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134 lines
3.5 KiB
134 lines
3.5 KiB
/* |
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* GIT - The information manager from hell |
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* |
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* Copyright (C) Linus Torvalds, 2005 |
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* Copyright (C) Junio C Hamano, 2005 |
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*/ |
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#include "cache.h" |
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#include "blob.h" |
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#include "quote.h" |
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#include "parse-options.h" |
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#include "exec_cmd.h" |
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static void hash_fd(int fd, const char *type, int write_object, const char *path) |
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{ |
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struct stat st; |
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unsigned char sha1[20]; |
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if (fstat(fd, &st) < 0 || |
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index_fd(sha1, fd, &st, write_object, type_from_string(type), path)) |
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die(write_object |
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? "Unable to add %s to database" |
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: "Unable to hash %s", path); |
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printf("%s\n", sha1_to_hex(sha1)); |
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maybe_flush_or_die(stdout, "hash to stdout"); |
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} |
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static void hash_object(const char *path, const char *type, int write_object, |
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const char *vpath) |
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{ |
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int fd; |
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fd = open(path, O_RDONLY); |
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if (fd < 0) |
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die_errno("Cannot open '%s'", path); |
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hash_fd(fd, type, write_object, vpath); |
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} |
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static void hash_stdin_paths(const char *type, int write_objects) |
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{ |
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struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; |
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while (strbuf_getline(&buf, stdin, '\n') != EOF) { |
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if (buf.buf[0] == '"') { |
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strbuf_reset(&nbuf); |
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if (unquote_c_style(&nbuf, buf.buf, NULL)) |
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die("line is badly quoted"); |
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strbuf_swap(&buf, &nbuf); |
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} |
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hash_object(buf.buf, type, write_objects, buf.buf); |
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} |
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strbuf_release(&buf); |
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strbuf_release(&nbuf); |
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} |
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static const char * const hash_object_usage[] = { |
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"git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>...", |
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"git hash-object --stdin-paths < <list-of-paths>", |
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NULL |
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}; |
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static const char *type; |
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static int write_object; |
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static int hashstdin; |
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static int stdin_paths; |
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static int no_filters; |
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static const char *vpath; |
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static const struct option hash_object_options[] = { |
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OPT_STRING('t', NULL, &type, "type", "object type"), |
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OPT_BOOLEAN('w', NULL, &write_object, "write the object into the object database"), |
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OPT_BOOLEAN( 0 , "stdin", &hashstdin, "read the object from stdin"), |
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OPT_BOOLEAN( 0 , "stdin-paths", &stdin_paths, "read file names from stdin"), |
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OPT_BOOLEAN( 0 , "no-filters", &no_filters, "store file as is without filters"), |
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OPT_STRING( 0 , "path", &vpath, "file", "process file as it were from this path"), |
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OPT_END() |
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}; |
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int cmd_hash_object(int argc, const char **argv, const char *prefix) |
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{ |
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int i; |
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int prefix_length = -1; |
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const char *errstr = NULL; |
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type = blob_type; |
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argc = parse_options(argc, argv, NULL, hash_object_options, |
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hash_object_usage, 0); |
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if (write_object) { |
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prefix = setup_git_directory(); |
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prefix_length = prefix ? strlen(prefix) : 0; |
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if (vpath && prefix) |
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vpath = prefix_filename(prefix, prefix_length, vpath); |
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} |
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git_config(git_default_config, NULL); |
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if (stdin_paths) { |
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if (hashstdin) |
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errstr = "Can't use --stdin-paths with --stdin"; |
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else if (argc) |
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errstr = "Can't specify files with --stdin-paths"; |
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else if (vpath) |
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errstr = "Can't use --stdin-paths with --path"; |
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else if (no_filters) |
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errstr = "Can't use --stdin-paths with --no-filters"; |
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} |
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else { |
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if (hashstdin > 1) |
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errstr = "Multiple --stdin arguments are not supported"; |
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if (vpath && no_filters) |
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errstr = "Can't use --path with --no-filters"; |
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} |
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if (errstr) { |
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error("%s", errstr); |
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usage_with_options(hash_object_usage, hash_object_options); |
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} |
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if (hashstdin) |
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hash_fd(0, type, write_object, vpath); |
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for (i = 0 ; i < argc; i++) { |
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const char *arg = argv[i]; |
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if (0 <= prefix_length) |
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arg = prefix_filename(prefix, prefix_length, arg); |
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hash_object(arg, type, write_object, |
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no_filters ? NULL : vpath ? vpath : arg); |
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} |
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if (stdin_paths) |
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hash_stdin_paths(type, write_object); |
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return 0; |
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}
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