Add cache.h

The functions found in cache.c are only used by cgit.c, so there's no
point in rebuilding all object files when the cache interface is changed.


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

cache.c

@@ -7,6 +7,7 @@
  */
 
 #include "cgit.h"
+#include "cache.h"
 
 const int NOLOCK = -1;
 

cache.h

@@ -0,0 +1,23 @@
+/*
+ * Since git has it's own cache.h which we include,
+ * lets test on CGIT_CACHE_H to avoid confusion
+ */
+
+#ifndef CGIT_CACHE_H
+#define CGIT_CACHE_H
+
+struct cacheitem {
+	char *name;
+	struct stat st;
+	int ttl;
+	int fd;
+};
+
+extern char *cache_safe_filename(const char *unsafe);
+extern int cache_lock(struct cacheitem *item);
+extern int cache_unlock(struct cacheitem *item);
+extern int cache_cancel_lock(struct cacheitem *item);
+extern int cache_exist(struct cacheitem *item);
+extern int cache_expired(struct cacheitem *item);
+
+#endif /* CGIT_CACHE_H */

cgit.c

@@ -7,6 +7,7 @@
  */
 
 #include "cgit.h"
+#include "cache.h"
 #include "cmd.h"
 #include "ui-shared.h"
 

cgit.h

@@ -46,13 +46,6 @@ typedef void (*configfn)(const char *name, const char *value);
 typedef void (*filepair_fn)(struct diff_filepair *pair);
 typedef void (*linediff_fn)(char *line, int len);
 
-struct cacheitem {
-	char *name;
-	struct stat st;
-	int ttl;
-	int fd;
-};
-
 struct cgit_repo {
 	char *url;
 	char *name;
@@ -227,13 +220,6 @@ extern struct commitinfo *cgit_parse_commit(struct commit *commit);
 extern struct taginfo *cgit_parse_tag(struct tag *tag);
 extern void cgit_parse_url(const char *url);
 
-extern char *cache_safe_filename(const char *unsafe);
-extern int cache_lock(struct cacheitem *item);
-extern int cache_unlock(struct cacheitem *item);
-extern int cache_cancel_lock(struct cacheitem *item);
-extern int cache_exist(struct cacheitem *item);
-extern int cache_expired(struct cacheitem *item);
-
 extern const char *cgit_repobasename(const char *reponame);
 
 extern int cgit_parse_snapshots_mask(const char *str);