ui-log: Move 'Age' column when commit graph is present

When the commit graph is present, we prefer to draw it along the left edge,
and moving the 'Age' column to the right of the 'Author' column, like in gitk.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 30 insertions, 12 deletions

diff --git a/ui-log.c b/ui-log.c
index 05b5c29..8add66a 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -3,408 +3,426 @@
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
 #include "vector.h"
 
 int files, add_lines, rem_lines;
 
 /*
  * The list of available column colors in the commit graph.
  */
 static const char *column_colors_html[] = {
         "<span class='column1'>",
         "<span class='column2'>",
         "<span class='column3'>",
         "<span class='column4'>",
         "<span class='column5'>",
         "<span class='column6'>",
         "</span>",
 };
 
 #define COLUMN_COLORS_HTML_MAX (ARRAY_SIZE(column_colors_html) - 1)
 
 void count_lines(char *line, int size)
 {
         if (size <= 0)
                 return;
 
         if (line[0] == '+')
                 add_lines++;
 
         else if (line[0] == '-')
                 rem_lines++;
 }
 
 void inspect_files(struct diff_filepair *pair)
 {
         unsigned long old_size = 0;
         unsigned long new_size = 0;
         int binary = 0;
 
         files++;
         if (ctx.repo->enable_log_linecount)
                 cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
                                 &new_size, &binary, 0, ctx.qry.ignorews,
                                 count_lines);
 }
 
 void show_commit_decorations(struct commit *commit)
 {
         struct name_decoration *deco;
         static char buf[1024];
 
         buf[sizeof(buf) - 1] = 0;
         deco = lookup_decoration(&name_decoration, &commit->object);
         while (deco) {
                 if (!prefixcmp(deco->name, "refs/heads/")) {
                         strncpy(buf, deco->name + 11, sizeof(buf) - 1);
                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
                                       ctx.qry.vpath, 0, NULL, NULL,
                                       ctx.qry.showmsg);
                 }
                 else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
                         strncpy(buf, deco->name + 15, sizeof(buf) - 1);
                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
                 }
                 else if (!prefixcmp(deco->name, "refs/tags/")) {
                         strncpy(buf, deco->name + 10, sizeof(buf) - 1);
                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
                 }
                 else if (!prefixcmp(deco->name, "refs/remotes/")) {
                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
                         cgit_log_link(buf, NULL, "remote-deco", NULL,
                                       sha1_to_hex(commit->object.sha1),
                                       ctx.qry.vpath, 0, NULL, NULL,
                                       ctx.qry.showmsg);
                 }
                 else {
                         strncpy(buf, deco->name, sizeof(buf) - 1);
                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
                                          sha1_to_hex(commit->object.sha1),
                                          ctx.qry.vpath, 0);
                 }
                 deco = deco->next;
         }
 }
 
 void print_commit(struct commit *commit, struct rev_info *revs)
 {
         struct commitinfo *info;
         char *tmp;
-        int cols = 2;
+        int cols = revs->graph ? 3 : 2;
         struct strbuf graphbuf = STRBUF_INIT;
         struct strbuf msgbuf = STRBUF_INIT;
 
         if (ctx.repo->enable_log_filecount) {
                 cols++;
                 if (ctx.repo->enable_log_linecount)
                         cols++;
         }
 
         if (revs->graph) {
                 /* Advance graph until current commit */
                 while (!graph_next_line(revs->graph, &graphbuf)) {
                         /* Print graph segment in otherwise empty table row */
-                        html("<tr class='nohover'><td/><td class='commitgraph'>");
+                        html("<tr class='nohover'><td class='commitgraph'>");
                         html(graphbuf.buf);
                         htmlf("</td><td colspan='%d' /></tr>\n", cols);
                         strbuf_setlen(&graphbuf, 0);
                 }
                 /* Current commit's graph segment is now ready in graphbuf */
         }
 
         info = cgit_parse_commit(commit);
-        htmlf("<tr%s><td>",
-                ctx.qry.showmsg ? " class='logheader'" : "");
-        tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
-        tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
-        html_link_open(tmp, NULL, NULL);
-        cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
-        html_link_close();
-        html("</td>");
+        htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : "");
 
         if (revs->graph) {
                 /* Print graph segment for current commit */
                 html("<td class='commitgraph'>");
                 html(graphbuf.buf);
                 html("</td>");
                 strbuf_setlen(&graphbuf, 0);
         }
+        else {
+                html("<td>");
+                tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
+                tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
+                html_link_open(tmp, NULL, NULL);
+                cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
+                html_link_close();
+                html("</td>");
+        }
 
         htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
         if (ctx.qry.showmsg) {
                 /* line-wrap long commit subjects instead of truncating them */
                 size_t subject_len = strlen(info->subject);
 
                 if (subject_len > ctx.cfg.max_msg_len &&
                     ctx.cfg.max_msg_len >= 15) {
                         /* symbol for signaling line-wrap (in PAGE_ENCODING) */
                         const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 };
                         int i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 
                         /* Rewind i to preceding space character */
                         while (i > 0 && !isspace(info->subject[i]))
                                 --i;
                         if (!i) /* Oops, zero spaces. Reset i */
                                 i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 
                         /* add remainder starting at i to msgbuf */
                         strbuf_add(&msgbuf, info->subject + i, subject_len - i);
                         strbuf_trim(&msgbuf);
                         strbuf_add(&msgbuf, "\n\n", 2);
 
                         /* Place wrap_symbol at position i in info->subject */
                         strcpy(info->subject + i, wrap_symbol);
                 }
         }
         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
                          sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
         show_commit_decorations(commit);
         html("</td><td>");
         html_txt(info->author);
+
+        if (revs->graph) {
+                html("</td><td>");
+                tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
+                tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
+                html_link_open(tmp, NULL, NULL);
+                cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
+                html_link_close();
+        }
+
         if (ctx.repo->enable_log_filecount) {
                 files = 0;
                 add_lines = 0;
                 rem_lines = 0;
                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
                 html("</td><td>");
                 htmlf("%d", files);
                 if (ctx.repo->enable_log_linecount) {
                         html("</td><td>");
                         htmlf("-%d/+%d", rem_lines, add_lines);
                 }
         }
         html("</td></tr>\n");
 
         if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
-                html("<tr class='nohover'><td/>"); /* Empty 'Age' column */
+                html("<tr class='nohover'>");
 
                 if (ctx.qry.showmsg) {
                         /* Concatenate commit message + notes in msgbuf */
                         if (info->msg && *(info->msg)) {
                                 strbuf_addstr(&msgbuf, info->msg);
                                 strbuf_addch(&msgbuf, '\n');
                         }
                         format_note(NULL, commit->object.sha1, &msgbuf,
                                     PAGE_ENCODING,
                                     NOTES_SHOW_HEADER | NOTES_INDENT);
                         strbuf_addch(&msgbuf, '\n');
                         strbuf_ltrim(&msgbuf);
                 }
 
                 if (revs->graph) {
                         int lines = 0;
 
                         /* Calculate graph padding */
                         if (ctx.qry.showmsg) {
                                 /* Count #lines in commit message + notes */
                                 const char *p = msgbuf.buf;
                                 lines = 1;
                                 while ((p = strchr(p, '\n'))) {
                                         p++;
                                         lines++;
                                 }
                         }
 
                         /* Print graph padding */
                         html("<td class='commitgraph'>");
                         while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
                                 if (graphbuf.len)
                                         html("\n");
                                 strbuf_setlen(&graphbuf, 0);
                                 graph_next_line(revs->graph, &graphbuf);
                                 html(graphbuf.buf);
                                 lines--;
                         }
                         html("</td>\n");
                 }
+                else
+                        html("<td/>"); /* Empty 'Age' column */
 
                 /* Print msgbuf into remainder of table row */
                 htmlf("<td colspan='%d'%s>\n", cols,
                         ctx.qry.showmsg ? " class='logmsg'" : "");
                 html_txt(msgbuf.buf);
                 html("</td></tr>\n");
         }
 
         strbuf_release(&msgbuf);
         strbuf_release(&graphbuf);
         cgit_free_commitinfo(info);
 }
 
 static const char *disambiguate_ref(const char *ref)
 {
         unsigned char sha1[20];
         const char *longref;
 
         longref = fmt("refs/heads/%s", ref);
         if (get_sha1(longref, sha1) == 0)
                 return longref;
 
         return ref;
 }
 
 static char *next_token(char **src)
 {
         char *result;
 
         if (!src || !*src)
                 return NULL;
         while (isspace(**src))
                 (*src)++;
         if (!**src)
                 return NULL;
         result = *src;
         while (**src) {
                 if (isspace(**src)) {
                         **src = '\0';
                         (*src)++;
                         break;
                 }
                 (*src)++;
         }
         return result;
 }
 
 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
                     char *path, int pager, int commit_graph)
 {
         struct rev_info rev;
         struct commit *commit;
         struct vector vec = VECTOR_INIT(char *);
         int i, columns = 3;
         char *arg;
 
         /* First argv is NULL */
         vector_push(&vec, NULL, 0);
 
         if (!tip)
                 tip = ctx.qry.head;
         tip = disambiguate_ref(tip);
         vector_push(&vec, &tip, 0);
 
         if (grep && pattern && *pattern) {
                 pattern = xstrdup(pattern);
                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
                     !strcmp(grep, "committer")) {
                         arg = fmt("--%s=%s", grep, pattern);
                         vector_push(&vec, &arg, 0);
                 }
                 if (!strcmp(grep, "range")) {
                         /* Split the pattern at whitespace and add each token
                          * as a revision expression. Do not accept other
                          * rev-list options. Also, replace the previously
                          * pushed tip (it's no longer relevant).
                          */
                         vec.count--;
                         while ((arg = next_token(&pattern))) {
                                 if (*arg == '-') {
                                         fprintf(stderr, "Bad range expr: %s\n",
                                                 arg);
                                         break;
                                 }
                                 vector_push(&vec, &arg, 0);
                         }
                 }
         }
         if (commit_graph) {
                 static const char *graph_arg = "--graph";
                 static const char *color_arg = "--color";
                 vector_push(&vec, &graph_arg, 0);
                 vector_push(&vec, &color_arg, 0);
                 graph_set_column_colors(column_colors_html,
                                         COLUMN_COLORS_HTML_MAX);
         }
 
         if (path) {
                 arg = "--";
                 vector_push(&vec, &arg, 0);
                 vector_push(&vec, &path, 0);
         }
 
         /* Make sure the vector is NULL-terminated */
         vector_push(&vec, NULL, 0);
         vec.count--;
 
         init_revisions(&rev, NULL);
         rev.abbrev = DEFAULT_ABBREV;
         rev.commit_format = CMIT_FMT_DEFAULT;
         rev.verbose_header = 1;
         rev.show_root_diff = 0;
         setup_revisions(vec.count, vec.data, &rev, NULL);
         load_ref_decorations(DECORATE_FULL_REFS);
         rev.show_decorations = 1;
         rev.grep_filter.regflags |= REG_ICASE;
         compile_grep_patterns(&rev.grep_filter);
         prepare_revision_walk(&rev);
 
         if (pager)
                 html("<table class='list nowrap'>");
 
-        html("<tr class='nohover'><th class='left'>Age</th>");
+        html("<tr class='nohover'>");
         if (commit_graph)
                 html("<th></th>");
+        else
+                html("<th class='left'>Age</th>");
         html("<th class='left'>Commit message");
         if (pager) {
                 html(" (");
                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
                               NULL, ctx.qry.head, ctx.qry.sha1,
                               ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
                 html(")");
         }
         html("</th><th class='left'>Author</th>");
+        if (commit_graph)
+                html("<th class='left'>Age</th>");
         if (ctx.repo->enable_log_filecount) {
                 html("<th class='left'>Files</th>");
                 columns++;
                 if (ctx.repo->enable_log_linecount) {
                         html("<th class='left'>Lines</th>");
                         columns++;
                 }
         }
         html("</tr>\n");
 
         if (ofs<0)
                 ofs = 0;
 
         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
 
         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
                 print_commit(commit, &rev);
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
         if (pager) {
                 html("</table><div class='pager'>");
                 if (ofs > 0) {
                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
                                       ctx.qry.sha1, ctx.qry.vpath,
                                       ofs - cnt, ctx.qry.grep,
                                       ctx.qry.search, ctx.qry.showmsg);
                         html("&nbsp;");
                 }
                 if ((commit = get_revision(&rev)) != NULL) {
                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
                                       ctx.qry.sha1, ctx.qry.vpath,
                                       ofs + cnt, ctx.qry.grep,
                                       ctx.qry.search, ctx.qry.showmsg);
                 }
                 html("</div>");
         } else if ((commit = get_revision(&rev)) != NULL) {
                 html("<tr class='nohover'><td colspan='3'>");
                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
                 html("</td></tr>\n");
         }
 }