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authorJohan Herland <johan@herland.net>2010-11-15 18:39:50 +0100
committerLars Hjemli <hjemli@gmail.com>2010-11-16 08:18:36 +0100
commit9a8d39c668b98464bac97d4e5442966de63f97b2 (patch)
treeee1a7766d6d9365ae45f694939c20cab811abd84
parent5a36c2a291a00b59b8ec2f112453e117797c2fe5 (diff)
downloadcgit-9a8d39c668b98464bac97d4e5442966de63f97b2.tar.gz
cgit-9a8d39c668b98464bac97d4e5442966de63f97b2.tar.bz2
ui-log: Implement support for commit graphs
Teach CGit to print an ASCII art commit graph to the left of the commit message, similar to 'git log --graph'. The graph adds extra lines (table rows) to the log when needed to add/remove/shuffle edges in the graph. When 'showmsg' is enabled, the graph is automatically padded to account for the extra lines added by the commit message/notes. This feature is controlled by a new config variable: "enable-commit-graph" (disabled by default), and individual repos can control it by setting "repo.enable-commit-graph". Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Lars Hjemli <hjemli@gmail.com>
-rw-r--r--cgit.c6
-rw-r--r--cgit.css7
-rw-r--r--cgit.h3
-rw-r--r--cgitrc.5.txt15
-rw-r--r--shared.c1
-rw-r--r--ui-log.c103
6 files changed, 112 insertions, 23 deletions
diff --git a/cgit.c b/cgit.c
index 412fbf0..53ab68d 100644
--- a/cgit.c
+++ b/cgit.c
@@ -57,6 +57,8 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
repo->defbranch = xstrdup(value);
else if (!strcmp(name, "snapshots"))
repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
+ else if (!strcmp(name, "enable-commit-graph"))
+ repo->enable_commit_graph = ctx.cfg.enable_commit_graph * atoi(value);
else if (!strcmp(name, "enable-log-filecount"))
repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
else if (!strcmp(name, "enable-log-linecount"))
@@ -141,6 +143,8 @@ void config_cb(const char *name, const char *value)
ctx.cfg.enable_gitweb_owner = atoi(value);
else if (!strcmp(name, "enable-index-links"))
ctx.cfg.enable_index_links = atoi(value);
+ else if (!strcmp(name, "enable-commit-graph"))
+ ctx.cfg.enable_commit_graph = atoi(value);
else if (!strcmp(name, "enable-log-filecount"))
ctx.cfg.enable_log_filecount = atoi(value);
else if (!strcmp(name, "enable-log-linecount"))
@@ -540,6 +544,8 @@ void print_repo(FILE *f, struct cgit_repo *repo)
fprintf(f, "repo.section=%s\n", repo->section);
if (repo->clone_url)
fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
+ fprintf(f, "repo.enable-commit-graph=%d\n",
+ repo->enable_commit_graph);
fprintf(f, "repo.enable-log-filecount=%d\n",
repo->enable_log_filecount);
fprintf(f, "repo.enable-log-linecount=%d\n",
diff --git a/cgit.css b/cgit.css
index 7a5f423..7600e84 100644
--- a/cgit.css
+++ b/cgit.css
@@ -153,6 +153,11 @@ table.list td {
padding: 0.1em 0.5em 0.1em 0.5em;
}
+table.list td.commitgraph {
+ font-family: monospace;
+ white-space: pre;
+}
+
table.list td.logsubject {
font-family: monospace;
font-weight: bold;
@@ -731,4 +736,4 @@ table.ssdiff td.space {
table.ssdiff td.space div {
min-height: 3em;
-} \ No newline at end of file
+}
diff --git a/cgit.h b/cgit.h
index f5f68ac..bed770b 100644
--- a/cgit.h
+++ b/cgit.h
@@ -20,6 +20,7 @@
#include <xdiff/xdiff.h>
#include <utf8.h>
#include <notes.h>
+#include <graph.h>
/*
@@ -71,6 +72,7 @@ struct cgit_repo {
char *section;
char *clone_url;
int snapshots;
+ int enable_commit_graph;
int enable_log_filecount;
int enable_log_linecount;
int enable_remote_branches;
@@ -188,6 +190,7 @@ struct cgit_config {
int enable_filter_overrides;
int enable_gitweb_owner;
int enable_index_links;
+ int enable_commit_graph;
int enable_log_filecount;
int enable_log_linecount;
int enable_remote_branches;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 75b6584..b45c46b 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -90,7 +90,12 @@ embedded::
Flag which, when set to "1", will make cgit generate a html fragment
suitable for embedding in other html pages. Default value: none. See
also: "noheader".
-
+
+enable-commit-graph::
+ Flag which, when set to "1", will make cgit print an ASCII-art commit
+ history graph to the left of the commit messages in the repository
+ log page. Default value: "0".
+
enable-filter-overrides::
Flag which, when set to "1", allows all filter settings to be
overridden in repository-specific cgitrc files. Default value: none.
@@ -354,6 +359,10 @@ repo.defbranch::
repo.desc::
The value to show as repository description. Default value: none.
+repo.enable-commit-graph::
+ A flag which can be used to disable the global setting
+ `enable-commit-graph'. Default value: none.
+
repo.enable-log-filecount::
A flag which can be used to disable the global setting
`enable-log-filecount'. Default value: none.
@@ -441,6 +450,10 @@ css=/css/cgit.css
enable-index-links=1
+# Enable ASCII art commit history graph on the log pages
+enable-commit-graph=1
+
+
# Show number of affected files per commit on the log pages
enable-log-filecount=1
diff --git a/shared.c b/shared.c
index 765cd27..7ec2e19 100644
--- a/shared.c
+++ b/shared.c
@@ -56,6 +56,7 @@ struct cgit_repo *cgit_add_repo(const char *url)
ret->section = ctx.cfg.section;
ret->defbranch = "master";
ret->snapshots = ctx.cfg.snapshots;
+ ret->enable_commit_graph = ctx.cfg.enable_commit_graph;
ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
diff --git a/ui-log.c b/ui-log.c
index 6d7fcae..0d86fd5 100644
--- 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 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>",
@@ -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();
- 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);
@@ -112,32 +140,59 @@ void print_commit(struct commit *commit)
}
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;
- 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_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);
}
+ strbuf_release(&graphbuf);
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 = "--";
@@ -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'>");
- 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,
@@ -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++) {
- print_commit(commit);
+ print_commit(commit, &rev);
free(commit->buffer);
commit->buffer = NULL;
free_commit_list(commit->parents);