This lets you stick a header right before a commit, but
suppresses headers that are duplicates. This means you can
do something like:
git log --graph --author-date-order --commit-header='== %as =='
to get a marker in the graph whenever the day changes.
This probably needs some refactoring around the setup of the
pretty-print context.
Signed-off-by: Jeff King <p...@peff.net>
---
log-tree.c | 31 +++++++++++++++++++++++++++++++
revision.c | 4 ++++
revision.h | 3 +++
3 files changed, 38 insertions(+)
diff --git a/log-tree.c b/log-tree.c
index 8c24157..76cef51 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -536,6 +536,28 @@ static void show_mergetag(struct rev_info *opt, struct
commit *commit)
for_each_mergetag(show_one_mergetag, commit, opt);
}
+static void show_commit_header(struct rev_info *opt,
+ struct pretty_print_context *pp,
+ struct commit *commit)
+{
+ struct strbuf out = STRBUF_INIT;
+
+ format_commit_message(commit, opt->commit_header, &out, pp);
+ strbuf_complete_line(&out);
+
+ if (!strbuf_cmp(&out, &opt->last_commit_header)) {
+ strbuf_release(&out);
+ return;
+ }
+
+ graph_show_precommit(opt->graph);
+ graph_show_padding(opt->graph);
+ fwrite(out.buf, 1, out.len, opt->diffopt.file);
+
+ strbuf_swap(&out, &opt->last_commit_header);
+ strbuf_release(&out);
+}
+
void show_log(struct rev_info *opt)
{
struct strbuf msgbuf = STRBUF_INIT;
@@ -591,6 +613,15 @@ void show_log(struct rev_info *opt)
}
opt->shown_one = 1;
+ if (opt->commit_header) {
+ /*
+ * XXX probably the initialization of the pretty ctx from "opt"
+ * below should happen sooner so we can use it.
+ */
+ ctx.color = opt->diffopt.use_color;
+ show_commit_header(opt, &ctx, commit);
+ }
+
/*
* If the history graph was requested,
* print the graph, up to this commit's line
diff --git a/revision.c b/revision.c
index 969b3d1..229ff86 100644
--- a/revision.c
+++ b/revision.c
@@ -1361,6 +1361,8 @@ void init_revisions(struct rev_info *revs, const char
*prefix)
}
revs->notes_opt.use_default_notes = -1;
+
+ strbuf_init(&revs->last_commit_header, 0);
}
static void add_pending_commit_list(struct rev_info *revs,
@@ -1844,6 +1846,8 @@ static int handle_revision_opt(struct rev_info *revs, int
argc, const char **arg
revs->verbose_header = 1;
revs->pretty_given = 1;
get_commit_format(arg+9, revs);
+ } else if (skip_prefix(arg, "--commit-header=", &arg)) {
+ revs->commit_header = arg;
} else if (!strcmp(arg, "--expand-tabs")) {
revs->expand_tabs_in_log = 8;
} else if (!strcmp(arg, "--no-expand-tabs")) {
diff --git a/revision.h b/revision.h
index 9fac1a6..39ec092 100644
--- a/revision.h
+++ b/revision.h
@@ -170,6 +170,9 @@ struct rev_info {
int show_log_size;
struct string_list *mailmap;
+ const char *commit_header;
+ struct strbuf last_commit_header;
+
/* Filter by commit log message */
struct grep_opt grep_filter;
/* Negate the match of grep_filter */
--
2.10.0.566.g5365f87
