зеркало из https://github.com/microsoft/git.git
103 строки
2.5 KiB
C
103 строки
2.5 KiB
C
/*
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* Copyright (c) 2005, 2006 Rene Scharfe
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*/
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#include "cache.h"
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#include "commit.h"
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#include "tar.h"
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#include "builtin.h"
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#include "quote.h"
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static const char tar_tree_usage[] =
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"git tar-tree [--remote=<repo>] <tree-ish> [basedir]\n"
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"*** Note that this command is now deprecated; use \"git archive\" instead.";
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static const char builtin_get_tar_commit_id_usage[] =
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"git get-tar-commit-id < <tarfile>";
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int cmd_tar_tree(int argc, const char **argv, const char *prefix)
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{
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/*
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* "git tar-tree" is now a wrapper around "git archive --format=tar"
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*
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* $0 --remote=<repo> arg... ==>
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* git archive --format=tar --remote=<repo> arg...
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* $0 tree-ish ==>
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* git archive --format=tar tree-ish
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* $0 tree-ish basedir ==>
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* git archive --format-tar --prefix=basedir tree-ish
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*/
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const char **nargv = xcalloc(sizeof(*nargv), argc + 3);
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struct strbuf sb = STRBUF_INIT;
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char *basedir_arg;
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int nargc = 0;
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nargv[nargc++] = "archive";
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nargv[nargc++] = "--format=tar";
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if (2 <= argc && !prefixcmp(argv[1], "--remote=")) {
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nargv[nargc++] = argv[1];
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argv++;
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argc--;
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}
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/*
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* Because it's just a compatibility wrapper, tar-tree supports only
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* the old behaviour of reading attributes from the work tree.
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*/
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nargv[nargc++] = "--worktree-attributes";
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switch (argc) {
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default:
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usage(tar_tree_usage);
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break;
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case 3:
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/* base-path */
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basedir_arg = xmalloc(strlen(argv[2]) + 11);
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sprintf(basedir_arg, "--prefix=%s/", argv[2]);
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nargv[nargc++] = basedir_arg;
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/* fallthru */
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case 2:
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/* tree-ish */
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nargv[nargc++] = argv[1];
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}
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nargv[nargc] = NULL;
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fprintf(stderr,
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"*** \"git tar-tree\" is now deprecated.\n"
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"*** Running \"git archive\" instead.\n***");
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sq_quote_argv(&sb, nargv, 0);
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strbuf_addch(&sb, '\n');
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fputs(sb.buf, stderr);
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strbuf_release(&sb);
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return cmd_archive(nargc, nargv, prefix);
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}
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/* ustar header + extended global header content */
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#define RECORDSIZE (512)
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#define HEADERSIZE (2 * RECORDSIZE)
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int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
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{
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char buffer[HEADERSIZE];
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struct ustar_header *header = (struct ustar_header *)buffer;
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char *content = buffer + RECORDSIZE;
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ssize_t n;
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if (argc != 1)
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usage(builtin_get_tar_commit_id_usage);
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n = read_in_full(0, buffer, HEADERSIZE);
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if (n < HEADERSIZE)
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die("git get-tar-commit-id: read error");
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if (header->typeflag[0] != 'g')
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return 1;
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if (memcmp(content, "52 comment=", 11))
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return 1;
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n = write_in_full(1, content + 11, 41);
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if (n < 41)
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die_errno("git get-tar-commit-id: write error");
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return 0;
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}
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