Documentation: git-filter-branch honors replacement refs
[gitweb.git] / pretty.c
index 13618d82644b72adc6068add826daa72dfe64f38..f45eb54e4c99b8d67e4aa85f9a6218ea7a560592 100644 (file)
--- a/pretty.c
+++ b/pretty.c
@@ -318,16 +318,16 @@ static void add_rfc2047(struct strbuf *sb, const char *line, int len,
        strbuf_addstr(sb, "?=");
 }
 
-void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
-                 const char *line, enum date_mode dmode,
-                 const char *encoding)
+void pp_user_info(const struct pretty_print_context *pp,
+                 const char *what, struct strbuf *sb,
+                 const char *line, const char *encoding)
 {
        char *date;
        int namelen;
        unsigned long time;
        int tz;
 
-       if (fmt == CMIT_FMT_ONELINE)
+       if (pp->fmt == CMIT_FMT_ONELINE)
                return;
        date = strchr(line, '>');
        if (!date)
@@ -336,9 +336,10 @@ void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
        time = strtoul(date, &date, 10);
        tz = strtol(date, NULL, 10);
 
-       if (fmt == CMIT_FMT_EMAIL) {
+       if (pp->fmt == CMIT_FMT_EMAIL) {
                char *name_tail = strchr(line, '<');
                int display_name_length;
+               int final_line;
                if (!name_tail)
                        return;
                while (line < name_tail && isspace(name_tail[-1]))
@@ -353,22 +354,30 @@ void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
                        add_rfc2047(sb, quoted.buf, quoted.len, encoding);
                        strbuf_release(&quoted);
                }
+               for (final_line = 0; final_line < sb->len; final_line++)
+                       if (sb->buf[sb->len - final_line - 1] == '\n')
+                               break;
+               if (namelen - display_name_length + final_line > 78) {
+                       strbuf_addch(sb, '\n');
+                       if (!isspace(name_tail[0]))
+                               strbuf_addch(sb, ' ');
+               }
                strbuf_add(sb, name_tail, namelen - display_name_length);
                strbuf_addch(sb, '\n');
        } else {
                strbuf_addf(sb, "%s: %.*s%.*s\n", what,
-                             (fmt == CMIT_FMT_FULLER) ? 4 : 0,
+                             (pp->fmt == CMIT_FMT_FULLER) ? 4 : 0,
                              "    ", namelen, line);
        }
-       switch (fmt) {
+       switch (pp->fmt) {
        case CMIT_FMT_MEDIUM:
-               strbuf_addf(sb, "Date:   %s\n", show_date(time, tz, dmode));
+               strbuf_addf(sb, "Date:   %s\n", show_date(time, tz, pp->date_mode));
                break;
        case CMIT_FMT_EMAIL:
                strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
                break;
        case CMIT_FMT_FULLER:
-               strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode));
+               strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, pp->date_mode));
                break;
        default:
                /* notin' */
@@ -399,12 +408,12 @@ static const char *skip_empty_lines(const char *msg)
        return msg;
 }
 
-static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
-                       const struct commit *commit, int abbrev)
+static void add_merge_info(const struct pretty_print_context *pp,
+                          struct strbuf *sb, const struct commit *commit)
 {
        struct commit_list *parent = commit->parents;
 
-       if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
+       if ((pp->fmt == CMIT_FMT_ONELINE) || (pp->fmt == CMIT_FMT_EMAIL) ||
            !parent || !parent->next)
                return;
 
@@ -413,8 +422,8 @@ static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
        while (parent) {
                struct commit *p = parent->item;
                const char *hex = NULL;
-               if (abbrev)
-                       hex = find_unique_abbrev(p->object.sha1, abbrev);
+               if (pp->abbrev)
+                       hex = find_unique_abbrev(p->object.sha1, pp->abbrev);
                if (!hex)
                        hex = sha1_to_hex(p->object.sha1);
                parent = parent->next;
@@ -1075,7 +1084,7 @@ void userformat_find_requirements(const char *fmt, struct userformat_want *w)
                        return;
                fmt = user_format;
        }
-       strbuf_expand(&dummy, user_format, userformat_want_item, w);
+       strbuf_expand(&dummy, fmt, userformat_want_item, w);
        strbuf_release(&dummy);
 }
 
@@ -1107,9 +1116,7 @@ void format_commit_message(const struct commit *commit,
                free(context.message);
 }
 
-static void pp_header(enum cmit_fmt fmt,
-                     int abbrev,
-                     enum date_mode dmode,
+static void pp_header(const struct pretty_print_context *pp,
                      const char *encoding,
                      const struct commit *commit,
                      const char **msg_p,
@@ -1129,7 +1136,7 @@ static void pp_header(enum cmit_fmt fmt,
                        /* End of header */
                        return;
 
-               if (fmt == CMIT_FMT_RAW) {
+               if (pp->fmt == CMIT_FMT_RAW) {
                        strbuf_add(sb, line, linelen);
                        continue;
                }
@@ -1149,7 +1156,7 @@ static void pp_header(enum cmit_fmt fmt,
                                ;
                        /* with enough slop */
                        strbuf_grow(sb, num * 50 + 20);
-                       add_merge_info(fmt, sb, commit, abbrev);
+                       add_merge_info(pp, sb, commit);
                        parents_shown = 1;
                }
 
@@ -1160,32 +1167,31 @@ static void pp_header(enum cmit_fmt fmt,
                 */
                if (!memcmp(line, "author ", 7)) {
                        strbuf_grow(sb, linelen + 80);
-                       pp_user_info("Author", fmt, sb, line + 7, dmode, encoding);
+                       pp_user_info(pp, "Author", sb, line + 7, encoding);
                }
                if (!memcmp(line, "committer ", 10) &&
-                   (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
+                   (pp->fmt == CMIT_FMT_FULL || pp->fmt == CMIT_FMT_FULLER)) {
                        strbuf_grow(sb, linelen + 80);
-                       pp_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
+                       pp_user_info(pp, "Commit", sb, line + 10, encoding);
                }
        }
 }
 
-void pp_title_line(enum cmit_fmt fmt,
+void pp_title_line(const struct pretty_print_context *pp,
                   const char **msg_p,
                   struct strbuf *sb,
-                  const char *subject,
-                  const char *after_subject,
                   const char *encoding,
                   int need_8bit_cte)
 {
        struct strbuf title;
 
        strbuf_init(&title, 80);
-       *msg_p = format_subject(&title, *msg_p, " ");
+       *msg_p = format_subject(&title, *msg_p,
+                               pp->preserve_subject ? "\n" : " ");
 
        strbuf_grow(sb, title.len + 1024);
-       if (subject) {
-               strbuf_addstr(sb, subject);
+       if (pp->subject) {
+               strbuf_addstr(sb, pp->subject);
                add_rfc2047(sb, title.buf, title.len, encoding);
        } else {
                strbuf_addbuf(sb, &title);
@@ -1199,16 +1205,16 @@ void pp_title_line(enum cmit_fmt fmt,
                        "Content-Transfer-Encoding: 8bit\n";
                strbuf_addf(sb, header_fmt, encoding);
        }
-       if (after_subject) {
-               strbuf_addstr(sb, after_subject);
+       if (pp->after_subject) {
+               strbuf_addstr(sb, pp->after_subject);
        }
-       if (fmt == CMIT_FMT_EMAIL) {
+       if (pp->fmt == CMIT_FMT_EMAIL) {
                strbuf_addch(sb, '\n');
        }
        strbuf_release(&title);
 }
 
-void pp_remainder(enum cmit_fmt fmt,
+void pp_remainder(const struct pretty_print_context *pp,
                  const char **msg_p,
                  struct strbuf *sb,
                  int indent)
@@ -1225,7 +1231,7 @@ void pp_remainder(enum cmit_fmt fmt,
                if (is_empty_line(line, &linelen)) {
                        if (first)
                                continue;
-                       if (fmt == CMIT_FMT_SHORT)
+                       if (pp->fmt == CMIT_FMT_SHORT)
                                break;
                }
                first = 0;
@@ -1250,19 +1256,19 @@ char *reencode_commit_message(const struct commit *commit, const char **encoding
        return logmsg_reencode(commit, encoding);
 }
 
-void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
-                        struct strbuf *sb,
-                        const struct pretty_print_context *context)
+void pretty_print_commit(const struct pretty_print_context *pp,
+                        const struct commit *commit,
+                        struct strbuf *sb)
 {
        unsigned long beginning_of_body;
        int indent = 4;
        const char *msg = commit->buffer;
        char *reencoded;
        const char *encoding;
-       int need_8bit_cte = context->need_8bit_cte;
+       int need_8bit_cte = pp->need_8bit_cte;
 
-       if (fmt == CMIT_FMT_USERFORMAT) {
-               format_commit_message(commit, user_format, sb, context);
+       if (pp->fmt == CMIT_FMT_USERFORMAT) {
+               format_commit_message(commit, user_format, sb, pp);
                return;
        }
 
@@ -1271,14 +1277,14 @@ void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
                msg = reencoded;
        }
 
-       if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
+       if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL)
                indent = 0;
 
        /*
         * We need to check and emit Content-type: to mark it
         * as 8-bit if we haven't done so.
         */
-       if (fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) {
+       if (pp->fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) {
                int i, ch, in_body;
 
                for (in_body = i = 0; (ch = msg[i]); i++) {
@@ -1297,9 +1303,8 @@ void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
                }
        }
 
-       pp_header(fmt, context->abbrev, context->date_mode, encoding,
-                 commit, &msg, sb);
-       if (fmt != CMIT_FMT_ONELINE && !context->subject) {
+       pp_header(pp, encoding, commit, &msg, sb);
+       if (pp->fmt != CMIT_FMT_ONELINE && !pp->subject) {
                strbuf_addch(sb, '\n');
        }
 
@@ -1307,17 +1312,16 @@ void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
        msg = skip_empty_lines(msg);
 
        /* These formats treat the title line specially. */
-       if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
-               pp_title_line(fmt, &msg, sb, context->subject,
-                             context->after_subject, encoding, need_8bit_cte);
+       if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL)
+               pp_title_line(pp, &msg, sb, encoding, need_8bit_cte);
 
        beginning_of_body = sb->len;
-       if (fmt != CMIT_FMT_ONELINE)
-               pp_remainder(fmt, &msg, sb, indent);
+       if (pp->fmt != CMIT_FMT_ONELINE)
+               pp_remainder(pp, &msg, sb, indent);
        strbuf_rtrim(sb);
 
        /* Make sure there is an EOLN for the non-oneline case */
-       if (fmt != CMIT_FMT_ONELINE)
+       if (pp->fmt != CMIT_FMT_ONELINE)
                strbuf_addch(sb, '\n');
 
        /*
@@ -1325,12 +1329,20 @@ void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
         * format.  Make sure we did not strip the blank line
         * between the header and the body.
         */
-       if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
+       if (pp->fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
                strbuf_addch(sb, '\n');
 
-       if (context->show_notes)
+       if (pp->show_notes)
                format_display_notes(commit->object.sha1, sb, encoding,
                                     NOTES_SHOW_HEADER | NOTES_INDENT);
 
        free(reencoded);
 }
+
+void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
+                   struct strbuf *sb)
+{
+       struct pretty_print_context pp = {0};
+       pp.fmt = fmt;
+       pretty_print_commit(&pp, commit, sb);
+}