Merge branch 'mh/reflog-expire' into mh/ref-trans-value-check
[gitweb.git] / builtin / cat-file.c
index d5a93e0e911ccbe4560a03ed78436bfb174e0f68..31b133b357f34e9bc0a63dec5ce2dbceba43e765 100644 (file)
@@ -4,12 +4,8 @@
  * Copyright (C) Linus Torvalds, 2005
  */
 #include "cache.h"
-#include "exec_cmd.h"
-#include "tag.h"
-#include "tree.h"
 #include "builtin.h"
 #include "parse-options.h"
-#include "diff.h"
 #include "userdiff.h"
 #include "streaming.h"
 
@@ -79,11 +75,10 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
                if (type_from_string(exp_type) == OBJ_BLOB) {
                        unsigned char blob_sha1[20];
                        if (sha1_object_info(sha1, NULL) == OBJ_TAG) {
-                               enum object_type type;
-                               unsigned long size;
                                char *buffer = read_sha1_file(sha1, &type, &size);
-                               if (memcmp(buffer, "object ", 7) ||
-                                   get_sha1_hex(buffer + 7, blob_sha1))
+                               const char *target;
+                               if (!skip_prefix(buffer, "object ", &target) ||
+                                   get_sha1_hex(target, blob_sha1))
                                        die("%s not a valid tag", sha1_to_hex(sha1));
                                free(buffer);
                        } else
@@ -269,6 +264,8 @@ static int batch_objects(struct batch_options *opt)
 {
        struct strbuf buf = STRBUF_INIT;
        struct expand_data data;
+       int save_warning;
+       int retval = 0;
 
        if (!opt->format)
                opt->format = "%(objectname) %(objecttype) %(objectsize)";
@@ -297,11 +294,10 @@ static int batch_objects(struct batch_options *opt)
         * warn) ends up dwarfing the actual cost of the object lookups
         * themselves. We can work around it by just turning off the warning.
         */
+       save_warning = warn_on_object_refname_ambiguity;
        warn_on_object_refname_ambiguity = 0;
 
        while (strbuf_getline(&buf, stdin, '\n') != EOF) {
-               int error;
-
                if (data.split_on_whitespace) {
                        /*
                         * Split at first whitespace, tying off the beginning
@@ -316,12 +312,14 @@ static int batch_objects(struct batch_options *opt)
                        data.rest = p;
                }
 
-               error = batch_one_object(buf.buf, opt, &data);
-               if (error)
-                       return error;
+               retval = batch_one_object(buf.buf, opt, &data);
+               if (retval)
+                       break;
        }
 
-       return 0;
+       strbuf_release(&buf);
+       warn_on_object_refname_ambiguity = save_warning;
+       return retval;
 }
 
 static const char * const cat_file_usage[] = {