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authorThomas Rast <trast@student.ethz.ch>2009-10-19 17:48:10 +0200
committerJunio C Hamano <gitster@pobox.com>2009-10-19 22:28:26 -0700
commit8f8f5476cd6542387d435c242752404cf144005f (patch)
tree735245fb1ac506a639e35298edd8e2648343415d
parent72b103fec7af967d295410c2fd3899bc6e8386e2 (diff)
downloadgit-8f8f5476cd6542387d435c242752404cf144005f.tar.gz
Introduce new pretty formats %g[sdD] for reflog information
Add three new --pretty=format escapes: %gD long reflog descriptor (e.g. refs/stash@{0}) %gd short reflog descriptor (e.g. stash@{0}) %gs reflog message This is achieved by passing down the reflog info, if any, inside the pretty_print_context struct. We use the newly refactored get_reflog_selector(), and give it some extra functionality to extract a shortened ref. The shortening is cached inside the commit_reflogs struct; the only allocation of it happens in read_complete_reflog(), where it is initialised to 0. Also add another helper get_reflog_message() for the message extraction. Note that the --format="%h %gD: %gs" tests may not work in real repositories, as the --pretty formatter doesn't know to leave away the ": " on the last commit in an incomplete (because git-gc removed the old part) reflog. This equivalence is nevertheless the main goal of this patch. Thanks to Jeff King for reviews, the %gd testcase and documentation. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/pretty-formats.txt9
-rw-r--r--commit.h1
-rw-r--r--log-tree.c1
-rw-r--r--pretty.c17
-rw-r--r--reflog-walk.c35
-rw-r--r--reflog-walk.h8
-rwxr-xr-xt/t6006-rev-list-format.sh18
7 files changed, 86 insertions, 3 deletions
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 2a845b1e57..38b9904791 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -123,6 +123,9 @@ The placeholders are:
- '%s': subject
- '%f': sanitized subject line, suitable for a filename
- '%b': body
+- '%gD': reflog selector, e.g., `refs/stash@\{1\}`
+- '%gd': shortened reflog selector, e.g., `stash@\{1\}`
+- '%gs': reflog subject
- '%Cred': switch color to red
- '%Cgreen': switch color to green
- '%Cblue': switch color to blue
@@ -132,6 +135,12 @@ The placeholders are:
- '%n': newline
- '%x00': print a byte from a hex code
+NOTE: Some placeholders may depend on other options given to the
+revision traversal engine. For example, the `%g*` reflog options will
+insert an empty string unless we are traversing reflog entries (e.g., by
+`git log -g`). The `%d` placeholder will use the "short" decoration
+format if `--decorate` was not already provided on the command line.
+
* 'tformat:'
+
The 'tformat:' format works exactly like 'format:', except that it
diff --git a/commit.h b/commit.h
index 011766dee4..15cb64920c 100644
--- a/commit.h
+++ b/commit.h
@@ -70,6 +70,7 @@ struct pretty_print_context
const char *after_subject;
enum date_mode date_mode;
int need_8bit_cte;
+ struct reflog_walk_info *reflog_info;
};
extern int non_ascii(int);
diff --git a/log-tree.c b/log-tree.c
index 1675035d84..0fdf159f80 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -411,6 +411,7 @@ void show_log(struct rev_info *opt)
ctx.date_mode = opt->date_mode;
ctx.abbrev = opt->diffopt.abbrev;
ctx.after_subject = extra_headers;
+ ctx.reflog_info = opt->reflog_info;
pretty_print_commit(opt->commit_format, commit, &msgbuf, &ctx);
if (opt->add_signoff)
diff --git a/pretty.c b/pretty.c
index d6d57ebd23..fc65fca58a 100644
--- a/pretty.c
+++ b/pretty.c
@@ -7,6 +7,7 @@
#include "mailmap.h"
#include "log-tree.h"
#include "color.h"
+#include "reflog-walk.h"
static char *user_format;
@@ -701,6 +702,22 @@ static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
case 'd':
format_decoration(sb, commit);
return 1;
+ case 'g': /* reflog info */
+ switch(placeholder[1]) {
+ case 'd': /* reflog selector */
+ case 'D':
+ if (c->pretty_ctx->reflog_info)
+ get_reflog_selector(sb,
+ c->pretty_ctx->reflog_info,
+ c->pretty_ctx->date_mode,
+ (placeholder[1] == 'd'));
+ return 2;
+ case 's': /* reflog message */
+ if (c->pretty_ctx->reflog_info)
+ get_reflog_message(sb, c->pretty_ctx->reflog_info);
+ return 2;
+ }
+ return 0; /* unknown %g placeholder */
}
/* For the rest we have to parse the commit header. */
diff --git a/reflog-walk.c b/reflog-walk.c
index 596bafebdd..caba4f743f 100644
--- a/reflog-walk.c
+++ b/reflog-walk.c
@@ -8,6 +8,7 @@
struct complete_reflogs {
char *ref;
+ const char *short_ref;
struct reflog_info {
unsigned char osha1[20], nsha1[20];
char *email;
@@ -243,15 +244,26 @@ void fake_reflog_parent(struct reflog_walk_info *info, struct commit *commit)
void get_reflog_selector(struct strbuf *sb,
struct reflog_walk_info *reflog_info,
- enum date_mode dmode)
+ enum date_mode dmode,
+ int shorten)
{
struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog;
struct reflog_info *info;
+ const char *printed_ref;
if (!commit_reflog)
return;
- strbuf_addf(sb, "%s@{", commit_reflog->reflogs->ref);
+ if (shorten) {
+ if (!commit_reflog->reflogs->short_ref)
+ commit_reflog->reflogs->short_ref
+ = shorten_unambiguous_ref(commit_reflog->reflogs->ref, 0);
+ printed_ref = commit_reflog->reflogs->short_ref;
+ } else {
+ printed_ref = commit_reflog->reflogs->ref;
+ }
+
+ strbuf_addf(sb, "%s@{", printed_ref);
if (commit_reflog->flag || dmode) {
info = &commit_reflog->reflogs->items[commit_reflog->recno+1];
strbuf_addstr(sb, show_date(info->timestamp, info->tz, dmode));
@@ -263,6 +275,23 @@ void get_reflog_selector(struct strbuf *sb,
strbuf_addch(sb, '}');
}
+void get_reflog_message(struct strbuf *sb,
+ struct reflog_walk_info *reflog_info)
+{
+ struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog;
+ struct reflog_info *info;
+ size_t len;
+
+ if (!commit_reflog)
+ return;
+
+ info = &commit_reflog->reflogs->items[commit_reflog->recno+1];
+ len = strlen(info->message);
+ if (len > 0)
+ len--; /* strip away trailing newline */
+ strbuf_add(sb, info->message, len);
+}
+
void show_reflog_message(struct reflog_walk_info *reflog_info, int oneline,
enum date_mode dmode)
{
@@ -272,7 +301,7 @@ void show_reflog_message(struct reflog_walk_info *reflog_info, int oneline,
struct strbuf selector = STRBUF_INIT;
info = &commit_reflog->reflogs->items[commit_reflog->recno+1];
- get_reflog_selector(&selector, reflog_info, dmode);
+ get_reflog_selector(&selector, reflog_info, dmode, 0);
if (oneline) {
printf("%s: %s", selector.buf, info->message);
}
diff --git a/reflog-walk.h b/reflog-walk.h
index 74c90964bd..7bd2cd4c4e 100644
--- a/reflog-walk.h
+++ b/reflog-walk.h
@@ -3,6 +3,8 @@
#include "cache.h"
+struct reflog_walk_info;
+
extern void init_reflog_walk(struct reflog_walk_info** info);
extern int add_reflog_for_walk(struct reflog_walk_info *info,
struct commit *commit, const char *name);
@@ -10,5 +12,11 @@ extern void fake_reflog_parent(struct reflog_walk_info *info,
struct commit *commit);
extern void show_reflog_message(struct reflog_walk_info *info, int,
enum date_mode);
+extern void get_reflog_message(struct strbuf *sb,
+ struct reflog_walk_info *reflog_info);
+extern void get_reflog_selector(struct strbuf *sb,
+ struct reflog_walk_info *reflog_info,
+ enum date_mode dmode,
+ int shorten);
#endif
diff --git a/t/t6006-rev-list-format.sh b/t/t6006-rev-list-format.sh
index 59d1f6283b..7f61ab0e52 100755
--- a/t/t6006-rev-list-format.sh
+++ b/t/t6006-rev-list-format.sh
@@ -162,4 +162,22 @@ test_expect_success 'empty email' '
}
'
+test_expect_success '"%h %gD: %gs" is same as git-reflog' '
+ git reflog >expect &&
+ git log -g --format="%h %gD: %gs" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '"%h %gD: %gs" is same as git-reflog (with date)' '
+ git reflog --date=raw >expect &&
+ git log -g --format="%h %gD: %gs" --date=raw >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '%gd shortens ref name' '
+ echo "master@{0}" >expect.gd-short &&
+ git log -g -1 --format=%gd refs/heads/master >actual.gd-short &&
+ test_cmp expect.gd-short actual.gd-short
+'
+
test_done