From: Thomas Gummerer <t.gummerer@gmail.com>
To: Duy Nguyen <pclouds@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>,
Thomas Rast <trast@inf.ethz.ch>,
Michael Haggerty <mhagger@alum.mit.edu>,
Junio C Hamano <gitster@pobox.com>,
Robin Rosenberg <robin.rosenberg@dewire.com>,
Eric Sunshine <sunshine@sunshineco.com>
Subject: Re: [PATCH v2 08/19] grep.c: Use index api
Date: Mon, 15 Jul 2013 11:51:39 +0200 [thread overview]
Message-ID: <87bo64cfro.fsf@gmail.com> (raw)
In-Reply-To: <CACsJy8CMqJ5TF1V7CMTQjnAUp=zXPYxotq5uLqvaF0Sikzv+uw@mail.gmail.com>
Duy Nguyen <pclouds@gmail.com> writes:
> On Sat, Jul 13, 2013 at 12:26 AM, Thomas Gummerer <t.gummerer@gmail.com> wrote:
>> +static int grep_cache(struct cache_entry *ce, void *cb_data)
>> {
>> - int hit = 0;
>> - int nr;
>> - read_cache();
>> + struct grep_opts *opts = cb_data;
>>
>> - for (nr = 0; nr < active_nr; nr++) {
>> - struct cache_entry *ce = active_cache[nr];
>> - if (!S_ISREG(ce->ce_mode))
>> - continue;
>> - if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL))
>> - continue;
>> - /*
>> - * If CE_VALID is on, we assume worktree file and its cache entry
>> - * are identical, even if worktree file has been modified, so use
>> - * cache version instead
>> - */
>> - if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) {
>> - if (ce_stage(ce))
>> - continue;
>> - hit |= grep_sha1(opt, ce->sha1, ce->name, 0, ce->name);
>> - }
>> - else
>> - hit |= grep_file(opt, ce->name);
>> - if (ce_stage(ce)) {
>> - do {
>> - nr++;
>> - } while (nr < active_nr &&
>> - !strcmp(ce->name, active_cache[nr]->name));
>> - nr--; /* compensate for loop control */
>> - }
>> - if (hit && opt->status_only)
>> - break;
>> - }
>> - return hit;
>> + if (!S_ISREG(ce->ce_mode))
>> + return 0;
>> + if (!match_pathspec_depth(opts->pathspec, ce->name, ce_namelen(ce), 0, NULL))
>> + return 0;
>
> You do a match_pathspec_depth here..
>
>> @@ -895,10 +887,21 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
>> } else if (0 <= opt_exclude) {
>> die(_("--[no-]exclude-standard cannot be used for tracked contents."));
>> } else if (!list.nr) {
>> + struct grep_opts opts;
>> + struct filter_opts *filter_opts = xmalloc(sizeof(*filter_opts));
>> +
>> if (!cached)
>> setup_work_tree();
>>
>> - hit = grep_cache(&opt, &pathspec, cached);
>> + memset(filter_opts, 0, sizeof(*filter_opts));
>> + filter_opts->pathspec = &pathspec;
>> + opts.opt = &opt;
>> + opts.pathspec = &pathspec;
>> + opts.cached = cached;
>> + opts.hit = 0;
>> + read_cache_filtered(filter_opts);
>> + for_each_cache_entry(grep_cache, &opts);
>
> And here again inside for_each_cache_entry. In the worst case that
> could turn into 2 expensive fnmatch instead of one. Is this conversion
> worth it? Note that match_pathspec is just a deprecated version of
> match_pathspec_depth. They basically do the same thing.
Right, the match_pathspec_depth should in builtin/grep.c should be
removed, it's unnecessary when using for_each_index_entry. Thanks for
spotting it. Other than that I still think the change makes sense.
next prev parent reply other threads:[~2013-07-15 9:51 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-12 17:26 [PATCH v2 00/19] Index-v5 Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 01/19] t2104: Don't fail for index versions other than [23] Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 02/19] read-cache: split index file version specific functionality Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 03/19] read-cache: move index v2 specific functions to their own file Thomas Gummerer
2013-07-14 3:10 ` Duy Nguyen
2013-07-19 14:53 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 04/19] read-cache: Re-read index if index file changed Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 05/19] Add documentation for the index api Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 06/19] read-cache: add index reading api Thomas Gummerer
2013-07-14 3:21 ` Duy Nguyen
2013-07-12 17:26 ` [PATCH v2 07/19] make sure partially read index is not changed Thomas Gummerer
2013-07-14 3:29 ` Duy Nguyen
2013-07-17 12:56 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 08/19] grep.c: Use index api Thomas Gummerer
2013-07-14 3:32 ` Duy Nguyen
2013-07-15 9:51 ` Thomas Gummerer [this message]
2013-07-12 17:26 ` [PATCH v2 09/19] ls-files.c: use " Thomas Gummerer
2013-07-14 3:39 ` Duy Nguyen
2013-07-17 8:07 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 10/19] documentation: add documentation of the index-v5 file format Thomas Gummerer
2013-07-14 3:59 ` Duy Nguyen
2013-07-17 8:09 ` Thomas Gummerer
2013-08-04 11:26 ` Duy Nguyen
2013-08-04 17:58 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 11/19] read-cache: make in-memory format aware of stat_crc Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 12/19] read-cache: read index-v5 Thomas Gummerer
2013-07-14 4:42 ` Duy Nguyen
2013-08-07 8:13 ` Thomas Gummerer
2013-07-15 10:12 ` Duy Nguyen
2013-07-17 8:11 ` Thomas Gummerer
2013-08-08 2:00 ` Duy Nguyen
2013-08-08 13:28 ` Thomas Gummerer
2013-08-09 13:10 ` Thomas Gummerer
2013-08-07 8:23 ` Thomas Gummerer
2013-08-08 2:09 ` Duy Nguyen
2013-07-12 17:26 ` [PATCH v2 13/19] read-cache: read resolve-undo data Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 14/19] read-cache: read cache-tree in index-v5 Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 15/19] read-cache: write index-v5 Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 16/19] read-cache: write index-v5 cache-tree data Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 17/19] read-cache: write resolve-undo data for index-v5 Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 18/19] update-index.c: rewrite index when index-version is given Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 19/19] p0003-index.sh: add perf test for the index formats Thomas Gummerer
2013-07-14 2:59 ` [PATCH v2 00/19] Index-v5 Duy Nguyen
2013-07-15 9:30 ` Thomas Gummerer
2013-07-15 9:38 ` Duy Nguyen
2013-07-17 8:12 ` Thomas Gummerer
2013-07-17 23:58 ` Junio C Hamano
2013-07-19 17:37 ` Thomas Gummerer
2013-07-19 18:25 ` Junio C Hamano
2013-07-16 21:03 ` Ramsay Jones
2013-07-17 8:04 ` Thomas Gummerer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87bo64cfro.fsf@gmail.com \
--to=t.gummerer@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=mhagger@alum.mit.edu \
--cc=pclouds@gmail.com \
--cc=robin.rosenberg@dewire.com \
--cc=sunshine@sunshineco.com \
--cc=trast@inf.ethz.ch \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).