[3/7] pretty: Add F and L format specifiers

Commit Message

Aleks Todorov March 1, 2025, 9:45 p.m. UTC

Add the F (filename) and L (line number) format specifiers. These are to
be used with blame only and therefore only work with blame.

Signed-off-by: Aleks Todorov <[e-mail]>
---
 pretty.c | 14 ++++++++++++++
 pretty.h |  5 +++++
 2 files changed, 19 insertions(+)

Patch

diff --git a/pretty.c b/pretty.c
index 0bc8ad8a9a..d2b7284854 100644
--- a/pretty.c
+++ b/pretty.c
@@ -1446,6 +1446,7 @@  static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
 	const char *arg, *eol;
 	size_t res;
 	char **slot;
+	char line_number[16];
 
 	/* these are independent of the commit */
 	res = strbuf_expand_literal(sb, placeholder);
@@ -1549,6 +1550,19 @@  static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
 	if (!commit->object.parsed)
 		parse_object(the_repository, &commit->object.oid);
 
+	if (c->pretty_ctx->is_blame) {
+		switch (placeholder[0]) {
+		case 'F':		/* filename */
+			strbuf_addstr(sb, c->pretty_ctx->filename);
+			return 1;
+		case 'L':		/* line number */
+			snprintf(line_number, sizeof(line_number), "%zu",
+				 c->pretty_ctx->line);
+			strbuf_addstr(sb, line_number);
+			return 1;
+		}
+	}
+
 	switch (placeholder[0]) {
 	case 'H':		/* commit hash */
 		strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
diff --git a/pretty.h b/pretty.h
index df267afe4a..eb54070ecb 100644
--- a/pretty.h
+++ b/pretty.h
@@ -51,6 +51,11 @@  struct pretty_print_context {
 	unsigned encode_email_headers:1;
 	struct pretty_print_describe_status *describe_status;
 
+	/* Blame fields */
+	bool is_blame;
+	const char *filename;
+	size_t line;
+
 	/*
 	 * Fields below here are manipulated internally by pp_* functions and
 	 * should not be counted on by callers.