add: error appropriately on repository with no commits

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 8d97c84725cd0f7f5347e8ca808072bd227d4d1c..0f092382e175cf7ebe43d2f53ef1c5c79c338568 100644 (file)
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -3,6 +3,7 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"
@@ -50,6 +51,13 @@ static int filter_object(const char *path, unsigned mode,
        return 0;
 }
 
+static int stream_blob(const struct object_id *oid)
+{
+       if (stream_blob_to_fd(1, oid, NULL, 0))
+               die("unable to stream %s to stdout", oid_to_hex(oid));
+       return 0;
+}
+
 static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
                        int unknown_type)
 {
@@ -66,7 +74,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
        if (unknown_type)
                flags |= OBJECT_INFO_ALLOW_UNKNOWN_TYPE;
 
-       if (get_oid_with_context(obj_name, GET_OID_RECORD_PATH,
+       if (get_oid_with_context(the_repository, obj_name,
+                                GET_OID_RECORD_PATH,
                                 &oid, &obj_context))
                die("Not a valid object name %s", obj_name);
 
@@ -92,7 +101,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
                oi.sizep = &size;
                if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0)
                        die("git cat-file: could not get object info");
-               printf("%lu\n", size);
+               printf("%"PRIuMAX"\n", (uintmax_t)size);
                return 0;
 
        case 'e':
@@ -132,7 +141,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
                }
 
                if (type == OBJ_BLOB)
-                       return stream_blob_to_fd(1, &oid, NULL, 0);
+                       return stream_blob(&oid);
                buf = read_object_file(&oid, &type, &size);
                if (!buf)
                        die("Cannot read object %s", obj_name);
@@ -155,7 +164,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
                                oidcpy(&blob_oid, &oid);
 
                        if (oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB)
-                               return stream_blob_to_fd(1, &blob_oid, NULL, 0);
+                               return stream_blob(&blob_oid);
                        /*
                         * we attempted to dereference a tag to a blob
                         * and failed; there may be new dereference
@@ -202,14 +211,14 @@ struct expand_data {
 
        /*
         * After a mark_query run, this object_info is set up to be
-        * passed to sha1_object_info_extended. It will point to the data
+        * passed to oid_object_info_extended. It will point to the data
         * elements above, so you can retrieve the response from there.
         */
        struct object_info info;
 
        /*
         * This flag will be true if the requested batch format and options
-        * don't require us to call sha1_object_info, which can then be
+        * don't require us to call oid_object_info, which can then be
         * optimized out.
         */
        unsigned skip_object_info : 1;
@@ -238,7 +247,7 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len,
                if (data->mark_query)
                        data->info.sizep = &data->size;
                else
-                       strbuf_addf(sb, "%lu", data->size);
+                       strbuf_addf(sb, "%"PRIuMAX , (uintmax_t)data->size);
        } else if (is_atom("objectsize:disk", atom, len)) {
                if (data->mark_query)
                        data->info.disk_sizep = &data->disk_size;
@@ -319,8 +328,9 @@ static void print_object_or_die(struct batch_options *opt, struct expand_data *d
                                BUG("invalid cmdmode: %c", opt->cmdmode);
                        batch_write(opt, contents, size);
                        free(contents);
-               } else if (stream_blob_to_fd(1, oid, NULL, 0) < 0)
-                       die("unable to stream %s to stdout", oid_to_hex(oid));
+               } else {
+                       stream_blob(oid);
+               }
        }
        else {
                enum object_type type;
@@ -372,14 +382,18 @@ static void batch_one_object(const char *obj_name,
 {
        struct object_context ctx;
        int flags = opt->follow_symlinks ? GET_OID_FOLLOW_SYMLINKS : 0;
-       enum follow_symlinks_result result;
+       enum get_oid_result result;
 
-       result = get_oid_with_context(obj_name, flags, &data->oid, &ctx);
+       result = get_oid_with_context(the_repository, obj_name,
+                                     flags, &data->oid, &ctx);
        if (result != FOUND) {
                switch (result) {
                case MISSING_OBJECT:
                        printf("%s missing\n", obj_name);
                        break;
+               case SHORT_NAME_AMBIGUOUS:
+                       printf("%s ambiguous\n", obj_name);
+                       break;
                case DANGLING_SYMLINK:
                        printf("dangling %"PRIuMAX"\n%s\n",
                               (uintmax_t)strlen(obj_name), obj_name);
@@ -482,7 +496,7 @@ static int batch_objects(struct batch_options *opt)
 
        /*
         * Expand once with our special mark_query flag, which will prime the
-        * object_info to be handed to sha1_object_info_extended for each
+        * object_info to be handed to oid_object_info_extended for each
         * object.
         */
        memset(&data, 0, sizeof(data));
@@ -595,8 +609,10 @@ static int batch_option_callback(const struct option *opt,
 {
        struct batch_options *bo = opt->value;
 
+       BUG_ON_OPT_NEG(unset);
+
        if (bo->enabled) {
-               return 1;
+               return error(_("only one batch option may be specified"));
        }
 
        bo->enabled = 1;
@@ -631,10 +647,12 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
                OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")),
                { OPTION_CALLBACK, 0, "batch", &batch, "format",
                        N_("show info and content of objects fed from the standard input"),
-                       PARSE_OPT_OPTARG, batch_option_callback },
+                       PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
+                       batch_option_callback },
                { OPTION_CALLBACK, 0, "batch-check", &batch, "format",
                        N_("show info about objects fed from the standard input"),
-                       PARSE_OPT_OPTARG, batch_option_callback },
+                       PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
+                       batch_option_callback },
                OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks,
                         N_("follow in-tree symlinks (used with --batch or --batch-check)")),
                OPT_BOOL(0, "batch-all-objects", &batch.all_objects,