diff options
Diffstat (limited to 'builtin-tar-tree.c')
-rw-r--r-- | builtin-tar-tree.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/builtin-tar-tree.c b/builtin-tar-tree.c new file mode 100644 index 0000000000..3f1e7012db --- /dev/null +++ b/builtin-tar-tree.c @@ -0,0 +1,103 @@ +/* + * Copyright (c) 2005, 2006 Rene Scharfe + */ +#include "cache.h" +#include "commit.h" +#include "tar.h" +#include "builtin.h" +#include "quote.h" + +static const char tar_tree_usage[] = +"git tar-tree [--remote=<repo>] <tree-ish> [basedir]\n" +"*** Note that this command is now deprecated; use \"git archive\" instead."; + +static const char builtin_get_tar_commit_id_usage[] = +"git get-tar-commit-id < <tarfile>"; + +int cmd_tar_tree(int argc, const char **argv, const char *prefix) +{ + /* + * "git tar-tree" is now a wrapper around "git archive --format=tar" + * + * $0 --remote=<repo> arg... ==> + * git archive --format=tar --remote=<repo> arg... + * $0 tree-ish ==> + * git archive --format=tar tree-ish + * $0 tree-ish basedir ==> + * git archive --format-tar --prefix=basedir tree-ish + */ + int i; + const char **nargv = xcalloc(sizeof(*nargv), argc + 3); + char *basedir_arg; + int nargc = 0; + + nargv[nargc++] = "archive"; + nargv[nargc++] = "--format=tar"; + + if (2 <= argc && !prefixcmp(argv[1], "--remote=")) { + nargv[nargc++] = argv[1]; + argv++; + argc--; + } + + /* + * Because it's just a compatibility wrapper, tar-tree supports only + * the old behaviour of reading attributes from the work tree. + */ + nargv[nargc++] = "--worktree-attributes"; + + switch (argc) { + default: + usage(tar_tree_usage); + break; + case 3: + /* base-path */ + basedir_arg = xmalloc(strlen(argv[2]) + 11); + sprintf(basedir_arg, "--prefix=%s/", argv[2]); + nargv[nargc++] = basedir_arg; + /* fallthru */ + case 2: + /* tree-ish */ + nargv[nargc++] = argv[1]; + } + nargv[nargc] = NULL; + + fprintf(stderr, + "*** \"git tar-tree\" is now deprecated.\n" + "*** Running \"git archive\" instead.\n***"); + for (i = 0; i < nargc; i++) { + fputc(' ', stderr); + sq_quote_print(stderr, nargv[i]); + } + fputc('\n', stderr); + return cmd_archive(nargc, nargv, prefix); +} + +/* ustar header + extended global header content */ +#define RECORDSIZE (512) +#define HEADERSIZE (2 * RECORDSIZE) + +int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix) +{ + char buffer[HEADERSIZE]; + struct ustar_header *header = (struct ustar_header *)buffer; + char *content = buffer + RECORDSIZE; + ssize_t n; + + if (argc != 1) + usage(builtin_get_tar_commit_id_usage); + + n = read_in_full(0, buffer, HEADERSIZE); + if (n < HEADERSIZE) + die("git get-tar-commit-id: read error"); + if (header->typeflag[0] != 'g') + return 1; + if (memcmp(content, "52 comment=", 11)) + return 1; + + n = write_in_full(1, content + 11, 41); + if (n < 41) + die_errno("git get-tar-commit-id: write error"); + + return 0; +} |