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"git archive" recorded incorrect length in extended pax header in
some corner cases, which has been corrected.
* rs/pax-extended-header-length-fix:
archive-tar: turn length miscalculation warning into BUG
archive-tar: use size_t in strbuf_append_ext_header()
archive-tar: fix pax extended header length calculation
archive-tar: report wrong pax extended header length
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A mechanism to affect the default setting for a (related) group of
configuration variables is introduced.
* ds/feature-macros:
repo-settings: create feature.experimental setting
repo-settings: create feature.manyFiles setting
repo-settings: parse core.untrackedCache
commit-graph: turn on commit-graph by default
t6501: use 'git gc' in quiet mode
repo-settings: consolidate some config settings
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The command line parser learned "--end-of-options" notation; the
standard convention for scripters to have hardcoded set of options
first on the command line, and force the command to treat end-user
input as non-options, has been to use "--" as the delimiter, but
that would not work for commands that use "--" as a delimiter
between revs and pathspec.
* jk/eoo:
gitcli: document --end-of-options
parse-options: allow --end-of-options as a synonym for "--"
revision: allow --end-of-options to end option parsing
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Further clean-up of the initialization code.
* jk/repo-init-cleanup:
config: stop checking whether the_repository is NULL
common-main: delay trace2 initialization
t1309: use short branch name in includeIf.onbranch test
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Test & perf scripts must use unique numeric prefix, but a pair
shared the same number, which is fixed here.
* jk/perf-no-dups:
t/perf: rename duplicate-numbered test script
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The first line of verbose output from each test piece now carries
the test name and number to help scanning with eyeballs.
* sg/show-failed-test-names:
tests: show the test name and number at the start of verbose output
t0000-basic: use realistic test script names in the verbose tests
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The code to write commit-graph over given commit object names has
been made a bit more robust.
* sg/commit-graph-validate:
commit-graph: error out on invalid commit oids in 'write --stdin-commits'
commit-graph: turn a group of write-related macro flags into an enum
t5318-commit-graph: use 'test_expect_code'
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"git checkout" and "git restore" to re-populate the index from a
tree-ish (typically HEAD) did not work correctly for a path that
was removed and then added again with the intent-to-add bit, when
the corresponding working tree file was empty. This has been
corrected.
* vn/restore-empty-ita-corner-case-fix:
restore: add test for deleted ita files
checkout.c: unstage empty deleted ita files
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Test fix.
* sg/do-not-skip-non-httpd-tests:
t: warn against adding non-httpd-specific tests after sourcing 'lib-httpd'
t5703: run all non-httpd-specific tests before sourcing 'lib-httpd.sh'
t5510-fetch: run non-httpd-specific test before sourcing 'lib-httpd.sh'
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Test fix.
* sg/t5510-test-i18ngrep-fix:
t5510-fetch: fix negated 'test_i18ngrep' invocation
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"git grep --recurse-submodules" that looks at the working tree
files looked at the contents in the index in submodules, instead of
files in the working tree.
* mt/grep-submodules-working-tree:
grep: fix worktree case in submodules
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Now that we're confident our pax extended header calculation is correct,
turn the criticality of the assertion up to the maximum, from warning
right up to BUG. Simplify the test, as the stderr comparison step would
not be reached in case the BUG message is triggered.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A pax extended header record starts with a decimal number. Its value
is the length of the whole record, including its own length.
The calculation of that number in strbuf_append_ext_header() is off by
one in case the length of the rest is close to a higher order of
magnitude. This affects paths and link targets a bit shorter than 1000,
10000, 100000 etc. characters -- paths with a length of up to 100 fit
into the tar header and don't need a pax extended header.
The mistake has been present since the function was added by ae64bbc18c
("tar-tree: Introduce write_entry()", 2006-03-25).
Account for digits added to len during the loop and keep incrementing
until we have enough space for len and the rest. The crucial change is
to check against the current value of len before each iteration, instead
of against its value before the loop.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Extended header entries contain a length value that is a bit tricky to
calculate because it includes its own length (number of decimal digits)
as well. We get it wrong in corner cases. Add a check, report wrong
results as a warning and add a test for exercising it.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'feature.experimental' setting includes config options that are
not committed to become defaults, but could use additional testing.
Update the following config settings to take new defaults, and to
use the repo_settings struct if not already using them:
* 'pack.useSparse=true'
* 'fetch.negotiationAlgorithm=skipping'
In the case of fetch.negotiationAlgorithm, the existing logic
would load the config option only when about to use the setting,
so had a die() statement on an unknown string value. This is
removed as now the config is parsed under prepare_repo_settings().
In general, this die() is probably misplaced and not valuable.
A test was removed that checked this die() statement executed.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The feature.manyFiles setting is suitable for repos with many
files in the working directory. By setting index.version=4 and
core.untrackedCache=true, commands such as 'git status' should
improve.
While adding this setting, modify the index version precedence
tests to check how this setting overrides the default for
index.version is unset.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The commit-graph feature has seen a lot of activity in the past
year or so since it was introduced. The feature is a critical
performance enhancement for medium- to large-sized repos, and
does not significantly hurt small repos.
Change the defaults for core.commitGraph and gc.writeCommitGraph
to true so users benefit from this feature by default.
There are several places in the test suite where the environment
variable GIT_TEST_COMMIT_GRAPH is disabled to avoid reading a
commit-graph, if it exists. The config option overrides the
environment, so swap these. Some GIT_TEST_COMMIT_GRAPH assignments
remain, and those are to avoid writing a commit-graph when a new
commit is created.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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t6501-freshen-objects.sh sends the standard error from
'git gc' to a file and verifies that it is empty. This
is intended as a way to ensure no warnings are written
during the operation. However, as the commit-graph is
added as a step to 'git gc', its progress will appear
in the output.
Pass the '-q' argument to avoid a failing test case
when progress is written.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two perf scripts numbered p5600, but with otherwise different
names ("clone-reference" versus "partial-clone"). We store timing
results in files named after the whole script, so internally we don't
get confused between the two. But "aggregate.perl" just prints the test
number for each result, giving multiple entries for "5600.3". It also
makes it impossible to skip one test but not the other with
GIT_SKIP_TESTS.
Let's renumber the one that appeared later (by date -- the source of the
problem is that the two were developed on independent branches). For the
non-perf test suite, our test-lint rule would have complained about this
when the two were merged, but t/perf never learned that trick.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test fix.
* bc/hash-independent-tests-part-4:
t0000: reword comments for "local" test
t: decrease nesting in test_oid_to_path
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Leakfix.
* mt/dir-iterator-updates:
test-dir-iterator: use path argument directly
dir-iterator: release strbuf after use
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"merge-recursive" hit a BUG() when building a virtual merge base
detected a directory rename.
* en/disable-dir-rename-in-recursive-merge:
merge-recursive: avoid directory rename detection in recursive case
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Commit 01d3a526ad (t0000: check whether the shell supports the "local"
keyword, 2017-10-26) added a test to gather data on whether people run
the test suite with shells that don't support "local".
After almost two years, nobody has complained, and several other uses
have cropped up in test-lib-functions.sh. Let's declare it acceptable to
use.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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t1410.3 ("corrupt and checks") fails when run using dash versions
before 0.5.8, with a cryptic message:
mv: cannot stat '.git/objects//e84adb2704cbd49549e52169b4043871e13432': No such file or directory
The function generating that path:
test_oid_to_path () {
echo "${1%${1#??}}/${1#??}"
}
which is supposed to produce a result like
12/3456789....
But a dash bug[*] causes it to instead expand to
/3456789...
The stream of symbols that makes up this function is hard for humans
to follow, too. The complexity mostly comes from the repeated use of
the expression ${1#??} for the basename of the loose object. Use a
variable instead --- nowadays, the dialect of shell used by Git
permits local variables, so this is cheap.
An alternative way to work around [*] is to remove the double-quotes
around test_oid_to_path's return value. That makes the expression
easier for dash to read, but harder for humans. Let's prefer the
rephrasing that's helpful for humans, too.
Noticed by building on Ubuntu trusty, which uses dash 0.5.7.
[*] Fixed by v0.5.8~13 ("[EXPAND] Propagate EXP_QPAT in subevalvar, 2013-08-23).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Avoid allocating and leaking a strbuf for holding a verbatim copy of the
path argument and pass the latter directly to dir_iterator_begin()
instead.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since the previous commit, our invariant that the_repository is never
NULL is restored, and we can stop being defensive in include_by_branch().
We can confirm the fix by showing that an onbranch config include will
not cause a segfault when run outside a git repository. I've put this in
t1309-early-config since it's related to the case added by 85fe0e800c
(config: work around bug with includeif:onbranch and early config,
2019-07-31), though technically the issue was with
read_very_early_config() and not read_early_config().
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 85fe0e800c (config: work around bug with includeif:onbranch and
early config, 2019-07-31) tests that our early config-reader does not
access the file mentioned by includeIf.onbranch:refs/heads/master.path.
But it would never do so even if the feature were implemented, since the
onbranch matching code uses the short refname "master".
The test still serves its purpose, since the bug fixed by 85fe0e800c is
actually that we hit a BUG() before even deciding whether to match the
ref. But let's use the correct name to avoid confusion (and which we'll
eventually want to trigger once we do the "real" fix described in that
commit).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The revision option parser recently learned about --end-of-options, but
that's not quite enough for all callers. Some of them, like git-log,
pick out some options using parse_options(), and then feed the remainder
to setup_revisions(). For those cases we need to stop parse_options()
from finding more options when it sees --end-of-options, and to retain
that option in argv so that setup_revisions() can see it as well.
Let's handle this the same as we do "--". We can even piggy-back on the
handling of PARSE_OPT_KEEP_DASHDASH, because any caller that wants to
retain one will want to retain the other.
I've included two tests here. The "log" test covers "--source", which is
one of the options it handles with parse_options(), and would fail
before this patch. There's also a test that uses the parse-options
helper directly. That confirms that the option is handled correctly even
in cases without KEEP_DASHDASH or setup_revisions(). I.e., it is safe to
use --end-of-options in place of "--" in other programs.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's currently no robust way to tell Git that a particular option is
meant to be a revision, and not an option. So if you have a branch
"refs/heads/--foo", you cannot just say:
git rev-list --foo
You can say:
git rev-list refs/heads/--foo
But that breaks down if you don't know the refname, and in particular if
you're a script passing along a value from elsewhere. In most programs,
you can use "--" to end option parsing, like this:
some-prog -- "$revision"
But that doesn't work for the revision parser, because "--" is already
meaningful there: it separates revisions from pathspecs. So we need some
other marker to separate options from revisions.
This patch introduces "--end-of-options", which serves that purpose:
git rev-list --oneline --end-of-options "$revision"
will work regardless of what's in "$revision" (well, if you say "--" it
may fail, but it won't do something dangerous, like triggering an
unexpected option).
The name is verbose, but that's probably a good thing; this is meant to
be used for scripted invocations where readability is more important
than terseness.
One alternative would be to introduce an explicit option to mark a
revision, like:
git rev-list --oneline --revision="$revision"
That's slightly _more_ informative than this commit (because it makes
even something silly like "--" unambiguous). But the pattern of using a
separator like "--" is well established in git and in other commands,
and it makes some scripting tasks simpler like:
git rev-list --end-of-options "$@"
There's no documentation in this patch, because it will make sense to
describe the feature once it is available everywhere (and support will
be added in further patches).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ever since commit 8c8e5bd6eb33 ("merge-recursive: switch directory
rename detection default", 2019-04-05), the default handling with
directory rename detection was to report a conflict and leave unstaged
entries in the index. However, when creating a virtual merge base in
the recursive case, we absolutely need a tree, and the only way a tree
can be written is if we have no unstaged entries -- otherwise we hit a
BUG().
There are a few fixes possible here which at least fix the BUG(), but
none of them seem optimal for other reasons; see the comments with the
new testcase 13e in t6043 for details (which testcase triggered a BUG()
prior to this patch). As such, just opt for a very conservative and
simple choice that is still relatively reasonable: have the recursive
case treat 'conflict' as 'false' for opt->detect_directory_renames.
Reported-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The verbose output of every test looks something like this:
expecting success:
echo content >file &&
git add file &&
git commit -m "add file"
[master (root-commit) d1fbfbd] add file
Author: A U Thor <author@example.com>
1 file changed, 1 insertion(+)
create mode 100644 file
ok 1 - commit works
i.e. first an "expecting success" (or "checking known breakage") line
followed by the commands to be executed, then the output of those
comamnds, and finally an "ok"/"not ok" line containing the test name.
Note that the test's name is only shown at the very end.
With '-x' tracing enabled and/or in longer tests the verbose output
might be several screenfulls long, making it harder than necessary to
find where the output of the test with a given name starts (especially
when the outputs to different file descriptors are racing, and the
"expecting success"/command block arrives earlier than the "ok" line
of the previous test).
Print the test name at the start of the test's verbose output, i.e. at
the end of the "expecting success" and "checking known breakage"
lines, to make the start of a particular test a bit easier to
recognize. Also print the test script and test case numbers, to help
those poor souls who regularly have to scan through the combined
verbose output of several test scripts.
So the dummy test above would start like this:
expecting success of 9999.1 'commit works':
echo content >file &&
[...]
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our test scripts are named something like 't1234-command.sh', but the
script names used in 't0000-basic.sh' don't follow this naming
convention. Normally this doesn't matter, because the test scripts
themselves don't care how they are called. However, the next patch
will start to include the test number in the test's verbose output, so
the test script's name will matter in the two tests checking the
verbose output.
Update the tests 'test --verbose' and 'test --verbose-only' to follow
out test script naming convention.
Leave the other tests in 't0000' unchanged: changing the names of
their test scripts would be only pointless code churn.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 1771be90 "commit-graph: merge commit-graph chains" (2019-06-18),
the method sort_and_scan_merged_commits() was added to merge the
commit lists of two commit-graph files in the incremental format.
Unfortunately, there was an off-by-one error in that method around
incrementing num_extra_edges, which leads to an incorrect offset
for the base graph chunk.
When we store an octopus merge in the commit-graph file, we store
the first parent in the normal place, but use the second parent
position to point into the "extra edges" chunk where the remaining
parents exist. This means we should be adding "num_parents - 1"
edges to this list, not "num_parents - 2". That is the basic error.
The reason this was not caught in the test suite is more subtle.
In 5324-split-commit-graph.sh, we test creating an octopus merge
and adding it to the tip of a commit-graph chain, then verify the
result. This _should_ have caught the problem, except that when
we load the commit-graph files we were overly careful to not fail
when the commit-graph chain does not match. This care was on
purpose to avoid race conditions as one process reads the chain
and another process modifies it. In such a case, the reading
process outputs the following message to stderr:
warning: commit-graph chain does not match
These warnings are output in the test suite, but ignored. By
checking the stderr of `git commit-graph verify` to include
the expected progress output, it will now catch this error.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While 'git commit-graph write --stdin-commits' expects commit object
ids as input, it accepts and silently skips over any invalid commit
object ids, and still exits with success:
# nonsense
$ echo not-a-commit-oid | git commit-graph write --stdin-commits
$ echo $?
0
# sometimes I forgot that refs are not good...
$ echo HEAD | git commit-graph write --stdin-commits
$ echo $?
0
# valid tree OID, but not a commit OID
$ git rev-parse HEAD^{tree} | git commit-graph write --stdin-commits
$ echo $?
0
$ ls -l .git/objects/info/commit-graph
ls: cannot access '.git/objects/info/commit-graph': No such file or directory
Check that all input records are indeed valid commit object ids and
return with error otherwise, the same way '--stdin-packs' handles
invalid input; see e103f7276f (commit-graph: return with errors during
write, 2019-06-12).
Note that it should only return with error when encountering an
invalid commit object id coming from standard input. However,
'--reachable' uses the same code path to process object ids pointed to
by all refs, and that includes tag object ids as well, which should
still be skipped over. Therefore add a new flag to 'enum
commit_graph_write_flags' and a corresponding field to 'struct
write_commit_graph_context', so we can differentiate between those two
cases.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 't5318-commit-graph.sh' the test 'close with correct error on bad
input' manually verifies the exit code of a 'git commit-graph write'
command.
Use 'test_expect_code' instead.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Hotfix for making "git log" use the mailmap by default.
* jc/log-mailmap-flip-defaults:
log: really flip the --mailmap default
log: flip the --mailmap default unconditionally
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The recently added [includeif "onbranch:branch"] feature does not
work well with an early config mechanism, as it attempts to find
out what branch we are on before we even haven't located the git
repository. The inclusion during early config scan is ignored to
work around this issue.
* js/early-config-with-onbranch:
config: work around bug with includeif:onbranch and early config
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`git restore --staged` uses the same machinery as `git checkout HEAD`,
so there should be a similar test case for "restore" as the existing
test case for "checkout" with deleted ita files.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Varun Naik <vcnaik94@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is possible to delete a committed file from the index and then add it
as intent-to-add. After `git checkout HEAD <pathspec>`, the file should
be identical in the index and HEAD. The command already works correctly
if the file has contents in HEAD. This patch provides the desired
behavior even when the file is empty in HEAD.
`git checkout HEAD <pathspec>` calls tree.c:read_tree_1(), with fn
pointing to checkout.c:update_some(). update_some() creates a new cache
entry but discards it when its mode and oid match those of the old
entry. A cache entry for an ita file and a cache entry for an empty file
have the same oid. Therefore, an empty deleted ita file previously
passed both of these checks, and the new entry was discarded, so the
file remained unchanged in the index. After this fix, if the file is
marked as ita in the cache, then we avoid discarding the new entry and
add the new entry to the cache instead.
This change should not affect newly added ita files. For those, inside
tree.c:read_tree_1(), tree_entry_interesting() returns
entry_not_interesting, so fn is never called.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Varun Naik <vcnaik94@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update the docs, test the interaction between the new default,
configuration and command line option, in addition to actually
flipping the default.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have a couple of test scripts that are not completely
httpd-specific, but do run a few httpd-specific tests at the end.
These test scripts source 'lib-httpd.sh' somewhere mid-script, which
then skips all the rest of the test script if the dependencies for
running httpd tests are not fulfilled.
As the previous two patches in this series show, already on two
occasions non-httpd-specific tests were appended at the end of such
test scripts, and, consequently, they were skipped as well when httpd
tests couldn't be run.
Add a comment at the end of these test scripts to warn against adding
non-httpd-specific tests at the end, in the hope that they will help
prevent similar issues in the future.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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't5703-upload-pack-ref-in-want.sh' sources 'lib-httpd.sh' near the end
to run a couple of httpd-specific tests, but 'lib-httpd.sh' skips all
the rest of the test script if the dependencies for running httpd
tests are not fulfilled. However, the last six tests in 't5703' are
not httpd-specific, but they are skipped as well when httpd tests
can't be run.
Move these six tests earlier in the test script, before 'lib-httpd.sh'
is sourced, so they will be run even when httpd tests aren't. Note
that this is not merely a pure code movement, because the setup test
case for the httpd tests needed an additional 'rm -rf
"$LOCAL_PRISTINE"' to clean up a directory left behind by the moved
non-httpd-specific tests.
Also add a comment at the end of this test script to warn against
adding non-httpd-specific tests at the end, in the hope that it will
help prevent similar issues in the future.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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't5510-fetch.sh' sources 'lib-httpd.sh' near the end to run a
httpd-specific test, but 'lib-httpd.sh' skips all the rest of the test
script if the dependencies for running httpd tests are not fulfilled.
Alas, recently cdbd70c437 (fetch: add --[no-]show-forced-updates
argument, 2019-06-18) appended a non-httpd-specific test at the end,
and this test is then skipped as well when httpd tests can't be run.
Move this new test earlier in the test script, before 'lib-httpd.sh'
is sourced, so it will be run even when httpd tests aren't.
Also add a comment at the end of this test script to warn against
adding non-httpd-specific tests at the end, in the hope that it will
help prevent similar issues in the future.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Squelch unneeded and misleading warnings from "repack" when the
command attempts to generate pack bitmaps without explicitly asked
for by the user.
* jk/repack-silence-auto-bitmap-warning:
repack: simplify handling of auto-bitmaps and .keep files
repack: silence warnings when auto-enabled bitmaps cannot be built
t7700: clean up .keep file in bitmap-writing test
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* jk/sort-iter-test-output:
t: sort output of hashmap iteration
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* jc/dir-iterator-test-fix:
test-dir-iterator: do not assume errno values
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Update to the tests to help SHA-256 transition continues.
* bc/hash-independent-tests-part-4:
t2203: avoid hard-coded object ID values
t1710: make hash independent
t1007: remove SHA1 prerequisites
t0090: make test pass with SHA-256
t0027: make hash size independent
t6030: make test work with SHA-256
t5000: make hash independent
t1450: make hash size independent
t1410: make hash size independent
t: add helper to convert object IDs to paths
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It turns out that being cautious to warn against upcoming default
change was an unpopular behaviour, and such a care can easily be
defeated by distro packagers to render it ineffective anyway.
Just flip the default, with only a mention in the release notes.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 07b2c0eacac (config: learn the "onbranch:" includeIf condition,
2019-06-05), there is a potential catch-22 in the early config path: if
the `include.onbranch:` feature is used, Git assumes that the Git
directory has been initialized already. However, in the early config
code path that is not true.
One way to trigger this is to call the following commands in any
repository:
git config includeif.onbranch:refs/heads/master.path broken
git help -a
The symptom triggered by the `git help -a` invocation reads like this:
BUG: refs.c:1851: attempting to get main_ref_store outside of repository
Let's work around this, simply by ignoring the `includeif.onbranch:`
setting when parsing the config when the ref store has not been
initialized (yet).
Technically, there is a way to solve this properly: teach the refs
machinery to initialize the ref_store from a given gitdir/commondir pair
(which we _do_ have in the early config code path), and then use that in
`include_by_branch()`. This, however, is a pretty involved project, and
we're already in the feature freeze for Git v2.23.0.
Note: when calling above-mentioned two commands _outside_ of any Git
worktree (passing the `--global` flag to `git config`, as there is
obviously no repository config available), at the point when
`include_by_branch()` is called, `the_repository` is `NULL`, therefore
we have to be extra careful not to dereference it in that case.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 7328482253 (repack: disable bitmaps-by-default if .keep files
exist, 2019-06-29) taught repack to prefer disabling bitmaps to
duplicating objects (unless bitmaps were asked for explicitly).
But there's an easier way to do this: if we keep passing the
--honor-pack-keep flag to pack-objects when auto-enabling bitmaps, then
pack-objects already makes the same decision (it will disable bitmaps
rather than duplicate). Better still, pack-objects can actually decide
to do so based not just on the presence of a .keep file, but on whether
that .keep file actually impacts the new pack we're making (so if we're
racing with a push or fetch, for example, their temporary .keep file
will not block us from generating bitmaps if they haven't yet updated
their refs).
And because repack uses the --write-bitmap-index-quiet flag, we don't
have to worry about pack-objects generating confusing warnings when it
does see a .keep file. We can confirm this by tweaking the .keep test to
check repack's stderr.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
René Scharfe
Derrick Stolee
Jeff King
Jonathan Nieder
Elijah Newren
SZEDER Gábor
Varun Naik
Johannes Schindelin