X-Git-Url: http://git.tremily.us/?a=blobdiff_plain;f=builtin%2Fblame.c;h=c27ef21c2326afd29a68146d23c734c7ea708556;hb=992311cf860347df159081873fba099a94d463f4;hp=ed5d01b36a309a53619c2615aed2382b2aebf056;hpb=4052719f6dde13c85ddb2f25ee647506bdc7868b;p=git.git diff --git a/builtin/blame.c b/builtin/blame.c index ed5d01b36..c27ef21c2 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -22,12 +22,12 @@ #include "utf8.h" #include "userdiff.h" -static char blame_usage[] = "git blame [options] [rev-opts] [rev] [--] file"; +static char blame_usage[] = N_("git blame [options] [rev-opts] [rev] [--] file"); static const char *blame_opt_usage[] = { blame_usage, "", - "[rev-opts] are documented in git-rev-list(1)", + N_("[rev-opts] are documented in git-rev-list(1)"), NULL }; @@ -2069,6 +2069,55 @@ static int git_blame_config(const char *var, const char *value, void *cb) return git_default_config(var, value, cb); } +static void verify_working_tree_path(struct commit *work_tree, const char *path) +{ + struct commit_list *parents; + + for (parents = work_tree->parents; parents; parents = parents->next) { + const unsigned char *commit_sha1 = parents->item->object.sha1; + unsigned char blob_sha1[20]; + unsigned mode; + + if (!get_tree_entry(commit_sha1, path, blob_sha1, &mode) && + sha1_object_info(blob_sha1, NULL) == OBJ_BLOB) + return; + } + die("no such path '%s' in HEAD", path); +} + +static struct commit_list **append_parent(struct commit_list **tail, const unsigned char *sha1) +{ + struct commit *parent; + + parent = lookup_commit_reference(sha1); + if (!parent) + die("no such commit %s", sha1_to_hex(sha1)); + return &commit_list_insert(parent, tail)->next; +} + +static void append_merge_parents(struct commit_list **tail) +{ + int merge_head; + const char *merge_head_file = git_path("MERGE_HEAD"); + struct strbuf line = STRBUF_INIT; + + merge_head = open(merge_head_file, O_RDONLY); + if (merge_head < 0) { + if (errno == ENOENT) + return; + die("cannot open '%s' for reading", merge_head_file); + } + + while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) { + unsigned char sha1[20]; + if (line.len < 40 || get_sha1_hex(line.buf, sha1)) + die("unknown line in '%s': %s", merge_head_file, line.buf); + tail = append_parent(tail, sha1); + } + close(merge_head); + strbuf_release(&line); +} + /* * Prepare a dummy commit that represents the work tree (or staged) item. * Note that annotating work tree item never works in the reverse. @@ -2079,6 +2128,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, { struct commit *commit; struct origin *origin; + struct commit_list **parent_tail, *parent; unsigned char head_sha1[20]; struct strbuf buf = STRBUF_INIT; const char *ident; @@ -2086,20 +2136,38 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, int size, len; struct cache_entry *ce; unsigned mode; - - if (get_sha1("HEAD", head_sha1)) - die("No such ref: HEAD"); + struct strbuf msg = STRBUF_INIT; time(&now); commit = xcalloc(1, sizeof(*commit)); - commit->parents = xcalloc(1, sizeof(*commit->parents)); - commit->parents->item = lookup_commit_reference(head_sha1); commit->object.parsed = 1; commit->date = now; commit->object.type = OBJ_COMMIT; + parent_tail = &commit->parents; + + if (!resolve_ref_unsafe("HEAD", head_sha1, 1, NULL)) + die("no such ref: HEAD"); + + parent_tail = append_parent(parent_tail, head_sha1); + append_merge_parents(parent_tail); + verify_working_tree_path(commit, path); origin = make_origin(commit, path); + ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0); + strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n"); + for (parent = commit->parents; parent; parent = parent->next) + strbuf_addf(&msg, "parent %s\n", + sha1_to_hex(parent->item->object.sha1)); + strbuf_addf(&msg, + "author %s\n" + "committer %s\n\n" + "Version of %s from %s\n", + ident, ident, path, + (!contents_from ? path : + (!strcmp(contents_from, "-") ? "standard input" : contents_from))); + commit->buffer = strbuf_detach(&msg, NULL); + if (!contents_from || strcmp("-", contents_from)) { struct stat st; const char *read_from; @@ -2136,7 +2204,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, } else { /* Reading from stdin */ - contents_from = "standard input"; mode = 0; if (strbuf_read(&buf, 0, 0) < 0) die_errno("failed to read from stdin"); @@ -2181,16 +2248,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, */ cache_tree_invalidate_path(active_cache_tree, path); - commit->buffer = xmalloc(400); - ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0); - snprintf(commit->buffer, 400, - "tree 0000000000000000000000000000000000000000\n" - "parent %s\n" - "author %s\n" - "committer %s\n\n" - "Version of %s from %s\n", - sha1_to_hex(head_sha1), - ident, ident, path, contents_from ? contents_from : path); return commit; } @@ -2313,27 +2370,27 @@ int cmd_blame(int argc, const char **argv, const char *prefix) static const char *revs_file = NULL; static const char *contents_from = NULL; static const struct option options[] = { - OPT_BOOLEAN(0, "incremental", &incremental, "Show blame entries as we find them, incrementally"), - OPT_BOOLEAN('b', NULL, &blank_boundary, "Show blank SHA-1 for boundary commits (Default: off)"), - OPT_BOOLEAN(0, "root", &show_root, "Do not treat root commits as boundaries (Default: off)"), - OPT_BOOLEAN(0, "show-stats", &show_stats, "Show work cost statistics"), - OPT_BIT(0, "score-debug", &output_option, "Show output score for blame entries", OUTPUT_SHOW_SCORE), - 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), - OPT_BIT('s', NULL, &output_option, "Suppress author name and timestamp (Default: off)", OUTPUT_NO_AUTHOR), - OPT_BIT('e', "show-email", &output_option, "Show author email instead of name (Default: off)", OUTPUT_SHOW_EMAIL), - OPT_BIT('w', NULL, &xdl_opts, "Ignore whitespace differences", XDF_IGNORE_WHITESPACE), - OPT_BIT(0, "minimal", &xdl_opts, "Spend extra cycles to find better match", XDF_NEED_MINIMAL), - OPT_STRING('S', NULL, &revs_file, "file", "Use revisions from instead of calling git-rev-list"), - OPT_STRING(0, "contents", &contents_from, "file", "Use 's contents as the final image"), - { OPTION_CALLBACK, 'C', NULL, &opt, "score", "Find line copies within and across files", PARSE_OPT_OPTARG, blame_copy_callback }, - { OPTION_CALLBACK, 'M', NULL, &opt, "score", "Find line movements within and across files", PARSE_OPT_OPTARG, blame_move_callback }, - OPT_CALLBACK('L', NULL, &bottomtop, "n,m", "Process only line range n,m, counting from 1", blame_bottomtop_callback), + OPT_BOOLEAN(0, "incremental", &incremental, N_("Show blame entries as we find them, incrementally")), + OPT_BOOLEAN('b', NULL, &blank_boundary, N_("Show blank SHA-1 for boundary commits (Default: off)")), + OPT_BOOLEAN(0, "root", &show_root, N_("Do not treat root commits as boundaries (Default: off)")), + OPT_BOOLEAN(0, "show-stats", &show_stats, N_("Show work cost statistics")), + OPT_BIT(0, "score-debug", &output_option, N_("Show output score for blame entries"), OUTPUT_SHOW_SCORE), + OPT_BIT('f', "show-name", &output_option, N_("Show original filename (Default: auto)"), OUTPUT_SHOW_NAME), + OPT_BIT('n', "show-number", &output_option, N_("Show original linenumber (Default: off)"), OUTPUT_SHOW_NUMBER), + OPT_BIT('p', "porcelain", &output_option, N_("Show in a format designed for machine consumption"), OUTPUT_PORCELAIN), + OPT_BIT(0, "line-porcelain", &output_option, N_("Show porcelain format with per-line commit information"), OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN), + OPT_BIT('c', NULL, &output_option, N_("Use the same output mode as git-annotate (Default: off)"), OUTPUT_ANNOTATE_COMPAT), + OPT_BIT('t', NULL, &output_option, N_("Show raw timestamp (Default: off)"), OUTPUT_RAW_TIMESTAMP), + OPT_BIT('l', NULL, &output_option, N_("Show long commit SHA1 (Default: off)"), OUTPUT_LONG_OBJECT_NAME), + OPT_BIT('s', NULL, &output_option, N_("Suppress author name and timestamp (Default: off)"), OUTPUT_NO_AUTHOR), + OPT_BIT('e', "show-email", &output_option, N_("Show author email instead of name (Default: off)"), OUTPUT_SHOW_EMAIL), + OPT_BIT('w', NULL, &xdl_opts, N_("Ignore whitespace differences"), XDF_IGNORE_WHITESPACE), + OPT_BIT(0, "minimal", &xdl_opts, N_("Spend extra cycles to find better match"), XDF_NEED_MINIMAL), + OPT_STRING('S', NULL, &revs_file, N_("file"), N_("Use revisions from instead of calling git-rev-list")), + OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use '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__ABBREV(&abbrev), OPT_END() };