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authorJunio C Hamano <gitster@pobox.com>2013-09-09 21:35:11 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-09-09 21:35:11 (GMT)
commitde9a25354aa22aa6796787f3ef3af276fba82339 (patch)
tree9cfa7f20323b853773576582322b4d209f40e93e /builtin
parent4ab4a6dfb414230bb3e13ba65a1aa2606c6102f3 (diff)
parent5ce922a014f78684a96c3d03a51decf0d21fa58d (diff)
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Merge branch 'es/blame-L-twice'
Teaches "git blame" to take more than one -L ranges. * es/blame-L-twice: line-range: reject -L line numbers less than 1 t8001/t8002: blame: add tests of -L line numbers less than 1 line-range: teach -L^:RE to search from start of file line-range: teach -L:RE to search from end of previous -L range line-range: teach -L^/RE/ to search from start of file line-range-format.txt: document -L/RE/ relative search log: teach -L/RE/ to search from end of previous -L range blame: teach -L/RE/ to search from end of previous -L range line-range: teach -L/RE/ to search relative to anchor point blame: document multiple -L support t8001/t8002: blame: add tests of multiple -L options blame: accept multiple -L ranges blame: inline one-line function into its lone caller range-set: publish API for re-use by git-blame -L line-range-format.txt: clarify -L:regex usage form git-log.txt: place each -L option variation on its own line
Diffstat (limited to 'builtin')
-rw-r--r--builtin/blame.c93
1 files changed, 50 insertions, 43 deletions
diff --git a/builtin/blame.c b/builtin/blame.c
index aa1abb6..00927e0 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -22,6 +22,7 @@
#include "utf8.h"
#include "userdiff.h"
#include "line-range.h"
+#include "line-log.h"
static char blame_usage[] = N_("git blame [options] [rev-opts] [rev] [--] file");
@@ -1937,18 +1938,6 @@ static const char *add_prefix(const char *prefix, const char *path)
return prefix_path(prefix, prefix ? strlen(prefix) : 0, path);
}
-/*
- * Parsing of -L option
- */
-static void prepare_blame_range(struct scoreboard *sb,
- const char *bottomtop,
- long lno,
- long *bottom, long *top)
-{
- if (parse_range_arg(bottomtop, nth_line_cb, sb, lno, bottom, top, sb->path))
- usage(blame_usage);
-}
-
static int git_blame_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "blame.showroot")) {
@@ -2245,29 +2234,18 @@ static int blame_move_callback(const struct option *option, const char *arg, int
return 0;
}
-static int blame_bottomtop_callback(const struct option *option, const char *arg, int unset)
-{
- const char **bottomtop = option->value;
- if (!arg)
- return -1;
- if (*bottomtop)
- die("More than one '-L n,m' option given");
- *bottomtop = arg;
- return 0;
-}
-
int cmd_blame(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
const char *path;
struct scoreboard sb;
struct origin *o;
- struct blame_entry *ent;
- long dashdash_pos, bottom, top, lno;
+ struct blame_entry *ent = NULL;
+ long dashdash_pos, lno;
const char *final_commit_name = NULL;
enum object_type type;
- static const char *bottomtop = NULL;
+ static struct string_list range_list;
static int output_option = 0, opt = 0;
static int show_stats = 0;
static const char *revs_file = NULL;
@@ -2293,13 +2271,16 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use <file>'s contents as the final image")),
{ OPTION_CALLBACK, 'C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback },
{ OPTION_CALLBACK, 'M', NULL, &opt, N_("score"), N_("Find line movements within and across files"), PARSE_OPT_OPTARG, blame_move_callback },
- OPT_CALLBACK('L', NULL, &bottomtop, N_("n,m"), N_("Process only line range n,m, counting from 1"), blame_bottomtop_callback),
+ OPT_STRING_LIST('L', NULL, &range_list, N_("n,m"), N_("Process only line range n,m, counting from 1")),
OPT__ABBREV(&abbrev),
OPT_END()
};
struct parse_opt_ctx_t ctx;
int cmd_is_annotate = !strcmp(argv[0], "annotate");
+ struct range_set ranges;
+ unsigned int range_i;
+ long anchor;
git_config(git_blame_config, NULL);
init_revisions(&revs, NULL);
@@ -2492,22 +2473,48 @@ parse_done:
num_read_blob++;
lno = prepare_lines(&sb);
- bottom = top = 0;
- if (bottomtop)
- prepare_blame_range(&sb, bottomtop, lno, &bottom, &top);
- if (lno < top || ((lno || bottom) && lno < bottom))
- die("file %s has only %lu lines", path, lno);
- if (bottom < 1)
- bottom = 1;
- if (top < 1)
- top = lno;
- bottom--;
-
- ent = xcalloc(1, sizeof(*ent));
- ent->lno = bottom;
- ent->num_lines = top - bottom;
- ent->suspect = o;
- ent->s_lno = bottom;
+ if (lno && !range_list.nr)
+ string_list_append(&range_list, xstrdup("1"));
+
+ anchor = 1;
+ range_set_init(&ranges, range_list.nr);
+ for (range_i = 0; range_i < range_list.nr; ++range_i) {
+ long bottom, top;
+ if (parse_range_arg(range_list.items[range_i].string,
+ nth_line_cb, &sb, lno, anchor,
+ &bottom, &top, sb.path))
+ usage(blame_usage);
+ if (lno < top || ((lno || bottom) && lno < bottom))
+ die("file %s has only %lu lines", path, lno);
+ if (bottom < 1)
+ bottom = 1;
+ if (top < 1)
+ top = lno;
+ bottom--;
+ range_set_append_unsafe(&ranges, bottom, top);
+ anchor = top + 1;
+ }
+ sort_and_merge_range_set(&ranges);
+
+ for (range_i = ranges.nr; range_i > 0; --range_i) {
+ const struct range *r = &ranges.ranges[range_i - 1];
+ long bottom = r->start;
+ long top = r->end;
+ struct blame_entry *next = ent;
+ ent = xcalloc(1, sizeof(*ent));
+ ent->lno = bottom;
+ ent->num_lines = top - bottom;
+ ent->suspect = o;
+ ent->s_lno = bottom;
+ ent->next = next;
+ if (next)
+ next->prev = ent;
+ origin_incref(o);
+ }
+ origin_decref(o);
+
+ range_set_release(&ranges);
+ string_list_clear(&range_list, 0);
sb.ent = ent;
sb.path = path;