author | Junio C Hamano <gitster@pobox.com> | |
Mon, 23 May 2011 16:58:31 +0000 (09:58 -0700) | ||
committer | Junio C Hamano <gitster@pobox.com> | |
Mon, 23 May 2011 16:58:31 +0000 (09:58 -0700) |
* jk/blame-line-porcelain:
blame: add --line-porcelain output format
blame: refactor porcelain output
add tests for various blame formats
blame: add --line-porcelain output format
blame: refactor porcelain output
add tests for various blame formats
Documentation/blame-options.txt | patch | blob | history | |
Documentation/git-blame.txt | patch | blob | history | |
builtin/blame.c | patch | blob | history | |
t/t8008-blame-formats.sh | [new file with mode: 0755] | patch | blob |
index 16e3c685762a311eda1bbc39adb8ab19e000ec97..e76195ac9721277e9ef270be8eb97dba2462bc37 100644 (file)
--porcelain::
Show in a format designed for machine consumption.
+--line-porcelain::
+ Show the porcelain format, but output commit information for
+ each line, not just the first time a commit is referenced.
+ Implies --porcelain.
+
--incremental::
Show the result incrementally in a format designed for
machine consumption.
index bb8edb4abc5adc8a7b9d46d839415997919871af..9516914236bbfa675006994620b1c8f61855de1d 100644 (file)
header, prefixed by a TAB. This is to allow adding more
header elements later.
+The porcelain format generally suppresses commit information that has
+already been seen. For example, two lines that are blamed to the same
+commit will both be shown, but the details for that commit will be shown
+only once. This is more efficient, but may require more state be kept by
+the reader. The `--line-porcelain` option can be used to output full
+commit information for each line, allowing simpler (but less efficient)
+usage like:
+
+ # count the number of lines attributed to each author
+ git blame --line-porcelain file |
+ sed -n 's/^author //p' |
+ sort | uniq -c | sort -rn
+
SPECIFYING RANGES
-----------------
diff --git a/builtin/blame.c b/builtin/blame.c
index 4242e4b513101a09b0f027188095ba3032802d3b..26a5d424b8ceb0fd403a492e46e3637fd35068ba 100644 (file)
--- a/builtin/blame.c
+++ b/builtin/blame.c
/*
* Porcelain/Incremental format wants to show a lot of details per
* commit. Instead of repeating this every line, emit it only once,
- * the first time each commit appears in the output.
+ * the first time each commit appears in the output (unless the
+ * user has specifically asked for us to repeat).
*/
-static int emit_one_suspect_detail(struct origin *suspect)
+static int emit_one_suspect_detail(struct origin *suspect, int repeat)
{
struct commit_info ci;
- if (suspect->commit->object.flags & METAINFO_SHOWN)
+ if (!repeat && (suspect->commit->object.flags & METAINFO_SHOWN))
return 0;
suspect->commit->object.flags |= METAINFO_SHOWN;
printf("%s %d %d %d\n",
sha1_to_hex(suspect->commit->object.sha1),
ent->s_lno + 1, ent->lno + 1, ent->num_lines);
- emit_one_suspect_detail(suspect);
+ emit_one_suspect_detail(suspect, 0);
write_filename_info(suspect->path);
maybe_flush_or_die(stdout, "stdout");
}
#define OUTPUT_SHOW_SCORE 0100
#define OUTPUT_NO_AUTHOR 0200
#define OUTPUT_SHOW_EMAIL 0400
+#define OUTPUT_LINE_PORCELAIN 01000
-static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent)
+static void emit_porcelain_details(struct origin *suspect, int repeat)
{
+ if (emit_one_suspect_detail(suspect, repeat) ||
+ (suspect->commit->object.flags & MORE_THAN_ONE_PATH))
+ write_filename_info(suspect->path);
+}
+
+static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent,
+ int opt)
+{
+ int repeat = opt & OUTPUT_LINE_PORCELAIN;
int cnt;
const char *cp;
struct origin *suspect = ent->suspect;
ent->s_lno + 1,
ent->lno + 1,
ent->num_lines);
- if (emit_one_suspect_detail(suspect) ||
- (suspect->commit->object.flags & MORE_THAN_ONE_PATH))
- write_filename_info(suspect->path);
+ emit_porcelain_details(suspect, repeat);
cp = nth_line(sb, ent->lno);
for (cnt = 0; cnt < ent->num_lines; cnt++) {
char ch;
- if (cnt)
+ if (cnt) {
printf("%s %d %d\n", hex,
ent->s_lno + 1 + cnt,
ent->lno + 1 + cnt);
+ if (repeat)
+ emit_porcelain_details(suspect, 1);
+ }
putchar('\t');
do {
ch = *cp++;
for (ent = sb->ent; ent; ent = ent->next) {
if (option & OUTPUT_PORCELAIN)
- emit_porcelain(sb, ent);
+ emit_porcelain(sb, ent, option);
else {
emit_other(sb, ent, option);
}
OPT_BIT('f', "show-name", &output_option, "Show original filename (Default: auto)", OUTPUT_SHOW_NAME),
OPT_BIT('n', "show-number", &output_option, "Show original linenumber (Default: off)", OUTPUT_SHOW_NUMBER),
OPT_BIT('p', "porcelain", &output_option, "Show in a format designed for machine consumption", OUTPUT_PORCELAIN),
+ OPT_BIT(0, "line-porcelain", &output_option, "Show porcelain format with per-line commit information", OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN),
OPT_BIT('c', NULL, &output_option, "Use the same output mode as git-annotate (Default: off)", OUTPUT_ANNOTATE_COMPAT),
OPT_BIT('t', NULL, &output_option, "Show raw timestamp (Default: off)", OUTPUT_RAW_TIMESTAMP),
OPT_BIT('l', NULL, &output_option, "Show long commit SHA1 (Default: off)", OUTPUT_LONG_OBJECT_NAME),
diff --git a/t/t8008-blame-formats.sh b/t/t8008-blame-formats.sh
--- /dev/null
+++ b/t/t8008-blame-formats.sh
@@ -0,0 +1,90 @@
+#!/bin/sh
+
+test_description='blame output in various formats on a simple case'
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ echo a >file &&
+ git add file
+ test_tick &&
+ git commit -m one &&
+ echo b >>file &&
+ echo c >>file &&
+ echo d >>file &&
+ test_tick &&
+ git commit -a -m two
+'
+
+cat >expect <<'EOF'
+^baf5e0b (A U Thor 2005-04-07 15:13:13 -0700 1) a
+8825379d (A U Thor 2005-04-07 15:14:13 -0700 2) b
+8825379d (A U Thor 2005-04-07 15:14:13 -0700 3) c
+8825379d (A U Thor 2005-04-07 15:14:13 -0700 4) d
+EOF
+test_expect_success 'normal blame output' '
+ git blame file >actual &&
+ test_cmp expect actual
+'
+
+ID1=baf5e0b3869e0b2b2beb395a3720c7b51eac94fc
+COMMIT1='author A U Thor
+author-mail <author@example.com>
+author-time 1112911993
+author-tz -0700
+committer C O Mitter
+committer-mail <committer@example.com>
+committer-time 1112911993
+committer-tz -0700
+summary one
+boundary
+filename file'
+ID2=8825379dfb8a1267b58e8e5bcf69eec838f685ec
+COMMIT2='author A U Thor
+author-mail <author@example.com>
+author-time 1112912053
+author-tz -0700
+committer C O Mitter
+committer-mail <committer@example.com>
+committer-time 1112912053
+committer-tz -0700
+summary two
+previous baf5e0b3869e0b2b2beb395a3720c7b51eac94fc file
+filename file'
+
+cat >expect <<EOF
+$ID1 1 1 1
+$COMMIT1
+ a
+$ID2 2 2 3
+$COMMIT2
+ b
+$ID2 3 3
+ c
+$ID2 4 4
+ d
+EOF
+test_expect_success 'blame --porcelain output' '
+ git blame --porcelain file >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<EOF
+$ID1 1 1 1
+$COMMIT1
+ a
+$ID2 2 2 3
+$COMMIT2
+ b
+$ID2 3 3
+$COMMIT2
+ c
+$ID2 4 4
+$COMMIT2
+ d
+EOF
+test_expect_success 'blame --line-porcelain output' '
+ git blame --line-porcelain file >actual &&
+ test_cmp expect actual
+'
+
+test_done