diff options
Diffstat (limited to 'builtin/cat-file.c')
| -rw-r--r-- | builtin/cat-file.c | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 07bd984084..0eca2d7bd0 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -11,6 +11,7 @@ #include "parse-options.h" #include "diff.h" #include "userdiff.h" +#include "streaming.h" #define BATCH 1 #define BATCH_CHECK 2 @@ -90,7 +91,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) unsigned long size; struct object_context obj_context; - if (get_sha1_with_context(obj_name, sha1, &obj_context)) + if (get_sha1_with_context(obj_name, 0, sha1, &obj_context)) die("Not a valid object name %s", obj_name); buf = NULL; @@ -127,6 +128,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) return cmd_ls_tree(2, ls_args, NULL); } + if (type == OBJ_BLOB) + return stream_blob_to_fd(1, sha1, NULL, 0); buf = read_sha1_file(sha1, &type, &size); if (!buf) die("Cannot read object %s", obj_name); @@ -143,12 +146,34 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) die("git cat-file --textconv %s: <object> must be <sha1:path>", obj_name); - if (!textconv_object(obj_context.path, obj_context.mode, sha1, &buf, &size)) + if (!textconv_object(obj_context.path, obj_context.mode, sha1, 1, &buf, &size)) die("git cat-file --textconv: unable to run textconv on %s", obj_name); break; case 0: + 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)) + die("%s not a valid tag", sha1_to_hex(sha1)); + free(buffer); + } else + hashcpy(blob_sha1, sha1); + + if (sha1_object_info(blob_sha1, NULL) == OBJ_BLOB) + return stream_blob_to_fd(1, blob_sha1, NULL, 0); + /* + * we attempted to dereference a tag to a blob + * and failed; there may be new dereference + * mechanisms this code is not aware of. + * fall-back to the usual case. + */ + } buf = read_object_with_reference(sha1, exp_type, &size, NULL); break; @@ -226,14 +251,8 @@ static const char * const cat_file_usage[] = { static int git_cat_file_config(const char *var, const char *value, void *cb) { - switch (userdiff_config(var, value)) { - case 0: - break; - case -1: + if (userdiff_config(var, value) < 0) return -1; - default: - return 0; - } return git_default_config(var, value, cb); } |