ui-log: Implement support for commit graphs

[ps-cgit] / ui-log.c

diff --git a/ui-log.c b/ui-log.c
index 6d7fcaefa49b81485a4f40ca056f48aa97d38af5..0d86fd54bcfc0ba2de0902a6d790eee9cf87efb2 100644 (file)
--- a/ui-log.c
+++ b/ui-log.c
@@ -77,11 +77,30 @@ void show_commit_decorations(struct commit *commit)
        }
 }
 
        }
 }
 

-void print_commit(struct commit *commit)
+void print_commit(struct commit *commit, struct rev_info *revs)

 {
        struct commitinfo *info;
        char *tmp;
        int cols = 2;
 {
        struct commitinfo *info;
        char *tmp;
        int cols = 2;

+       struct strbuf graphbuf = 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(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>",
 
        info = cgit_parse_commit(commit);
        htmlf("<tr%s><td>",


@@ -91,8 +110,17 @@ void print_commit(struct commit *commit)
        html_link_open(tmp, NULL, NULL);
        cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
        html_link_close();
        html_link_open(tmp, NULL, NULL);
        cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
        html_link_close();

-       htmlf("</td><td%s>",
-               ctx.qry.showmsg ? " class='logsubject'" : "");
+       html("</td>");
+
+       if (revs->graph) {
+               /* Print graph segment for current commit */
+               html("<td class='commitgraph'>");
+               html(graphbuf.buf);
+               html("</td>");
+               strbuf_setlen(&graphbuf, 0);
+       }
+
+       htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");

        cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
                         sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
        show_commit_decorations(commit);
        cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
                         sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
        show_commit_decorations(commit);


@@ -112,32 +140,59 @@ void print_commit(struct commit *commit)
        }
        html("</td></tr>\n");
 
        }
        html("</td></tr>\n");
 

-       if (ctx.qry.showmsg) { /* Print message + notes in a second table row */
-               /* Concatenate commit message and notes in msgbuf */
+       if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */

                struct strbuf msgbuf = STRBUF_INIT;
                struct strbuf msgbuf = STRBUF_INIT;

-               if (info->msg && *(info->msg)) {
-                       strbuf_addstr(&msgbuf, info->msg);
+               html("<tr class='nohover'><td/>"); /* Empty 'Age' column */
+
+               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_addch(&msgbuf, '\n');

+                       strbuf_ltrim(&msgbuf);

                }
                }

-               format_note(NULL, commit->object.sha1, &msgbuf, PAGE_ENCODING,
-                           NOTES_SHOW_HEADER | NOTES_INDENT);
-               strbuf_addch(&msgbuf, '\n');
-               strbuf_ltrim(&msgbuf);

 
 

-               if (ctx.repo->enable_log_filecount) {
-                       cols++;
-                       if (ctx.repo->enable_log_linecount)
-                               cols++;
+               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");

                }
 
                }
 

-               /* Create second table row containing msgbuf */
-               htmlf("<tr class='nohover'><td/><td colspan='%d' class='logmsg'>",
-                       cols);
+               /* 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);
        }
 
                html_txt(msgbuf.buf);
                html("</td></tr>\n");
                strbuf_release(&msgbuf);
        }
 

+       strbuf_release(&graphbuf);

        cgit_free_commitinfo(info);
 }
 
        cgit_free_commitinfo(info);
 }
 


@@ -216,6 +271,10 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
                        }
                }
        }
                        }
                }
        }

+       if (ctx.repo->enable_commit_graph) {
+               static const char *graph_arg = "--graph";
+               vector_push(&vec, &graph_arg, 0);
+       }

 
        if (path) {
                arg = "--";
 
        if (path) {
                arg = "--";


@@ -242,8 +301,10 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
        if (pager)
                html("<table class='list nowrap'>");
 
        if (pager)
                html("<table class='list nowrap'>");
 

-       html("<tr class='nohover'><th class='left'>Age</th>"
-             "<th class='left'>Commit message");
+       html("<tr class='nohover'><th class='left'>Age</th>");
+       if (ctx.repo->enable_commit_graph)
+               html("<th></th>");
+       html("<th class='left'>Commit message");

        if (pager) {
                html(" (");
                cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
        if (pager) {
                html(" (");
                cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,


@@ -274,7 +335,7 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
        }
 
        for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
        }
 
        for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {

-               print_commit(commit);
+               print_commit(commit, &rev);

                free(commit->buffer);
                commit->buffer = NULL;
                free_commit_list(commit->parents);
                free(commit->buffer);
                commit->buffer = NULL;
                free_commit_list(commit->parents);