recv_sideband: Bands #2 and #3 always go to stderr
[gitweb.git] / log-tree.c
index 5b2963998cc497177d913b6224799531d45dbb4a..63cff74350521cf4cc86cdc253cd95a036fa1c75 100644 (file)
@@ -1,25 +1,66 @@
 #include "cache.h"
 #include "diff.h"
 #include "commit.h"
+#include "tag.h"
+#include "graph.h"
 #include "log-tree.h"
 #include "reflog-walk.h"
+#include "refs.h"
 
 struct decoration name_decoration = { "object names" };
 
+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;
+}
+
+void load_ref_decorations(void)
+{
+       static int loaded;
+       if (!loaded) {
+               loaded = 1;
+               for_each_ref(add_ref_decoration, NULL);
+       }
+}
+
 static void show_parents(struct commit *commit, int abbrev)
 {
        struct commit_list *p;
        for (p = commit->parents; p ; p = p->next) {
                struct commit *parent = p->item;
-               printf(" %s", diff_unique_abbrev(parent->object.sha1, abbrev));
+               printf(" %s", find_unique_abbrev(parent->object.sha1, abbrev));
        }
 }
 
-void show_decorations(struct commit *commit)
+void show_decorations(struct rev_info *opt, struct commit *commit)
 {
        const char *prefix;
        struct name_decoration *decoration;
 
+       if (opt->show_source && commit->util)
+               printf("\t%s", (char *) commit->util);
+       if (!opt->show_decorations)
+               return;
        decoration = lookup_decoration(&name_decoration, &commit->object);
        if (!decoration)
                return;
@@ -38,18 +79,18 @@ void show_decorations(struct commit *commit)
  */
 static int detect_any_signoff(char *letter, int size)
 {
-       char ch, *cp;
+       char *cp;
        int seen_colon = 0;
        int seen_at = 0;
        int seen_name = 0;
        int seen_head = 0;
 
        cp = letter + size;
-       while (letter <= --cp && (ch = *cp) == '\n')
+       while (letter <= --cp && *cp == '\n')
                continue;
 
        while (letter <= cp) {
-               ch = *cp--;
+               char ch = *cp--;
                if (ch == '\n')
                        break;
 
@@ -165,11 +206,16 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
        }
 
        printf("From %s Mon Sep 17 00:00:00 2001\n", name);
-       if (opt->message_id)
+       graph_show_oneline(opt->graph);
+       if (opt->message_id) {
                printf("Message-Id: <%s>\n", opt->message_id);
-       if (opt->ref_message_id)
+               graph_show_oneline(opt->graph);
+       }
+       if (opt->ref_message_id) {
                printf("In-Reply-To: <%s>\nReferences: <%s>\n",
                       opt->ref_message_id, opt->ref_message_id);
+               graph_show_oneline(opt->graph);
+       }
        if (opt->mime_boundary) {
                static char subject_buffer[1024];
                static char buffer[1024];
@@ -192,7 +238,7 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
                extra_headers = subject_buffer;
 
                snprintf(buffer, sizeof(buffer) - 1,
-                        "--%s%s\n"
+                        "\n--%s%s\n"
                         "Content-Type: text/x-patch;"
                         " name=\"%s.diff\"\n"
                         "Content-Transfer-Encoding: 8bit\n"
@@ -208,53 +254,75 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
        *extra_headers_p = extra_headers;
 }
 
-void show_log(struct rev_info *opt, const char *sep)
+void show_log(struct rev_info *opt)
 {
-       struct strbuf msgbuf;
+       struct strbuf msgbuf = STRBUF_INIT;
        struct log_info *log = opt->loginfo;
        struct commit *commit = log->commit, *parent = log->parent;
        int abbrev = opt->diffopt.abbrev;
        int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
-       const char *extra;
        const char *subject = NULL, *extra_headers = opt->extra_headers;
        int need_8bit_cte = 0;
 
        opt->loginfo = NULL;
        if (!opt->verbose_header) {
-               if (commit->object.flags & BOUNDARY)
-                       putchar('-');
-               else if (commit->object.flags & UNINTERESTING)
-                       putchar('^');
-               else if (opt->left_right) {
-                       if (commit->object.flags & SYMMETRIC_LEFT)
-                               putchar('<');
-                       else
-                               putchar('>');
+               graph_show_commit(opt->graph);
+
+               if (!opt->graph) {
+                       if (commit->object.flags & BOUNDARY)
+                               putchar('-');
+                       else if (commit->object.flags & UNINTERESTING)
+                               putchar('^');
+                       else if (opt->left_right) {
+                               if (commit->object.flags & SYMMETRIC_LEFT)
+                                       putchar('<');
+                               else
+                                       putchar('>');
+                       }
                }
-               fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
-               if (opt->parents)
+               fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
+               if (opt->print_parents)
                        show_parents(commit, abbrev_commit);
-               show_decorations(commit);
+               show_decorations(opt, commit);
+               if (opt->graph && !graph_is_commit_finished(opt->graph)) {
+                       putchar('\n');
+                       graph_show_remainder(opt->graph);
+               }
                putchar(opt->diffopt.line_termination);
                return;
        }
 
        /*
-        * The "oneline" format has several special cases:
-        *  - The pretty-printed commit lacks a newline at the end
-        *    of the buffer, but we do want to make sure that we
-        *    have a newline there. If the separator isn't already
-        *    a newline, add an extra one.
-        *  - unlike other log messages, the one-line format does
-        *    not have an empty line between entries.
+        * If use_terminator is set, add a newline at the end of the entry.
+        * Otherwise, add a diffopt.line_termination character before all
+        * entries but the first.  (IOW, as a separator between entries)
         */
-       extra = "";
-       if (*sep != '\n' && opt->commit_format == CMIT_FMT_ONELINE)
-               extra = "\n";
-       if (opt->shown_one && opt->commit_format != CMIT_FMT_ONELINE)
+       if (opt->shown_one && !opt->use_terminator) {
+               /*
+                * If entries are separated by a newline, the output
+                * should look human-readable.  If the last entry ended
+                * with a newline, print the graph output before this
+                * newline.  Otherwise it will end up as a completely blank
+                * line and will look like a gap in the graph.
+                *
+                * If the entry separator is not a newline, the output is
+                * primarily intended for programmatic consumption, and we
+                * never want the extra graph output before the entry
+                * separator.
+                */
+               if (opt->diffopt.line_termination == '\n' &&
+                   !opt->missing_newline)
+                       graph_show_padding(opt->graph);
                putchar(opt->diffopt.line_termination);
+       }
        opt->shown_one = 1;
 
+       /*
+        * If the history graph was requested,
+        * print the graph, up to this commit's line
+        */
+       graph_show_commit(opt->graph);
+
        /*
         * Print header line of header..
         */
@@ -267,35 +335,47 @@ void show_log(struct rev_info *opt, const char *sep)
                fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout);
                if (opt->commit_format != CMIT_FMT_ONELINE)
                        fputs("commit ", stdout);
-               if (commit->object.flags & BOUNDARY)
-                       putchar('-');
-               else if (commit->object.flags & UNINTERESTING)
-                       putchar('^');
-               else if (opt->left_right) {
-                       if (commit->object.flags & SYMMETRIC_LEFT)
-                               putchar('<');
-                       else
-                               putchar('>');
+
+               if (!opt->graph) {
+                       if (commit->object.flags & BOUNDARY)
+                               putchar('-');
+                       else if (commit->object.flags & UNINTERESTING)
+                               putchar('^');
+                       else if (opt->left_right) {
+                               if (commit->object.flags & SYMMETRIC_LEFT)
+                                       putchar('<');
+                               else
+                                       putchar('>');
+                       }
                }
-               fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit),
+               fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit),
                      stdout);
-               if (opt->parents)
+               if (opt->print_parents)
                        show_parents(commit, abbrev_commit);
                if (parent)
                        printf(" (from %s)",
-                              diff_unique_abbrev(parent->object.sha1,
+                              find_unique_abbrev(parent->object.sha1,
                                                  abbrev_commit));
-               show_decorations(commit);
+               show_decorations(opt, commit);
                printf("%s", diff_get_color_opt(&opt->diffopt, DIFF_RESET));
-               putchar(opt->commit_format == CMIT_FMT_ONELINE ? ' ' : '\n');
+               if (opt->commit_format == CMIT_FMT_ONELINE) {
+                       putchar(' ');
+               } else {
+                       putchar('\n');
+                       graph_show_oneline(opt->graph);
+               }
                if (opt->reflog_info) {
+                       /*
+                        * setup_revisions() ensures that opt->reflog_info
+                        * and opt->graph cannot both be set,
+                        * so we don't need to worry about printing the
+                        * graph info here.
+                        */
                        show_reflog_message(opt->reflog_info,
                                    opt->commit_format == CMIT_FMT_ONELINE,
                                    opt->date_mode);
-                       if (opt->commit_format == CMIT_FMT_ONELINE) {
-                               printf("%s", sep);
+                       if (opt->commit_format == CMIT_FMT_ONELINE)
                                return;
-                       }
                }
        }
 
@@ -305,7 +385,6 @@ void show_log(struct rev_info *opt, const char *sep)
        /*
         * And then the pretty-printed message itself
         */
-       strbuf_init(&msgbuf, 0);
        if (need_8bit_cte >= 0)
                need_8bit_cte = has_non_ascii(opt->add_signoff);
        pretty_print_commit(opt->commit_format, commit, &msgbuf,
@@ -314,11 +393,30 @@ void show_log(struct rev_info *opt, const char *sep)
 
        if (opt->add_signoff)
                append_signoff(&msgbuf, opt->add_signoff);
-       if (opt->show_log_size)
+       if (opt->show_log_size) {
                printf("log size %i\n", (int)msgbuf.len);
+               graph_show_oneline(opt->graph);
+       }
+
+       /*
+        * Set opt->missing_newline if msgbuf doesn't
+        * end in a newline (including if it is empty)
+        */
+       if (!msgbuf.len || msgbuf.buf[msgbuf.len - 1] != '\n')
+               opt->missing_newline = 1;
+       else
+               opt->missing_newline = 0;
+
+       if (opt->graph)
+               graph_show_commit_msg(opt->graph, &msgbuf);
+       else
+               fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout);
+       if (opt->use_terminator) {
+               if (!opt->missing_newline)
+                       graph_show_padding(opt->graph);
+               putchar('\n');
+       }
 
-       if (msgbuf.len)
-               printf("%s%s%s", msgbuf.buf, extra, sep);
        strbuf_release(&msgbuf);
 }
 
@@ -340,7 +438,7 @@ int log_tree_diff_flush(struct rev_info *opt)
                 * an extra newline between the end of log and the
                 * output for readability.
                 */
-               show_log(opt, opt->diffopt.msg_sep);
+               show_log(opt);
                if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) &&
                    opt->verbose_header &&
                    opt->commit_format != CMIT_FMT_ONELINE) {
@@ -373,7 +471,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
        struct commit_list *parents;
        unsigned const char *sha1 = commit->object.sha1;
 
-       if (!opt->diff)
+       if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS))
                return 0;
 
        /* Root commit? */
@@ -428,7 +526,7 @@ int log_tree_commit(struct rev_info *opt, struct commit *commit)
        shown = log_tree_diff(opt, commit, &log);
        if (!shown && opt->loginfo && opt->always_show_header) {
                log.parent = NULL;
-               show_log(opt, "");
+               show_log(opt);
                shown = 1;
        }
        opt->loginfo = NULL;