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authorJunio C Hamano <gitster@pobox.com>2010-03-10 23:25:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-03-10 23:25:18 (GMT)
commit2e0e8b68e3ba8ea87f001c45c78f9b7ce549c61f (patch)
tree12363fe88e40f042c24583e829a696505fcb9b7c /builtin/hash-object.c
parente007240cb940811a6e075d35f5c3a93a44c54f5a (diff)
parent81b50f3ce40bfdd66e5d967bf82be001039a9a98 (diff)
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Merge branch 'lt/deepen-builtin-source'
* lt/deepen-builtin-source: Move 'builtin-*' into a 'builtin/' subdirectory Conflicts: Makefile
Diffstat (limited to 'builtin/hash-object.c')
-rw-r--r--builtin/hash-object.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/builtin/hash-object.c b/builtin/hash-object.c
new file mode 100644
index 0000000..080af1a
--- /dev/null
+++ b/builtin/hash-object.c
@@ -0,0 +1,134 @@
+/*
+ * GIT - The information manager from hell
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ * Copyright (C) Junio C Hamano, 2005
+ */
+#include "cache.h"
+#include "blob.h"
+#include "quote.h"
+#include "parse-options.h"
+#include "exec_cmd.h"
+
+static void hash_fd(int fd, const char *type, int write_object, const char *path)
+{
+ struct stat st;
+ unsigned char sha1[20];
+ if (fstat(fd, &st) < 0 ||
+ index_fd(sha1, fd, &st, write_object, type_from_string(type), path))
+ die(write_object
+ ? "Unable to add %s to database"
+ : "Unable to hash %s", path);
+ printf("%s\n", sha1_to_hex(sha1));
+ maybe_flush_or_die(stdout, "hash to stdout");
+}
+
+static void hash_object(const char *path, const char *type, int write_object,
+ const char *vpath)
+{
+ int fd;
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ die_errno("Cannot open '%s'", path);
+ hash_fd(fd, type, write_object, vpath);
+}
+
+static int no_filters;
+
+static void hash_stdin_paths(const char *type, int write_objects)
+{
+ struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT;
+
+ while (strbuf_getline(&buf, stdin, '\n') != EOF) {
+ if (buf.buf[0] == '"') {
+ strbuf_reset(&nbuf);
+ if (unquote_c_style(&nbuf, buf.buf, NULL))
+ die("line is badly quoted");
+ strbuf_swap(&buf, &nbuf);
+ }
+ hash_object(buf.buf, type, write_objects,
+ no_filters ? NULL : buf.buf);
+ }
+ strbuf_release(&buf);
+ strbuf_release(&nbuf);
+}
+
+static const char * const hash_object_usage[] = {
+ "git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>...",
+ "git hash-object --stdin-paths < <list-of-paths>",
+ NULL
+};
+
+static const char *type;
+static int write_object;
+static int hashstdin;
+static int stdin_paths;
+static const char *vpath;
+
+static const struct option hash_object_options[] = {
+ OPT_STRING('t', NULL, &type, "type", "object type"),
+ OPT_BOOLEAN('w', NULL, &write_object, "write the object into the object database"),
+ OPT_BOOLEAN( 0 , "stdin", &hashstdin, "read the object from stdin"),
+ OPT_BOOLEAN( 0 , "stdin-paths", &stdin_paths, "read file names from stdin"),
+ OPT_BOOLEAN( 0 , "no-filters", &no_filters, "store file as is without filters"),
+ OPT_STRING( 0 , "path", &vpath, "file", "process file as it were from this path"),
+ OPT_END()
+};
+
+int cmd_hash_object(int argc, const char **argv, const char *prefix)
+{
+ int i;
+ int prefix_length = -1;
+ const char *errstr = NULL;
+
+ type = blob_type;
+
+ argc = parse_options(argc, argv, NULL, hash_object_options,
+ hash_object_usage, 0);
+
+ if (write_object) {
+ prefix = setup_git_directory();
+ prefix_length = prefix ? strlen(prefix) : 0;
+ if (vpath && prefix)
+ vpath = prefix_filename(prefix, prefix_length, vpath);
+ }
+
+ git_config(git_default_config, NULL);
+
+ if (stdin_paths) {
+ if (hashstdin)
+ errstr = "Can't use --stdin-paths with --stdin";
+ else if (argc)
+ errstr = "Can't specify files with --stdin-paths";
+ else if (vpath)
+ errstr = "Can't use --stdin-paths with --path";
+ }
+ else {
+ if (hashstdin > 1)
+ errstr = "Multiple --stdin arguments are not supported";
+ if (vpath && no_filters)
+ errstr = "Can't use --path with --no-filters";
+ }
+
+ if (errstr) {
+ error("%s", errstr);
+ usage_with_options(hash_object_usage, hash_object_options);
+ }
+
+ if (hashstdin)
+ hash_fd(0, type, write_object, vpath);
+
+ for (i = 0 ; i < argc; i++) {
+ const char *arg = argv[i];
+
+ if (0 <= prefix_length)
+ arg = prefix_filename(prefix, prefix_length, arg);
+ hash_object(arg, type, write_object,
+ no_filters ? NULL : vpath ? vpath : arg);
+ }
+
+ if (stdin_paths)
+ hash_stdin_paths(type, write_object);
+
+ return 0;
+}