diff mbox series

[v2] status: long status advice adapted to recent capabilities

Message ID pull.1384.v2.git.1667002005494.gitgitgadget@gmail.com (mailing list archive)
State Superseded
Headers show
Series [v2] status: long status advice adapted to recent capabilities | expand

Commit Message

Rudy Rigot Oct. 29, 2022, 12:06 a.m. UTC
From: Rudy Rigot <rudy.rigot@gmail.com>

Currently, if git-status takes more than 2 seconds for enumerating untracked
files, a piece of advice is given to the user to consider ignoring untracked
files. But Git now offers more possibilities to resolve that situation
(untracked cache, fsmonitor) with different downsides.

This change is about refreshing that advice message. A new section in the
documentation is introduced to present the possibilities, and the advice
message links to it. I'm also introducing tests for this advice message,
which was untested so far.

One of the downsides of untracked cache / fsmonitor, is that the first call
may be long in order to generate the cache, but the user may not know what
their current configuration is. When collecting feedback from users of our
very large repo, that's the most common point of confusion that keeps coming
back: people complain about git status being slow, but are satisfied when
we inform them that it's being cached and they should run it again to check.
As a result, the advice message tries to keep them informed of their current
configuration.

Signed-off-by: Rudy Rigot <rudy.rigot@gmail.com>
---
    status: long status advice adapted to recent capabilities
    
    Here is version 2 for this patch to change the long status advice to
    adapt to recent capabilities (untracked cache, FSMonitor).
    
    Clerical note: I /preview'd this with GitGitGadget, and this seems to be
    expressed as a patch on top of my first patch ("Range-diff vs v1")
    first, before showing the actual patch as refreshed. I'm assuming that
    is what is expected, please let me know if I'm doing this wrong.
    
    Changes since v1:
    
     * Introduced a new section in git status's docs to explain the various
       options, that the new advice can link to. I realized there's already
       solid details about untracked cache and fsmonitor in the
       update-index's docs, so I kept the new section very high-level and
       strategic, linking to update-index's docs for more details. I don't
       think anything's inaccurate, but I really could use some eyes on this
       anyway to be sure.
     * Changed the advice message depending on context (see test files to
       see every possible phrasing the end user can meet). I am very open to
       feedback, of course. One of my priorities was to keep the
       already-optimized user in the loop about what optimizations they may
       already have, in case they're only seeing this message because it's
       the git status run that did the first caching, since that's what's
       been confusing our users when using fsmonitor.
     * Introduced tests for all this. I chose to simulate the slowness
       thanks to a an environment variable rather than a symbol, just
       because it was also helpful to set it from the outside at dev time,
       but I'm not strongly opinionated about whether it should be one or
       the other.
     * Removed the advice.statusFsmonitor config I had introduced in v1,
       since it's all one short consolidated advice message now.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1384%2Frudyrigot%2Fadvice_statusFsmonitor-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1384/rudyrigot/advice_statusFsmonitor-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/1384

Range-diff vs v1:

 1:  cc372e7c9d0 ! 1:  9ef7f1834b7 fsmonitor: long status advice adapted to the fsmonitor use case
     @@ Metadata
      Author: Rudy Rigot <rudy.rigot@gmail.com>
      
       ## Commit message ##
     -    fsmonitor: long status advice adapted to the fsmonitor use case
     +    status: long status advice adapted to recent capabilities
      
     -    Currently, if git-status takes more than 2 seconds for enumerating
     -    untracked files, a piece of advice is given to the user to consider
     -    ignoring untracked files. This is somewhat at odds with the UX
     -    upsides from having fsmonitor enabled, since fsmonitor will be
     -    here to take care of mitigating the performance downsides from
     -    those untracked files.
     +    Currently, if git-status takes more than 2 seconds for enumerating untracked
     +    files, a piece of advice is given to the user to consider ignoring untracked
     +    files. But Git now offers more possibilities to resolve that situation
     +    (untracked cache, fsmonitor) with different downsides.
      
     -    I considered just suppressing that piece of advice entirely for
     -    repositories with fsmonitor disabled, but I decided to replace
     -    it with another piece of advice instead, letting the user know
     -    that this run may have been slow, but the next ones should be faster.
     -    Of course, please let me know if the phrasing can be improved. To
     -    keep consistent with other pieces of advice, this new one can be
     -    hidden with a new advice.statusFsmonitor config.
     +    This change is about refreshing that advice message. A new section in the
     +    documentation is introduced to present the possibilities, and the advice
     +    message links to it. I'm also introducing tests for this advice message,
     +    which was untested so far.
      
     -    If the repository does not have fsmonitor enabled, or if the new
     -    piece of advice is hidden by config, the behavior falls back to
     -    today's behavior: show the message advising to ignore untracked
     -    files, as long as it wasn't disabled with the existing advice.statusUoption
     -    config.
     -
     -    Test-wise, I tried to figure out ways to mock the behavior of a
     -    slow git-status, but I couldn't figure it out, so I could use some
     -    advice. I tracked down Commit 6a38ef2ced (status: advise to consider
     -    use of -u when read_directory takes too long, 2013-03-13), and it
     -    also didn't have tests, so I'm questioning whether it can in fact
     -    be reasonably done. Thanks in advance for any guidance.
     +    One of the downsides of untracked cache / fsmonitor, is that the first call
     +    may be long in order to generate the cache, but the user may not know what
     +    their current configuration is. When collecting feedback from users of our
     +    very large repo, that's the most common point of confusion that keeps coming
     +    back: people complain about git status being slow, but are satisfied when
     +    we inform them that it's being cached and they should run it again to check.
     +    As a result, the advice message tries to keep them informed of their current
     +    configuration.
      
          Signed-off-by: Rudy Rigot <rudy.rigot@gmail.com>
      
     - ## Documentation/config/advice.txt ##
     -@@ Documentation/config/advice.txt: advice.*::
     - 		and that calculation takes longer than expected. Will not
     - 		appear if `status.aheadBehind` is false or the option
     - 		`--no-ahead-behind` is given.
     -+	statusFsmonitor::
     -+		Shown when the linkgit:git-status[1] command takes more than
     -+		2 seconds to enumerate untracked files, and fsmonitor is enabled.
     - 	statusHints::
     - 		Show directions on how to proceed from the current
     - 		state in the output of linkgit:git-status[1], in
     + ## Documentation/git-status.txt ##
     +@@ Documentation/git-status.txt: during the write may conflict with other simultaneous processes, causing
     + them to fail. Scripts running `status` in the background should consider
     + using `git --no-optional-locks status` (see linkgit:git[1] for details).
     + 
     ++UNTRACKED FILES AND STATUS SPEED
     ++--------------------------------
     ++
     ++If your untracked files take an unusual amount of time to enumerate, your
     ++repository certainly has a lot of them, and an advice message will display
     ++about it. Here are some configurations to consider in order to improve the
     ++situation:
     ++
     ++* Setting the `core.untrackedCache` configuration as `true` will allow for
     ++`git status` to keep track of the mtime of folders, in order to cache past
     ++`status` results and be sure to only browse folders that changed on subsequent
     ++runs, for filesystems that can support it (see linkgit:git-update-index[1]
     ++for details).
     ++* Used in conjonction with `core.untrackedCache`, setting the `core.fsmonitor`
     ++configuration as `true` will allow for `git status` to keep track of what
     ++files recently changed, in order to cache past `status` results and be sure
     ++to only focus on those files on subsequent runs (see linkgit:git-update-index[1]
     ++for details).
     ++* If none of the above options are satisfactory, setting the
     ++`status.showUntrackedFiles` configuration as `no` will cause `git status`
     ++to not attempt to list untracked files anymore, in which case you have to be
     ++careful not to forget to add new files yourself.
     ++
     ++If none of the above solutions are satisfactory, and you are bothered with
     ++the advice message, you can disable it by setting the `advice.statusUoption`
     ++configuration to `false`.
     ++
     + SEE ALSO
     + --------
     + linkgit:gitignore[5]
     +
     + ## t/t7065-wtstatus-slow.sh (new) ##
     +@@
     ++#!/bin/sh
     ++
     ++test_description='test status when slow untracked files'
     ++
     ++. ./test-lib.sh
     ++
     ++DATA="$TEST_DIRECTORY/t7065"
     ++
     ++GIT_TEST_UF_DELAY_WARNING=1
     ++export GIT_TEST_UF_DELAY_WARNING
     ++
     ++test_expect_success setup '
     ++	git checkout -b test
     ++'
     ++
     ++test_expect_success 'when core.untrackedCache and fsmonitor are unset' '
     ++	test_must_fail git config --get core.untrackedCache &&
     ++	test_must_fail git config --get core.fsmonitor &&
     ++    git status | sed "s/[0-9]\.[0-9][0-9]/X/g" >../actual &&
     ++    test_cmp "$DATA/no_untrackedcache_no_fsmonitor" ../actual &&
     ++    rm -fr ../actual
     ++'
     ++
     ++test_expect_success 'when core.untrackedCache true, but not fsmonitor' '
     ++    git config core.untrackedCache true &&
     ++	test_must_fail git config --get core.fsmonitor &&
     ++    git status | sed "s/[0-9]\.[0-9][0-9]/X/g" >../actual &&
     ++    test_cmp "$DATA/with_untrackedcache_no_fsmonitor" ../actual &&
     ++    rm -fr ../actual
     ++'
     ++
     ++test_expect_success 'when core.untrackedCache true, and fsmonitor' '
     ++    git config core.untrackedCache true &&
     ++	git config core.fsmonitor true &&
     ++    git status | sed "s/[0-9]\.[0-9][0-9]/X/g" >../actual &&
     ++    test_cmp "$DATA/with_untrackedcache_with_fsmonitor" ../actual &&
     ++    rm -fr ../actual
     ++'
     ++
     ++test_done
     + \ No newline at end of file
      
     - ## advice.c ##
     -@@ advice.c: static struct {
     - 	[ADVICE_SET_UPSTREAM_FAILURE]			= { "setUpstreamFailure", 1 },
     - 	[ADVICE_SKIPPED_CHERRY_PICKS]			= { "skippedCherryPicks", 1 },
     - 	[ADVICE_STATUS_AHEAD_BEHIND_WARNING]		= { "statusAheadBehindWarning", 1 },
     -+	[ADVICE_STATUS_FSMONITOR]			= { "statusFsmonitor", 1 },
     - 	[ADVICE_STATUS_HINTS]				= { "statusHints", 1 },
     - 	[ADVICE_STATUS_U_OPTION]			= { "statusUoption", 1 },
     - 	[ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE] = { "submoduleAlternateErrorStrategyDie", 1 },
     + ## t/t7065/no_untrackedcache_no_fsmonitor (new) ##
     +@@
     ++On branch test
     ++
     ++No commits yet
     ++
     ++
     ++It took X seconds to enumerate untracked files.
     ++See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed
     ++for configuration options that may improve that time.
     ++
     ++nothing to commit (create/copy files and use "git add" to track)
      
     - ## advice.h ##
     -@@ advice.h: struct string_list;
     - 	ADVICE_SEQUENCER_IN_USE,
     - 	ADVICE_SET_UPSTREAM_FAILURE,
     - 	ADVICE_STATUS_AHEAD_BEHIND_WARNING,
     -+	ADVICE_STATUS_FSMONITOR,
     - 	ADVICE_STATUS_HINTS,
     - 	ADVICE_STATUS_U_OPTION,
     - 	ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE,
     + ## t/t7065/with_untrackedcache_no_fsmonitor (new) ##
     +@@
     ++On branch test
     ++
     ++No commits yet
     ++
     ++
     ++It took X seconds to enumerate untracked files,
     ++but this is currently being cached, with fsmonitor OFF.
     ++See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed
     ++for configuration options that may improve that time.
     ++
     ++nothing to commit (create/copy files and use "git add" to track)
     +
     + ## t/t7065/with_untrackedcache_with_fsmonitor (new) ##
     +@@
     ++On branch test
     ++
     ++No commits yet
     ++
     ++
     ++It took X seconds to enumerate untracked files,
     ++but this is currently being cached, with fsmonitor ON.
     ++See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed
     ++for configuration options that may improve that time.
     ++
     ++nothing to commit (create/copy files and use "git add" to track)
      
       ## wt-status.c ##
      @@
     @@ wt-status.c
      +#include "fsmonitor-settings.h"
       
       #define AB_DELAY_WARNING_IN_MS (2 * 1000)
     ++#define UF_DELAY_WARNING_IN_MS (2 * 1000)
     + 
     + static const char cut_line[] =
     + "------------------------ >8 ------------------------\n";
     +@@ wt-status.c: static void wt_longstatus_print_tracking(struct wt_status *s)
     + 	strbuf_release(&sb);
     + }
       
     ++static inline int uf_was_slow(uint32_t untracked_in_ms)
     ++{
     ++	const char *x;
     ++	x = getenv("GIT_TEST_UF_DELAY_WARNING");
     ++	if (x) {
     ++		untracked_in_ms += UF_DELAY_WARNING_IN_MS + 1;
     ++	}
     ++
     ++	return UF_DELAY_WARNING_IN_MS < untracked_in_ms;
     ++}
     ++
     + static void show_merge_in_progress(struct wt_status *s,
     + 				   const char *color)
     + {
      @@ wt-status.c: static void wt_longstatus_print(struct wt_status *s)
       {
       	const char *branch_color = color(WT_STATUS_ONBRANCH, s);
     @@ wt-status.c: static void wt_longstatus_print(struct wt_status *s)
      -					   "may speed it up, but you have to be careful not to forget to add\n"
      -					   "new files yourself (see 'git help status')."),
      -					 s->untracked_in_ms / 1000.0);
     -+		if (2000 < s->untracked_in_ms) {
     -+			if (advice_enabled(ADVICE_STATUS_FSMONITOR) && fsm_mode > FSMONITOR_MODE_DISABLED) {
     ++		if (uf_was_slow(s->untracked_in_ms)) {
     ++			if (advice_enabled(ADVICE_STATUS_U_OPTION)) {
      +				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
     ++				if (s->repo->settings.core_untracked_cache == UNTRACKED_CACHE_WRITE) {
     ++					status_printf_ln(s, GIT_COLOR_NORMAL,
     ++							_("It took %.2f seconds to enumerate untracked files,\n"
     ++							"but this is currently being cached, with fsmonitor %s."),
     ++							s->untracked_in_ms / 1000.0,
     ++							(fsm_mode > FSMONITOR_MODE_DISABLED) ? "ON" : "OFF");
     ++				} else {
     ++					status_printf_ln(s, GIT_COLOR_NORMAL,
     ++							_("It took %.2f seconds to enumerate untracked files."),
     ++							s->untracked_in_ms / 1000.0);
     ++				}
      +				status_printf_ln(s, GIT_COLOR_NORMAL,
     -+						_("It took a while to check your git status this time, but the results\n"
     -+						"were cached, and your next runs should be faster."));
     -+			} else if (advice_enabled(ADVICE_STATUS_U_OPTION)) {
     ++						_("See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed\n"
     ++						"for configuration options that may improve that time."));
      +				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
     -+				status_printf_ln(s, GIT_COLOR_NORMAL,
     -+						_("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
     -+						"may speed it up, but you have to be careful not to forget to add\n"
     -+						"new files yourself (see 'git help status')."),
     -+						s->untracked_in_ms / 1000.0);
      +			}
       		}
       	} else if (s->committable)


 Documentation/git-status.txt               | 27 +++++++++++++++
 t/t7065-wtstatus-slow.sh                   | 40 ++++++++++++++++++++++
 t/t7065/no_untrackedcache_no_fsmonitor     | 10 ++++++
 t/t7065/with_untrackedcache_no_fsmonitor   | 11 ++++++
 t/t7065/with_untrackedcache_with_fsmonitor | 11 ++++++
 wt-status.c                                | 40 ++++++++++++++++++----
 6 files changed, 132 insertions(+), 7 deletions(-)
 create mode 100755 t/t7065-wtstatus-slow.sh
 create mode 100644 t/t7065/no_untrackedcache_no_fsmonitor
 create mode 100644 t/t7065/with_untrackedcache_no_fsmonitor
 create mode 100644 t/t7065/with_untrackedcache_with_fsmonitor


base-commit: bbe21b64a08f89475d8a3818e20c111378daa621

Comments

Jeff Hostetler Nov. 2, 2022, 7:45 p.m. UTC | #1
On 10/28/22 8:06 PM, Rudy Rigot via GitGitGadget wrote:
> From: Rudy Rigot <rudy.rigot@gmail.com>
> 
> Currently, if git-status takes more than 2 seconds for enumerating untracked
> files, a piece of advice is given to the user to consider ignoring untracked
> files. But Git now offers more possibilities to resolve that situation
> (untracked cache, fsmonitor) with different downsides.
> 
> This change is about refreshing that advice message. A new section in the
> documentation is introduced to present the possibilities, and the advice
> message links to it. I'm also introducing tests for this advice message,
> which was untested so far.
> 
> One of the downsides of untracked cache / fsmonitor, is that the first call
> may be long in order to generate the cache, but the user may not know what
> their current configuration is. When collecting feedback from users of our
> very large repo, that's the most common point of confusion that keeps coming
> back: people complain about git status being slow, but are satisfied when
> we inform them that it's being cached and they should run it again to check.
> As a result, the advice message tries to keep them informed of their current
> configuration.

Let me suggest an alternative commit message.  We want to lead with a
"command" -- as in: "make Git do this" or "teach Git to do this".  Then
explain why.  Maybe something like:

     Improve the advice displayed when `git status` is slow because
     of excessive numbers of untracked files.  Update the `git status`
     man page to explain the various configuration options.

     `git status` can be slow when there are a large number of untracked
     files and directories, because Git must search the entire worktree
     to enumerate them.  Previously, Git would print an advice message
     with the elapsed search time and a suggestion to disable the search
     using the `-uno` option.  This suggestion also carried a warning
     that might scare off some users.

     Git can reduce the size and time of the untracked file search when
     the `core.untrackedCache` and `core.fsmonitor` features are enabled
     by caching results from previous `git status` invocations.

     Update the advice to explain the various combinations of additional
     configuration options and refer to (new) documentation in the man
     page that explains it in more detail than what can be printed in an
     advice message.

     Finally, add new tests to verify the new functionality.

Or something like that. :-)


[...]
> diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt
> index 54a4b29b473..3d92e5fd018 100644
> --- a/Documentation/git-status.txt
> +++ b/Documentation/git-status.txt
> @@ -457,6 +457,33 @@ during the write may conflict with other simultaneous processes, causing
>   them to fail. Scripts running `status` in the background should consider
>   using `git --no-optional-locks status` (see linkgit:git[1] for details).
>   
> +UNTRACKED FILES AND STATUS SPEED
> +--------------------------------
> +
> +If your untracked files take an unusual amount of time to enumerate, your
> +repository certainly has a lot of them, and an advice message will display
> +about it. Here are some configurations to consider in order to improve the
> +situation:
> +
> +* Setting the `core.untrackedCache` configuration as `true` will allow for
> +`git status` to keep track of the mtime of folders, in order to cache past
> +`status` results and be sure to only browse folders that changed on subsequent
> +runs, for filesystems that can support it (see linkgit:git-update-index[1]
> +for details).
> +* Used in conjonction with `core.untrackedCache`, setting the `core.fsmonitor`
> +configuration as `true` will allow for `git status` to keep track of what
> +files recently changed, in order to cache past `status` results and be sure
> +to only focus on those files on subsequent runs (see linkgit:git-update-index[1]
> +for details).
> +* If none of the above options are satisfactory, setting the
> +`status.showUntrackedFiles` configuration as `no` will cause `git status`
> +to not attempt to list untracked files anymore, in which case you have to be
> +careful not to forget to add new files yourself.
> +
> +If none of the above solutions are satisfactory, and you are bothered with
> +the advice message, you can disable it by setting the `advice.statusUoption`
> +configuration to `false`.
> +

I hate to suggest a complete rewrite as I myself struggle with
how to phrase things all toooooo often, but let me offer another
starting point and see what you think:

     `git status` can be very slow in large worktrees if/when it
     needs to search for untracked files and directories.  There are
     many configuration options available to speed this up by either
     avoiding the work or making use of cached results from previous
     Git commands.  Since we all work in different ways, there is no
     single optimum set of settings right for everyone.  Here is a
     brief summary of the relevant options to help you choose which
     is right for you.  Each of these settings is independently
     documented elsewhere in more detail, so please refer to them
     for complete details.

     * `-uno` or `status.showUntrackedFiles=false` : just don't search
         and don't report on untracked files.  This is the fastest.
         `git status` will not list the untracked files, so you need
         to be careful to remember if you create any new files and
         manually `git add` them.

     * `advice.statusUoption=false` : search, but don't complain if it
         takes too long.

     * `core.untrackedCache=true` : enable the untracked cache feature
         and only search directories that have been modified since the
         previous `git status` command.  Git remembers the set of
         untracked files within each directory and assumes that if a
         directory has not been modified, then the set of untracked
         file within has not changed.  This is much faster than
         enumerating the contents of every directory, but still not
         without cost, because Git still has to search for the set of
         modified directories.

     * `core.untrackedCache=true` and `core.fsmonitor=true` or
         `core.fsmonitor=<hook_command_pathname>` : enable both the
         untracked cache and FSMonitor features and only search
         directories that have been modified since the previous
         `git status` command.  This is faster than using just the
         untracked cache alone because Git can also avoid searching
         for modified directories.  Git only has to enumerate the
         exact set of directories that have changed recently.

     Note that after you turn on the untracked cache and/or FSMonitor
     features it may take a few `git status` commands for the various
     caches to warm up before you see improved command times.  This is
     normal.

Something like that.  Hope this helps.  (And again, sorry for the
rewrite.)


[...]
> diff --git a/t/t7065-wtstatus-slow.sh b/t/t7065-wtstatus-slow.sh
> new file mode 100755
> index 00000000000..92c053eaa64
> --- /dev/null
> +++ b/t/t7065-wtstatus-slow.sh
> @@ -0,0 +1,40 @@
> +#!/bin/sh
[...]
> +
> +test_done
> \ No newline at end of file

small nit: we should have a final LF at the end of the file.

I'm going to skip over the test cases because I'm running
short on time this afternoon.


[...]
> diff --git a/wt-status.c b/wt-status.c
[...]
>   static void show_merge_in_progress(struct wt_status *s,
>   				   const char *color)
>   {
> @@ -1814,6 +1827,7 @@ static void wt_longstatus_print(struct wt_status *s)
>   {
>   	const char *branch_color = color(WT_STATUS_ONBRANCH, s);
>   	const char *branch_status_color = color(WT_STATUS_HEADER, s);
> +	enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(s->repo);
>   
>   	if (s->branch) {
>   		const char *on_what = _("On branch ");
> @@ -1870,13 +1884,25 @@ static void wt_longstatus_print(struct wt_status *s)
>   		wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
>   		if (s->show_ignored_mode)
>   			wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
> -		if (advice_enabled(ADVICE_STATUS_U_OPTION) && 2000 < s->untracked_in_ms) {
> -			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
> -			status_printf_ln(s, GIT_COLOR_NORMAL,
> -					 _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
> -					   "may speed it up, but you have to be careful not to forget to add\n"
> -					   "new files yourself (see 'git help status')."),
> -					 s->untracked_in_ms / 1000.0);
> +		if (uf_was_slow(s->untracked_in_ms)) {
> +			if (advice_enabled(ADVICE_STATUS_U_OPTION)) {
> +				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
> +				if (s->repo->settings.core_untracked_cache == UNTRACKED_CACHE_WRITE) {
> +					status_printf_ln(s, GIT_COLOR_NORMAL,
> +							_("It took %.2f seconds to enumerate untracked files,\n"
> +							"but this is currently being cached, with fsmonitor %s."),
> +							s->untracked_in_ms / 1000.0,
> +							(fsm_mode > FSMONITOR_MODE_DISABLED) ? "ON" : "OFF");
> +				} else {
> +					status_printf_ln(s, GIT_COLOR_NORMAL,
> +							_("It took %.2f seconds to enumerate untracked files."),
> +							s->untracked_in_ms / 1000.0);
> +				}
> +				status_printf_ln(s, GIT_COLOR_NORMAL,
> +						_("See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed\n"
> +						"for configuration options that may improve that time."));
> +				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
> +			}

I'm not sure I like the various mixture of messages here.  Maybe
it would be better with a single simple message:

     _("It took %.2f seconds to enumerate untracked files.\n"
       "See 'git help status' for information on how to improve this.")

This keeps all of the information in the documentation rather
than having part of it here in the code.

Also, we should refer to the documentation via `git help` rather
than as a link to the website.


Thanks,
Jeff
Rudy Rigot Nov. 2, 2022, 8:34 p.m. UTC | #2
Thanks a lot for all that feedback. Honestly you're way more familiar
than I am with both how the underlying features work, and how to best
contribute this change, so I'm comfortable taking your advice pretty
much blindly.


> Let me suggest an alternative commit message.  We want to lead with a
> "command" -- as in: "make Git do this" or "teach Git to do this".  Then
> explain why.

Oops, sorry for missing this. Well, your commit message suggestion
is flawless, I will reuse this as is. Thanks a lot for spending
time polishing it.


> I hate to suggest a complete rewrite
> [...]
> Something like that.  Hope this helps.  (And again, sorry for the
rewrite.)

There's absolutely nothing to apologize about. This is great! I
will also reuse as is. Here too, thanks a lot for the time spent
on this!


> small nit: we should have a final LF at the end of the file.

Sounds good, will fix.


> I'm going to skip over the test cases because I'm running
> short on time this afternoon.

That's all good, I need to align my submission to all this and
resubmit anyway, so you got time! I'm pretty confident about them
too, a lot more than in the phrasing of the user-facing content
I had.


> Also, we should refer to the documentation via `git help` rather
> than as a link to the website.

Oops, I didn't realize people were getting the same content from
either. I will fix.


> I'm not sure I like the various mixture of messages here.  Maybe
> it would be better with a single simple message:

That's the one thing I'm a bit concerned about, that I would like
to discuss more if that's ok.

The current confusion we're seeing with users of our very large repo,
is that they run git status the first time and notice it being slow
(~30s), and then they see the current advice message advising that
they're supposed to do something about it. What they don't know, is
that untrackedcache and fsmonitor were already set for their
environment, by the script setting their entire environment up.

I don't think it is unusual for users to not necessarily know how
their environment was configured (either because someone/something
else did it for them, or because they forgot what they did for
this specific repo, for instance).

So with that, I worry about the phrasing "See 'git help status' for
information on how to improve this." in that use case, because
it implies that there is something they are expected to go improve,
while that was already done.

Here are some solution ideas:

* Changing the wording for all use cases to not convey that they
must do anything about it. For instance just "See 'git help status'".
(I don't love this because I could imagine users being puzzled about
why Git is telling them this, then.)
* Informing the user of their current caching situation in ways
that they can deduce whether or not they should be doing something
about it. That's what I was attempting to do here, but reading your
help content, I think I got something wrong: I didn't realize the
cache would only need to warm up with untrackedcache + fsmonitor,
and not with untrackedcache alone. So with that an improvement could
be to only display "but this is currently being cached." when both
untrackedcache + fsmonitor are on, and not display anything different
when only untrackedcache is on then when it's not.
* Not displaying this advice message when fsmonitor is on, since
the best possible optimization was already applied. Not loving it,
because some could also still want untracked files off on top of it.
Also, it doesn't resolve the frustration of noticing git status being
slow the first time.

For now if you don't mind, I'll change things to the 2nd proposal up
there, but this is not because I'm rejecting your guidance and insisting
that adding a line here is the right solution to the situation of
environments that were already optimized, and I'm not sure what
is. But I do worry that telling those users that they should optimize
things while they/someone already did will surely be confusing.

I'll work on the other fixes, and I am deeply interested in your
thoughts about this one. Thanks a lot for working through this with
me.
Taylor Blau Nov. 2, 2022, 11:59 p.m. UTC | #3
On Wed, Nov 02, 2022 at 03:45:18PM -0400, Jeff Hostetler wrote:
> Let me suggest an alternative commit message.  We want to lead with a
> "command" -- as in: "make Git do this" or "teach Git to do this".  Then
> explain why.  Maybe something like:
>
> [...]

Excellent suggestions, thank you.

> > @@ -1870,13 +1884,25 @@ static void wt_longstatus_print(struct wt_status *s)
> >   		wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
> >   		if (s->show_ignored_mode)
> >   			wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
> > -		if (advice_enabled(ADVICE_STATUS_U_OPTION) && 2000 < s->untracked_in_ms) {
> > -			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
> > -			status_printf_ln(s, GIT_COLOR_NORMAL,
> > -					 _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
> > -					   "may speed it up, but you have to be careful not to forget to add\n"
> > -					   "new files yourself (see 'git help status')."),
> > -					 s->untracked_in_ms / 1000.0);
> > +		if (uf_was_slow(s->untracked_in_ms)) {
> > +			if (advice_enabled(ADVICE_STATUS_U_OPTION)) {
> > +				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
> > +				if (s->repo->settings.core_untracked_cache == UNTRACKED_CACHE_WRITE) {
> > +					status_printf_ln(s, GIT_COLOR_NORMAL,
> > +							_("It took %.2f seconds to enumerate untracked files,\n"
> > +							"but this is currently being cached, with fsmonitor %s."),
> > +							s->untracked_in_ms / 1000.0,
> > +							(fsm_mode > FSMONITOR_MODE_DISABLED) ? "ON" : "OFF");
> > +				} else {
> > +					status_printf_ln(s, GIT_COLOR_NORMAL,
> > +							_("It took %.2f seconds to enumerate untracked files."),
> > +							s->untracked_in_ms / 1000.0);
> > +				}
> > +				status_printf_ln(s, GIT_COLOR_NORMAL,
> > +						_("See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed\n"
> > +						"for configuration options that may improve that time."));
> > +				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
> > +			}
>
> I'm not sure I like the various mixture of messages here.  Maybe
> it would be better with a single simple message:
>
>     _("It took %.2f seconds to enumerate untracked files.\n"
>       "See 'git help status' for information on how to improve this.")
>
> This keeps all of the information in the documentation rather
> than having part of it here in the code.
>
> Also, we should refer to the documentation via `git help` rather
> than as a link to the website.

I agree with your suggestion of not linking out to git-scm.com here, but
I wonder if we could get by without mentioning 'git help' here, either.
Presumably looking up an unknown configuration variable with 'man
git-config' is easy enough.

Thanks,
Taylor
Rudy Rigot Nov. 3, 2022, 2:28 p.m. UTC | #4
> looking up an unknown configuration variable with 'man
> git-config' is easy enough.

I'm not strongly opinionated, but I believe the initial idea behind
redirecting them to the doc was because Git now comes with more
configuration abilities to improve performance of git status, that may
be more or less relevant depending on use cases, so there
isn't really a single git-config key for them to look up any more. Their
ideal solution could be core.untrackedCache=true, core.fsmonitor=true,
advice.statusUoption=false, status.showUntrackedFiles=false, or even
some combinations of those can be relevant.

From there, the goal I believe we were going for with this new doc
section is to let users know what configs exist for their git status
slowness pains and why, so they can then go look those configs up for
more details, which I agree would indeed be easy from there.

Again, I'm not strongly opinionated, and I hope I accurately represented
the inital thinking on this idea.

One slightly stronger opinion I have, is that if the advice message
was just

> It took %.2f seconds to enumerate untracked files.

and nothing else, I can definitely see a strong UX downside of not
giving a hint of next steps for users. Basically, "you have a problem,
and we're not helping you resolve it". Were you thinking more of
something like this?

> It took %.2f seconds to enumerate untracked files.
> Please look up the core.untrackedCache, core.fsmonitor
> advice.statusUoption, and status.showUntrackedFiles configs
> for potential solutions.

I'd say that's probably somewhat cryptic and a bit verbose (which is
what we were trying to avoid by telling them to go see the doc), but
we wouldn't be leaving the user stranded, so I can see how that would
work out ok.

I'm very interested in what you think.

Thanks,
Ævar Arnfjörð Bjarmason Nov. 4, 2022, 8:52 a.m. UTC | #5
On Thu, Nov 03 2022, Rudy Rigot wrote:

>> looking up an unknown configuration variable with 'man
>> git-config' is easy enough.
>
> I'm not strongly opinionated, but I believe the initial idea behind
> redirecting them to the doc was because Git now comes with more
> configuration abilities to improve performance of git status, that may
> be more or less relevant depending on use cases, so there
> isn't really a single git-config key for them to look up any more. Their
> ideal solution could be core.untrackedCache=true, core.fsmonitor=true,
> advice.statusUoption=false, status.showUntrackedFiles=false, or even
> some combinations of those can be relevant.
>
> From there, the goal I believe we were going for with this new doc
> section is to let users know what configs exist for their git status
> slowness pains and why, so they can then go look those configs up for
> more details, which I agree would indeed be easy from there.
>
> Again, I'm not strongly opinionated, and I hope I accurately represented
> the inital thinking on this idea.
>
> One slightly stronger opinion I have, is that if the advice message
> was just
>
>> It took %.2f seconds to enumerate untracked files.
>
> and nothing else, I can definitely see a strong UX downside of not
> giving a hint of next steps for users. Basically, "you have a problem,
> and we're not helping you resolve it". Were you thinking more of
> something like this?
>
>> It took %.2f seconds to enumerate untracked files.
>> Please look up the core.untrackedCache, core.fsmonitor
>> advice.statusUoption, and status.showUntrackedFiles configs
>> for potential solutions.
>
> I'd say that's probably somewhat cryptic and a bit verbose (which is
> what we were trying to avoid by telling them to go see the doc), but
> we wouldn't be leaving the user stranded, so I can see how that would
> work out ok.
>
> I'm very interested in what you think.

On the topic in general: I think it's probably a good thing to show the
advice, but I just want to point out that it's not without cost.

Right now we're showing users a pretty basic command they can try, but
now we're showing them other stuff that needs more complex setup.

For some they're probably way better off, e.g. the untracked cache is
pretty much an unambiguous win (we should probably turn it on on
default, but we'd need to check on-the-fly if the FS supports it
properly).

But for e.g. fsmonitor the user may spend a lot of time fiddling with
it, only to find it doesn't help their use-case much, if it all.

Should we still point out these possibilities? Probably, but just say'n.

One thing that I find glaringly omitted, which since you're working on
this you might consider adding: Suggest to just try running the exact
same command again, maybe it was just the FS cache.

I.e. we're suggesting all this advanced stuff, but by far the biggest
difference is made on e.g. a modern *nix box (particularly Linux) by
just having all the repo's assets in the FS cache.
Rudy Rigot Nov. 4, 2022, 3:33 p.m. UTC | #6
> One thing that I find glaringly omitted, which since you're working on
> this you might consider adding: Suggest to just try running the exact
> same command again, maybe it was just the FS cache.

I have to admit that would be by far my personal preference.


We've been having a number of very great points made by several people
on this thread, but a number of them contradicting each other across
people, and yet clearly nobody's wrong, everybody makes very real
points. I'm trying to turn this into actionable changes I should make,
but I think I need guidance on that. This is my first ever contribution
to the project, so I'm lacking the organizational awareness of the
project to be able to drive this to a consensus on what we should do.

Here's a proposal that tries to make opinionated moves towards what
I understand to be the priorities that were expressed:


1- We keep the new paragraph doc, because I'd say why not, it's
well-written (thanks Jeff!) and useful. When people are looking for
ways to make git status faster, it's good that there's a reference
about it, and I'd expect it to be a common need across all kinds
of user situations.


2- When untracked cache is not on, if I understand Ævar's suggestion,
it would say something like:

> It took %.2f seconds to enumerate untracked files.
> Try to enable untracked cache to see if it helps make it faster
> for you:
>    git config core.untrackedCache true

It would satisfy that the message gives concise advice with actionable
next steps, without making assumptions about whether it will or won't
work. (Untracked cache alone did not make much of a difference in our
very large repo's case.) And it doesn't point to the help anymore, in
order not to saturate the user with too much detail.


3- When untrackedcache is on but fsmonitor is off, and git status is
still slow (that's the situation we had on our very large repo), it
could say something like:

> It took %.2f seconds to enumerate untracked files.
> Try to enable FSMonitor to see if it helps make it faster for you:
>    git config core.fsmonitor true

Same as before, concise, no assumptions.

This setup is more advanced, but we are in a case where untracked cache
is not helping, so I'm thining that should be very few repos.
If the user feels a need to better understand what's up, the feature
is mentioned by name, so they can look it up and dig in if they wish to.


4- When fsmonitor is on:

> It took %.2f seconds to enumerate untracked files.
> Your runs are being cached, try running git status again to see if
> it's faster.

Same as before, concise, no assumptions, and matches Ævar's suggestion
above that was also my preference, as it would apply perfectly to our
very large repo's use case and the grievances we've received.


Please let me know what your thoughts are about it all. A downside with
all that is the option to disable untracked files is not mentioned at
all, but if we keep the doc as it is, and it gets painful enough that
they search for other ways, I'm hopefuly the user would find it there.


I want to say it again: I'm not very opinionated about any of this,
just trying to collate feedback into an actionable plan. If I understood
feedback wrong, or my plan is not the best based on the feedback, that
is very fine, but I will need guidance to know what makes more sense.


> the untracked cache is
> pretty much an unambiguous win (we should probably turn it on on
> default, but we'd need to check on-the-fly if the FS supports it
> properly).

I could take on the work to make untracked cache on by default after
this, as another patch, if it sounds relevant to try. I feel I
lack the technical understanding of what we need to check that you're
mentioning here, so I'll have questions, but I'd be on board with
trying.
Taylor Blau Nov. 4, 2022, 9:38 p.m. UTC | #7
On Thu, Nov 03, 2022 at 09:28:56AM -0500, Rudy Rigot wrote:
> One slightly stronger opinion I have, is that if the advice message
> was just
>
> > It took %.2f seconds to enumerate untracked files.
>
> and nothing else, I can definitely see a strong UX downside of not
> giving a hint of next steps for users. Basically, "you have a problem,
> and we're not helping you resolve it". Were you thinking more of
> something like this?
>
> > It took %.2f seconds to enumerate untracked files.
> > Please look up the core.untrackedCache, core.fsmonitor
> > advice.statusUoption, and status.showUntrackedFiles configs
> > for potential solutions.
>
> I'd say that's probably somewhat cryptic and a bit verbose (which is
> what we were trying to avoid by telling them to go see the doc), but
> we wouldn't be leaving the user stranded, so I can see how that would
> work out ok.
>
> I'm very interested in what you think.

I see what you're saying. On the one hand, it feels redundant to say,
"we noticed 'git status' is running slowly for you, try running 'git
help status' to figure out why".

But on the other hand, enumerating all possible configuration values
that you may or may not want to set given your particular circumstance
isn't practical either.

Thinking on it more, I think what you wrote originally is reasonable.

Thanks,
Taylor
diff mbox series

Patch

diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt
index 54a4b29b473..3d92e5fd018 100644
--- a/Documentation/git-status.txt
+++ b/Documentation/git-status.txt
@@ -457,6 +457,33 @@  during the write may conflict with other simultaneous processes, causing
 them to fail. Scripts running `status` in the background should consider
 using `git --no-optional-locks status` (see linkgit:git[1] for details).
 
+UNTRACKED FILES AND STATUS SPEED
+--------------------------------
+
+If your untracked files take an unusual amount of time to enumerate, your
+repository certainly has a lot of them, and an advice message will display
+about it. Here are some configurations to consider in order to improve the
+situation:
+
+* Setting the `core.untrackedCache` configuration as `true` will allow for
+`git status` to keep track of the mtime of folders, in order to cache past
+`status` results and be sure to only browse folders that changed on subsequent
+runs, for filesystems that can support it (see linkgit:git-update-index[1]
+for details).
+* Used in conjonction with `core.untrackedCache`, setting the `core.fsmonitor`
+configuration as `true` will allow for `git status` to keep track of what
+files recently changed, in order to cache past `status` results and be sure
+to only focus on those files on subsequent runs (see linkgit:git-update-index[1]
+for details).
+* If none of the above options are satisfactory, setting the
+`status.showUntrackedFiles` configuration as `no` will cause `git status`
+to not attempt to list untracked files anymore, in which case you have to be
+careful not to forget to add new files yourself.
+
+If none of the above solutions are satisfactory, and you are bothered with
+the advice message, you can disable it by setting the `advice.statusUoption`
+configuration to `false`.
+
 SEE ALSO
 --------
 linkgit:gitignore[5]
diff --git a/t/t7065-wtstatus-slow.sh b/t/t7065-wtstatus-slow.sh
new file mode 100755
index 00000000000..92c053eaa64
--- /dev/null
+++ b/t/t7065-wtstatus-slow.sh
@@ -0,0 +1,40 @@ 
+#!/bin/sh
+
+test_description='test status when slow untracked files'
+
+. ./test-lib.sh
+
+DATA="$TEST_DIRECTORY/t7065"
+
+GIT_TEST_UF_DELAY_WARNING=1
+export GIT_TEST_UF_DELAY_WARNING
+
+test_expect_success setup '
+	git checkout -b test
+'
+
+test_expect_success 'when core.untrackedCache and fsmonitor are unset' '
+	test_must_fail git config --get core.untrackedCache &&
+	test_must_fail git config --get core.fsmonitor &&
+    git status | sed "s/[0-9]\.[0-9][0-9]/X/g" >../actual &&
+    test_cmp "$DATA/no_untrackedcache_no_fsmonitor" ../actual &&
+    rm -fr ../actual
+'
+
+test_expect_success 'when core.untrackedCache true, but not fsmonitor' '
+    git config core.untrackedCache true &&
+	test_must_fail git config --get core.fsmonitor &&
+    git status | sed "s/[0-9]\.[0-9][0-9]/X/g" >../actual &&
+    test_cmp "$DATA/with_untrackedcache_no_fsmonitor" ../actual &&
+    rm -fr ../actual
+'
+
+test_expect_success 'when core.untrackedCache true, and fsmonitor' '
+    git config core.untrackedCache true &&
+	git config core.fsmonitor true &&
+    git status | sed "s/[0-9]\.[0-9][0-9]/X/g" >../actual &&
+    test_cmp "$DATA/with_untrackedcache_with_fsmonitor" ../actual &&
+    rm -fr ../actual
+'
+
+test_done
\ No newline at end of file
diff --git a/t/t7065/no_untrackedcache_no_fsmonitor b/t/t7065/no_untrackedcache_no_fsmonitor
new file mode 100644
index 00000000000..e346deaa1db
--- /dev/null
+++ b/t/t7065/no_untrackedcache_no_fsmonitor
@@ -0,0 +1,10 @@ 
+On branch test
+
+No commits yet
+
+
+It took X seconds to enumerate untracked files.
+See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed
+for configuration options that may improve that time.
+
+nothing to commit (create/copy files and use "git add" to track)
diff --git a/t/t7065/with_untrackedcache_no_fsmonitor b/t/t7065/with_untrackedcache_no_fsmonitor
new file mode 100644
index 00000000000..a649d367493
--- /dev/null
+++ b/t/t7065/with_untrackedcache_no_fsmonitor
@@ -0,0 +1,11 @@ 
+On branch test
+
+No commits yet
+
+
+It took X seconds to enumerate untracked files,
+but this is currently being cached, with fsmonitor OFF.
+See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed
+for configuration options that may improve that time.
+
+nothing to commit (create/copy files and use "git add" to track)
diff --git a/t/t7065/with_untrackedcache_with_fsmonitor b/t/t7065/with_untrackedcache_with_fsmonitor
new file mode 100644
index 00000000000..d5e95d984f8
--- /dev/null
+++ b/t/t7065/with_untrackedcache_with_fsmonitor
@@ -0,0 +1,11 @@ 
+On branch test
+
+No commits yet
+
+
+It took X seconds to enumerate untracked files,
+but this is currently being cached, with fsmonitor ON.
+See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed
+for configuration options that may improve that time.
+
+nothing to commit (create/copy files and use "git add" to track)
diff --git a/wt-status.c b/wt-status.c
index 5813174896c..be903c6e294 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -18,8 +18,10 @@ 
 #include "worktree.h"
 #include "lockfile.h"
 #include "sequencer.h"
+#include "fsmonitor-settings.h"
 
 #define AB_DELAY_WARNING_IN_MS (2 * 1000)
+#define UF_DELAY_WARNING_IN_MS (2 * 1000)
 
 static const char cut_line[] =
 "------------------------ >8 ------------------------\n";
@@ -1205,6 +1207,17 @@  static void wt_longstatus_print_tracking(struct wt_status *s)
 	strbuf_release(&sb);
 }
 
+static inline int uf_was_slow(uint32_t untracked_in_ms)
+{
+	const char *x;
+	x = getenv("GIT_TEST_UF_DELAY_WARNING");
+	if (x) {
+		untracked_in_ms += UF_DELAY_WARNING_IN_MS + 1;
+	}
+
+	return UF_DELAY_WARNING_IN_MS < untracked_in_ms;
+}
+
 static void show_merge_in_progress(struct wt_status *s,
 				   const char *color)
 {
@@ -1814,6 +1827,7 @@  static void wt_longstatus_print(struct wt_status *s)
 {
 	const char *branch_color = color(WT_STATUS_ONBRANCH, s);
 	const char *branch_status_color = color(WT_STATUS_HEADER, s);
+	enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(s->repo);
 
 	if (s->branch) {
 		const char *on_what = _("On branch ");
@@ -1870,13 +1884,25 @@  static void wt_longstatus_print(struct wt_status *s)
 		wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
 		if (s->show_ignored_mode)
 			wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
-		if (advice_enabled(ADVICE_STATUS_U_OPTION) && 2000 < s->untracked_in_ms) {
-			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
-			status_printf_ln(s, GIT_COLOR_NORMAL,
-					 _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
-					   "may speed it up, but you have to be careful not to forget to add\n"
-					   "new files yourself (see 'git help status')."),
-					 s->untracked_in_ms / 1000.0);
+		if (uf_was_slow(s->untracked_in_ms)) {
+			if (advice_enabled(ADVICE_STATUS_U_OPTION)) {
+				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
+				if (s->repo->settings.core_untracked_cache == UNTRACKED_CACHE_WRITE) {
+					status_printf_ln(s, GIT_COLOR_NORMAL,
+							_("It took %.2f seconds to enumerate untracked files,\n"
+							"but this is currently being cached, with fsmonitor %s."),
+							s->untracked_in_ms / 1000.0,
+							(fsm_mode > FSMONITOR_MODE_DISABLED) ? "ON" : "OFF");
+				} else {
+					status_printf_ln(s, GIT_COLOR_NORMAL,
+							_("It took %.2f seconds to enumerate untracked files."),
+							s->untracked_in_ms / 1000.0);
+				}
+				status_printf_ln(s, GIT_COLOR_NORMAL,
+						_("See https://git-scm.com/docs/git-status#_untracked_files_and_status_speed\n"
+						"for configuration options that may improve that time."));
+				status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
+			}
 		}
 	} else if (s->committable)
 		status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),