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Add the 'diff.ignoreSubmodules' config setting

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When you have a lot of submodules checked out, the time penalty to check
for dirty submodules can easily imply a multiplication of the total time
by the factor 20. This makes the difference between almost instantaneous
(< 2 seconds) and unbearably slow (> 50 seconds) here, since the disk
caches are constantly overloaded.

To this end, the submodule.*.ignore config option was introduced, but it
is per-submodule.

This commit introduces a global config setting to set a default
(porcelain) value for the --ignore-submodules option, keeping the
default at 'none'. It can be overridden by the submodule.*.ignore
setting and by the --ignore-submodules option.

Incidentally, this commit fixes an issue with the overriding logic:
multiple --ignore-submodules options would not clear the previously
set flags.

While at it, fix a typo in the documentation for submodule.*.ignore.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin
2010-08-05 10:49:55 +02:00
committed by Junio C Hamano
parent 302ad7a993
commit be4f2b408e
3 changed files with 15 additions and 2 deletions
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4
submodule.c
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@ -123,6 +123,10 @@ int parse_submodule_config_option(const char *var, const char *value)
void handle_ignore_submodules_arg(struct diff_options *diffopt,
const char *arg)
{
DIFF_OPT_CLR(diffopt, IGNORE_SUBMODULES);
DIFF_OPT_CLR(diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
DIFF_OPT_CLR(diffopt, IGNORE_DIRTY_SUBMODULES);
if (!strcmp(arg, "all"))
DIFF_OPT_SET(diffopt, IGNORE_SUBMODULES);
else if (!strcmp(arg, "untracked"))