cmd_fetch_pack(): return early if finish_connect() fails
[gitweb.git] / builtin / blame.c
index 24d3dd52920542b993d4945ccb2642a74da5f759..0e102bf2c2aa26bd0dcbcb1788341eaa7ac2c037 100644 (file)
 #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
 };
 
@@ -110,6 +110,7 @@ static int diff_hunks(mmfile_t *file_a, mmfile_t *file_b, long ctxlen,
 int textconv_object(const char *path,
                    unsigned mode,
                    const unsigned char *sha1,
+                   int sha1_valid,
                    char **buf,
                    unsigned long *buf_size)
 {
@@ -117,7 +118,7 @@ int textconv_object(const char *path,
        struct userdiff_driver *textconv;
 
        df = alloc_filespec(path);
-       fill_filespec(df, sha1, mode);
+       fill_filespec(df, sha1, sha1_valid, mode);
        textconv = get_textconv(df);
        if (!textconv) {
                free_filespec(df);
@@ -142,7 +143,7 @@ static void fill_origin_blob(struct diff_options *opt,
 
                num_read_blob++;
                if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
-                   textconv_object(o->path, o->mode, o->blob_sha1, &file->ptr, &file_size))
+                   textconv_object(o->path, o->mode, o->blob_sha1, 1, &file->ptr, &file_size))
                        ;
                else
                        file->ptr = read_sha1_file(o->blob_sha1, &type, &file_size);
@@ -406,8 +407,7 @@ static struct origin *find_origin(struct scoreboard *sb,
        paths[1] = NULL;
 
        diff_tree_setup_paths(paths, &diff_opts);
-       if (diff_setup_done(&diff_opts) < 0)
-               die("diff-setup");
+       diff_setup_done(&diff_opts);
 
        if (is_null_sha1(origin->commit->object.sha1))
                do_diff_cache(parent->tree->object.sha1, &diff_opts);
@@ -493,8 +493,7 @@ static struct origin *find_rename(struct scoreboard *sb,
        diff_opts.single_follow = origin->path;
        paths[0] = NULL;
        diff_tree_setup_paths(paths, &diff_opts);
-       if (diff_setup_done(&diff_opts) < 0)
-               die("diff-setup");
+       diff_setup_done(&diff_opts);
 
        if (is_null_sha1(origin->commit->object.sha1))
                do_diff_cache(parent->tree->object.sha1, &diff_opts);
@@ -1074,8 +1073,7 @@ static int find_copy_in_parent(struct scoreboard *sb,
 
        paths[0] = NULL;
        diff_tree_setup_paths(paths, &diff_opts);
-       if (diff_setup_done(&diff_opts) < 0)
-               die("diff-setup");
+       diff_setup_done(&diff_opts);
 
        /* Try "find copies harder" on new path if requested;
         * we do not want to use diffcore_rename() actually to
@@ -1837,6 +1835,16 @@ static int read_ancestry(const char *graft_file)
        return 0;
 }
 
+static int update_auto_abbrev(int auto_abbrev, struct origin *suspect)
+{
+       const char *uniq = find_unique_abbrev(suspect->commit->object.sha1,
+                                             auto_abbrev);
+       int len = strlen(uniq);
+       if (auto_abbrev < len)
+               return len;
+       return auto_abbrev;
+}
+
 /*
  * How many columns do we need to show line numbers, authors,
  * and filenames?
@@ -1847,12 +1855,16 @@ static void find_alignment(struct scoreboard *sb, int *option)
        int longest_dst_lines = 0;
        unsigned largest_score = 0;
        struct blame_entry *e;
+       int compute_auto_abbrev = (abbrev < 0);
+       int auto_abbrev = default_abbrev;
 
        for (e = sb->ent; e; e = e->next) {
                struct origin *suspect = e->suspect;
                struct commit_info ci;
                int num;
 
+               if (compute_auto_abbrev)
+                       auto_abbrev = update_auto_abbrev(auto_abbrev, suspect);
                if (strcmp(suspect->path, sb->path))
                        *option |= OUTPUT_SHOW_NAME;
                num = strlen(suspect->path);
@@ -1880,6 +1892,10 @@ static void find_alignment(struct scoreboard *sb, int *option)
        max_orig_digits = decimal_width(longest_src_lines);
        max_digits = decimal_width(longest_dst_lines);
        max_score_digits = decimal_width(largest_score);
+
+       if (compute_auto_abbrev)
+               /* one more abbrev length is needed for the boundary commit */
+               abbrev = auto_abbrev + 1;
 }
 
 /*
@@ -2105,7 +2121,7 @@ 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, mode, null_sha1, &buf_ptr, &buf_len))
+                           textconv_object(read_from, mode, null_sha1, 0, &buf_ptr, &buf_len))
                                strbuf_attach(&buf, buf_ptr, buf_len, buf_len + 1);
                        else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size)
                                die_errno("cannot open or read '%s'", read_from);
@@ -2153,7 +2169,8 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
        ce = xcalloc(1, size);
        hashcpy(ce->sha1, origin->blob_sha1);
        memcpy(ce->name, path, len);
-       ce->ce_flags = create_ce_flags(len, 0);
+       ce->ce_flags = create_ce_flags(0);
+       ce->ce_namelen = len;
        ce->ce_mode = create_ce_mode(mode);
        add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
 
@@ -2296,27 +2313,27 @@ 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 <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_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 <file> instead of calling git-rev-list")),
+               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__ABBREV(&abbrev),
                OPT_END()
        };
@@ -2353,10 +2370,9 @@ 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 (0 < 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);
@@ -2498,7 +2514,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
                        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_sha1, (char **) &sb.final_buf,
+                   textconv_object(path, o->mode, o->blob_sha1, 1, (char **) &sb.final_buf,
                                    &sb.final_buf_size))
                        ;
                else