git-tar-tree: no more void pointer arithmetic

[git.git] / log-tree.c

diff --git a/log-tree.c b/log-tree.c
index aaf2b94..ebb49f2 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -3,6 +3,46 @@
 #include "commit.h"
 #include "log-tree.h"
 
+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));
+       }
+}
+
+static int append_signoff(char *buf, int buf_sz, int at, const char *signoff)
+{
+       int signoff_len = strlen(signoff);
+       static const char signed_off_by[] = "Signed-off-by: ";
+       char *cp = buf;
+
+       /* Do we have enough space to add it? */
+       if (buf_sz - at <= strlen(signed_off_by) + signoff_len + 2)
+               return at;
+
+       /* First see if we already have the sign-off by the signer */
+       while (1) {
+               cp = strstr(cp, signed_off_by);
+               if (!cp)
+                       break;
+               cp += strlen(signed_off_by);
+               if ((cp + signoff_len < buf + at) &&
+                   !strncmp(cp, signoff, signoff_len) &&
+                   isspace(cp[signoff_len]))
+                       return at; /* we already have him */
+       }
+
+       strcpy(buf + at, signed_off_by);
+       at += strlen(signed_off_by);
+       strcpy(buf + at, signoff);
+       at += signoff_len;
+       buf[at++] = '\n';
+       buf[at] = 0;
+       return at;
+}
+
 void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
 {
        static char this_header[16384];
@@ -11,10 +51,14 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
        int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
        const char *extra;
        int len;
+       const char *subject = NULL, *extra_headers = opt->extra_headers;
 
        opt->loginfo = NULL;
        if (!opt->verbose_header) {
-               puts(sha1_to_hex(commit->object.sha1));
+               fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
+               if (opt->parents)
+                       show_parents(commit, abbrev_commit);
+               putchar('\n');
                return;
        }
 
@@ -38,14 +82,58 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
         * Print header line of header..
         */
 
-       if (opt->commit_format == CMIT_FMT_EMAIL)
-               printf("From %s  Thu Apr 7 15:13:13 2005\n",
-                      sha1_to_hex(commit->object.sha1));
-       else {
+       if (opt->commit_format == CMIT_FMT_EMAIL) {
+               char *sha1 = sha1_to_hex(commit->object.sha1);
+               if (opt->total > 0) {
+                       static char buffer[64];
+                       snprintf(buffer, sizeof(buffer),
+                                       "Subject: [PATCH %d/%d] ",
+                                       opt->nr, opt->total);
+                       subject = buffer;
+               } else if (opt->total == 0)
+                       subject = "Subject: [PATCH] ";
+               else
+                       subject = "Subject: ";
+
+               printf("From %s Mon Sep 17 00:00:00 2001\n", sha1);
+               if (opt->mime_boundary) {
+                       static char subject_buffer[1024];
+                       static char buffer[1024];
+                       snprintf(subject_buffer, sizeof(subject_buffer) - 1,
+                                "%s"
+                                "MIME-Version: 1.0\n"
+                                "Content-Type: multipart/mixed;\n"
+                                " boundary=\"%s%s\"\n"
+                                "\n"
+                                "This is a multi-part message in MIME "
+                                "format.\n"
+                                "--%s%s\n"
+                                "Content-Type: text/plain; "
+                                "charset=UTF-8; format=fixed\n"
+                                "Content-Transfer-Encoding: 8bit\n\n",
+                                extra_headers ? extra_headers : "",
+                                mime_boundary_leader, opt->mime_boundary,
+                                mime_boundary_leader, opt->mime_boundary);
+                       extra_headers = subject_buffer;
+
+                       snprintf(buffer, sizeof(buffer) - 1,
+                                "--%s%s\n"
+                                "Content-Type: text/x-patch;\n"
+                                " name=\"%s.diff\"\n"
+                                "Content-Transfer-Encoding: 8bit\n"
+                                "Content-Disposition: inline;\n"
+                                " filename=\"%s.diff\"\n\n",
+                                mime_boundary_leader, opt->mime_boundary,
+                                sha1, sha1);
+                       opt->diffopt.stat_sep = buffer;
+               }
+       } else {
                printf("%s%s",
                       opt->commit_format == CMIT_FMT_ONELINE ? "" : "commit ",
                       diff_unique_abbrev(commit->object.sha1, abbrev_commit));
-               if (parent) 
+               if (opt->parents)
+                       show_parents(commit, abbrev_commit);
+               if (parent)
                        printf(" (from %s)",
                               diff_unique_abbrev(parent->object.sha1,
                                                  abbrev_commit));
@@ -55,7 +143,11 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
        /*
         * And then the pretty-printed message itself
         */
-       len = pretty_print_commit(opt->commit_format, commit, ~0u, this_header, sizeof(this_header), abbrev);
+       len = pretty_print_commit(opt->commit_format, commit, ~0u, this_header, sizeof(this_header), abbrev, subject, extra_headers);
+
+       if (opt->add_signoff)
+               len = append_signoff(this_header, sizeof(this_header), len,
+                                    opt->add_signoff);
        printf("%s%s%s", this_header, extra, sep);
 }