git-svn: use YAML format for mergeinfo cache when possible
[gitweb.git] / log-tree.c
index e7694a3a4ca2e6de7fe8f3b5458eb2b65591373a..c894930c1863bfcf33a01b2d98c48478aa874186 100644 (file)
@@ -8,6 +8,7 @@
 #include "refs.h"
 #include "string-list.h"
 #include "color.h"
+#include "gpg-interface.h"
 
 struct decoration name_decoration = { "object names" };
 
@@ -119,9 +120,9 @@ static int add_ref_decoration(const char *refname, const unsigned char *sha1, in
                type = DECORATION_REF_REMOTE;
        else if (!prefixcmp(refname, "refs/tags/"))
                type = DECORATION_REF_TAG;
-       else if (!prefixcmp(refname, "refs/stash"))
+       else if (!strcmp(refname, "refs/stash"))
                type = DECORATION_REF_STASH;
-       else if (!prefixcmp(refname, "HEAD"))
+       else if (!strcmp(refname, "HEAD"))
                type = DECORATION_REF_HEAD;
 
        if (!cb_data || *(int *)cb_data == DECORATE_SHORT_REFS)
@@ -298,19 +299,22 @@ static unsigned int digits_in_number(unsigned int number)
        return result;
 }
 
-void get_patch_filename(struct commit *commit, int nr, const char *suffix,
-                       struct strbuf *buf)
+void get_patch_filename(struct commit *commit, const char *subject, int nr,
+                       const char *suffix, struct strbuf *buf)
 {
        int suffix_len = strlen(suffix) + 1;
        int start_len = buf->len;
 
-       strbuf_addf(buf, commit ? "%04d-" : "%d", nr);
-       if (commit) {
+       strbuf_addf(buf, commit || subject ? "%04d-" : "%d", nr);
+       if (commit || subject) {
                int max_len = start_len + FORMAT_PATCH_NAME_MAX - suffix_len;
                struct pretty_print_context ctx = {0};
-               ctx.date_mode = DATE_NORMAL;
 
-               format_commit_message(commit, "%f", buf, &ctx);
+               if (subject)
+                       strbuf_addstr(buf, subject);
+               else if (commit)
+                       format_commit_message(commit, "%f", buf, &ctx);
+
                if (max_len < buf->len)
                        strbuf_setlen(buf, max_len);
                strbuf_addstr(buf, suffix);
@@ -383,8 +387,8 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
                         mime_boundary_leader, opt->mime_boundary);
                extra_headers = subject_buffer;
 
-               get_patch_filename(opt->numbered_files ? NULL : commit, opt->nr,
-                                   opt->patch_suffix, &filename);
+               get_patch_filename(opt->numbered_files ? NULL : commit, NULL,
+                                  opt->nr, opt->patch_suffix, &filename);
                snprintf(buffer, sizeof(buffer) - 1,
                         "\n--%s%s\n"
                         "Content-Type: text/x-patch;"
@@ -403,6 +407,129 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
        *extra_headers_p = extra_headers;
 }
 
+static void show_sig_lines(struct rev_info *opt, int status, const char *bol)
+{
+       const char *color, *reset, *eol;
+
+       color = diff_get_color_opt(&opt->diffopt,
+                                  status ? DIFF_WHITESPACE : DIFF_FRAGINFO);
+       reset = diff_get_color_opt(&opt->diffopt, DIFF_RESET);
+       while (*bol) {
+               eol = strchrnul(bol, '\n');
+               printf("%s%.*s%s%s", color, (int)(eol - bol), bol, reset,
+                      *eol ? "\n" : "");
+               bol = (*eol) ? (eol + 1) : eol;
+       }
+}
+
+static void show_signature(struct rev_info *opt, struct commit *commit)
+{
+       struct strbuf payload = STRBUF_INIT;
+       struct strbuf signature = STRBUF_INIT;
+       struct strbuf gpg_output = STRBUF_INIT;
+       int status;
+
+       if (parse_signed_commit(commit->object.sha1, &payload, &signature) <= 0)
+               goto out;
+
+       status = verify_signed_buffer(payload.buf, payload.len,
+                                     signature.buf, signature.len,
+                                     &gpg_output);
+       if (status && !gpg_output.len)
+               strbuf_addstr(&gpg_output, "No signature\n");
+
+       show_sig_lines(opt, status, gpg_output.buf);
+
+ out:
+       strbuf_release(&gpg_output);
+       strbuf_release(&payload);
+       strbuf_release(&signature);
+}
+
+static int which_parent(const unsigned char *sha1, const struct commit *commit)
+{
+       int nth;
+       const struct commit_list *parent;
+
+       for (nth = 0, parent = commit->parents; parent; parent = parent->next) {
+               if (!hashcmp(parent->item->object.sha1, sha1))
+                       return nth;
+               nth++;
+       }
+       return -1;
+}
+
+static int is_common_merge(const struct commit *commit)
+{
+       return (commit->parents
+               && commit->parents->next
+               && !commit->parents->next->next);
+}
+
+static void show_one_mergetag(struct rev_info *opt,
+                             struct commit_extra_header *extra,
+                             struct commit *commit)
+{
+       unsigned char sha1[20];
+       struct tag *tag;
+       struct strbuf verify_message;
+       int status, nth;
+       size_t payload_size, gpg_message_offset;
+
+       hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), sha1);
+       tag = lookup_tag(sha1);
+       if (!tag)
+               return; /* error message already given */
+
+       strbuf_init(&verify_message, 256);
+       if (parse_tag_buffer(tag, extra->value, extra->len))
+               strbuf_addstr(&verify_message, "malformed mergetag\n");
+       else if (is_common_merge(commit) &&
+                !hashcmp(tag->tagged->sha1,
+                         commit->parents->next->item->object.sha1))
+               strbuf_addf(&verify_message,
+                           "merged tag '%s'\n", tag->tag);
+       else if ((nth = which_parent(tag->tagged->sha1, commit)) < 0)
+               strbuf_addf(&verify_message, "tag %s names a non-parent %s\n",
+                                   tag->tag, tag->tagged->sha1);
+       else
+               strbuf_addf(&verify_message,
+                           "parent #%d, tagged '%s'\n", nth + 1, tag->tag);
+       gpg_message_offset = verify_message.len;
+
+       payload_size = parse_signature(extra->value, extra->len);
+       if ((extra->len <= payload_size) ||
+           (verify_signed_buffer(extra->value, payload_size,
+                                 extra->value + payload_size,
+                                 extra->len - payload_size,
+                                 &verify_message) &&
+            verify_message.len <= gpg_message_offset)) {
+               strbuf_addstr(&verify_message, "No signature\n");
+               status = -1;
+       }
+       else if (strstr(verify_message.buf + gpg_message_offset,
+                       ": Good signature from "))
+               status = 0;
+       else
+               status = -1;
+
+       show_sig_lines(opt, status, verify_message.buf);
+       strbuf_release(&verify_message);
+}
+
+static void show_mergetag(struct rev_info *opt, struct commit *commit)
+{
+       struct commit_extra_header *extra, *to_free;
+
+       to_free = read_commit_extra_headers(commit, NULL);
+       for (extra = to_free; extra; extra = extra->next) {
+               if (strcmp(extra->key, "mergetag"))
+                       continue; /* not a merge tag */
+               show_one_mergetag(opt, extra, commit);
+       }
+       free_commit_extra_headers(to_free);
+}
+
 void show_log(struct rev_info *opt)
 {
        struct strbuf msgbuf = STRBUF_INIT;
@@ -505,15 +632,19 @@ void show_log(struct rev_info *opt)
                         * graph info here.
                         */
                        show_reflog_message(opt->reflog_info,
-                                   opt->commit_format == CMIT_FMT_ONELINE,
-                                   opt->date_mode_explicit ?
-                                       opt->date_mode :
-                                       DATE_NORMAL);
+                                           opt->commit_format == CMIT_FMT_ONELINE,
+                                           opt->date_mode,
+                                           opt->date_mode_explicit);
                        if (opt->commit_format == CMIT_FMT_ONELINE)
                                return;
                }
        }
 
+       if (opt->show_signature) {
+               show_signature(opt, commit);
+               show_mergetag(opt, commit);
+       }
+
        if (!commit->buffer)
                return;
 
@@ -523,6 +654,7 @@ void show_log(struct rev_info *opt)
        if (ctx.need_8bit_cte >= 0)
                ctx.need_8bit_cte = has_non_ascii(opt->add_signoff);
        ctx.date_mode = opt->date_mode;
+       ctx.date_mode_explicit = opt->date_mode_explicit;
        ctx.abbrev = opt->diffopt.abbrev;
        ctx.after_subject = extra_headers;
        ctx.preserve_subject = opt->preserve_subject;
@@ -553,7 +685,7 @@ void show_log(struct rev_info *opt)
        if (opt->use_terminator) {
                if (!opt->missing_newline)
                        graph_show_padding(opt->graph);
-               putchar('\n');
+               putchar(opt->diffopt.line_termination);
        }
 
        strbuf_release(&msgbuf);
@@ -582,14 +714,15 @@ int log_tree_diff_flush(struct rev_info *opt)
                    opt->verbose_header &&
                    opt->commit_format != CMIT_FMT_ONELINE) {
                        int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;
-                       if ((pch & opt->diffopt.output_format) == pch)
-                               printf("---");
                        if (opt->diffopt.output_prefix) {
                                struct strbuf *msg = NULL;
                                msg = opt->diffopt.output_prefix(&opt->diffopt,
                                        opt->diffopt.output_prefix_data);
                                fwrite(msg->buf, msg->len, 1, stdout);
                        }
+                       if ((pch & opt->diffopt.output_format) == pch) {
+                               printf("---");
+                       }
                        putchar('\n');
                }
        }
@@ -599,9 +732,7 @@ int log_tree_diff_flush(struct rev_info *opt)
 
 static int do_diff_combined(struct rev_info *opt, struct commit *commit)
 {
-       unsigned const char *sha1 = commit->object.sha1;
-
-       diff_tree_combined_merge(sha1, opt->dense_combined_merges, opt);
+       diff_tree_combined_merge(commit, opt->dense_combined_merges, opt);
        return !opt->loginfo;
 }