From: Issac Trotts <issac.trotts@xxxxxxxxx>
Make it possible to write for example
git log --format="%H,%S"
where the %S at the end is a new placeholder that prints out the ref
(tag/branch) for each commit.
Using %d might seem like an alternative but it only shows the ref for the last
commit in the branch.
Signed-off-by: Issac Trotts <issactrotts@xxxxxxxxxx>
---
This change is based on a question from Stack Overflow:
https://stackoverflow.com/questions/12712775/git-get-source-information-in-format
---
Documentation/pretty-formats.txt | 2 ++
builtin/log.c | 2 +-
log-tree.c | 1 +
pretty.c | 12 ++++++++
pretty.h | 1 +
t/t4205-log-pretty-formats.sh | 50 ++++++++++++++++++++++++++++++++
t/t6006-rev-list-format.sh | 4 +++
7 files changed, 71 insertions(+), 1 deletion(-)
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 417b638cd..de6953108 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -134,6 +134,8 @@ The placeholders are:
- '%cI': committer date, strict ISO 8601 format
- '%d': ref names, like the --decorate option of linkgit:git-log[1]
- '%D': ref names without the " (", ")" wrapping.
+- '%S': ref name given on the command line by which the commit was reached
+ (like `git log --source`), only works with `git log`
- '%e': encoding
- '%s': subject
- '%f': sanitized subject line, suitable for a filename
diff --git a/builtin/log.c b/builtin/log.c
index e8e51068b..9deff32b8 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -203,7 +203,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
rev->diffopt.filter || rev->diffopt.flags.follow_renames)
rev->always_show_header = 0;
- if (source) {
+ if (source || w.source) {
init_revision_sources(&revision_sources);
rev->sources = &revision_sources;
}
diff --git a/log-tree.c b/log-tree.c
index 10680c139..3cb14256e 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -700,6 +700,7 @@ void show_log(struct rev_info *opt)
ctx.color = opt->diffopt.use_color;
ctx.expand_tabs_in_log = opt->expand_tabs_in_log;
ctx.output_encoding = get_log_output_encoding();
+ ctx.rev = opt;
if (opt->from_ident.mail_begin && opt->from_ident.name_begin)
ctx.from_ident = &opt->from_ident;
if (opt->graph)
diff --git a/pretty.c b/pretty.c
index b83a3ecd2..1b453fbb5 100644
--- a/pretty.c
+++ b/pretty.c
@@ -1084,6 +1084,7 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
struct commit_list *p;
const char *arg;
int ch;
+ char **slot;
/* these are independent of the commit */
switch (placeholder[0]) {
@@ -1194,6 +1195,14 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
load_ref_decorations(NULL, DECORATE_SHORT_REFS);
format_decorations_extended(sb, commit, c->auto_color, "", ", ", "");
return 1;
+ case 'S': /* tag/branch like --source */
+ if (!(c->pretty_ctx->rev && c->pretty_ctx->rev->sources))
+ return 0;
+ slot = revision_sources_at(c->pretty_ctx->rev->sources, commit);
+ if (!(slot && *slot))
+ return 0;
+ strbuf_addstr(sb, *slot);
+ return 1;
case 'g': /* reflog info */
switch(placeholder[1]) {
case 'd': /* reflog selector */
@@ -1498,6 +1507,9 @@ static size_t userformat_want_item(struct strbuf *sb, const char *placeholder,
case 'N':
w->notes = 1;
break;
+ case 'S':
+ w->source = 1;
+ break;
}
return 0;
}
diff --git a/pretty.h b/pretty.h
index 7359d318a..87ca5dfcb 100644
--- a/pretty.h
+++ b/pretty.h
@@ -60,6 +60,7 @@ static inline int cmit_fmt_is_mail(enum cmit_fmt fmt)
struct userformat_want {
unsigned notes:1;
+ unsigned source:1;
};
/* Set the flag "w->notes" if there is placeholder %N in "fmt". */
diff --git a/t/t4205-log-pretty-formats.sh b/t/t4205-log-pretty-formats.sh
index 978a8a66f..7df8c3d4e 100755
--- a/t/t4205-log-pretty-formats.sh
+++ b/t/t4205-log-pretty-formats.sh
@@ -621,4 +621,54 @@ test_expect_success 'trailer parsing not fooled by --- line' '
test_cmp expect actual
'
+test_expect_success 'set up %S tests' '
+ git checkout --orphan source-a &&
+ test_commit one &&
+ test_commit two &&
+ git checkout -b source-b HEAD^ &&
+ test_commit three
+'
+
+test_expect_success 'log --format=%S paints branch names' '
+ cat >expect <<-\EOF &&
+ source-b
+ source-a
+ source-b
+ EOF
+ git log --format=%S source-a source-b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'log --format=%S paints tag names' '
+ git tag -m tagged source-tag &&
+ cat >expect <<-\EOF &&
+ source-tag
+ source-a
+ source-tag
+ EOF
+ git log --format=%S source-tag source-a >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'log --format=%S paints symmetric ranges' '
+ cat >expect <<-\EOF &&
+ source-b
+ source-a
+ EOF
+ git log --format=%S source-a...source-b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '%S in git log --format works with other placeholders (part 1)' '
+ git log --format="source-b %h" source-b >expect &&
+ git log --format="%S %h" source-b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '%S in git log --format works with other placeholders (part 2)' '
+ git log --format="%h source-b" source-b >expect &&
+ git log --format="%h %S" source-b >actual &&
+ test_cmp expect actual
+'
+
test_done
diff --git a/t/t6006-rev-list-format.sh b/t/t6006-rev-list-format.sh
index ec42c2f77..da113d975 100755
--- a/t/t6006-rev-list-format.sh
+++ b/t/t6006-rev-list-format.sh
@@ -185,6 +185,10 @@ test_expect_success 'basic colors' '
test_cmp expect actual
'
+test_expect_success '%S is not a placeholder for rev-list yet' '
+ git rev-list --format="%S" -1 master | grep "%S"
+'
+
test_expect_success 'advanced colors' '
cat >expect <<-EOF &&
commit $head2
--
2.19.1
