ui-shared: make a char* parameter const

All cgit_xxx_link functions take const char* for the 'name' parameter,
except for cgit_commit_link, which takes a char* and subsequently
modifies the contents.  Avoiding the content changes, and making it
const char* will avoid the need to make copies of const char* strings
being passed to cgit_commit_link.

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: John Keeping <john@keeping.me.uk>

2 files changed, 9 insertions, 12 deletions

diff --git a/ui-shared.c b/ui-shared.c
index 2547e43..315dedb 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -347,18 +347,11 @@ void cgit_log_link(const char *name, const char *title, const char *class,
         html("</a>");
 }
 
-void cgit_commit_link(char *name, const char *title, const char *class,
+void cgit_commit_link(const char *name, const char *title, const char *class,
                       const char *head, const char *rev, const char *path)
 {
         char *delim;
 
-        if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
-                name[ctx.cfg.max_msg_len] = '\0';
-                name[ctx.cfg.max_msg_len - 1] = '.';
-                name[ctx.cfg.max_msg_len - 2] = '.';
-                name[ctx.cfg.max_msg_len - 3] = '.';
-        }
-
         delim = repolink(title, class, "commit", head, path);
         if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
                 html(delim);
@@ -387,9 +380,13 @@ void cgit_commit_link(char *name, const char *title, const char *class,
                 html("follow=1");
         }
         html("'>");
-        if (name[0] != '\0')
-                html_txt(name);
-        else
+        if (name[0] != '\0') {
+                if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
+                        html_ntxt(name, ctx.cfg.max_msg_len - 3);
+                        html("...");
+                } else
+                        html_txt(name);
+        } else
                 html_txt("(no commit message)");
         html("</a>");
 }
diff --git a/ui-shared.h b/ui-shared.h
index 40f6207..2cd7ac9 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -30,7 +30,7 @@ extern void cgit_log_link(const char *name, const char *title,
                           const char *class, const char *head, const char *rev,
                           const char *path, int ofs, const char *grep,
                           const char *pattern, int showmsg, int follow);
-extern void cgit_commit_link(char *name, const char *title,
+extern void cgit_commit_link(const char *name, const char *title,
                              const char *class, const char *head,
                              const char *rev, const char *path);
 extern void cgit_patch_link(const char *name, const char *title,