Mark http-fetch without -a as deprecated
[gitweb.git] / builtin / blame.c
index 101535448f2b0405c280387b63f7ce82fb7dd350..26a5d424b8ceb0fd403a492e46e3637fd35068ba 100644 (file)
@@ -41,6 +41,7 @@ static int reverse;
 static int blank_boundary;
 static int incremental;
 static int xdl_opts;
+static int abbrev = -1;
 
 static enum date_mode blame_date_mode = DATE_ISO8601;
 static size_t blame_date_width;
@@ -83,6 +84,7 @@ struct origin {
        struct commit *commit;
        mmfile_t file;
        unsigned char blob_sha1[20];
+       unsigned mode;
        char path[FLEX_ARRAY];
 };
 
@@ -92,6 +94,7 @@ struct origin {
  * Return 1 if the conversion succeeds, 0 otherwise.
  */
 int textconv_object(const char *path,
+                   unsigned mode,
                    const unsigned char *sha1,
                    char **buf,
                    unsigned long *buf_size)
@@ -100,7 +103,7 @@ int textconv_object(const char *path,
        struct userdiff_driver *textconv;
 
        df = alloc_filespec(path);
-       fill_filespec(df, sha1, S_IFREG | 0664);
+       fill_filespec(df, sha1, mode);
        textconv = get_textconv(df);
        if (!textconv) {
                free_filespec(df);
@@ -125,7 +128,7 @@ static void fill_origin_blob(struct diff_options *opt,
 
                num_read_blob++;
                if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
-                   textconv_object(o->path, o->blob_sha1, &file->ptr, &file_size))
+                   textconv_object(o->path, o->mode, o->blob_sha1, &file->ptr, &file_size))
                        ;
                else
                        file->ptr = read_sha1_file(o->blob_sha1, &type, &file_size);
@@ -313,21 +316,23 @@ static struct origin *get_origin(struct scoreboard *sb,
  * 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(struct origin *origin)
+static int fill_blob_sha1_and_mode(struct origin *origin)
 {
-       unsigned mode;
        if (!is_null_sha1(origin->blob_sha1))
                return 0;
        if (get_tree_entry(origin->commit->object.sha1,
                           origin->path,
-                          origin->blob_sha1, &mode))
+                          origin->blob_sha1, &origin->mode))
                goto error_out;
        if (sha1_object_info(origin->blob_sha1, NULL) != OBJ_BLOB)
                goto error_out;
        return 0;
  error_out:
        hashclr(origin->blob_sha1);
+       origin->mode = S_IFINVALID;
        return -1;
 }
 
@@ -360,12 +365,14 @@ static struct origin *find_origin(struct scoreboard *sb,
                        /*
                         * If the origin was newly created (i.e. get_origin
                         * would call make_origin if none is found in the
-                        * scoreboard), it does not know the blob_sha1,
+                        * scoreboard), it does not know the blob_sha1/mode,
                         * so copy it.  Otherwise porigin was in the
-                        * scoreboard and already knows blob_sha1.
+                        * scoreboard and already knows blob_sha1/mode.
                         */
-                       if (porigin->refcnt == 1)
+                       if (porigin->refcnt == 1) {
                                hashcpy(porigin->blob_sha1, cached->blob_sha1);
+                               porigin->mode = cached->mode;
+                       }
                        return porigin;
                }
                /* otherwise it was not very useful; free it */
@@ -400,6 +407,7 @@ static struct origin *find_origin(struct scoreboard *sb,
                /* The path is the same as parent */
                porigin = get_origin(sb, parent, origin->path);
                hashcpy(porigin->blob_sha1, origin->blob_sha1);
+               porigin->mode = origin->mode;
        } else {
                /*
                 * Since origin->path is a pathspec, if the parent
@@ -425,6 +433,7 @@ static struct origin *find_origin(struct scoreboard *sb,
                case 'M':
                        porigin = get_origin(sb, parent, origin->path);
                        hashcpy(porigin->blob_sha1, p->one->sha1);
+                       porigin->mode = p->one->mode;
                        break;
                case 'A':
                case 'T':
@@ -444,6 +453,7 @@ static struct origin *find_origin(struct scoreboard *sb,
 
                cached = make_origin(porigin->commit, porigin->path);
                hashcpy(cached->blob_sha1, porigin->blob_sha1);
+               cached->mode = porigin->mode;
                parent->util = cached;
        }
        return porigin;
@@ -486,6 +496,7 @@ static struct origin *find_rename(struct scoreboard *sb,
                    !strcmp(p->two->path, origin->path)) {
                        porigin = get_origin(sb, parent, p->one->path);
                        hashcpy(porigin->blob_sha1, p->one->sha1);
+                       porigin->mode = p->one->mode;
                        break;
                }
        }
@@ -1099,6 +1110,7 @@ static int find_copy_in_parent(struct scoreboard *sb,
 
                        norigin = get_origin(sb, parent, p->one->path);
                        hashcpy(norigin->blob_sha1, p->one->sha1);
+                       norigin->mode = p->one->mode;
                        fill_origin_blob(&sb->revs->diffopt, norigin, &file_p);
                        if (!file_p.ptr)
                                continue;
@@ -1301,8 +1313,7 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt)
 /*
  * Information on commits, used for output.
  */
-struct commit_info
-{
+struct commit_info {
        const char *author;
        const char *author_mail;
        unsigned long author_time;
@@ -1367,7 +1378,7 @@ static void get_ac_line(const char *inbuf, const char *what,
        timepos = tmp;
 
        *tmp = 0;
-       while (person < tmp && *tmp != ' ')
+       while (person < tmp && !(*tmp == ' ' && tmp[1] == '<'))
                tmp--;
        if (tmp <= person)
                return;
@@ -1473,13 +1484,14 @@ static void write_filename_info(const char *path)
 /*
  * 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;
@@ -1518,7 +1530,7 @@ static void found_guilty_entry(struct blame_entry *ent)
                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");
        }
@@ -1606,9 +1618,20 @@ static const char *format_time(unsigned long time, const char *tz_str,
 #define OUTPUT_SHOW_NUMBER     040
 #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;
@@ -1621,17 +1644,18 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent)
               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++;
@@ -1659,7 +1683,7 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt)
        cp = nth_line(sb, ent->lno);
        for (cnt = 0; cnt < ent->num_lines; cnt++) {
                char ch;
-               int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? 40 : 8;
+               int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? 40 : abbrev;
 
                if (suspect->commit->object.flags & UNINTERESTING) {
                        if (blank_boundary)
@@ -1671,12 +1695,17 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt)
                }
 
                printf("%.*s", length, hex);
-               if (opt & OUTPUT_ANNOTATE_COMPAT)
-                       printf("\t(%10s\t%10s\t%d)", ci.author,
+               if (opt & OUTPUT_ANNOTATE_COMPAT) {
+                       const char *name;
+                       if (opt & OUTPUT_SHOW_EMAIL)
+                               name = ci.author_mail;
+                       else
+                               name = ci.author;
+                       printf("\t(%10s\t%10s\t%d)", name,
                               format_time(ci.author_time, ci.author_tz,
                                           show_raw_time),
                               ent->lno + 1 + cnt);
-               else {
+               else {
                        if (opt & OUTPUT_SHOW_SCORE)
                                printf(" %*d %02d",
                                       max_score_digits, ent->score,
@@ -1689,9 +1718,15 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt)
                                       ent->s_lno + 1 + cnt);
 
                        if (!(opt & OUTPUT_NO_AUTHOR)) {
-                               int pad = longest_author - utf8_strwidth(ci.author);
+                               const char *name;
+                               int pad;
+                               if (opt & OUTPUT_SHOW_EMAIL)
+                                       name = ci.author_mail;
+                               else
+                                       name = ci.author;
+                               pad = longest_author - utf8_strwidth(name);
                                printf(" (%s%*s %10s",
-                                      ci.author, pad, "",
+                                      name, pad, "",
                                       format_time(ci.author_time,
                                                   ci.author_tz,
                                                   show_raw_time));
@@ -1733,7 +1768,7 @@ static void output(struct scoreboard *sb, int option)
 
        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);
                }
@@ -1829,7 +1864,10 @@ static void find_alignment(struct scoreboard *sb, int *option)
                if (!(suspect->commit->object.flags & METAINFO_SHOWN)) {
                        suspect->commit->object.flags |= METAINFO_SHOWN;
                        get_commit_info(suspect->commit, &ci, 1);
-                       num = utf8_strwidth(ci.author);
+                       if (*option & OUTPUT_SHOW_EMAIL)
+                               num = utf8_strwidth(ci.author_mail);
+                       else
+                               num = utf8_strwidth(ci.author);
                        if (longest_author < num)
                                longest_author = num;
                }
@@ -2075,7 +2113,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
                switch (st.st_mode & S_IFMT) {
                case S_IFREG:
                        if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
-                           textconv_object(read_from, null_sha1, &buf.buf, &buf_len))
+                           textconv_object(read_from, mode, null_sha1, &buf.buf, &buf_len))
                                buf.len = buf_len;
                        else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size)
                                die_errno("cannot open or read '%s'", read_from);
@@ -2274,16 +2312,19 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
                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_STRING('S', NULL, &revs_file, "file", "Use revisions from <file> instead of calling git-rev-list"),
                OPT_STRING(0, "contents", &contents_from, "file", "Use <file>'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__ABBREV(&abbrev),
                OPT_END()
        };
 
@@ -2298,8 +2339,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
        save_commit_buffer = 0;
        dashdash_pos = 0;
 
-       parse_options_start(&ctx, argc, argv, prefix, PARSE_OPT_KEEP_DASHDASH |
-                           PARSE_OPT_KEEP_ARGV0);
+       parse_options_start(&ctx, argc, argv, prefix, options,
+                           PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
        for (;;) {
                switch (parse_options_step(&ctx, options, blame_opt_usage)) {
                case PARSE_OPT_HELP:
@@ -2319,6 +2360,11 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 parse_done:
        argc = parse_options_end(&ctx);
 
+       if (abbrev == -1)
+               abbrev = default_abbrev;
+       /* one more abbrev length is needed for the boundary commit */
+       abbrev++;
+
        if (revs_file && read_ancestry(revs_file))
                die_errno("reading graft file '%s' failed", revs_file);
 
@@ -2455,11 +2501,11 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
        }
        else {
                o = get_origin(&sb, sb.final, path);
-               if (fill_blob_sha1(o))
+               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->blob_sha1, (char **) &sb.final_buf,
+                   textconv_object(path, o->mode, o->blob_sha1, (char **) &sb.final_buf,
                                    &sb.final_buf_size))
                        ;
                else