Optionally generate verbose parent links

The new option 'enable-subject-links' must be used to enable the verbose
parent-links in commit view.

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

5 files changed, 23 insertions, 4 deletions

diff --git a/cgit.c b/cgit.c
index 9305d0a..6ccf4aa 100644
--- a/cgit.c
+++ b/cgit.c
@@ -63,4 +63,6 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
 	else if (!strcmp(name, "enable-remote-branches"))
 		repo->enable_remote_branches = atoi(value);
+	else if (!strcmp(name, "enable-subject-links"))
+		repo->enable_subject_links = atoi(value);
 	else if (!strcmp(name, "max-stats"))
 		repo->max_stats = cgit_find_stats_period(value, NULL);
@@ -142,4 +144,6 @@ void config_cb(const char *name, const char *value)
 	else if (!strcmp(name, "enable-remote-branches"))
 		ctx.cfg.enable_remote_branches = atoi(value);
+	else if (!strcmp(name, "enable-subject-links"))
+		ctx.cfg.enable_subject_links = atoi(value);
 	else if (!strcmp(name, "enable-tree-linenumbers"))
 		ctx.cfg.enable_tree_linenumbers = atoi(value);
diff --git a/cgit.h b/cgit.h
index cd4af72..9b1e3f8 100644
--- a/cgit.h
+++ b/cgit.h
@@ -74,4 +74,5 @@ struct cgit_repo {
 	int enable_log_linecount;
 	int enable_remote_branches;
+	int enable_subject_links;
 	int max_stats;
 	time_t mtime;
@@ -182,4 +183,5 @@ struct cgit_config {
 	int enable_log_linecount;
 	int enable_remote_branches;
+	int enable_subject_links;
 	int enable_tree_linenumbers;
 	int local_time;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index d74d9e7..fcd4308 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -116,4 +116,10 @@ enable-remote-branches::
 	"repo.enable-remote-branches".
 
+enable-subject-links::
+	Flag which, when set to "1", will make cgit use the subject of the
+	parent commit as link text when generating links to parent commits
+	in commit view. Default value: "0". See also:
+	"repo.enable-subject-links".
+
 enable-tree-linenumbers::
 	Flag which, when set to "1", will make cgit generate linenumber links
@@ -322,4 +328,8 @@ repo.enable-remote-branches::
 	in the summary and refs views. Default value: <enable-remote-branches>.
 
+repo.enable-subject-links::
+	A flag which can be used to override the global setting
+	`enable-subject-links'. Default value: none.
+
 repo.max-stats::
 	Override the default maximum statistics period. Valid values are equal
diff --git a/shared.c b/shared.c
index 5f46793..83ded44 100644
--- a/shared.c
+++ b/shared.c
@@ -61,4 +61,5 @@ struct cgit_repo *cgit_add_repo(const char *url)
 	ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
 	ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
+	ret->enable_subject_links = ctx.cfg.enable_subject_links;
 	ret->max_stats = ctx.cfg.max_stats;
 	ret->module_link = ctx.cfg.module_link;
diff --git a/ui-commit.c b/ui-commit.c
index 4d4970f..41313b9 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -19,5 +19,5 @@ void cgit_print_commit(char *hex)
 	struct commit_list *p;
 	unsigned char sha1[20];
-	char *tmp;
+	char *tmp, *tmp2;
 	int parents = 0;
 
@@ -83,8 +83,10 @@ void cgit_print_commit(char *hex)
 		html("<tr><th>parent</th>"
 		     "<td colspan='2' class='sha1'>");
+		tmp = tmp2 = sha1_to_hex(p->item->object.sha1);
+		if (ctx.repo->enable_subject_links) {
 		parent_info = cgit_parse_commit(parent);
-		tmp = sha1_to_hex(p->item->object.sha1);
-		cgit_commit_link(parent_info->subject, NULL, NULL,
-				 ctx.qry.head, tmp, 0);
+			tmp2 = parent_info->subject;
+		}
+		cgit_commit_link(tmp2, NULL, NULL, ctx.qry.head, tmp, 0);
 		html(" (");
 		cgit_diff_link("diff", NULL, NULL, ctx.qry.head, hex,