+int get_verbosely = 0;
+static unsigned char current_commit_sha1[20];
+
+static const char commitS[] = "commit";
+static const char treeS[] = "tree";
+static const char blobS[] = "blob";
+
+void pull_say(const char *fmt, const char *hex) {
+ if (get_verbosely)
+ fprintf(stderr, fmt, hex);
+}
+
+static void report_missing(const char *what, const unsigned char *missing)
+{
+ char missing_hex[41];
+
+ strcpy(missing_hex, sha1_to_hex(missing));;
+ fprintf(stderr,
+ "Cannot obtain needed %s %s\nwhile processing commit %s.\n",
+ what, missing_hex, sha1_to_hex(current_commit_sha1));
+}
+
+static int make_sure_we_have_it(const char *what, unsigned char *sha1)
+{
+ int status = 0;
+
+ if (!has_sha1_file(sha1)) {
+ status = fetch(sha1);
+ if (status && what)
+ report_missing(what, sha1);
+ }
+ else if (get_delta < 2)
+ return 0;
+
+ if (get_delta) {
+ unsigned char delta_sha1[20];
+ status = sha1_delta_base(sha1, delta_sha1);
+ if (0 < status)
+ status = make_sure_we_have_it(what, delta_sha1);
+ }
+ return status;
+}
+
+static int process_unknown(unsigned char *sha1);