This might be useful for external programs doing topological
sorting or other graph analysis. It's also handy for testing
the generation calculation code.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
Documentation/pretty-formats.txt | 1 +
pretty.c | 3 +++
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 561cc9f..c58ab52 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -133,6 +133,7 @@ The placeholders are:
- '%gD': reflog selector, e.g., `refs/stash@\{1\}`
- '%gd': shortened reflog selector, e.g., `stash@\{1\}`
- '%gs': reflog subject
+- '%G': generation number (i.e., distance of path to farthest root ancestor)
- '%Cred': switch color to red
- '%Cgreen': switch color to green
- '%Cblue': switch color to blue
diff --git a/pretty.c b/pretty.c
index f45eb54..8f1b321 100644
--- a/pretty.c
+++ b/pretty.c
@@ -965,6 +965,9 @@ static size_t format_commit_one(struct strbuf *sb, const char *placeholder,
return 2;
}
return 0; /* unknown %g placeholder */
+ case 'G':
+ strbuf_addf(sb, "%lu", commit_generation(commit));
+ return 1;
case 'N':
if (c->pretty_ctx->show_notes) {
format_display_notes(commit->object.sha1, sb,
--
1.7.6.37.g989c6
--
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