*/
#include <time.h>
#include "cache.h"
-#include "tree-walk.h"
#include "commit.h"
#include "strbuf.h"
#include "tar.h"
#include "builtin.h"
#include "pkt-line.h"
+#include "archive.h"
#define RECORDSIZE (512)
#define BLOCKSIZE (RECORDSIZE * 20)
static time_t archive_time;
static int tar_umask;
+static int verbose;
/* writes out the whole block, but only if it is full */
static void write_if_needed(void)
mode = 0100666;
sprintf(header.name, "%s.paxheader", sha1_to_hex(sha1));
} else {
+ if (verbose)
+ fprintf(stderr, "%.*s\n", path->len, path->buf);
if (S_ISDIR(mode)) {
*header.typeflag = TYPEFLAG_DIR;
mode = (mode | 0777) & ~tar_umask;
free(ext_header.buf);
}
-static void traverse_tree(struct tree_desc *tree, struct strbuf *path)
-{
- int pathlen = path->len;
- struct name_entry entry;
-
- while (tree_entry(tree, &entry)) {
- void *eltbuf;
- char elttype[20];
- unsigned long eltsize;
-
- eltbuf = read_sha1_file(entry.sha1, elttype, &eltsize);
- if (!eltbuf)
- die("cannot read %s", sha1_to_hex(entry.sha1));
-
- path->len = pathlen;
- strbuf_append_string(path, entry.path);
- if (S_ISDIR(entry.mode))
- strbuf_append_string(path, "/");
-
- write_entry(entry.sha1, path, entry.mode, eltbuf, eltsize);
-
- if (S_ISDIR(entry.mode)) {
- struct tree_desc subtree;
- subtree.buf = eltbuf;
- subtree.size = eltsize;
- traverse_tree(&subtree, path);
- }
- free(eltbuf);
- }
-}
-
static int git_tar_config(const char *var, const char *value)
{
if (!strcmp(var, "tar.umask")) {
static int generate_tar(int argc, const char **argv, const char *prefix)
{
- unsigned char sha1[20], tree_sha1[20];
- struct commit *commit;
- struct tree_desc tree;
- struct strbuf current_path;
- void *buffer;
-
- current_path.buf = xmalloc(PATH_MAX);
- current_path.alloc = PATH_MAX;
- current_path.len = current_path.eof = 0;
+ struct archiver_args args;
+ int result;
+ char *base = NULL;
git_config(git_tar_config);
- switch (argc) {
- case 3:
- strbuf_append_string(¤t_path, argv[2]);
- strbuf_append_string(¤t_path, "/");
- /* FALLTHROUGH */
- case 2:
- if (get_sha1(argv[1], sha1))
- die("Not a valid object name %s", argv[1]);
- break;
- default:
+ memset(&args, 0, sizeof(args));
+ if (argc != 2 && argc != 3)
usage(tar_tree_usage);
+ if (argc == 3) {
+ int baselen = strlen(argv[2]);
+ base = xmalloc(baselen + 2);
+ memcpy(base, argv[2], baselen);
+ base[baselen] = '/';
+ base[baselen + 1] = '\0';
}
+ args.base = base;
+ parse_treeish_arg(argv + 1, &args, NULL);
- commit = lookup_commit_reference_gently(sha1, 1);
- if (commit) {
- write_global_extended_header(commit->object.sha1);
- archive_time = commit->date;
- } else
- archive_time = time(NULL);
-
- tree.buf = buffer = read_object_with_reference(sha1, tree_type,
- &tree.size, tree_sha1);
- if (!tree.buf)
- die("not a reference to a tag, commit or tree object: %s",
- sha1_to_hex(sha1));
-
- if (current_path.len > 0)
- write_entry(tree_sha1, ¤t_path, 040777, NULL, 0);
- traverse_tree(&tree, ¤t_path);
- write_trailer();
+ result = write_tar_archive(&args);
+ free(base);
+
+ return result;
+}
+
+static int write_tar_entry(const unsigned char *sha1,
+ const char *base, int baselen,
+ const char *filename, unsigned mode, int stage)
+{
+ static struct strbuf path;
+ int filenamelen = strlen(filename);
+ void *buffer;
+ char type[20];
+ unsigned long size;
+
+ if (!path.alloc) {
+ path.buf = xmalloc(PATH_MAX);
+ path.alloc = PATH_MAX;
+ path.len = path.eof = 0;
+ }
+ if (path.alloc < baselen + filenamelen) {
+ free(path.buf);
+ path.buf = xmalloc(baselen + filenamelen);
+ path.alloc = baselen + filenamelen;
+ }
+ memcpy(path.buf, base, baselen);
+ memcpy(path.buf + baselen, filename, filenamelen);
+ path.len = baselen + filenamelen;
+ if (S_ISDIR(mode)) {
+ strbuf_append_string(&path, "/");
+ buffer = NULL;
+ size = 0;
+ } else {
+ buffer = read_sha1_file(sha1, type, &size);
+ if (!buffer)
+ die("cannot read %s", sha1_to_hex(sha1));
+ }
+
+ write_entry(sha1, &path, mode, buffer, size);
free(buffer);
- free(current_path.buf);
+
+ return READ_TREE_RECURSIVE;
+}
+
+int write_tar_archive(struct archiver_args *args)
+{
+ int plen = args->base ? strlen(args->base) : 0;
+
+ git_config(git_tar_config);
+
+ archive_time = args->time;
+ verbose = args->verbose;
+
+ if (args->commit_sha1)
+ write_global_extended_header(args->commit_sha1);
+
+ if (args->base && plen > 0 && args->base[plen - 1] == '/') {
+ char *base = xstrdup(args->base);
+ int baselen = strlen(base);
+
+ while (baselen > 0 && base[baselen - 1] == '/')
+ base[--baselen] = '\0';
+ write_tar_entry(args->tree->object.sha1, "", 0, base, 040777, 0);
+ free(base);
+ }
+ read_tree_recursive(args->tree, args->base, plen, 0,
+ args->pathspec, write_tar_entry);
+ write_trailer();
+
return 0;
}
usage(tar_tree_usage);
/* --remote=<repo> */
- url = strdup(argv[1]+9);
+ url = xstrdup(argv[1]+9);
pid = git_connect(fd, url, exec);
if (pid < 0)
return 1;