In 73c3253d75 (bundle: framework for options before bundle file,
2019-11-10) the "git bundle" command was refactored to use
parse_options(). In that refactoring it started understanding the
"--verbose" flag before the subcommand, e.g.:
git bundle --verbose verify --quiet
However, nothing ever did anything with this "verbose" variable, and
the change wasn't documented. It appears to have been something that
escaped the lab, and wasn't flagged by reviewers at the time. Let's
just remove it.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The error in "git help no-such-git-command" is handled better.
* ma/help-w-check-for-requested-page:
help: make sure local html page exists before calling external processes
Adjust credential-cache helper to Windows.
* cb/unix-sockets-with-windows:
git-compat-util: include declaration for unix sockets in windows
credential-cache: check for windows specific errors
t0301: fixes for windows compatibility
An oddball OPTION_ARGUMENT feature has been removed from the
parse-options API.
* ab/retire-option-argument:
parse-options API: remove OPTION_ARGUMENT feature
difftool: use run_command() API in run_file_diff()
difftool: prepare "diff" cmdline in cmd_difftool()
difftool: prepare "struct child_process" in cmd_difftool()
Rewrite of "git bisect" in C continues.
* mr/bisect-in-c-4:
bisect--helper: retire `--bisect-next-check` subcommand
bisect--helper: reimplement `bisect_run` shell function in C
bisect--helper: reimplement `bisect_visualize()` shell function in C
run-command: make `exists_in_PATH()` non-static
t6030-bisect-porcelain: add test for bisect visualize
t6030-bisect-porcelain: add tests to control bisect run exit cases
Conditional compilation around versions of libcURL has been
straightened out.
* ab/http-drop-old-curl-plus:
http: don't hardcode the value of CURL_SOCKOPT_OK
http: centralize the accounting of libcurl dependencies
http: correct curl version check for CURLOPT_PINNEDPUBLICKEY
http: correct version check for CURL_HTTP_VERSION_2
http: drop support for curl < 7.18.0 (again)
Makefile: drop support for curl < 7.9.8 (again)
INSTALL: mention that we need libcurl 7.19.4 or newer to build
INSTALL: reword and copy-edit the "libcurl" section
INSTALL: don't mention the "curl" executable at all
Taking advantage of the CGI interface, http-backend has been
updated to enable protocol v2 automatically when the other side
asks for it.
* jk/http-server-protocol-versions:
docs/protocol-v2: point readers transport config discussion
docs/git: discuss server-side config for GIT_PROTOCOL
docs/http-backend: mention v2 protocol
http-backend: handle HTTP_GIT_PROTOCOL CGI variable
t5551: test v2-to-v0 http protocol fallback
Replace a handcrafted data structure used to keep track of bad
objects in the packfile API by an oidset.
* rs/packfile-bad-object-list-in-oidset:
packfile: use oidset for bad objects
packfile: convert has_packed_and_bad() to object_id
packfile: convert mark_bad_packed_object() to object_id
midx: inline nth_midxed_pack_entry()
oidset: make oidset_size() an inline function
When "git am --abort" fails to abort correctly, it still exited
with exit status of 0, which has been corrected.
* en/am-abort-fix:
am: fix incorrect exit status on am fail to abort
t4151: add a few am --abort tests
git-am.txt: clarify --abort behavior
"git update-ref --stdin" failed to flush its output as needed,
which potentially led the conversation to a deadlock.
* ps/update-ref-batch-flush:
t1400: avoid SIGPIPE race condition on fifo
update-ref: fix streaming of status updates
While git can be compiled with SANITIZE=leak, we have not run
regression tests under that mode. Memory leaks have only been fixed as
one-offs without structured regression testing.
This change adds CI testing for it. We'll now build and small set of
whitelisted t00*.sh tests under Linux with a new job called
"linux-leaks".
The CI target uses a new GIT_TEST_PASSING_SANITIZE_LEAK=true test
mode. When running in that mode, we'll assert that we were compiled
with SANITIZE=leak. We'll then skip all tests, except those that we've
opted-in by setting "TEST_PASSES_SANITIZE_LEAK=true".
A test setting "TEST_PASSES_SANITIZE_LEAK=true" setting can in turn
make use of the "SANITIZE_LEAK" prerequisite, should they wish to
selectively skip tests even under
"GIT_TEST_PASSING_SANITIZE_LEAK=true". In the preceding commit we
started doing this in "t0004-unwritable.sh" under SANITIZE=leak, now
it'll combine nicely with "GIT_TEST_PASSING_SANITIZE_LEAK=true".
This is how tests that don't set "TEST_PASSES_SANITIZE_LEAK=true" will
be skipped under GIT_TEST_PASSING_SANITIZE_LEAK=true:
$ GIT_TEST_PASSING_SANITIZE_LEAK=true ./t0001-init.sh
1..0 # SKIP skip all tests in t0001 under SANITIZE=leak, TEST_PASSES_SANITIZE_LEAK not set
The intent is to add more TEST_PASSES_SANITIZE_LEAK=true annotations
as follow-up change, but let's start small to begin with.
In ci/run-build-and-tests.sh we make use of the default "*" case to
run "make test" without any GIT_TEST_* modes. SANITIZE=leak is known
to fail in combination with GIT_TEST_SPLIT_INDEX=true in
t0016-oidmap.sh, and we're likely to have other such failures in
various GIT_TEST_* modes. Let's focus on getting the base tests
passing, we can expand coverage to GIT_TEST_* modes later.
It would also be possible to implement a more lightweight version of
this by only relying on setting "LSAN_OPTIONS". See
<YS9OT/pn5rRK9cGB@coredump.intra.peff.net>[1] and
<YS9ZIDpANfsh7N+S@coredump.intra.peff.net>[2] for a discussion of
that. I've opted for this approach of adding a GIT_TEST_* mode instead
because it's consistent with how we handle other special test modes.
Being able to add a "!SANITIZE_LEAK" prerequisite and calling
"test_done" early if it isn't satisfied also means that we can more
incrementally add regression tests without being forced to fix
widespread and hard-to-fix leaks at the same time.
We have tests that do simple checking of some tool we're interested
in, but later on in the script might be stressing trace2, or common
sources of leaks like "git log" in combination with the tool (e.g. the
commit-graph tests). To be clear having a prerequisite could also be
accomplished by using "LSAN_OPTIONS" directly.
On the topic of "LSAN_OPTIONS": It would be nice to have a mode to
aggregate all failures in our various scripts, see [2] for a start at
doing that which sets "log_path" in "LSAN_OPTIONS". I've punted on
that for now, it can be added later.
As of writing this we've got major regressions between master..seen,
i.e. the t000*.sh tests and more fixed since 31f9acf9ce (Merge branch
'ah/plugleaks', 2021-08-04) have regressed recently.
See the discussion at <87czsv2idy.fsf@evledraar.gmail.com>[3] about
the lack of this sort of test mode, and 0e5bba53af (add UNLEAK
annotation for reducing leak false positives, 2017-09-08) for the
initial addition of SANITIZE=leak.
See also 09595ab381 (Merge branch 'jk/leak-checkers', 2017-09-19),
7782066f67 (Merge branch 'jk/apache-lsan', 2019-05-19) and the recent
936e58851a (Merge branch 'ah/plugleaks', 2021-05-07) for some of the
past history of "one-off" SANITIZE=leak (and more) fixes.
As noted in [5] we can't support this on OSX yet until Clang 14 is
released, at that point we'll probably want to resurrect that
"osx-leaks" job.
1. https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer
2. https://lore.kernel.org/git/YS9OT%2Fpn5rRK9cGB@coredump.intra.peff.net/
3. https://lore.kernel.org/git/87czsv2idy.fsf@evledraar.gmail.com/
4. https://lore.kernel.org/git/YS9ZIDpANfsh7N+S@coredump.intra.peff.net/
5. https://lore.kernel.org/git/20210916035603.76369-1-carenas@gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When SANITIZE=leak is specified we'll now add a SANITIZE_LEAK flag to
GIT-BUILD-OPTIONS, this can then be picked up by the test-lib.sh,
which sets a SANITIZE_LEAK prerequisite.
We can then skip specific tests that are known to fail under
SANITIZE=leak, add one such annotation to t0004-unwritable.sh, which
now passes under SANITIZE=leak.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The difftool dir-diff mode handles symlinks by replacing them with their
readlink(2) values. This allows diff tools to see changes to symlinks
as if they were regular text diffs with the old and new path values.
This is analogous to what "git diff" displays when symlinks change.
The temporary diff directories that are created initially contain
symlinks because they get checked-out using a temporary index that
retains the original symlinks as checked-in to the repository.
A bug was introduced when difftool was rewritten in C that made
difftool write the readlink(2) contents into the pointed-to file rather
than the symlink itself. The write was going through the symlink and
writing to its target rather than writing to the symlink path itself.
Replace symlinks with raw text files by unlinking the symlink path
before writing the readlink(2) content into them.
When 18ec800512 (difftool: handle modified symlinks in dir-diff mode,
2017-03-15) added handling for modified symlinks this bug got recorded
in the test suite. The tests included the pointed-to symlink target
paths. These paths were being reported because difftool was erroneously
writing to them, but they should have never been reported nor written.
Correct the modified-symlinks test cases by removing the target files
from the expected output.
Add a test to ensure that symlinks are written with the readlink(2)
values and that the target files contain their original content.
Reported-by: Alan Blotz <work@blotz.org>
Helped-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a git_config() call was added in dbfae68969 (help: reuse
print_columns() for help -a, 2012-04-13) to read the column config
we'd always use the resulting "colopts" variable.
Then in 63eae83f8f (help: add "-a --verbose" to list all commands
with synopsis, 2018-05-20) we started only using the "colopts" config
under "--all" if "--no-verbose" was also given, but the "git_config()"
call was not moved inside the "verbose" branch of the code.
This change effectively does that, we'll only call list_commands()
under "--all --no-verbose", so let's have it look up the config it
needs. See 26c7d06783 (help -a: improve and make --verbose default, 2018-09-29) for another case in help.c where we look up config.
The get_colopts() function is named for consistency with the existing
get_alias() function added in 26c7d06783.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "help" builtin has been able to emit configuration variables since
e17ca92637 (completion: drop the hard coded list of config vars,
2018-05-26), but it hasn't produced exactly the format the completion
script wanted. Let's do that.
We got partway there in 2675ea1cc0 (completion: use 'sort -u' to
deduplicate config variable names, 2019-08-13) and
d9438873c4 (completion: deduplicate configuration sections,
2019-08-13), but after both we still needed some sorting,
de-duplicating and awk post-processing of the list.
We can instead simply do the relevant parsing ourselves (we were doing
most of it already), and call string_list_remove_duplicates() after
already sorting the list, so the caller doesn't need to invoke "sort
-u". The "--config-for-completion" output is the same as before after
being passed through "sort -u".
Then add a new "--config-sections-for-completion" option. Under that
output we'll emit config sections like "alias" (instead of "alias." in
the --config-for-completion output).
We need to be careful to leave the "--config-for-completion" option
compatible with users git, but are still running a shell with an older
git-completion.bash. If we e.g. changed the option name they'd see
messages about git-completion.bash being unable to find the
"--config-for-completion" option.
Such backwards compatibility isn't something we should bend over
backwards for, it's only helping users who:
* Upgrade git
* Are in an old shell
* The git-completion.bash in that shell hasn't cached the old
"--config-for-completion" output already.
But since it's easy in this case to retain compatibility, let's do it,
the older versions of git-completion.bash won't care that the input
they get doesn't change after a "sort -u".
While we're at it let's make "--config-for-completion" die if there's
anything left over in "argc", and do the same in the new
"--config-sections-for-completion" option.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a regression test for the --config-for-completion option, this was
tested for indirectly with the test added in 7a09a8f093 (completion:
add tests for 'git config' completion, 2019-08-13), but let's do it
directly here as well.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As preceding commits have incrementally established all of the --all,
--guides, --config and hidden --config-for-completion options are
mutually exclusive. So let's use OPT_CMDMODE() to parse the
command-line instead, and take advantage of its conflicting options
detection.
This is the first command with a hidden CMDMODE, so let's introduce a
OPT_CMDMODE_F() macro to go along with OPT_CMDMODE().
I think this makes the usage information that we emit slightly worse,
e.g. before we'd emit:
$ git help --all --config
fatal: --config and --all cannot be combined
usage: git help [-a|--all] [--[no-]verbose]]
[[-i|--info] [-m|--man] [-w|--web]] [<command>]
or: git help [-g|--guides]
or: git help [-c|--config]
[...]
$
And now:
$ git help --all --config
error: option `config' is incompatible with --all
$
But improving that is a general topic for parse-options.c improvement,
i.e. we should probably emit the full usage in that case.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The --all and --guides commands could be combined, which wouldn't have
any impact on the output except for:
git help --all --guides --no-verbose
Listing the guide alongside that output was clearly not intended, so
let's error out here. See 002b726a40 (builtin/help.c: add
list_common_guides_help() function, 2013-04-02) for the initial
implementation.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix a bug in the --config option that's been there ever since its
introduction in 3ac68a93fd (help: add --config to list all available
config, 2018-05-26). Die when --all and --config are combined,
combining them doesn't make sense.
The code for the --config option when combined with an earlier
refactoring done to support the --guide option in
65f98358c0 (builtin/help.c: add --guide option, 2013-04-02) would
cause us to take the "--all" branch early and ignore the --config
option.
Let's instead list these as incompatible, both in the synopsis and
help output, and enforce it in the code itself.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a missing test for checking what the --config output added in
ac68a93fd2 (help: add --config to list all available config,
2018-05-26) looks like. We should not be emitting anything except
config variables and the brief usage information at the end here.
The second test regexp here might not match three-level variables in
general, as their second level could contain ".", but in this case
we're always emitting what we extract from the documentation, so it's
all strings like:
foo.<name>.bar
If we did introduce something like variable example content here we'd
like this to break, since we'd then be likely to break the
git-completion.bash.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As noted in 65f98358c0 (builtin/help.c: add --guide option,
2013-04-02) and a133737b80 (doc: include --guide option description
for "git help", 2013-04-02) which introduced the --guide option, it
cannot be combined with e.g. <command>.
Change the command and the "SYNOPSIS" section to reflect that desired
behavior. Now that we assert this in code we don't need to
exhaustively describe the previous confusing behavior in the
documentation either, instead of silently ignoring the provided
argument we'll now error out.
The "We're done. Ignore any remaining args" comment added in
15f7d49438 (builtin/help.c: split "-a" processing into two,
2013-04-02) can now be removed, it's obvious that we're asserting the
behavior with the check of "argc".
The "--config" option is still missing from the synopsis, it will be
added in a subsequent commit where we'll fix bugs in its
implementation.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/grep-haystack-is-read-only:
grep: store grep_source buffer as const
grep: mark "haystack" buffers as const
grep: stop modifying buffer in grep_source_1()
grep: stop modifying buffer in show_line()
grep: stop modifying buffer in strip_timestamp
The "COMPUTE_HEADER_DEPENDENCIES" feature added in [1] was extended to
use auto-detection in [2], that "auto" detection has always piped
STDERR to /dev/null, so any failures on compilers that didn't support
these GCC flags would silently fall back to
"COMPUTE_HEADER_DEPENDENCIES=no".
Later when -Wpedantic support was added to DEVOPTS in [3] we started
passing -Wpedantic in combination with -Werror to the compiler
here. Note (to the pedantic): [3] actually passed "-pedantic", but it
and "-Wpedantic" are synonyms.
Turning on -Wpedantic in [3] broke the auto-detection, since this
relies on compiling an empty program. GCC would loudly complain on
STDERR:
/dev/null:1: error: ISO C forbids an empty translation unit
[-Werror=pedantic]
cc1: note: unrecognized command-line option
‘-Wno-pedantic-ms-format’ may have been intended to silence
earlier diagnostics
cc1: all warnings being treated as errors
But as that ended up in the "$(dep_check)" variable due to the "2>&1"
in [2] we didn't see it.
Then when [4] made DEVOPTS=pedantic the default specifying
"DEVELOPER=1" would effectively set "COMPUTE_HEADER_DEPENDENCIES=no".
To fix these issues let's unconditionally pass -Wno-pedantic after
$(ALL_CFLAGS), we might get a -Wpedantic via config.mak.dev after, or
the builder might specify it via CFLAGS. In either case this will undo
current and future problems with -Wpedantic.
I think it would make sense to simply remove the "2>&1", it would mean
that anyone using a non-GCC-like compiler would get warnings under
COMPUTE_HEADER_DEPENDENCIES=auto, e.g on AIX's xlc would emit:
/opt/IBM/xlc/13.1.3/bin/.orig/xlc: 1501-208 (S) command option D is missing a subargument
Non-zero 40 exit with COMPUTE_HEADER_DEPENDENCIES=auto, set it to "yes" or "no" to quiet auto-detect
And on Solaris with SunCC:
cc: Warning: Option -x passed to ld, if ld is invoked, ignored otherwise
cc: refused to overwrite input file by output file: /dev/null
cc: Warning: Option -x passed to ld, if ld is invoked, ignored otherwise
cc: refused to overwrite input file by output file: /dev/null
Non-zero 1 exit with COMPUTE_HEADER_DEPENDENCIES=auto, set it to "yes" or "no" to quiet auto-detect
Both could be quieted by setting COMPUTE_HEADER_DEPENDENCIES=no
explicitly, as suggested, but let's see if this'll fix it without
emitting too much noise at those that aren't using "gcc" or "clang".
1. f2fabbf76e (Teach Makefile to check header dependencies,
2010-01-26)
2. 111ee18c31 (Makefile: Use computed header dependencies if the
compiler supports it, 2011-08-18)
3. 729b3925ed (Makefile: add a DEVOPTS flag to get pedantic
compilation, 2018-07-24)
4. 6a8cbc41ba (developer: enable pedantic by default, 2021-09-03)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change the "sparse" target and its *.sp dependencies to be
non-.PHONY. Before this change "make sparse" would take ~5s to re-run
all the *.c files through "cgcc", after it it'll create an empty *.sp
file sitting alongside the *.c file, only if the *.c file or its
dependencies are newer than the *.sp is the *.sp re-made.
We ensure that the recursive dependencies are correct by depending on
the *.o file, which in turn will have correct dependencies by either
depending on all header files, or under
"COMPUTE_HEADER_DEPENDENCIES=yes" the headers it needs.
This means that a plain "make sparse" is much slower, as we'll now
need to make the *.o files just to create the *.sp files, but
incrementally creating the *.sp files is *much* faster and less
verbose, it thus becomes viable to run "sparse" along with "all" as
e.g. "git rebase --exec 'make all sparse'".
On my box with -j8 "make sparse" was fast before, or around 5 seconds,
now it only takes that long the first time, and the common case is
<100ms, or however long it takes GNU make to stat the *.sp file and
see that all the corresponding *.c file and its dependencies are
older.
See 0bcd9ae85d (sparse: Fix errors due to missing target-specific
variables, 2011-04-21) for the modern implementation of the sparse
target being changed here.
It is critical that we use -Wsparse-error here, otherwise the error
would only show up once, but we'd successfully create the empty *.sp
file, and running a second time wouldn't show the error. I'm therefore
not putting it into SPARSE_FLAGS or SP_EXTRA_FLAGS, it's not optional,
the Makefile logic won't behave properly without it.
Appending to $@ without a move is OK here because we're using the
.DELETE_ON_ERROR Makefile feature. See 7b76d6bf22 (Makefile: add and
use the ".DELETE_ON_ERROR" flag, 2021-06-29). GNU make ensures that on
error this file will be removed.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When HTTP/2 is in use, we fail to correctly redact "Authorization" (and
other) headers in our GIT_TRACE_CURL output.
We get the headers in our CURLOPT_DEBUGFUNCTION callback, curl_trace().
It passes them along to curl_dump_header(), which in turn checks
redact_sensitive_header(). We see the headers as a text buffer like:
Host: ...
Authorization: Basic ...
After breaking it into lines, we match each header using skip_prefix().
This is case-sensitive, even though HTTP headers are case-insensitive.
This has worked reliably in the past because these headers are generated
by curl itself, which is predictable in what it sends.
But when HTTP/2 is in use, instead we get a lower-case "authorization:"
header, and we fail to match it. The fix is simple: we should match with
skip_iprefix().
Testing is more complicated, though. We do have a test for the redacting
feature, but we don't hit the problem case because our test Apache setup
does not understand HTTP/2. You can reproduce the issue by applying this
on top of the test change in this patch:
diff --git a/t/lib-httpd/apache.conf b/t/lib-httpd/apache.conf
index afa91e38b0..19267c7107 100644
--- a/t/lib-httpd/apache.conf
+++ b/t/lib-httpd/apache.conf
@@ -29,6 +29,9 @@ ErrorLog error.log
LoadModule setenvif_module modules/mod_setenvif.so
</IfModule>
+LoadModule http2_module modules/mod_http2.so
+Protocols h2c
+
<IfVersion < 2.4>
LockFile accept.lock
</IfVersion>
@@ -64,8 +67,8 @@ LockFile accept.lock
<IfModule !mod_access_compat.c>
LoadModule access_compat_module modules/mod_access_compat.so
</IfModule>
-<IfModule !mod_mpm_prefork.c>
- LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
+<IfModule !mod_mpm_event.c>
+ LoadModule mpm_event_module modules/mod_mpm_event.so
</IfModule>
<IfModule !mod_unixd.c>
LoadModule unixd_module modules/mod_unixd.so
diff --git a/t/t5551-http-fetch-smart.sh b/t/t5551-http-fetch-smart.sh
index 1c2a444ae7..ff74f0ae8a 100755
--- a/t/t5551-http-fetch-smart.sh
+++ b/t/t5551-http-fetch-smart.sh
@@ -24,6 +24,10 @@ test_expect_success 'create http-accessible bare repository' '
git push public main:main
'
+test_expect_success 'prefer http/2' '
+ git config --global http.version HTTP/2
+'
+
setup_askpass_helper
test_expect_success 'clone http repository' '
but this has a few issues:
- it's not necessarily portable. The http2 apache module might not be
available on all systems. Further, the http2 module isn't compatible
with the prefork mpm, so we have to switch to something else. But we
don't necessarily know what's available. It would be nice if we
could have conditional config, but IfModule only tells us if a
module is already loaded, not whether it is available at all.
This might be a non-issue. The http tests are already optional, and
modern-enough systems may just have both of these. But...
- if we do this, then we'd no longer be testing HTTP/1.1 at all. I'm
not sure how much that matters since it's all handled by curl under
the hood, but I'd worry that some detail leaks through. We'd
probably want two scripts running similar tests, one with HTTP/2 and
one with HTTP/1.1.
- speaking of which, a later test fails with the patch above! The
problem is that it is making sure we used a chunked
transfer-encoding by looking for that header in the trace. But
HTTP/2 doesn't support that, as it has its own streaming mechanisms
(the overall operation works fine; we just don't see the header in
the trace).
Furthermore, even with the changes above, this test still does not
detect the current failure, because we see _both_ HTTP/1.1 and HTTP/2
requests, which confuse it. Quoting only the interesting bits from the
resulting trace file, we first see:
=> Send header: GET /auth/smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1
=> Send header: Connection: Upgrade, HTTP2-Settings
=> Send header: Upgrade: h2c
=> Send header: HTTP2-Settings: AAMAAABkAAQCAAAAAAIAAAAA
<= Recv header: HTTP/1.1 401 Unauthorized
<= Recv header: Date: Wed, 22 Sep 2021 20:03:32 GMT
<= Recv header: Server: Apache/2.4.49 (Debian)
<= Recv header: WWW-Authenticate: Basic realm="git-auth"
So the client asks for HTTP/2, but Apache does not do the upgrade for
the 401 response. Then the client repeats with credentials:
=> Send header: GET /auth/smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1
=> Send header: Authorization: Basic <redacted>
=> Send header: Connection: Upgrade, HTTP2-Settings
=> Send header: Upgrade: h2c
=> Send header: HTTP2-Settings: AAMAAABkAAQCAAAAAAIAAAAA
<= Recv header: HTTP/1.1 101 Switching Protocols
<= Recv header: Upgrade: h2c
<= Recv header: Connection: Upgrade
<= Recv header: HTTP/2 200
<= Recv header: content-type: application/x-git-upload-pack-advertisement
So the client does properly redact there, because we're speaking
HTTP/1.1, and the server indicates it can do the upgrade. And then the
client will make further requests using HTTP/2:
=> Send header: POST /auth/smart/repo.git/git-upload-pack HTTP/2
=> Send header: authorization: Basic dXNlckBob3N0OnBhc3NAaG9zdA==
=> Send header: content-type: application/x-git-upload-pack-request
And there we can see that the credential is _not_ redacted. This part of
the test is what gets confused:
# Ensure that there is no "Basic" followed by a base64 string, but that
# the auth details are redacted
! grep "Authorization: Basic [0-9a-zA-Z+/]" trace &&
grep "Authorization: Basic <redacted>" trace
The first grep does not match the un-redacted HTTP/2 header, because
it insists on an uppercase "A". And the second one does find the
HTTP/1.1 header. So as far as the test is concerned, everything is OK,
but it failed to notice the un-redacted lines.
We can make this test (and the other related ones) more robust by adding
"-i" to grep case-insensitively. This isn't really doing anything for
now, since we're not actually speaking HTTP/2, but it future-proofs the
tests for a day when we do (either we add explicit HTTP/2 test support,
or it's eventually enabled by default by our Apache+curl test setup).
And it doesn't hurt in the meantime for the tests to be more careful.
The change to use "grep -i", coupled with the changes to use HTTP/2
shown above, causes the test to fail with the current code, and pass
after this patch is applied.
And finally, there's one other way to demonstrate the issue (and how I
actually found it originally). Looking at GIT_TRACE_CURL output against
github.com, you'll see the unredacted output, even if you didn't set
http.version. That's because setting it is only necessary for curl to
send the extra headers in its HTTP/1.1 request that say "Hey, I speak
HTTP/2; upgrade if you do, too". But for a production site speaking
https, the server advertises via ALPN, a TLS extension, that it supports
HTTP/2, and the client can immediately start using it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove spaces in `non - zero` and add a space between the diff
format/mode and option parentheses in difftool's usage strings.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that we've split up the write_sub_test_lib_test*() and
run_sub_test_lib_test*() functions let's fix those tests in
t0000-basic.sh that were verbosely copy/pasting earlier tests.
That we caught all of them was asserted with a follow-up change that's
not part of this series[1], we might add such a duplication check at
some later time, but for now let's just one-off remove the duplicate
boilerplate.
1. https://lore.kernel.org/git/patch-v3-6.9-bc79b29f3c-20210805T103237Z-avarab@gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Improve the testing for test-lib.sh itself to assert that we have a
exit code of 1, not any non-zero. Improves code added in
0445e6f0a1 (test-lib: '--run' to run only specific tests,
2014-04-30).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Refactor the two check_sub_test_lib_test*() functions to avoid
duplicating the same comparison they did of stdout. This duplication
was initially added when check_sub_test_lib_test_err() was added in
0445e6f0a1 (test-lib: '--run' to run only specific tests,
2014-04-30).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The use of a sub-shell for running the test_cmp of stdout/stderr for
the test author was introduced in this form in 565b6fa87b (tests:
refactor mechanics of testing in a sub test-lib, 2012-12-16), but from
looking at the history that seemed to have diligently copied my
original ad-hoc implementation in 7b90511970 (t/t0000-basic.sh: Run
the passing TODO test inside its own test-lib, 2010-08-19).
There's no reason to use a subshell here, we try to avoid it in
general. It also improves readability, if the test fails we print out
the relative path in the trash directory that needs to be looked
at.
Before that was mostly obscured, since the "write_sub_test_lib_test"
will pick the directory for you from the test name.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change the $test_description provided for the generated subtests to be
constant, since the only purpose of having it is that test-lib.sh will
barf if it isn't supplied.
The other purpose of having it was to effectively split up the test
description between the argument to test_expect_success and the
argument to "write_and_run_sub_test_lib_test". Let's only use one of
the two.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Refactor the function to write and run tests of the test-lib.sh output
into two functions.
When this was added back in 565b6fa87b (tests: refactor mechanics of
testing in a sub test-lib, 2012-12-16) there was no reason to do this,
but since we started supporting test arguments in
517cd55fd5 (test-lib: self-test that --verbose works, 2013-06-23)
we've started to write out duplicate tests simply to test different
arguments, now we'll be able to re-use them.
This change doesn't consolidate any of those tests yet, it just makes
it possible to do so. All the changes in t0000-basic.sh are a simple
search-replacement.
Since the _run_sub_test_lib_test_common() function doesn't handle
running the test anymore we can do away with the sub-shell, which was
used to scope an "unset" and "export" shell variables.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some commands such as "git stash" emit continued options output with
e.g. "git stash -h", because usage_with_options_internal() prefixes
with its own whitespace the resulting output wasn't properly
aligned. Let's account for the added whitespace, which properly aligns
the output.
The "git stash" command has usage output with a N_() translation that
legitimately stretches across multiple lines;
N_("git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
" [-u|--include-untracked] [-a|--all] [-m|--message <message>]\n"
[...]
We'd like to have that output aligned with the length of the initial
"git stash " output, but since usage_with_options_internal() adds its
own whitespace prefixing we fell short, before this change we'd emit:
$ git stash -h
usage: git stash list [<options>]
or: git stash show [<options>] [<stash>]
[...]
or: git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]
[-u|--include-untracked] [-a|--all] [-m|--message <message>]
[...]
Now we'll properly emit aligned output. I.e. the last four lines
above will instead be (a whitespace-only change to the above):
[...]
or: git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]
[-u|--include-untracked] [-a|--all] [-m|--message <message>]
[...]
We could also go for an approach where we have the caller support no
padding of their own, i.e. (same as the first example, except for the
padding on the second line):
N_("git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
"[-u|--include-untracked] [-a|--all] [-m|--message <message>]\n"
[...]
But to do that we'll need to find the length of "git stash". We can
discover that from the "cmd" in the "struct cmd_struct", but there
might be cases with sub-commands or "git" itself taking arguments that
would make that non-trivial.
Even if it were I still think this approach is better, because this way
we'll get the same legible alignment in the C code. The fact that
usage_with_options_internal() is adding its own prefix padding is an
implementation detail that callers shouldn't need to worry about.
Implementation notes:
We could skip the string_list_split() with a strchr(str, '\n') check,
but we'd then need to duplicate our state machine for strings that do
and don't contain a "\n". It's simpler to just always split into a
"struct string_list", even though the common case is that that "struct
string_list" will contain only one element. This is not
performance-sensitive code.
This change is relatively more complex since I've accounted for making
it future-proof for RTL translation support. Later in
usage_with_options_internal() we have some existing padding code
dating back to d7a38c54a6 (parse-options: be able to generate usages
automatically, 2007-10-15) which isn't RTL-safe, but that code would
be easy to fix. Let's not introduce new RTL translation problems here.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the "Sending v2" section, readers are directed to create v2 patches
without using --range-diff. However, it is customary to include a
range-diff against the v1 patches as a reviewer aid.
Update the "Sending v2" section to suggest a simple workflow that uses
the --range-diff option. Also include some explanation for -v2 and
--range-diff to help the reader understand the importance.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix a logic error in dfea575017 (Makefile: lazily compute header
dependencies, 2010-01-26) where we'd make whether we cleaned the
.depend dirs contingent on the currently configured
COMPUTE_HEADER_DEPENDENCIES value. Before this running e.g.:
make COMPUTE_HEADER_DEPENDENCIES=yes grep.o
make COMPUTE_HEADER_DEPENDENCIES=no clean
Would leave behind the .depend directory, now it'll be removed.
Normally we'd need to use another variable, but in this case there's
no other uses of $(dep_dirs), as opposed to $(dep_args) which is used
as an argument to $(CC). So just deleting this line makes everything
work correctly.
See http://lore.kernel.org/git/xmqqmto48ufz.fsf@gitster.g for a report
about this issue.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
