When ignoring commits, the commit that is blamed might not be
responsible for the change. Users might want to know when a particular
line has a potentially inaccurate blame.
This patch adds a config option to identify these lines by specifying
blame.markIgnoredFiles. When this option is set, each blame line is
marked with an '*'. For example:
278b6158d6fdb (Barret Rhoden 2016-04-11 13:57:54 -0400 26)
appears as:
*278b6158d6fd (Barret Rhoden 2016-04-11 13:57:54 -0400 26)
where the '*' is placed before the commit, and the hash has one fewer
characters.
Signed-off-by: Barret Rhoden <b...@google.com>
---
Documentation/config/blame.txt | 4 ++++
blame.c | 4 ++++
blame.h | 1 +
builtin/blame.c | 9 +++++++++
4 files changed, 18 insertions(+)
diff --git a/Documentation/config/blame.txt b/Documentation/config/blame.txt
index 4da2788f306d..9f7f0fcf42c9 100644
--- a/Documentation/config/blame.txt
+++ b/Documentation/config/blame.txt
@@ -26,3 +26,7 @@ blame.ignoreRevsFile::
`#` are ignored. This option may be repeated multiple times. Empty
file names will reset the list of ignored revisions. This option will
be handled before the command line option `--ignore-revs-file`.
+
+blame.markIgnoredLines::
+ Mark lines that were changed by an ignored revision with a '*' in the
+ output of linkgit:git-blame[1].
diff --git a/blame.c b/blame.c
index 4427cde95dc5..34debdba1a7f 100644
--- a/blame.c
+++ b/blame.c
@@ -480,6 +480,7 @@ void blame_coalesce(struct blame_scoreboard *sb)
for (ent = sb->ent; ent && (next = ent->next); ent = next) {
if (ent->suspect == next->suspect &&
ent->s_lno + ent->num_lines == next->s_lno &&
+ ent->ignored == next->ignored &&
ent->unblamable == next->unblamable) {
ent->num_lines += next->num_lines;
ent->next = next->next;
@@ -732,6 +733,7 @@ static void split_overlap(struct blame_entry *split,
int chunk_end_lno;
memset(split, 0, sizeof(struct blame_entry [3]));
+ split[0].ignored = split[1].ignored = split[2].ignored = e->ignored;
split[0].unblamable = e->unblamable;
split[1].unblamable = e->unblamable;
split[2].unblamable = e->unblamable;
@@ -854,6 +856,7 @@ static struct blame_entry *split_blame_at(struct
blame_entry *e, int len,
struct blame_entry *n = xcalloc(1, sizeof(struct blame_entry));
n->suspect = new_suspect;
+ n->ignored = e->ignored;
n->unblamable = e->unblamable;
n->lno = e->lno + len;
n->s_lno = e->s_lno + len;
@@ -951,6 +954,7 @@ static void blame_chunk(struct blame_entry ***dstq, struct
blame_entry ***srcq,
blame_origin_decref(e->suspect);
e->suspect = blame_origin_incref(parent);
e->s_lno += offset;
+ e->ignored = 1;
/* The top part of any ignored diff will not exist in
* the parent, and we will never be able to accurately
* blame it. We'll keep it on the blame list for the
diff --git a/blame.h b/blame.h
index 91664913d7c4..53df8b4c5b3f 100644
--- a/blame.h
+++ b/blame.h
@@ -92,6 +92,7 @@ struct blame_entry {
* scanning the lines over and over.
*/
unsigned score;
+ int ignored;
int unblamable;
};
diff --git a/builtin/blame.c b/builtin/blame.c
index 5f38e9dccddd..46d96905de75 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -53,6 +53,7 @@ static int show_progress;
static char repeated_meta_color[COLOR_MAXLEN];
static int coloring_mode;
static struct string_list ignore_revs_file_list = STRING_LIST_INIT_NODUP;
+static int mark_ignored_lines;
static struct date_mode blame_date_mode = { DATE_ISO8601 };
static size_t blame_date_width;
@@ -482,6 +483,10 @@ static void emit_other(struct blame_scoreboard *sb, struct
blame_entry *ent, int
}
}
+ if (mark_ignored_lines && ent->ignored) {
+ length--;
+ putchar('*');
+ }
if (ent->unblamable)
memset(hex, '0', length);
printf("%.*s", length, hex);
@@ -710,6 +715,10 @@ static int git_blame_config(const char *var, const char
*value, void *cb)
string_list_insert(&ignore_revs_file_list, str);
return 0;
}
+ if (!strcmp(var, "blame.markignoredlines")) {
+ mark_ignored_lines = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp(var, "color.blame.repeatedlines")) {
if (color_parse_mem(value, strlen(value), repeated_meta_color))
warning(_("invalid color '%s' in
color.blame.repeatedLines"),
--
2.21.0.rc0.258.g878e2cd30e-goog
