places throughout merge
recursive both had a reason to use 'o'; some for a merge_options struct,
and others for a diff_filespec struct. Some places had both, forcing
one of the two to be renamed, though the choice was inconsistent. Now
that the merge_options struct has been renamed to 'opt' everywhere, we
can replace the few places that used 'one' for the diff_filespec to 'o'.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The name 'o' was used for the merge_options struct pointer taken by many
functions, but in a few places it was named 'opt'. Several functions
that didn't need merge_options instead used 'o' for a diff_filespec
argument or local. Some functions needed both an inconsistently either
renamed the merge_options to 'opt' or the diff_filespec to 'one'. I
want to remove the weird split in the codebase between using a
diff_filespec and a pair of (oid,mode) values in favor of using a
diff_filespec everywhere, but that dramatically increases the number of
cases where we want to use 'o' as a diff_filespec. Rename the
merge_options argument to 'opt' to make room.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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struct diff_filespec defines mode to be an 'unsigned short'. Several
other places in the API which we'd like to interact with using a
diff_filespec used a plain unsigned (or unsigned int). This caused
problems when taking addresses, so switch to unsigned short.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running a command like "git show" or "git diff" in a partial clone,
batch all missing blobs to be fetched as one request.
This is similar to c0c578b33c ("unpack-trees: batch fetching of missing
blobs", 2017-12-08), but for another command.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The helper 'hex2oct' is used to convert base-16 encoded data into a
base-8 binary form, and is useful for preparing data for commands that
accept input in a binary format, such as 'git hash-object', via
'printf'.
This helper is defined identically in three separate places throughout
't'. Move the definition to test-lib-function.sh, so that it can be used
in new test suites, and its definition is not redundant.
This will likewise make our job easier in the subsequent commit, which
also uses 'hex2oct'.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The following patches in this series want to handle the progress bar's
title and changing parts (i.e. the counter and the optional percentage
and throughput combined) differently, and need to know the length
of the changing parts of the previously displayed progress bar.
To prepare for those changes assemble the changing parts in a separate
strbuf kept in 'struct progress' before printing.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ever since the progress infrastructure was introduced in 96a02f8f6d
(common progress display support, 2007-04-18), display_progress() has
returned an int, telling callers whether it updated the progress bar
or not. However, this is:
- useless, because over the last dozen years there has never been a
single caller that cared about that return value.
- not quite true, because it doesn't print a progress bar when
running in the background, yet it returns 1; see 85cb8906f0
(progress: no progress in background, 2015-04-13).
The related display_throughput() function returned void already upon
its introduction in cf84d51c43 (add throughput to progress display,
2007-10-30).
Let's make display_progress() return void, too. While doing so
several return statements in display() become unnecessary, remove
them.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Wrap usage line at '<tagname>'. Also, wrap strings with '\n' at the end
of string fragments instead of at the beginning of the next string
fragment.
Convert a space-indent into a tab-indent for style.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 'ci/test-documentation.sh' we save the standard error of 'make
doc', and, in an attempt to make sure that neither AsciiDoc nor
Asciidoctor printed any warnings, we check the emptiness of the
resulting file with '! test -s stderr.log'. This check has never
actually worked, because in our 'ci/*' build scripts we rely on 'set
-e' aborting the build job when a command exits with error, and,
unfortunately, the combination of the two doesn't work as intended.
According to POSIX [1]:
"The -e setting shall be ignored when executing [...] a pipeline
beginning with the ! reserved word" [2]
Watch and learn:
$ echo unexpected >file
$ ( set -e; ! test -s file ; echo "should not reach this" ) ; echo $?
should not reach this
0
This is why we haven't noticed the warnings from Asciidoctor that were
fixed in the first patches of this patch series, though some of them
were already there in the build of v2.18.0-rc0 [3].
Check the emptiness of that file with 'test ! -s' instead, which works
properly with 'set -e':
$ ( set -e; test ! -s file ; echo "should not reach this" ) ; echo $?
1
Furthermore, dump the contents of that file to the log for our
convenience, so if it were to unexpectedly end up being non-empty,
then we wouldn't have to scroll through all that long build log
looking for warnings, but could see them right away near the end of
the log.
Note that we are only really interested in the standard error of
AsciiDoc and Asciidoctor, but by saving the stderr of 'make doc' we
also save any error output from the make rules. Currently there is
only one such line: we build the docs with Asciidoctor right after a
'make clean', meaning that 'make USE_ASCIIDOCTOR=1 doc' always starts
with running 'GIT-VERSION-GEN', which in turn prints the version to
stderr. A 'sed' command was supposed to remove this version line to
prevent it from triggering that (previously defunct) emptiness check,
but, unfortunately, this command doesn't work as intended, either,
because it leaves the file to be checked intact, but that defunct
emptiness check hid this issue, too... Furthermore, in the near
future there will be an other line on stderr, because commit
9a71722b4d (Doc: auto-detect changed build flags, 2019-03-17) in the
currently cooking branch 'ma/doc-diff-doc-vs-doctor-comparison' will
print "* new asciidoc flags" at the beginning of both 'make doc'
invokations.
Extend that 'sed' command to remove this line, too, wrap it in a
helper function so the output of both 'make doc' is filtered the same
way, and change its invokation to actually write the logfile to be
checked.
[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#set
[2] POSIX doesn't discuss the meaning of '! cmd' in case of simple
commands, but it defines that "A pipeline is a sequence of one or
more commands separated by the control operator '|'", so
apparently a simple command is considered as pipeline as well.
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_02
[3] https://travis-ci.org/git/git/jobs/385932007#L1463
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The recent release of Asciidoctor v2.0.0 broke our documentation
build job on Travis CI, where we 'gem install asciidoctor', which
always brings us the latest and (supposedly) greatest. Alas, we are
not ready for that just yet, because it removed support for DocBook
4.5, and we have been requiring that particular DocBook version to
build 'user-manual.xml' with Asciidoctor, resulting in:
ASCIIDOC user-manual.xml
asciidoctor: FAILED: missing converter for backend 'docbook45'. Processing aborted.
Use --trace for backtrace
make[1]: *** [user-manual.xml] Error 1
Unfortunately, we can't simply switch to DocBook 5 right away, as
doing so leads to validation errors from 'xmlto', and working around
those leads to yet another errors... [1]
So let's stick with Asciidoctor v1.5.8 (latest stable release before
v2.0.0) in our documentation build job on Travis CI for now, until we
figure out how to deal with the fallout from Asciidoctor v2.0.0.
[1] https://public-inbox.org/git/20190324162131.GL4047@pobox.com/
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since commit ef0cc1df90f6b ("send-email: also pick up cc addresses from
-by trailers") in git version 2.20, git send-email adds to cc list
addresses from all *-by lines. As a side effect a line with
'-Signed-off-by' is now also added to cc. This makes send-email pick
lines from patches that remove patch files from the git repo. This is
common in the Buildroot project that often removes (and adds) patch
files that have 'Signed-off-by' in their patch description part.
Consider only *-by lines that start with [a-z] (case insensitive) to
avoid unrelated addresses in cc.
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Rasmus Villemoes <rv@rasmusvillemoes.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ensure that a FLEX_MALLOC_MEM that uses 'strlen' for its 'len' uses
FLEX_ALLOC_STR instead, since these are equivalent forms.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This patch fixes a quadratic list insertion in rewrite_one() when
pathspec limiting is combined with --parents. What happens is something
like this:
1. We see that some commit X touches the path, so we try to rewrite
its parents.
2. rewrite_one() loops forever, rewriting parents, until it finds a
relevant parent (or hits the root and decides there are none). The
heavy lifting is done by process_parent(), which uses
try_to_simplify_commit() to drop parents.
3. process_parent() puts any intermediate parents into the
&revs->commits list, inserting by commit date as usual.
So if commit X is recent, and then there's a large chunk of history that
doesn't touch the path, we may add a lot of commits to &revs->commits.
And insertion by commit date is O(n) in the worst case, making the whole
thing quadratic.
We tried to deal with this long ago in fce87ae538 (Fix quadratic
performance in rewrite_one., 2008-07-12). In that scheme, we cache the
oldest commit in the list; if the new commit to be added is older, we
can start our linear traversal there. This often works well in practice
because parents are older than their descendants, and thus we tend to
add older and older commits as we traverse.
But this isn't guaranteed, and in fact there's a simple case where it is
not: merges. Imagine we look at the first parent of a merge and see a
very old commit (let's say 3 years old). And on the second parent, as we
go back 3 years in history, we might have many commits. That one
first-parent commit has polluted our oldest-commit cache; it will remain
the oldest while we traverse a huge chunk of history, during which we
have to fall back to the slow, linear method of adding to the list.
Naively, one might imagine that instead of caching the oldest commit,
we'd start at the last-added one. But that just makes some cases faster
while making others slower (and indeed, while it made a real-world test
case much faster, it does quite poorly in the perf test include here).
Fundamentally, these are just heuristics; our worst case is still
quadratic, and some cases will approach that.
Instead, let's use a data structure with better worst-case performance.
Swapping out revs->commits for something else would have repercussions
all over the code base, but we can take advantage of one fact: for the
rewrite_one() case, nobody actually needs to see those commits in
revs->commits until we've finished generating the whole list.
That leaves us with two obvious options:
1. We can generate the list _unordered_, which should be O(n), and
then sort it afterwards, which would be O(n log n) total. This is
"sort-after" below.
2. We can insert the commits into a separate data structure, like a
priority queue. This is "prio-queue" below.
I expected that sort-after would be the fastest (since it saves us the
extra step of copying the items into the linked list), but surprisingly
the prio-queue seems to be a bit faster.
Here are timings for the new p0001.6 for all three techniques across a
few repositories, as compared to master:
master cache-last sort-after prio-queue
--------------------------------------------------------------------------------------------
GIT_PERF_REPO=git.git
0.52(0.50+0.02) 0.53(0.51+0.02) +1.9% 0.37(0.33+0.03) -28.8% 0.37(0.32+0.04) -28.8%
GIT_PERF_REPO=linux.git
20.81(20.74+0.07) 20.31(20.24+0.07) -2.4% 0.94(0.86+0.07) -95.5% 0.91(0.82+0.09) -95.6%
GIT_PERF_REPO=llvm-project.git
83.67(83.57+0.09) 4.23(4.15+0.08) -94.9% 3.21(3.15+0.06) -96.2% 2.98(2.91+0.07) -96.4%
A few items to note:
- the cache-list tweak does improve the bad case for llvm-project.git
that started my digging into this problem. But it performs terribly
on linux.git, barely helping at all.
- the sort-after and prio-queue techniques work well. They approach
the timing for running without --parents at all, which is what you'd
expect (see below for more data).
- prio-queue just barely outperforms sort-after. As I said, I'm not
really sure why this is the case, but it is. You can see it even
more prominently in this real-world case on llvm-project.git:
git rev-list --parents 07ef786652e7 -- llvm/test/CodeGen/Generic/bswap.ll
where prio-queue routinely outperforms sort-after by about 7%. One
guess is that the prio-queue may just be more efficient because it
uses a compact array.
There are three new perf tests:
- "rev-list --parents" gives us a baseline for running with --parents.
This isn't sped up meaningfully here, because the bad case is
triggered only with simplification. But it's good to make sure we
don't screw it up (now, or in the future).
- "rev-list -- dummy" gives us a baseline for just traversing with
pathspec limiting. This gives a lower bound for the next test (and
it's also a good thing for us to be checking in general for
regressions, since we don't seem to have any existing tests).
- "rev-list --parents -- dummy" shows off the problem (and our fix)
Here are the timings for those three on llvm-project.git, before and
after the fix:
Test master prio-queue
------------------------------------------------------------------------------
0001.3: rev-list --parents 2.24(2.12+0.12) 2.22(2.11+0.11) -0.9%
0001.5: rev-list -- dummy 2.89(2.82+0.07) 2.92(2.89+0.03) +1.0%
0001.6: rev-list --parents -- dummy 83.67(83.57+0.09) 2.98(2.91+0.07) -96.4%
Changes in the first two are basically noise, and you can see we
approach our lower bound in the final one.
Note that we can't fully get rid of the list argument from
process_parents(). Other callers do have lists, and it would be hard to
convert them. They also don't seem to have this problem (probably
because they actually remove items from the list as they loop, meaning
it doesn't grow so large in the first place). So this basically just
drops the "cache_ptr" parameter (which was used only by the one caller
we're fixing here) and replaces it with a prio_queue. Callers are free
to use either data structure, depending on what they're prepared to
handle.
Reported-by: Björn Pettersson A <bjorn.a.pettersson@ericsson.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach difftool and mergetool about the Sublime Merge "smerge" command.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When a parent blob already has chunks queued up for blaming, dropping
the blob at the end of one blame step will cause it to get reloaded
right away, doubling the amount of I/O and unpacking when processing a
linear history.
Keeping such parent blobs in memory seems like a reasonable optimization
that should incur additional memory pressure mostly when processing the
merges from old branches.
Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The description of --reset stays true to the first implementation in
438195cced (git-read-tree: add "--reset" flag, 2005-06-09). That is,
--reset discards unmerged entries. Or at least true to the commit
message because I can't be sure about read-tree's behavior regarding
local changes.
But in fcc387db9b (read-tree -m -u: do not overwrite or remove untracked
working tree files., 2006-05-17), it is clear that "-m -u" tries to keep
local changes, while --reset is singled out and will keep overwriting
worktree files. It's not stated in the commit message, but it's obvious
from the patch.
I went this far back not because I had a lot of free time, but because I
did not trust my reading of unpack-trees.c code. So far I think the
related changes in history agree with my understanding of the current
code, that "--reset" loses local changes.
This behavior is not mentioned in git-read-tree.txt, even though
old-timers probably can just guess it based on the "reset" name. Update
git-read-tree.txt about this.
Side note. There's another change regarding --reset that is not
obviously about local changes, b018ff6085 (unpack-trees: fix "read-tree
-u --reset A B" with conflicted index, 2012-12-29). But I'm pretty sure
this is about the first function of --reset, to discard unmerged entries
correctly.
PS. The patch changes one more line than necessary because the first
line uses spaces instead of tab.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To use the singular form of a word, when the option wants the plural
form (and quietly expands it because it thinks it was abbreviated), is
an easy mistake to make, and t5317 contains almost two dozen of them.
However, using abbreviated options in tests is a bit fragile, so we will
disallow use of abbreviated options in our test suite.
In preparation for this change, let's fix
`t5317-pack-objects-filter-objects.sh`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To avoid future ambiguities, we really want to use full option names in
the test suite. `t7525-status-rename.sh` used an abbreviated form of the
`--find-renames` option, though, so let's change that.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We really want to spell out the option in the full form, to avoid any
ambiguity that might be introduced by future patches.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It was probably just an oversight: the `--recurse-submodules` option
puts the term "submodules" in the plural form, not the singular one.
To avoid future problems in case that another option is introduced that
starts with the prefix `--recurse-submodule`, let's just fix this.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This script used abbreviated options, which is unnecessarily fragile.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In quite a few test cases, we were sloppy and used the abbreviation
`--force`, but we really should be precise in what we want to test.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This test wants to run `git rebase` with the `--keep-empty` option, but
it really only spelled out `--keep` and trusted Git's option parsing to
determine that this was a unique abbreviation of the real option.
However, Denton Liu contributed a patch series in
https://public-inbox.org/git/cover.1553354374.git.liu.denton@gmail.com/
that introduces a new `git rebase` option called `--keep-base`, which
makes this previously unique abbreviation non-unique.
Whether this patch series is accepted or not, it is actually a bad
practice to use abbreviated options in our test suite, because of the
issue that those unique option names are not guaranteed to stay unique
in the future.
So let's just not use abbreviated options in the test suite.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When 'git index-pack' is run by 'git clone', its check_objects()
function usually doesn't take long enough to be a concern, but I just
run into a situation where it took about a minute or so: I
inadvertently put some memory pressure on my tiny laptop while cloning
linux.git, and then there was quite a long silence between the
"Resolving deltas" and "Checking connectivity" progress bars.
Show a progress bar during the loop of check_objects() to let the user
know that something is still going on.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Otherwise the error from `git rev-parse` is uselessly
polluting the debug output.
Redirecting to a file, instead of /dev/null, makes it
possible to check that we got the error we expected, so
let's check that too.
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This modernizes a test and makes it more portable.
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Asciidoc uses either one-line or two-line syntax for document/section
titles[1]. The two-line form is used in git-status. Fix a few section
titles in the porcelain v2 section which were inadvertently using
markdown syntax.
[1] http://asciidoc.org/userguide.html#X17
Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Using "+" to continue multiple list items is more tedious and
error-prone than wrapping the entire block with "--" block markers.
When using asciidoctor, the list items after the --date=iso list items
are incorrectly formatted when using "+" continuation. Use "--" block
markers to correctly format the block.
When using asciidoc there is no change in how the content is rendered.
Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add GIT_TR2_* to the whitelist of environment variables that we don't
clear when running the test suite.
This allows us to use the test suite to produce trace2 test data,
which is handy to e.g. write consumers that collate the trace data
itself.
One caveat here is that we produce trace output for not *just* the
tests, but also e.g. from this line in test-lib.sh:
# It appears that people try to run tests without building...
"${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
[...]
I consider this not just OK but a feature. Let's log *all* the git
commands we're going to execute, not just those within
test_expect_*().
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In do_fetch_pack_v2(), the "sought" array is sorted by name, and it is
not subsequently reordered (within the function). Therefore,
receive_wanted_refs() can assume that "sought" is sorted, and can thus
use a binary search when storing wanted-refs retrieved from the server.
Replace the existing linear search with a binary search. This improves
performance significantly when mirror cloning a repository with more
than 1 million refs.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This description line is shown in 'git help -a' and all other commands
description starts with an uppercase character. This just makes that
printout a bit nicer.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach oid_object_info_extended() to support a new flag that inhibits
fetching of missing objects. This is equivalent to setting
fetch_is_missing to 0, calling oid_object_info_extended(), then setting
fetch_if_missing to whatever it was before. Update unpack-trees.c to use
this new flag instead of repeatedly setting fetch_if_missing.
This new flag complicates things slightly in that there are now 2 ways
to do the same thing. But this eliminates the need to repeatedly set a
global variable, and more importantly, allows prefetching to be done in
parallel (in the future); hence, this patch.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In protocol v0, when sending "shallow" lines, the server distinguishes
between lines caused by the remote repo being shallow and lines caused
by client-specified depth settings. Unless "--update-shallow" is
specified, there is a difference in behavior: refs that reach the former
"shallow" lines, but not the latter, are rejected. But in v2, the server
does not, and the client treats all "shallow" lines like lines caused by
client-specified depth settings.
Full restoration of v0 functionality is not possible without protocol
change, but we can implement a heuristic: if we specify any depth
setting, treat all "shallow" lines like lines caused by client-specified
depth settings (that is, unaffected by "--no-update-shallow"), but
otherwise, treat them like lines caused by the remote repo being shallow
(that is, affected by "--no-update-shallow"). This restores most of v0
behavior, except in the case where a client fetches from a shallow
repository with depth settings.
This patch causes a test that previously failed with
GIT_TEST_PROTOCOL_VERSION=2 to pass.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In fetch_pack(), be clearer that there is no shallow information before
the fetch when v2 is used - memset the struct shallow_info to 0 instead
of calling prepare_shallow_info().
This patch is in preparation for a future patch in which a v2 fetch
might call prepare_shallow_info() after shallow info has been retrieved
during the fetch, so I needed to ensure that prepare_shallow_info() is
not called before the fetch.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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jt/fetch-no-update-shallow-in-proto-v2
* jt/test-protocol-version:
t5552: compensate for v2 filtering ref adv.
tests: fix protocol version for overspecifications
t5700: only run with protocol version 1
t5512: compensate for v0 only sending HEAD symrefs
t5503: fix overspecification of trace expectation
tests: always test fetch of unreachable with v0
t5601: check ssh command only with protocol v0
tests: define GIT_TEST_PROTOCOL_VERSION
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When our '.travis.yml' was split into several 'ci/*' scripts [1], the
installation of the 'asciidoctor' gem somehow ended up in
'ci/test-documentation.sh'.
Install it in 'ci/install-dependencies.sh', where we install other
dependencies of the Documentation build job as well (asciidoc,
xmlto).
[1] 657343a602 (travis-ci: move Travis CI code into dedicated scripts,
2017-09-10)
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Asciidoctor versions v1.5.7 or later print the following warning while
building the documentation:
ASCIIDOC technical/protocol-v2.html
asciidoctor: WARNING: protocol-v2.txt: line 38: unterminated listing block
This highlights an issue (even with older Asciidoctor versions) where
the 'Initial Client Request' header is not rendered as a header but in
monospace. I'm not sure what exactly causes this issue and why it's
an issue only with this particular header, but all headers in
'protocol-v2.txt' are written like this:
Initial Client Request
------------------------
i.e. the header itself is indented by a space, and the "underline" is
two characters longer than the header.
Dropping that indentation and making the length of the underline match
the length of the header apparently fixes this issue.
While at it, adjust all other headers 'protocol-v2.txt' as well, to
match the style we use everywhere else.
The page rendered with AsciiDoc doesn't have this formatting issue.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Asciidoctor versions v1.5.7 or later print the following warning while
building the documentation:
ASCIIDOC technical/api-config.html
asciidoctor: WARNING: api-config.txt: line 232: unterminated listing block
This highlight an issue (even with older Asciidoctor versions) where
the length of the '----' lines surrounding a code example don't match,
and the rest of the document is rendered in monospace.
Fix this by making sure that the length of those lines match.
The page rendered with AsciiDoc doesn't have this formatting issue.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Asciidoctor versions v1.5.7 or later print the following warning while
building the documentation:
ASCIIDOC git-diff-tree.xml
asciidoctor: WARNING: diff-format.txt: line 2: unterminated listing block
This highlights an issue (even with older Asciidoctor versions) where
the "Raw output format" header is not rendered as a header, and the
rest of the document is rendered in monospace. This is not caused by
'diff-format.txt' in itself, but rather by 'git-diff-tree.txt'
including 'pretty-formats.txt' and 'diff-format.txt' on subsequent
lines, while the former happens to end with monospace-formatted
example commands.
Fix this by inserting an empty line between the two include::
directives.
The page rendered with AsciiDoc doesn't have this formatting issue.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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