1 files changed, 43 insertions, 0 deletions

diff --git a/shared.c b/shared.c
index 19d2df0..f8a17b6 100644
--- a/shared.c
+++ b/shared.c
@@ -102,96 +102,139 @@ void cgit_global_config_cb(const char *name, const char *value)
                 cgit_logo_link = xstrdup(value);
         else if (!strcmp(name, "module-link"))
                 cgit_module_link = xstrdup(value);
         else if (!strcmp(name, "virtual-root"))
                 cgit_virtual_root = xstrdup(value);
         else if (!strcmp(name, "nocache"))
                 cgit_nocache = atoi(value);
         else if (!strcmp(name, "snapshots"))
                 cgit_snapshots = atoi(value);
         else if (!strcmp(name, "cache-root"))
                 cgit_cache_root = xstrdup(value);
         else if (!strcmp(name, "cache-root-ttl"))
                 cgit_cache_root_ttl = atoi(value);
         else if (!strcmp(name, "cache-repo-ttl"))
                 cgit_cache_repo_ttl = atoi(value);
         else if (!strcmp(name, "cache-static-ttl"))
                 cgit_cache_static_ttl = atoi(value);
         else if (!strcmp(name, "cache-dynamic-ttl"))
                 cgit_cache_dynamic_ttl = atoi(value);
         else if (!strcmp(name, "max-message-length"))
                 cgit_max_msg_len = atoi(value);
         else if (!strcmp(name, "repo.url"))
                 cgit_repo = add_repo(value);
         else if (!strcmp(name, "repo.name"))
                 cgit_repo->name = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.path"))
                 cgit_repo->path = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.desc"))
                 cgit_repo->desc = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.owner"))
                 cgit_repo->owner = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.snapshots"))
                 cgit_repo->snapshots = atoi(value);
         else if (cgit_repo && !strcmp(name, "repo.module-link"))
                 cgit_repo->module_link= xstrdup(value);
 }
 
 void cgit_repo_config_cb(const char *name, const char *value)
 {
         if (!strcmp(name, "name"))
                 cgit_repo_name = xstrdup(value);
         else if (!strcmp(name, "desc"))
                 cgit_repo_desc = xstrdup(value);
         else if (!strcmp(name, "owner"))
                 cgit_repo_owner = xstrdup(value);
 }
 
 void cgit_querystring_cb(const char *name, const char *value)
 {
         if (!strcmp(name,"r")) {
                 cgit_query_repo = xstrdup(value);
         } else if (!strcmp(name, "p")) {
                 cgit_query_page = xstrdup(value);
         } else if (!strcmp(name, "q")) {
                 cgit_query_search = xstrdup(value);
         } else if (!strcmp(name, "h")) {
                 cgit_query_head = xstrdup(value);
                 cgit_query_has_symref = 1;
         } else if (!strcmp(name, "id")) {
                 cgit_query_sha1 = xstrdup(value);
                 cgit_query_has_sha1 = 1;
         } else if (!strcmp(name, "id2")) {
                 cgit_query_sha2 = xstrdup(value);
                 cgit_query_has_sha1 = 1;
         } else if (!strcmp(name, "ofs")) {
                 cgit_query_ofs = atoi(value);
         } else if (!strcmp(name, "path")) {
                 cgit_query_path = xstrdup(value);
         } else if (!strcmp(name, "name")) {
                 cgit_query_name = xstrdup(value);
         }
 }
 
 void *cgit_free_commitinfo(struct commitinfo *info)
 {
         free(info->author);
         free(info->author_email);
         free(info->committer);
         free(info->committer_email);
         free(info->subject);
         free(info);
         return NULL;
 }
 
 int hextoint(char c)
 {
         if (c >= 'a' && c <= 'f')
                 return 10 + c - 'a';
         else if (c >= 'A' && c <= 'F')
                 return 10 + c - 'A';
         else if (c >= '0' && c <= '9')
                 return c - '0';
         else
                 return -1;
 }
 
+void cgit_diff_tree_cb(struct diff_queue_struct *q,
+                       struct diff_options *options, void *data)
+{
+        int i;
+
+        for (i = 0; i < q->nr; i++) {
+                if (q->queue[i]->status == 'U')
+                        continue;
+                ((filepair_fn)data)(q->queue[i]);
+        }
+}
+
+void cgit_diff_tree(const unsigned char *old_sha1,
+                    const unsigned char *new_sha1,
+                    filepair_fn fn)
+{
+        struct diff_options opt;
+        int ret;
+
+        diff_setup(&opt);
+        opt.output_format = DIFF_FORMAT_CALLBACK;
+        opt.detect_rename = 1;
+        opt.recursive = 1;
+        opt.format_callback = cgit_diff_tree_cb;
+        opt.format_callback_data = fn;
+        diff_setup_done(&opt);
+
+        if (old_sha1)
+                ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
+        else
+                ret = diff_root_tree_sha1(new_sha1, "", &opt);
+        diffcore_std(&opt);
+        diff_flush(&opt);
+}
+
+void cgit_diff_commit(struct commit *commit, filepair_fn fn)
+{
+        unsigned char *old_sha1 = NULL;
+
+        if (commit->parents)
+                old_sha1 = commit->parents->item->object.sha1;
+        cgit_diff_tree(old_sha1, commit->object.sha1, fn);
+}