From: Emily Shaffer <emilyshaffer@google.com>
To: git@vger.kernel.org
Cc: Emily Shaffer <emilyshaffer@google.com>
Subject: [RFC PATCH v3 06/13] walken: perform our basic revision walk
Date: Mon, 1 Jul 2019 13:20:07 -0700 [thread overview]
Message-ID: <20190701202014.34480-7-emilyshaffer@google.com> (raw)
In-Reply-To: <20190701202014.34480-1-emilyshaffer@google.com>
Add the final steps needed and implement the walk loop itself. We add a
method walken_commit_walk() which performs the final setup to revision.c
and then iterates over commits from get_revision().
This basic walk only prints the subject line of each commit in the
history. It is nearly equivalent to `git log --oneline`.
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Change-Id: If6dc5f3c9d14df077b99e42806cf790c96191582
---
builtin/walken.c | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/builtin/walken.c b/builtin/walken.c
index 333d9ecc5e..f116bb6fca 100644
--- a/builtin/walken.c
+++ b/builtin/walken.c
@@ -6,8 +6,11 @@
#include "builtin.h"
#include "revision.h"
+#include "commit.h"
#include "config.h"
#include "parse-options.h"
+#include "pretty.h"
+#include "line-log.h"
/*
@@ -82,6 +85,40 @@ static int git_walken_config(const char *var, const char *value, void *cb)
return git_default_config(var, value, cb);
}
+/*
+ * walken_commit_walk() is invoked by cmd_walken() after initialization. It
+ * performs the actual commit walk.
+ */
+static void walken_commit_walk(struct rev_info *rev)
+{
+ struct commit *commit;
+ struct strbuf prettybuf = STRBUF_INIT;
+
+ /*
+ * prepare_revision_walk() gets the final steps ready for a revision
+ * walk. We check the return value for errors.
+ */
+ if (prepare_revision_walk(rev)) {
+ die(_("revision walk setup failed"));
+ }
+
+ /*
+ * Now we can start the real commit walk. get_revision() grabs the next
+ * revision based on the contents of rev.
+ */
+ while ((commit = get_revision(rev))) {
+ strbuf_reset(&prettybuf);
+ pp_commit_easy(CMIT_FMT_ONELINE, commit, &prettybuf);
+ /*
+ * We expect this part of the output to be machine-parseable -
+ * one commit message per line - so we send it to stdout.
+ */
+ puts(prettybuf.buf);
+ }
+
+ strbuf_release(&prettybuf);
+}
+
int cmd_walken(int argc, const char **argv, const char *prefix)
{
/*
@@ -116,12 +153,17 @@ int cmd_walken(int argc, const char **argv, const char *prefix)
*/
repo_init_revisions(the_repository, &rev, prefix);
+ /* We can set our traversal flags here. */
+ rev.always_show_header = 1;
+
/*
* Before we do the walk, we need to set a starting point by giving it
* something to go in `pending` - that happens in here
*/
final_rev_info_setup(argc, argv, prefix, &rev);
+ walken_commit_walk(&rev);
+
/*
* This line is "human-readable" and we are writing a plumbing command,
* so we localize it and use the trace library to print only when
--
2.22.0.410.gd8fdbe21b5-goog
next prev parent reply other threads:[~2019-07-01 20:20 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-07 1:07 [PATCH] documentation: add tutorial for revision walking Emily Shaffer
2019-06-07 1:07 ` [RFC PATCH 00/13] example implementation of revwalk tutorial Emily Shaffer
2019-06-07 1:07 ` [RFC PATCH 01/13] walken: add infrastructure for revwalk demo Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 02/13] walken: add usage to enable -h Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 03/13] walken: add placeholder to initialize defaults Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 04/13] walken: add handler to git_config Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 05/13] walken: configure rev_info and prepare for walk Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 06/13] walken: perform our basic revision walk Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 07/13] walken: filter for authors from gmail address Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 08/13] walken: demonstrate various topographical sorts Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 09/13] walken: demonstrate reversing a revision walk list Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 10/13] walken: add unfiltered object walk from HEAD Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 11/13] walken: add filtered object walk Emily Shaffer
2019-06-07 19:15 ` Jeff Hostetler
2019-06-17 20:30 ` Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 12/13] walken: count omitted objects Emily Shaffer
2019-06-07 1:08 ` [RFC PATCH 13/13] walken: reverse the object walk order Emily Shaffer
2019-06-07 6:21 ` [PATCH] documentation: add tutorial for revision walking Eric Sunshine
2019-06-10 21:26 ` Junio C Hamano
2019-06-10 21:38 ` Eric Sunshine
2019-06-17 23:19 ` Emily Shaffer
2019-06-19 8:13 ` Eric Sunshine
2019-06-19 23:35 ` Emily Shaffer
2019-06-23 18:54 ` Eric Sunshine
2019-06-10 20:25 ` Junio C Hamano
2019-06-17 23:50 ` Emily Shaffer
2019-06-19 15:17 ` Junio C Hamano
2019-06-20 21:06 ` Emily Shaffer
2019-07-13 0:39 ` Josh Steadmon
2019-07-16 0:06 ` Emily Shaffer
2019-07-16 17:24 ` Junio C Hamano
2019-06-10 20:49 ` Junio C Hamano
2019-06-17 23:33 ` Emily Shaffer
2019-06-26 23:49 ` [PATCH v2] " Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 00/13] example implementation of revwalk tutorial Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 01/13] walken: add infrastructure for revwalk demo Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 02/13] walken: add usage to enable -h Emily Shaffer
2019-06-27 4:47 ` Eric Sunshine
2019-06-27 18:40 ` Emily Shaffer
2019-06-27 4:50 ` Eric Sunshine
2019-06-26 23:50 ` [RFC PATCH v2 03/13] walken: add placeholder to initialize defaults Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 04/13] walken: add handler to git_config Emily Shaffer
2019-06-27 4:54 ` Eric Sunshine
2019-06-27 18:47 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 05/13] walken: configure rev_info and prepare for walk Emily Shaffer
2019-06-27 5:06 ` Eric Sunshine
2019-06-27 18:56 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 06/13] walken: perform our basic revision walk Emily Shaffer
2019-06-27 5:16 ` Eric Sunshine
2019-06-27 20:54 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 07/13] walken: filter for authors from gmail address Emily Shaffer
2019-06-27 5:20 ` Eric Sunshine
2019-06-27 20:58 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 08/13] walken: demonstrate various topographical sorts Emily Shaffer
2019-06-27 5:22 ` Eric Sunshine
2019-06-27 22:12 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 09/13] walken: demonstrate reversing a revision walk list Emily Shaffer
2019-06-27 5:26 ` Eric Sunshine
2019-06-27 22:20 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 10/13] walken: add unfiltered object walk from HEAD Emily Shaffer
2019-06-27 5:37 ` Eric Sunshine
2019-06-27 22:31 ` Emily Shaffer
2019-06-28 0:48 ` Eric Sunshine
2019-07-01 19:19 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 11/13] walken: add filtered object walk Emily Shaffer
2019-06-27 5:42 ` Eric Sunshine
2019-06-27 22:33 ` Emily Shaffer
2019-06-26 23:50 ` [RFC PATCH v2 12/13] walken: count omitted objects Emily Shaffer
2019-06-27 5:44 ` Eric Sunshine
2019-06-26 23:50 ` [RFC PATCH v2 13/13] walken: reverse the object walk order Emily Shaffer
2019-06-27 22:56 ` [RFC PATCH v2 00/13] example implementation of revwalk tutorial Emily Shaffer
2019-07-01 20:19 ` [PATCH v3] documentation: add tutorial for revision walking Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 00/13] example implementation of revwalk tutorial Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 01/13] walken: add infrastructure for revwalk demo Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 02/13] walken: add usage to enable -h Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 03/13] walken: add placeholder to initialize defaults Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 04/13] walken: add handler to git_config Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 05/13] walken: configure rev_info and prepare for walk Emily Shaffer
2019-07-01 20:20 ` Emily Shaffer [this message]
2019-07-01 20:20 ` [RFC PATCH v3 07/13] walken: filter for authors from gmail address Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 08/13] walken: demonstrate various topographical sorts Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 09/13] walken: demonstrate reversing a revision walk list Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 10/13] walken: add unfiltered object walk from HEAD Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 11/13] walken: add filtered object walk Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 12/13] walken: count omitted objects Emily Shaffer
2019-07-01 20:20 ` [RFC PATCH v3 13/13] walken: reverse the object walk order Emily Shaffer
2019-07-25 9:25 ` [RFC PATCH v3 00/13] example implementation of revwalk tutorial Johannes Schindelin
2019-08-06 23:13 ` Emily Shaffer
2019-08-08 19:19 ` Johannes Schindelin
2019-07-24 23:11 ` [PATCH v3] documentation: add tutorial for revision walking Josh Steadmon
2019-07-24 23:32 ` Jonathan Tan
2019-08-06 23:10 ` Emily Shaffer
2019-08-06 23:19 ` [PATCH v4] " Emily Shaffer
2019-08-07 19:19 ` Junio C Hamano
2019-08-14 18:33 ` Emily Shaffer
2019-08-14 19:18 ` Junio C Hamano
2019-10-10 15:19 ` [PATCH v5] documentation: add tutorial for object walking Emily Shaffer
2019-10-11 5:50 ` Junio C Hamano
2019-10-11 23:26 ` Emily Shaffer
2019-10-11 17:50 ` SZEDER Gábor
2019-10-11 23:33 ` Emily Shaffer
2019-10-11 23:55 ` [PATCH v6] " Emily Shaffer
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