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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
	"SZEDER Gábor" <szeder.dev@gmail.com>,
	"René Scharfe" <l.s.r@web.de>,
	"Emily Shaffer" <emilyshaffer@google.com>,
	"Taylor Blau" <me@ttaylorr.com>, "Johannes Sixt" <j6t@kdbg.org>,
	"Carlo Arenas" <carenas@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH v6 8/8] progress.c: add & assert a "global_progress" variable
Date: Tue,  2 Nov 2021 13:27:30 +0100	[thread overview]
Message-ID: <patch-v6-8.8-bff919994b5-20211102T122507Z-avarab@gmail.com> (raw)
In-Reply-To: <cover-v6-0.8-00000000000-20211102T122507Z-avarab@gmail.com>

The progress.c code makes a hard assumption that only one progress bar
be active at a time (see [1] for a bug where this wasn't the
case). Add a BUG() that'll trigger if we ever regress on that promise
and have two progress bars active at the same time.

There was an alternative test-only approach to doing the same
thing[2], but by doing this outside of a GIT_TEST_* mode we'll know
we've put a hard stop to this particular API misuse.

It will also establish scaffolding to address current fundamental
limitations in the progress output: The current output must be
"driven" by calls to the likes of display_progress().

Once we have a global current progress object we'll be able to update
that object via SIGALRM, this will cover cases where we're busy, but
either haven't invoked our first display_progress() yet, or the time
between display_progress() is too long. See [3] for early code to do
that.

The linked code in [3] is WIP and not signal-safe since among other
things it calls sprintf() from within a signal handler, see e.g. "man
7 signal-safety". But on some platforms a real implementation of it
would be able to write() out a prepared-formatted progress update from
within a signal handler. That would be sufficient to e.g. show that
we're "stalled", or to display something like a simple pre-formatted
"spinner".

It's conceivable that this change will hit the BUG() condition in some
scenario that we don't currently have tests for, this would be very
bad. If that happened we'd die just because we couldn't emit some
pretty output.

See [4] for a discussion of why our test coverage is lacking; our
progress display is hidden behind isatty(2) checks in many cases, so
the test suite doesn't cover it unless individual tests are run in
"--verbose" mode, we might also have multi-threaded use of the API, so
two progress bars stopping and starting would only be visible due to a
race condition.

Despite that, I think that this change won't introduce such
regressions, because:

 1. I've read all the code using the progress API (and have modified a
    large part of it in some WIP code I have). Almost all of it is really
    simple, the parts that aren't[5] are complex in the display_progress() part,
    not in starting or stopping the progress bar.

 2. The entire test suite passes when instrumented with an ad-hoc
    Linux-specific mode (it uses gettid()) to die if progress bars are
    ever started or stopped on anything but the main thread[6].

    Extending that to die if display_progress() is called in a thread
    reveals that we have exactly two users of the progress bar under
    threaded conditions, "git index-pack" and "git pack-objects". Both
    uses are straightforward, and they don't start/stop the progress
    bar when threads are active.

 3. I've likewise done an ad-hoc test to force progress bars to be
    displayed with:

        perl -pi -e 's[isatty\(2\)][1]g' $(git grep -l -F 'isatty(2)')

    I.e. to replace all checks (not just for progress) of checking
    whether STDERR is connected to a TTY, and then monkeypatching
    is_foreground_fd() in progress.c to always "return 1". Running the
    tests with those applied, interactively and under -V reveals via:

        $ grep -e set_progress_signal -e clear_progress_signal test-results/*out

    That nothing our tests cover hits the BUG conditions added here,
    except the expected "BUG: start two concurrent progress bars" test
    being added here.

    That isn't entirely true since we won't be getting 100% coverage
    due to cascading failures from tests that expected no progress
    output on stderr. To make sure I covered 100% I also tried making
    the display() function in progress.c a NOOP on top of that (it's
    the calls to start_progress_delay() and stop_progress()) that
    matter.

    That doesn't hit the BUG() either. Some tests fail in that mode
    due to a combination of the overzealous isatty(2) munging noted
    above, and the tests that are testing that the progress output
    itself is present (but for testing I'd made display() a NOOP).

This doesn't address any currently out-of-tree user of progress.c,
i.e. WIP patches, or progress output that's a part of forks of
git.git. Those hopefully have test coverage that would expose the
BUG().

If they don't they'll either run into it in code that displays more
than one progress bar for the lifetime of the progress, or which calls
stop_progress() with a non-NULL "progress" without a corresponding
start_progress(). Both of those cases are less likely than the general
cases of progress.c API misuse.

Between those three points above and the discussion of how this could
impact out-of-tree users I think it's safe to go ahead with this
change.

1. 6f9d5f2fda1 (commit-graph: fix progress of reachable commits, 2020-07-09)
2. https://lore.kernel.org/git/20210620200303.2328957-3-szeder.dev@gmail.com
3. https://lore.kernel.org/git/patch-18.25-e21fc66623f-20210623T155626Z-avarab@gmail.com/
4. https://lore.kernel.org/git/cover-00.25-00000000000-20210623T155626Z-avarab@gmail.com/
5. b50c37aa44d (Merge branch 'ab/progress-users-adjust-counters' into
   next, 2021-09-10)
6. https://lore.kernel.org/git/877dffg37n.fsf@evledraar.gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 progress.c                  | 18 ++++++++++++++++++
 t/t0500-progress-display.sh | 11 +++++++++++
 2 files changed, 29 insertions(+)

diff --git a/progress.c b/progress.c
index 76a95cb7322..7483aec2e2a 100644
--- a/progress.c
+++ b/progress.c
@@ -46,6 +46,7 @@ struct progress {
 };
 
 static volatile sig_atomic_t progress_update;
+static struct progress *global_progress;
 
 /*
  * These are only intended for testing the progress output, i.e. exclusively
@@ -249,6 +250,14 @@ void display_progress(struct progress *progress, uint64_t n)
 		display(progress, n, NULL);
 }
 
+static void set_global_progress(struct progress *progress)
+{
+	if (global_progress)
+		BUG("'%s' progress still active when trying to start '%s'",
+		    global_progress->title, progress->title);
+	global_progress = progress;
+}
+
 static struct progress *start_progress_delay(const char *title, uint64_t total,
 					     unsigned delay, unsigned sparse)
 {
@@ -264,6 +273,7 @@ static struct progress *start_progress_delay(const char *title, uint64_t total,
 	strbuf_init(&progress->counters_sb, 0);
 	progress->title_len = utf8_strwidth(title);
 	progress->split = 0;
+	set_global_progress(progress);
 	set_progress_signal();
 	trace2_region_enter("progress", title, the_repository);
 	return progress;
@@ -340,6 +350,13 @@ void stop_progress(struct progress **p_progress)
 	stop_progress_msg(p_progress, _("done"));
 }
 
+static void unset_global_progress(void)
+{
+	if (!global_progress)
+		BUG("should have active global_progress when cleaning up");
+	global_progress = NULL;
+}
+
 void stop_progress_msg(struct progress **p_progress, const char *msg)
 {
 	struct progress *progress;
@@ -369,6 +386,7 @@ void stop_progress_msg(struct progress **p_progress, const char *msg)
 		free(buf);
 	}
 	clear_progress_signal();
+	unset_global_progress();
 	strbuf_release(&progress->counters_sb);
 	if (progress->throughput)
 		strbuf_release(&progress->throughput->display);
diff --git a/t/t0500-progress-display.sh b/t/t0500-progress-display.sh
index 59e9f226ea4..867fdace3f2 100755
--- a/t/t0500-progress-display.sh
+++ b/t/t0500-progress-display.sh
@@ -298,6 +298,17 @@ test_expect_success 'cover up after throughput shortens a lot' '
 	test_cmp expect out
 '
 
+test_expect_success 'BUG: start two concurrent progress bars' '
+	cat >in <<-\EOF &&
+	start 0 one
+	start 0 two
+	EOF
+
+	test_must_fail test-tool progress \
+		<in 2>stderr &&
+	grep "^BUG: .*'\''one'\'' progress still active when trying to start '\''two'\''$" stderr
+'
+
 test_expect_success 'progress generates traces' '
 	cat >in <<-\EOF &&
 	start 40
-- 
2.33.1.1570.g069344fdd45


  parent reply	other threads:[~2021-11-02 12:28 UTC|newest]

Thread overview: 197+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-20 20:02 [PATCH 0/7] progress: verify progress counters in the test suite SZEDER Gábor
2021-06-20 20:02 ` [PATCH 1/7] progress: introduce GIT_TEST_CHECK_PROGRESS to verify progress counters SZEDER Gábor
2021-06-21  7:09   ` Ævar Arnfjörð Bjarmason
2021-06-22 15:55   ` Taylor Blau
2021-06-20 20:02 ` [PATCH 2/7] progress: catch nested/overlapping progresses with GIT_TEST_CHECK_PROGRESS SZEDER Gábor
2021-06-22 16:00   ` Taylor Blau
2021-08-30 21:15     ` SZEDER Gábor
2021-06-20 20:02 ` [PATCH 3/7] progress: catch backwards counting " SZEDER Gábor
2021-06-20 20:03 ` [PATCH 4/7] commit-graph: fix bogus counter in "Scanning merged commits" progress line SZEDER Gábor
2021-06-20 22:13   ` Ævar Arnfjörð Bjarmason
2021-06-21 18:32     ` René Scharfe
2021-06-21 20:08       ` Ævar Arnfjörð Bjarmason
2021-06-26  8:27         ` René Scharfe
2021-06-26 14:11           ` Ævar Arnfjörð Bjarmason
2021-06-26 20:22             ` René Scharfe
2021-06-26 21:38               ` Ævar Arnfjörð Bjarmason
2021-07-04 12:15                 ` René Scharfe
2021-07-05 14:09                   ` Junio C Hamano
2021-07-05 23:28                   ` Ævar Arnfjörð Bjarmason
2021-07-06 16:02                     ` René Scharfe
2021-06-27 17:31               ` Felipe Contreras
2021-06-20 20:03 ` [PATCH 5/7] entry: show finer-grained counter in "Filtering content" " SZEDER Gábor
2021-06-20 20:03 ` [PATCH 6/7] [RFC] entry: don't show "Filtering content: ... done." line in case of errors SZEDER Gábor
2021-06-21 18:32   ` René Scharfe
2021-06-23  1:52     ` Taylor Blau
2021-08-30 21:17       ` SZEDER Gábor
2021-06-20 20:03 ` [PATCH 7/7] test-lib: enable GIT_TEST_CHECK_PROGRESS by default SZEDER Gábor
2021-06-21  0:59 ` [PATCH 0/7] progress: verify progress counters in the test suite Ævar Arnfjörð Bjarmason
2021-06-23  2:04   ` Taylor Blau
2021-06-23 17:48     ` [PATCH 00/25] progress.c: various fixes + SZEDER's RFC code Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 01/25] progress.c tests: fix breakage with COLUMNS != 80 Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 02/25] progress.c tests: make start/stop verbs on stdin Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 03/25] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 04/25] progress.c tests: add a "signal" verb Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 05/25] progress.c: move signal handler functions lower Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 06/25] progress.c: call progress_interval() from progress_test_force_update() Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 07/25] progress.c: stop eagerly fflush(stderr) when not a terminal Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 08/25] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 09/25] midx perf: add a perf test for multi-pack-index Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 10/25] progress.c: remove the "sparse" mode nano-optimization Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 11/25] pack-bitmap-write.c: add a missing stop_progress() Ævar Arnfjörð Bjarmason
2021-09-17  5:14         ` SZEDER Gábor
2021-09-17  5:56           ` Ævar Arnfjörð Bjarmason
2021-09-17 21:38             ` SZEDER Gábor
2021-06-23 17:48       ` [PATCH 12/25] progress.c: add & assert a "global_progress" variable Ævar Arnfjörð Bjarmason
2021-09-16 18:31         ` SZEDER Gábor
2021-06-23 17:48       ` [PATCH 13/25] progress.[ch]: move the "struct progress" to the header Ævar Arnfjörð Bjarmason
2021-09-16 19:42         ` SZEDER Gábor
2021-06-23 17:48       ` [PATCH 14/25] progress.[ch]: move test-only code away from "extern" variables Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 15/25] progress.c: pass "is done?" (again) to display() Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 16/25] progress.[ch]: convert "title" to "struct strbuf" Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 17/25] progress.c: refactor display() for less confusion, and fix bug Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 18/25] progress.c: emit progress on first signal, show "stalled" Ævar Arnfjörð Bjarmason
2021-09-16 18:37         ` SZEDER Gábor
2021-06-23 17:48       ` [PATCH 19/25] commit-graph: fix bogus counter in "Scanning merged commits" progress line Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 20/25] midx: don't provide a total for QSORT() progress Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 21/25] entry: show finer-grained counter in "Filtering content" progress line Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [PATCH 22/25] progress.c: add a stop_progress_early() function Ævar Arnfjörð Bjarmason
2021-06-24 10:35         ` Ævar Arnfjörð Bjarmason
2021-06-25  1:24         ` Andrei Rybak
2021-06-23 17:48       ` [PATCH 23/25] entry: deal with unexpected "Filtering content" total Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [RFC/PATCH 24/25] progress: assert last update in stop_progress() Ævar Arnfjörð Bjarmason
2021-06-23 17:48       ` [RFC/PATCH 25/25] progress: assert counting upwards in display() Ævar Arnfjörð Bjarmason
2021-06-23 17:59       ` [PATCH 00/25] progress.c: various fixes + SZEDER's RFC code Randall S. Becker
2021-06-23 20:01         ` Ævar Arnfjörð Bjarmason
2021-06-23 20:25           ` Randall S. Becker
2021-06-23 21:57 ` [PATCH 0/4] WIP/POC check isatty(2)-protected progress lines SZEDER Gábor
2021-06-23 21:57   ` [PATCH 1/4] WIP progress, isatty(2), hidden progress lnies for GIT_TEST_CHECK_PROGRESS SZEDER Gábor
2021-06-23 21:57   ` [PATCH 2/4] blame: fix progress total with line ranges SZEDER Gábor
2021-06-23 21:57   ` [PATCH 3/4] read-cache: avoid overlapping progress lines SZEDER Gábor
2021-06-23 21:57   ` [PATCH 4/4] preload-index: fix "Refreshing index" progress line SZEDER Gábor
2021-06-23 22:11   ` [PATCH 0/4] WIP/POC check isatty(2)-protected progress lines SZEDER Gábor
2021-06-24 10:43     ` Ævar Arnfjörð Bjarmason
2021-06-24 10:45   ` Ævar Arnfjörð Bjarmason
2021-07-22 12:20 ` [PATCH 0/3] progress.c API users: fix bogus counting Ævar Arnfjörð Bjarmason
2021-07-22 12:20   ` [PATCH 1/3] commit-graph: fix bogus counter in "Scanning merged commits" progress line Ævar Arnfjörð Bjarmason
2021-07-23 21:55     ` Junio C Hamano
2021-08-02 21:07     ` SZEDER Gábor
2021-07-22 12:20   ` [PATCH 2/3] midx: don't provide a total for QSORT() progress Ævar Arnfjörð Bjarmason
2021-07-23 21:56     ` Junio C Hamano
2021-08-05 15:07     ` Phillip Wood
2021-08-05 19:07       ` Ævar Arnfjörð Bjarmason
2021-07-22 12:20   ` [PATCH 3/3] entry: show finer-grained counter in "Filtering content" progress line Ævar Arnfjörð Bjarmason
2021-07-23 22:01     ` Junio C Hamano
2021-08-02 22:05       ` SZEDER Gábor
2021-08-02 21:48     ` SZEDER Gábor
2021-08-05 11:01   ` [PATCH v2 0/3] progress.c API users: fix bogus counting Ævar Arnfjörð Bjarmason
2021-08-05 11:01     ` [PATCH v2 1/3] commit-graph: fix bogus counter in "Scanning merged commits" progress line Ævar Arnfjörð Bjarmason
2021-08-05 11:01     ` [PATCH v2 2/3] midx: don't provide a total for QSORT() progress Ævar Arnfjörð Bjarmason
2021-08-05 11:01     ` [PATCH v2 3/3] entry: show finer-grained counter in "Filtering content" progress line Ævar Arnfjörð Bjarmason
2021-08-23 10:29     ` [PATCH v3 0/2] progress.c API users: fix bogus counting Ævar Arnfjörð Bjarmason
2021-08-23 10:29       ` [PATCH v3 1/2] commit-graph: fix bogus counter in "Scanning merged commits" progress line Ævar Arnfjörð Bjarmason
2021-08-23 10:29       ` [PATCH v3 2/2] entry: show finer-grained counter in "Filtering content" " Ævar Arnfjörð Bjarmason
2021-09-09  1:10       ` [PATCH v4 0/2] progress.c API users: fix bogus counting Ævar Arnfjörð Bjarmason
2021-09-09  1:10         ` [PATCH v4 1/2] commit-graph: fix bogus counter in "Scanning merged commits" progress line Ævar Arnfjörð Bjarmason
2021-09-09  1:10         ` [PATCH v4 2/2] entry: show finer-grained counter in "Filtering content" " Ævar Arnfjörð Bjarmason
2021-09-09 20:02         ` [PATCH v4 0/2] progress.c API users: fix bogus counting Junio C Hamano
2021-07-22 12:54 ` [PATCH 0/8] progress: assert "global_progress" + test fixes / cleanup Ævar Arnfjörð Bjarmason
2021-07-22 12:54   ` [PATCH 1/8] progress.c tests: make start/stop verbs on stdin Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 2/8] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 3/8] progress.c: move signal handler functions lower Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 4/8] progress.c: call progress_interval() from progress_test_force_update() Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 5/8] progress.c: stop eagerly fflush(stderr) when not a terminal Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 6/8] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 7/8] pack-bitmap-write.c: add a missing stop_progress() Ævar Arnfjörð Bjarmason
2021-07-22 12:55   ` [PATCH 8/8] progress.c: add & assert a "global_progress" variable Ævar Arnfjörð Bjarmason
2021-09-16 21:34     ` [PATCH 12/25] " Ævar Arnfjörð Bjarmason
2021-07-23 22:02   ` [PATCH 0/8] progress: assert "global_progress" + test fixes / cleanup Junio C Hamano
2021-09-20 23:09   ` [PATCH v2 " Ævar Arnfjörð Bjarmason
2021-09-20 23:09     ` [PATCH v2 1/8] progress.c tests: make start/stop verbs on stdin Ævar Arnfjörð Bjarmason
2021-10-08  3:43       ` Emily Shaffer
2021-09-20 23:09     ` [PATCH v2 2/8] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-10-08  3:53       ` Emily Shaffer
2021-09-20 23:09     ` [PATCH v2 3/8] progress.c: move signal handler functions lower Ævar Arnfjörð Bjarmason
2021-09-20 23:09     ` [PATCH v2 4/8] progress.c: call progress_interval() from progress_test_force_update() Ævar Arnfjörð Bjarmason
2021-09-20 23:09     ` [PATCH v2 5/8] progress.c: stop eagerly fflush(stderr) when not a terminal Ævar Arnfjörð Bjarmason
2021-10-08  3:59       ` Emily Shaffer
2021-10-08  7:01         ` Ævar Arnfjörð Bjarmason
2021-09-20 23:09     ` [PATCH v2 6/8] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-10-08  4:02       ` Emily Shaffer
2021-09-20 23:09     ` [PATCH v2 7/8] pack-bitmap-write.c: add a missing stop_progress() Ævar Arnfjörð Bjarmason
2021-10-08  4:04       ` Emily Shaffer
2021-10-08 12:14         ` Ævar Arnfjörð Bjarmason
2021-10-10 21:29       ` SZEDER Gábor
2021-09-20 23:09     ` [PATCH v2 8/8] progress.c: add & assert a "global_progress" variable Ævar Arnfjörð Bjarmason
2021-10-08  4:18       ` Emily Shaffer
2021-10-08  7:15         ` Ævar Arnfjörð Bjarmason
2021-10-13 22:28     ` [PATCH v3 00/10] progress: assert "global_progress" + test fixes / cleanup Ævar Arnfjörð Bjarmason
2021-10-13 22:28       ` [PATCH v3 01/10] leak tests: fix a memory leaks in "test-progress" helper Ævar Arnfjörð Bjarmason
2021-10-13 22:28       ` [PATCH v3 02/10] progress.c test helper: add missing braces Ævar Arnfjörð Bjarmason
2021-10-13 22:28       ` [PATCH v3 03/10] progress.c tests: make start/stop verbs on stdin Ævar Arnfjörð Bjarmason
2021-10-21 22:30         ` SZEDER Gábor
2021-10-22 14:18           ` Ævar Arnfjörð Bjarmason
2021-10-22 22:14             ` Taylor Blau
2021-10-24 20:10               ` SZEDER Gábor
2021-10-22  3:34         ` Emily Shaffer
2021-10-13 22:28       ` [PATCH v3 04/10] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-10-13 22:28       ` [PATCH v3 05/10] progress.c: move signal handler functions lower Ævar Arnfjörð Bjarmason
2021-10-13 22:28       ` [PATCH v3 06/10] progress.c: call progress_interval() from progress_test_force_update() Ævar Arnfjörð Bjarmason
2021-10-22 22:28         ` Taylor Blau
2021-10-13 22:28       ` [PATCH v3 07/10] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-10-22 22:37         ` Taylor Blau
2021-10-13 22:28       ` [PATCH v3 08/10] pack-bitmap-write.c: don't return without stop_progress() Ævar Arnfjörð Bjarmason
2021-10-22  3:37         ` Emily Shaffer
2021-10-22 22:47         ` Taylor Blau
2021-10-13 22:28       ` [PATCH v3 09/10] various *.c: use isatty(1|2), not isatty(STDIN_FILENO|STDERR_FILENO) Ævar Arnfjörð Bjarmason
2021-10-22  3:39         ` Emily Shaffer
2021-10-13 22:28       ` [PATCH v3 10/10] progress.c: add & assert a "global_progress" variable Ævar Arnfjörð Bjarmason
2021-10-22  3:42         ` Emily Shaffer
2021-10-25  5:02         ` SZEDER Gábor
2021-10-25  9:38           ` Junio C Hamano
2021-12-02 23:14             ` SZEDER Gábor
2021-12-03 10:29               ` Ævar Arnfjörð Bjarmason
2021-10-25 11:06           ` Ævar Arnfjörð Bjarmason
2021-10-22  3:44       ` [PATCH v3 00/10] progress: assert "global_progress" + test fixes / cleanup Emily Shaffer
2021-10-22 14:21         ` Ævar Arnfjörð Bjarmason
2021-10-25 11:24       ` [PATCH v4 0/8] " Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 1/8] leak tests: fix a memory leaks in "test-progress" helper Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 2/8] progress.c test helper: add missing braces Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 3/8] progress.c tests: make start/stop commands on stdin Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 4/8] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 5/8] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 6/8] pack-bitmap-write.c: don't return without stop_progress() Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 7/8] various *.c: use isatty(1|2), not isatty(STDIN_FILENO|STDERR_FILENO) Ævar Arnfjörð Bjarmason
2021-10-25 11:25         ` [PATCH v4 8/8] progress.c: add & assert a "global_progress" variable Ævar Arnfjörð Bjarmason
2021-10-25 11:53           ` Johannes Sixt
2021-10-25 12:29             ` Ævar Arnfjörð Bjarmason
2021-11-01 19:09         ` [PATCH v5 0/8] progress: assert "global_progress" + test fixes / cleanup Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 1/8] leak tests: fix a memory leaks in "test-progress" helper Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 2/8] progress.c test helper: add missing braces Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 3/8] progress.c tests: make start/stop commands on stdin Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 4/8] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 5/8] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 6/8] pack-bitmap-write.c: don't return without stop_progress() Ævar Arnfjörð Bjarmason
2021-11-01 19:09           ` [PATCH v5 7/8] various *.c: use isatty(1|2), not isatty(STDIN_FILENO|STDERR_FILENO) Ævar Arnfjörð Bjarmason
2021-11-02  0:58             ` Carlo Arenas
2021-11-01 19:09           ` [PATCH v5 8/8] progress.c: add & assert a "global_progress" variable Ævar Arnfjörð Bjarmason
2021-11-02 12:27           ` [PATCH v6 0/8] progress: assert "global_progress" + test fixes / cleanup Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 1/8] leak tests: fix a memory leaks in "test-progress" helper Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 2/8] progress.c test helper: add missing braces Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 3/8] progress.c tests: make start/stop commands on stdin Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 4/8] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 5/8] progress.c: add temporary variable from progress struct Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 6/8] pack-bitmap-write.c: don't return without stop_progress() Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` [PATCH v6 7/8] various *.c: use isatty(0|2), not isatty(STDIN_FILENO|STDERR_FILENO) Ævar Arnfjörð Bjarmason
2021-11-02 12:27             ` Ævar Arnfjörð Bjarmason [this message]
2022-02-03 21:40             ` [PATCH v9 0/9] progress: test fixes / cleanup Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 1/9] leak tests: fix a memory leak in "test-progress" helper Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 2/9] progress.c test helper: add missing braces Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 3/9] progress.c tests: make start/stop commands on stdin Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 4/9] progress.c tests: test some invalid usage Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 5/9] progress.h: format and be consistent with progress.c naming Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 6/9] progress.c: use dereferenced "progress" variable, not "(*p_progress)" Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 7/9] progress.c: refactor stop_progress{,_msg}() to use helpers Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 8/9] progress API: unify stop_progress{,_msg}(), fix trace2 bug Ævar Arnfjörð Bjarmason
2022-02-03 21:40               ` [PATCH v9 9/9] pack-bitmap-write.c: don't return without stop_progress() Ævar Arnfjörð Bjarmason
2022-02-03 23:39               ` [PATCH v9 0/9] progress: test fixes / cleanup Junio C Hamano

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