Add cgit_commit_link() + support for id=sha1 to commit view

This adds a function to generate links to the commit page and extends said
page to use id from querystring as primary revision specified (fallback to
h).

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

7 files changed, 31 insertions, 18 deletions

diff --git a/cgit.c b/cgit.c
index 1c213c7..f5135d9 100644
--- a/cgit.c
+++ b/cgit.c
@@ -100,7 +100,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
                 cgit_print_tree(cgit_query_sha1, cgit_query_path);
                 break;
         case CMD_COMMIT:
-                cgit_print_commit(cgit_query_head);
+                cgit_print_commit(cgit_query_sha1);
                 break;
         case CMD_DIFF:
                 cgit_print_diff(cgit_query_head, cgit_query_sha1, cgit_query_sha2,
diff --git a/cgit.h b/cgit.h
index b2f6361..c276a24 100644
--- a/cgit.h
+++ b/cgit.h
@@ -205,6 +205,8 @@ extern void cgit_tree_link(char *name, char *title, char *class, char *head,
                            char *rev, char *path);
 extern void cgit_log_link(char *name, char *title, char *class, char *head,
                           char *rev, char *path);
+extern void cgit_commit_link(char *name, char *title, char *class, char *head,
+                             char *rev);
 
 extern void cgit_print_error(char *msg);
 extern void cgit_print_date(time_t secs, char *format);
diff --git a/ui-commit.c b/ui-commit.c
index 885f870..8864fc6 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -156,6 +156,9 @@ void cgit_print_commit(const char *hex)
         char *tmp;
         int i;
 
+        if (!hex)
+                hex = cgit_query_head;
+
         if (get_sha1(hex, sha1)) {
                 cgit_print_error(fmt("Bad object id: %s", hex));
                 return;
diff --git a/ui-log.c b/ui-log.c
index bb17e1d..8d774b0 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -31,11 +31,8 @@ void print_commit(struct commit *commit)
         html("<tr><td>");
         cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
         html("</td><td>");
-        char *qry = fmt("h=%s", sha1_to_hex(commit->object.sha1));
-        char *url = cgit_pageurl(cgit_query_repo, "commit", qry);
-        html_link_open(url, NULL, NULL);
-        html_ntxt(cgit_max_msg_len, info->subject);
-        html_link_close();
+        cgit_commit_link(info->subject, NULL, NULL, cgit_query_head,
+                         sha1_to_hex(commit->object.sha1));
         if (cgit_repo->enable_log_filecount) {
                 files = 0;
                 lines = 0;
diff --git a/ui-shared.c b/ui-shared.c
index 64ee79c..71c899a 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -136,8 +136,8 @@ static char *repolink(char *title, char *class, char *page, char *head,
         return fmt("%s", delim);
 }
 
-static char *reporevlink(char *page, char *name, char *title, char *class,
-                         char *head, char *rev, char *path)
+static void reporevlink(char *page, char *name, char *title, char *class,
+                        char *head, char *rev, char *path)
 {
         char *delim;
 
@@ -164,6 +164,18 @@ void cgit_log_link(char *name, char *title, char *class, char *head,
         reporevlink("log", name, title, class, head, rev, path);
 }
 
+void cgit_commit_link(char *name, char *title, char *class, char *head,
+                      char *rev)
+{
+        if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) {
+                name[cgit_max_msg_len] = '\0';
+                name[cgit_max_msg_len - 1] = '.';
+                name[cgit_max_msg_len - 2] = '.';
+                name[cgit_max_msg_len - 3] = '.';
+        }
+        reporevlink("commit", name, title, class, head, rev, NULL);
+}
+
 void cgit_print_date(time_t secs, char *format)
 {
         char buf[64];
diff --git a/ui-summary.c b/ui-summary.c
index 29b76e3..03dd078 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -15,8 +15,10 @@ static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
 {
         struct commit *commit;
         struct commitinfo *info;
-        char buf[256], *url;
+        char buf[256];
+        char *ref;
 
+        ref = xstrdup(refname);
         strncpy(buf, refname, sizeof(buf));
         commit = lookup_commit(sha1);
         // object is not really parsed at this point, because of some fallout
@@ -25,17 +27,13 @@ static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
         if (commit && !parse_commit(commit)){
                 info = cgit_parse_commit(commit);
                 html("<tr><td>");
-                cgit_log_link(refname, NULL, NULL, refname, NULL, NULL);
+                cgit_log_link(ref, NULL, NULL, ref, NULL, NULL);
                 html("</td><td>");
                 cgit_print_age(commit->date, -1, NULL);
                 html("</td><td>");
                 html_txt(info->author);
                 html("</td><td>");
-                url = cgit_pageurl(cgit_query_repo, "commit",
-                                   fmt("h=%s", sha1_to_hex(sha1)));
-                html_link_open(url, NULL, NULL);
-                html_ntxt(cgit_max_msg_len, info->subject);
-                html_link_close();
+                cgit_commit_link(info->subject, NULL, NULL, ref, NULL);
                 html("</td></tr>\n");
                 cgit_free_commitinfo(info);
         } else {
@@ -45,6 +43,7 @@ static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
                 htmlf("*** bad ref %s ***", sha1_to_hex(sha1));
                 html("</td></tr>\n");
         }
+        free(ref);
         return 0;
 }
 
@@ -54,8 +53,9 @@ static void cgit_print_object_ref(struct object *obj)
         char *page, *arg, *url;
 
         if (obj->type == OBJ_COMMIT) {
-                page = "commit";
-                arg = "h";
+                cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
+                                 cgit_query_head, sha1_to_hex(obj->sha1));
+                return;
         } else if (obj->type == OBJ_TREE) {
                 page = "tree";
                 arg = "id";
diff --git a/ui-tree.c b/ui-tree.c
index e16b638..1037c82 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -58,7 +58,6 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
         char *fullpath;
         enum object_type type;
         unsigned long size = 0;
-        char *url, *qry;
 
         name = xstrdup(pathname);
         fullpath = fmt("%s%s%s", cgit_query_path ? cgit_query_path : "",