diff options
Diffstat (limited to 'builtin')
-rw-r--r-- | builtin/blame.c | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/builtin/blame.c b/builtin/blame.c index 461506c3cb..7d9e322d45 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -6,11 +6,8 @@ */ #include "cache.h" -#include "refs.h" #include "builtin.h" #include "commit.h" -#include "tag.h" -#include "tree-walk.h" #include "diff.h" #include "revision.h" #include "quote.h" @@ -60,8 +57,6 @@ static struct string_list mailmap = STRING_LIST_INIT_NODUP; static unsigned blame_move_score; static unsigned blame_copy_score; -#define BLAME_DEFAULT_MOVE_SCORE 20 -#define BLAME_DEFAULT_COPY_SCORE 40 /* Remember to update object flag allocation in object.h */ #define METAINFO_SHOWN (1u<<12) @@ -72,39 +67,6 @@ struct progress_info { int blamed_lines; }; -static int compare_commits_by_reverse_commit_date(const void *a, - const void *b, - void *c) -{ - return -compare_commits_by_commit_date(a, b, c); -} - -/* - * Fill the blob_sha1 field of an origin if it hasn't, so that later - * call to fill_origin_blob() can use it to locate the data. blob_sha1 - * for an origin is also used to pass the blame for the entire file to - * the parent to detect the case where a child's blob is identical to - * that of its parent's. - * - * This also fills origin->mode for corresponding tree path. - */ -static int fill_blob_sha1_and_mode(struct blame_origin *origin) -{ - if (!is_null_oid(&origin->blob_oid)) - return 0; - if (get_tree_entry(origin->commit->object.oid.hash, - origin->path, - origin->blob_oid.hash, &origin->mode)) - goto error_out; - if (sha1_object_info(origin->blob_oid.hash, NULL) != OBJ_BLOB) - goto error_out; - return 0; - error_out: - oidclr(&origin->blob_oid); - origin->mode = S_IFINVALID; - return -1; -} - static const char *nth_line_cb(void *data, long lno) { return blame_nth_line((struct blame_scoreboard *)data, lno); @@ -512,40 +474,6 @@ static void output(struct blame_scoreboard *sb, int option) } } -static const char *get_next_line(const char *start, const char *end) -{ - const char *nl = memchr(start, '\n', end - start); - return nl ? nl + 1 : end; -} - -/* - * To allow quick access to the contents of nth line in the - * final image, prepare an index in the scoreboard. - */ -static int prepare_lines(struct blame_scoreboard *sb) -{ - const char *buf = sb->final_buf; - unsigned long len = sb->final_buf_size; - const char *end = buf + len; - const char *p; - int *lineno; - int num = 0; - - for (p = buf; p < end; p = get_next_line(p, end)) - num++; - - ALLOC_ARRAY(sb->lineno, num + 1); - lineno = sb->lineno; - - for (p = buf; p < end; p = get_next_line(p, end)) - *lineno++ = p - buf; - - *lineno = len; - - sb->num_lines = num; - return sb->num_lines; -} - /* * Add phony grafts for use with -S; this is primarily to * support git's cvsserver that wants to give a linear history @@ -687,104 +615,6 @@ static int git_blame_config(const char *var, const char *value, void *cb) return git_default_config(var, value, cb); } -static struct commit *find_single_final(struct rev_info *revs, - const char **name_p) -{ - int i; - struct commit *found = NULL; - const char *name = NULL; - - for (i = 0; i < revs->pending.nr; i++) { - struct object *obj = revs->pending.objects[i].item; - if (obj->flags & UNINTERESTING) - continue; - obj = deref_tag(obj, NULL, 0); - if (obj->type != OBJ_COMMIT) - die("Non commit %s?", revs->pending.objects[i].name); - if (found) - die("More than one commit to dig from %s and %s?", - revs->pending.objects[i].name, name); - found = (struct commit *)obj; - name = revs->pending.objects[i].name; - } - if (name_p) - *name_p = name; - return found; -} - -static struct commit *dwim_reverse_initial(struct rev_info *revs, - const char **name_p) -{ - /* - * DWIM "git blame --reverse ONE -- PATH" as - * "git blame --reverse ONE..HEAD -- PATH" but only do so - * when it makes sense. - */ - struct object *obj; - struct commit *head_commit; - unsigned char head_sha1[20]; - - if (revs->pending.nr != 1) - return NULL; - - /* Is that sole rev a committish? */ - obj = revs->pending.objects[0].item; - obj = deref_tag(obj, NULL, 0); - if (obj->type != OBJ_COMMIT) - return NULL; - - /* Do we have HEAD? */ - if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL)) - return NULL; - head_commit = lookup_commit_reference_gently(head_sha1, 1); - if (!head_commit) - return NULL; - - /* Turn "ONE" into "ONE..HEAD" then */ - obj->flags |= UNINTERESTING; - add_pending_object(revs, &head_commit->object, "HEAD"); - - if (name_p) - *name_p = revs->pending.objects[0].name; - return (struct commit *)obj; -} - -static struct commit *find_single_initial(struct rev_info *revs, - const char **name_p) -{ - int i; - const char *final_commit_name = NULL; - struct commit *found = NULL; - - /* - * There must be one and only one negative commit, and it must be - * the boundary. - */ - for (i = 0; i < revs->pending.nr; i++) { - struct object *obj = revs->pending.objects[i].item; - if (!(obj->flags & UNINTERESTING)) - continue; - obj = deref_tag(obj, NULL, 0); - if (obj->type != OBJ_COMMIT) - die("Non commit %s?", revs->pending.objects[i].name); - if (found) - die("More than one commit to dig up from, %s and %s?", - revs->pending.objects[i].name, - final_commit_name); - found = (struct commit *) obj; - final_commit_name = revs->pending.objects[i].name; - } - - if (!final_commit_name) - found = dwim_reverse_initial(revs, &final_commit_name); - if (!final_commit_name) - die("No commit to dig up from?"); - - if (name_p) - *name_p = final_commit_name; - return found; -} - static int blame_copy_callback(const struct option *option, const char *arg, int unset) { int *opt = option->value; @@ -818,112 +648,6 @@ static int blame_move_callback(const struct option *option, const char *arg, int return 0; } -void init_scoreboard(struct blame_scoreboard *sb) -{ - memset(sb, 0, sizeof(struct blame_scoreboard)); - sb->move_score = BLAME_DEFAULT_MOVE_SCORE; - sb->copy_score = BLAME_DEFAULT_COPY_SCORE; -} - -void setup_scoreboard(struct blame_scoreboard *sb, const char *path, struct blame_origin **orig) -{ - const char *final_commit_name = NULL; - struct blame_origin *o; - struct commit *final_commit = NULL; - enum object_type type; - - if (sb->reverse && sb->contents_from) - die(_("--contents and --reverse do not blend well.")); - - if (!sb->reverse) { - sb->final = find_single_final(sb->revs, &final_commit_name); - sb->commits.compare = compare_commits_by_commit_date; - } else { - sb->final = find_single_initial(sb->revs, &final_commit_name); - sb->commits.compare = compare_commits_by_reverse_commit_date; - } - - if (sb->final && sb->contents_from) - die(_("cannot use --contents with final commit object name")); - - if (sb->reverse && sb->revs->first_parent_only) - sb->revs->children.name = NULL; - - if (!sb->final) { - /* - * "--not A B -- path" without anything positive; - * do not default to HEAD, but use the working tree - * or "--contents". - */ - setup_work_tree(); - sb->final = fake_working_tree_commit(&sb->revs->diffopt, - path, sb->contents_from); - add_pending_object(sb->revs, &(sb->final->object), ":"); - } - - if (sb->reverse && sb->revs->first_parent_only) { - final_commit = find_single_final(sb->revs, NULL); - if (!final_commit) - die(_("--reverse and --first-parent together require specified latest commit")); - } - - /* - * If we have bottom, this will mark the ancestors of the - * bottom commits we would reach while traversing as - * uninteresting. - */ - if (prepare_revision_walk(sb->revs)) - die(_("revision walk setup failed")); - - if (sb->reverse && sb->revs->first_parent_only) { - struct commit *c = final_commit; - - sb->revs->children.name = "children"; - while (c->parents && - oidcmp(&c->object.oid, &sb->final->object.oid)) { - struct commit_list *l = xcalloc(1, sizeof(*l)); - - l->item = c; - if (add_decoration(&sb->revs->children, - &c->parents->item->object, l)) - die("BUG: not unique item in first-parent chain"); - c = c->parents->item; - } - - if (oidcmp(&c->object.oid, &sb->final->object.oid)) - die(_("--reverse --first-parent together require range along first-parent chain")); - } - - if (is_null_oid(&sb->final->object.oid)) { - o = sb->final->util; - sb->final_buf = xmemdupz(o->file.ptr, o->file.size); - sb->final_buf_size = o->file.size; - } - else { - o = get_origin(sb->final, path); - if (fill_blob_sha1_and_mode(o)) - die(_("no such path %s in %s"), path, final_commit_name); - - if (DIFF_OPT_TST(&sb->revs->diffopt, ALLOW_TEXTCONV) && - textconv_object(path, o->mode, &o->blob_oid, 1, (char **) &sb->final_buf, - &sb->final_buf_size)) - ; - else - sb->final_buf = read_sha1_file(o->blob_oid.hash, &type, - &sb->final_buf_size); - - if (!sb->final_buf) - die(_("cannot read blob %s for path %s"), - oid_to_hex(&o->blob_oid), - path); - } - sb->num_read_blob++; - prepare_lines(sb); - - if (orig) - *orig = o; -} - struct blame_entry *blame_entry_prepend(struct blame_entry *head, long start, long end, struct blame_origin *o) |