introduce cgit_repobasename

 that shortens reponame stripping any directories and .git suffixes, that is
 turning 'dir/repo.git/' or 'dir/repo/.git/' or alikes into mere 'repo'.

Signed-off-by: Michael Krelin <hacker@klever.net>

2 files changed, 26 insertions, 0 deletions

diff --git a/cgit.h b/cgit.h
index aabf725..1dbf901 100644
--- a/cgit.h
+++ b/cgit.h
@@ -206,6 +206,8 @@ extern char *cgit_fileurl(const char *reponame, const char *pagename,
 extern char *cgit_pageurl(const char *reponame, const char *pagename,
                           const char *query);
 
+extern const char *cgit_repobasename(const char *reponame);
+
 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,
diff --git a/ui-shared.c b/ui-shared.c
index 1c1415e..3e378a4 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -81,6 +81,30 @@ char *cgit_pageurl(const char *reponame, const char *pagename,
         return cgit_fileurl(reponame,pagename,0,query);
 }
 
+const char *cgit_repobasename(const char *reponame)
+{
+        /* I assume we don't need to store more than one repo basename */
+        static char rvbuf[1024];
+        int p;
+        const char *rv;
+        strncpy(rvbuf,reponame,sizeof(rvbuf));
+        if(rvbuf[sizeof(rvbuf)-1])
+                die("cgit_repobasename: truncated repository name '%s'", reponame);
+        p = strlen(rvbuf)-1;
+        /* strip trailing slashes */
+        while(p && rvbuf[p]=='/') rvbuf[p--]=0;
+        /* strip trailing .git */
+        if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
+                p -= 3; rvbuf[p--] = 0;
+        }
+        /* strip more trailing slashes if any */
+        while( p && rvbuf[p]=='/') rvbuf[p--]=0;
+        /* find last slash in the remaining string */
+        rv = strrchr(rvbuf,'/');
+        if(rv)
+                return ++rv;
+        return rvbuf;
+}
 
 char *cgit_currurl()
 {