Merge branch 'jc/maint-1.6.0-read-tree-overlay' into maint
[gitweb.git] / builtin-log.c
index 430d87661e37a4b08963de1ee5c31b8143ebc373..0f0adf2bab69328f5b6320c1baca58ad226570df 100644 (file)
@@ -14,9 +14,9 @@
 #include "tag.h"
 #include "reflog-walk.h"
 #include "patch-ids.h"
-#include "refs.h"
 #include "run-command.h"
 #include "shortlog.h"
+#include "remote.h"
 
 /* Set a default date-time format for git log ("log.date" config variable) */
 static const char *default_date_mode = NULL;
@@ -25,36 +25,10 @@ static int default_show_root = 1;
 static const char *fmt_patch_subject_prefix = "PATCH";
 static const char *fmt_pretty;
 
-static void add_name_decoration(const char *prefix, const char *name, struct object *obj)
-{
-       int plen = strlen(prefix);
-       int nlen = strlen(name);
-       struct name_decoration *res = xmalloc(sizeof(struct name_decoration) + plen + nlen);
-       memcpy(res->name, prefix, plen);
-       memcpy(res->name + plen, name, nlen + 1);
-       res->next = add_decoration(&name_decoration, obj, res);
-}
-
-static int add_ref_decoration(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
-{
-       struct object *obj = parse_object(sha1);
-       if (!obj)
-               return 0;
-       add_name_decoration("", refname, obj);
-       while (obj->type == OBJ_TAG) {
-               obj = ((struct tag *)obj)->tagged;
-               if (!obj)
-                       break;
-               add_name_decoration("tag: ", refname, obj);
-       }
-       return 0;
-}
-
 static void cmd_log_init(int argc, const char **argv, const char *prefix,
                      struct rev_info *rev)
 {
        int i;
-       int decorate = 0;
 
        rev->abbrev = DEFAULT_ABBREV;
        rev->commit_format = CMIT_FMT_DEFAULT;
@@ -64,6 +38,7 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
        DIFF_OPT_SET(&rev->diffopt, RECURSIVE);
        rev->show_root_diff = default_show_root;
        rev->subject_prefix = fmt_patch_subject_prefix;
+       DIFF_OPT_SET(&rev->diffopt, ALLOW_TEXTCONV);
 
        if (default_date_mode)
                rev->date_mode = parse_date_format(default_date_mode);
@@ -80,9 +55,10 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];
                if (!strcmp(arg, "--decorate")) {
-                       if (!decorate)
-                               for_each_ref(add_ref_decoration, NULL);
-                       decorate = 1;
+                       load_ref_decorations();
+                       rev->show_decorations = 1;
+               } else if (!strcmp(arg, "--source")) {
+                       rev->show_source = 1;
                } else
                        die("unrecognized argument: %s", arg);
        }
@@ -217,6 +193,11 @@ static int cmd_log_walk(struct rev_info *rev)
        if (rev->early_output)
                finish_early_output(rev);
 
+       /*
+        * For --check and --exit-code, the exit code is based on CHECK_FAILED
+        * and HAS_CHANGES being accumulated in rev->diffopt, so be careful to
+        * retain that state information if replacing rev->diffopt in this loop
+        */
        while ((commit = get_revision(rev)) != NULL) {
                log_tree_commit(rev, commit);
                if (!rev->reflog_info) {
@@ -227,7 +208,11 @@ static int cmd_log_walk(struct rev_info *rev)
                free_commit_list(commit->parents);
                commit->parents = NULL;
        }
-       return 0;
+       if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF &&
+           DIFF_OPT_TST(&rev->diffopt, CHECK_FAILED)) {
+               return 02;
+       }
+       return diff_result_code(&rev->diffopt, 0);
 }
 
 static int git_log_config(const char *var, const char *value, void *cb)
@@ -265,22 +250,13 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix)
 
 static void show_tagger(char *buf, int len, struct rev_info *rev)
 {
-       char *email_end, *p;
-       unsigned long date;
-       int tz;
+       struct strbuf out = STRBUF_INIT;
 
-       email_end = memchr(buf, '>', len);
-       if (!email_end)
-               return;
-       p = ++email_end;
-       while (isspace(*p))
-               p++;
-       date = strtoul(p, &p, 10);
-       while (isspace(*p))
-               p++;
-       tz = (int)strtol(p, NULL, 10);
-       printf("Tagger: %.*s\nDate:   %s\n", (int)(email_end - buf), buf,
-              show_date(date, tz, rev->date_mode));
+       pp_user_info("Tagger", rev->commit_format, &out, buf, rev->date_mode,
+               git_log_output_encoding ?
+               git_log_output_encoding: git_commit_encoding);
+       printf("%s\n", out.buf);
+       strbuf_release(&out);
 }
 
 static int show_object(const unsigned char *sha1, int show_tag_object,
@@ -313,7 +289,7 @@ static int show_object(const unsigned char *sha1, int show_tag_object,
 
 static int show_tree_object(const unsigned char *sha1,
                const char *base, int baselen,
-               const char *pathname, unsigned mode, int stage)
+               const char *pathname, unsigned mode, int stage, void *context)
 {
        printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : "");
        return 0;
@@ -356,7 +332,13 @@ int cmd_show(int argc, const char **argv, const char *prefix)
                                        t->tag,
                                        diff_get_color_opt(&rev.diffopt, DIFF_RESET));
                        ret = show_object(o->sha1, 1, &rev);
-                       objects[i].item = parse_object(t->tagged->sha1);
+                       if (ret)
+                               break;
+                       o = parse_object(t->tagged->sha1);
+                       if (!o)
+                               ret = error("Could not read object %s",
+                                           sha1_to_hex(t->tagged->sha1));
+                       objects[i].item = o;
                        i--;
                        break;
                }
@@ -366,7 +348,7 @@ int cmd_show(int argc, const char **argv, const char *prefix)
                                        name,
                                        diff_get_color_opt(&rev.diffopt, DIFF_RESET));
                        read_tree_recursive((struct tree *)o, "", 0, 0, NULL,
-                                       show_tree_object);
+                                       show_tree_object, NULL);
                        break;
                case OBJ_COMMIT:
                        rev.pending.nr = rev.pending.alloc = 0;
@@ -444,7 +426,7 @@ static int istitlechar(char c)
 
 static const char *fmt_patch_suffix = ".patch";
 static int numbered = 0;
-static int auto_number = 0;
+static int auto_number = 1;
 
 static char **extra_hdr;
 static int extra_hdr_nr;
@@ -461,7 +443,7 @@ static int extra_cc_alloc;
 static void add_header(const char *value)
 {
        int len = strlen(value);
-       while (value[len - 1] == '\n')
+       while (len && value[len - 1] == '\n')
                len--;
        if (!strncasecmp(value, "to: ", 4)) {
                ALLOC_GROW(extra_to, extra_to_nr + 1, extra_to_alloc);
@@ -503,6 +485,7 @@ static int git_format_config(const char *var, const char *value, void *cb)
                        return 0;
                }
                numbered = git_config_bool(var, value);
+               auto_number = auto_number && numbered;
                return 0;
        }
 
@@ -562,6 +545,7 @@ static const char *get_oneline_for_filename(struct commit *commit,
 
 static FILE *realstdout = NULL;
 static const char *output_directory = NULL;
+static int outdir_offset;
 
 static int reopen_stdout(const char *oneline, int nr, int total)
 {
@@ -588,7 +572,7 @@ static int reopen_stdout(const char *oneline, int nr, int total)
                strcpy(filename + len, fmt_patch_suffix);
        }
 
-       fprintf(realstdout, "%s\n", filename);
+       fprintf(realstdout, "%s\n", filename + outdir_offset);
        if (freopen(filename, "w", stdout) == NULL)
                return error("Cannot open patch file %s",filename);
 
@@ -646,10 +630,9 @@ static void gen_message_id(struct rev_info *info, char *base)
        const char *committer = git_committer_info(IDENT_WARN_ON_NO_NAME);
        const char *email_start = strrchr(committer, '<');
        const char *email_end = strrchr(committer, '>');
-       struct strbuf buf;
+       struct strbuf buf = STRBUF_INIT;
        if (!email_start || !email_end || email_start > email_end - 1)
                die("Could not extract email from committer identity.");
-       strbuf_init(&buf, 0);
        strbuf_addf(&buf, "%s.%lu.git.%.*s", base,
                    (unsigned long) time(NULL),
                    (int)(email_end - email_start - 1), email_start + 1);
@@ -668,7 +651,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
        const char *msg;
        const char *extra_headers = rev->extra_headers;
        struct shortlog log;
-       struct strbuf sb;
+       struct strbuf sb = STRBUF_INIT;
        int i;
        const char *encoding = "utf-8";
        struct diff_options opts;
@@ -689,7 +672,6 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
        committer = git_committer_info(0);
 
        msg = body;
-       strbuf_init(&sb, 0);
        pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822,
                     encoding);
        pp_title_line(CMIT_FMT_EMAIL, &msg, &sb, subject_start, extra_headers,
@@ -751,6 +733,27 @@ static const char *clean_message_id(const char *msg_id)
        return xmemdupz(a, z - a);
 }
 
+static const char *set_outdir(const char *prefix, const char *output_directory)
+{
+       if (output_directory && is_absolute_path(output_directory))
+               return output_directory;
+
+       if (!prefix || !*prefix) {
+               if (output_directory)
+                       return output_directory;
+               /* The user did not explicitly ask for "./" */
+               outdir_offset = 2;
+               return "./";
+       }
+
+       outdir_offset = strlen(prefix);
+       if (!output_directory)
+               return prefix;
+
+       return xstrdup(prefix_filename(prefix, outdir_offset,
+                                      output_directory));
+}
+
 int cmd_format_patch(int argc, const char **argv, const char *prefix)
 {
        struct commit *commit;
@@ -771,7 +774,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        const char *in_reply_to = NULL;
        struct patch_ids ids;
        char *add_signoff = NULL;
-       struct strbuf buf;
+       struct strbuf buf = STRBUF_INIT;
 
        git_config(git_format_config, NULL);
        init_revisions(&rev, prefix);
@@ -835,7 +838,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                        committer = git_committer_info(IDENT_ERROR_ON_NO_NAME);
                        endpos = strchr(committer, '>');
                        if (!endpos)
-                               die("bogos committer info %s\n", committer);
+                               die("bogus committer info %s", committer);
                        add_signoff = xmemdupz(committer, endpos - committer + 1);
                }
                else if (!strcmp(argv[i], "--attach")) {
@@ -879,8 +882,6 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        }
        argc = j;
 
-       strbuf_init(&buf, 0);
-
        for (i = 0; i < extra_hdr_nr; i++) {
                strbuf_addstr(&buf, extra_hdr[i]);
                strbuf_addch(&buf, '\n');
@@ -916,21 +917,20 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                die ("-n and -k are mutually exclusive.");
        if (keep_subject && subject_prefix)
                die ("--subject-prefix and -k are mutually exclusive.");
-       if (numbered_files && use_stdout)
-               die ("--numbered-files and --stdout are mutually exclusive.");
 
        argc = setup_revisions(argc, argv, &rev, "HEAD");
        if (argc > 1)
                die ("unrecognized argument: %s", argv[1]);
 
-       if (!rev.diffopt.output_format)
+       if (!rev.diffopt.output_format
+               || rev.diffopt.output_format == DIFF_FORMAT_PATCH)
                rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_PATCH;
 
        if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff)
                DIFF_OPT_SET(&rev.diffopt, BINARY);
 
-       if (!output_directory && !use_stdout)
-               output_directory = prefix;
+       if (!use_stdout)
+               output_directory = set_outdir(prefix, output_directory);
 
        if (output_directory) {
                if (use_stdout)
@@ -956,6 +956,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                 * get_revision() to do the usual traversal.
                 */
        }
+
+       /*
+        * We cannot move this anywhere earlier because we do want to
+        * know if --root was given explicitly from the comand line.
+        */
+       rev.show_root_diff = 1;
+
        if (cover_letter) {
                /* remember the range */
                int i;
@@ -1082,13 +1089,14 @@ static int add_pending_commit(const char *arg, struct rev_info *revs, int flags)
 }
 
 static const char cherry_usage[] =
-"git-cherry [-v] <upstream> [<head>] [<limit>]";
+"git cherry [-v] [<upstream> [<head> [<limit>]]]";
 int cmd_cherry(int argc, const char **argv, const char *prefix)
 {
        struct rev_info revs;
        struct patch_ids ids;
        struct commit *commit;
        struct commit_list *list = NULL;
+       struct branch *current_branch;
        const char *upstream;
        const char *head = "HEAD";
        const char *limit = NULL;
@@ -1111,7 +1119,17 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
                upstream = argv[1];
                break;
        default:
-               usage(cherry_usage);
+               current_branch = branch_get(NULL);
+               if (!current_branch || !current_branch->merge
+                                       || !current_branch->merge[0]
+                                       || !current_branch->merge[0]->dst) {
+                       fprintf(stderr, "Could not find a tracked"
+                                       " remote branch, please"
+                                       " specify <upstream> manually.\n");
+                       usage(cherry_usage);
+               }
+
+               upstream = current_branch->merge[0]->dst;
        }
 
        init_revisions(&revs, prefix);
@@ -1156,8 +1174,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
                        sign = '-';
 
                if (verbose) {
-                       struct strbuf buf;
-                       strbuf_init(&buf, 0);
+                       struct strbuf buf = STRBUF_INIT;
                        pretty_print_commit(CMIT_FMT_ONELINE, commit,
                                            &buf, 0, NULL, NULL, 0, 0);
                        printf("%c %s %s\n", sign,