* Copyright (c) 2006 Franck Bui-Huu
* Copyright (c) 2006 Rene Scharfe
*/
-#include <time.h>
#include "cache.h"
#include "builtin.h"
#include "archive.h"
#include "exec_cmd.h"
#include "pkt-line.h"
#include "sideband.h"
+#include "attr.h"
static const char archive_usage[] = \
"git-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]";
-struct archiver archivers[] = {
- {
- .name = "tar",
- .write_archive = write_tar_archive,
- },
- {
- .name = "zip",
- .write_archive = write_zip_archive,
- .parse_extra = parse_extra_zip_args,
- },
+static struct archiver_desc
+{
+ const char *name;
+ write_archive_fn_t write_archive;
+ parse_extra_args_fn_t parse_extra;
+} archivers[] = {
+ { "tar", write_tar_archive, NULL },
+ { "zip", write_zip_archive, parse_extra_zip_args },
};
static int run_remote_archiver(const char *remote, int argc,
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
- if (!strncmp("--exec=", arg, 7)) {
+ if (!prefixcmp(arg, "--exec=")) {
if (exec_at)
die("multiple --exec specified");
exec = arg + 7;
}
url = xstrdup(remote);
- pid = git_connect(fd, url, exec);
+ pid = git_connect(fd, url, exec, 0);
if (pid < 0)
return pid;
if (buf[len-1] == '\n')
buf[--len] = 0;
if (strcmp(buf, "ACK")) {
- if (len > 5 && !strncmp(buf, "NACK ", 5))
+ if (len > 5 && !prefixcmp(buf, "NACK "))
die("git-archive: NACK %s", buf + 5);
die("git-archive: protocol error");
}
die("git-archive: expected a flush");
/* Now, start reading from fd[0] and spit it out to stdout */
- rv = recv_sideband("archive", fd[0], 1, 2, buf, sizeof(buf));
+ rv = recv_sideband("archive", fd[0], 1, 2);
close(fd[0]);
+ close(fd[1]);
rv |= finish_connect(pid);
return !!rv;
}
+static void *format_subst(const struct commit *commit, const char *format,
+ unsigned long *sizep)
+{
+ unsigned long len = *sizep, result_len = 0;
+ const char *a = format;
+ char *result = NULL;
+
+ for (;;) {
+ const char *b, *c;
+ char *fmt, *formatted = NULL;
+ unsigned long a_len, fmt_len, formatted_len, allocated = 0;
+
+ b = memmem(a, len, "$Format:", 8);
+ if (!b || a + len < b + 9)
+ break;
+ c = memchr(b + 8, '$', len - 8);
+ if (!c)
+ break;
+
+ a_len = b - a;
+ fmt_len = c - b - 8;
+ fmt = xmalloc(fmt_len + 1);
+ memcpy(fmt, b + 8, fmt_len);
+ fmt[fmt_len] = '\0';
+
+ formatted_len = format_commit_message(commit, fmt, &formatted,
+ &allocated);
+ free(fmt);
+ result = xrealloc(result, result_len + a_len + formatted_len);
+ memcpy(result + result_len, a, a_len);
+ memcpy(result + result_len + a_len, formatted, formatted_len);
+ result_len += a_len + formatted_len;
+ len -= c + 1 - a;
+ a = c + 1;
+ }
+
+ if (result && len) {
+ result = xrealloc(result, result_len + len);
+ memcpy(result + result_len, a, len);
+ result_len += len;
+ }
+
+ *sizep = result_len;
+
+ return result;
+}
+
+static void *convert_to_archive(const char *path,
+ const void *src, unsigned long *sizep,
+ const struct commit *commit)
+{
+ static struct git_attr *attr_export_subst;
+ struct git_attr_check check[1];
+
+ if (!commit)
+ return NULL;
+
+ if (!attr_export_subst)
+ attr_export_subst = git_attr("export-subst", 12);
+
+ check[0].attr = attr_export_subst;
+ if (git_checkattr(path, ARRAY_SIZE(check), check))
+ return NULL;
+ if (!ATTR_TRUE(check[0].value))
+ return NULL;
+
+ return format_subst(commit, src, sizep);
+}
+
+void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
+ unsigned int mode, enum object_type *type,
+ unsigned long *size,
+ const struct commit *commit)
+{
+ void *buffer, *converted;
+
+ buffer = read_sha1_file(sha1, type, size);
+ if (buffer && S_ISREG(mode)) {
+ converted = convert_to_working_tree(path, buffer, size);
+ if (converted) {
+ free(buffer);
+ buffer = converted;
+ }
+
+ converted = convert_to_archive(path, buffer, size, commit);
+ if (converted) {
+ free(buffer);
+ buffer = converted;
+ }
+ }
+
+ return buffer;
+}
+
static int init_archiver(const char *name, struct archiver *ar)
{
int rv = -1, i;
for (i = 0; i < ARRAY_SIZE(archivers); i++) {
if (!strcmp(name, archivers[i].name)) {
- memcpy(ar, &archivers[i], sizeof(struct archiver));
+ memset(ar, 0, sizeof(*ar));
+ ar->name = archivers[i].name;
+ ar->write_archive = archivers[i].write_archive;
+ ar->parse_extra = archivers[i].parse_extra;
rv = 0;
break;
}
const unsigned char *commit_sha1;
time_t archive_time;
struct tree *tree;
- struct commit *commit;
+ const struct commit *commit;
unsigned char sha1[20];
if (get_sha1(name, sha1))
if (err || !S_ISDIR(mode))
die("current working directory is untracked");
- free(tree);
tree = parse_tree_indirect(tree_sha1);
}
ar_args->tree = tree;
ar_args->commit_sha1 = commit_sha1;
+ ar_args->commit = commit;
ar_args->time = archive_time;
}
{
const char *extra_argv[MAX_EXTRA_ARGS];
int extra_argc = 0;
- const char *format = NULL; /* might want to default to "tar" */
+ const char *format = "tar";
const char *base = "";
int verbose = 0;
int i;
verbose = 1;
continue;
}
- if (!strncmp(arg, "--format=", 9)) {
+ if (!prefixcmp(arg, "--format=")) {
format = arg + 9;
continue;
}
- if (!strncmp(arg, "--prefix=", 9)) {
+ if (!prefixcmp(arg, "--prefix=")) {
base = arg + 9;
continue;
}
/* We need at least one parameter -- tree-ish */
if (argc - 1 < i)
usage(archive_usage);
- if (!format)
- die("You must specify an archive format");
if (init_archiver(format, ar) < 0)
die("Unknown archive format '%s'", format);
if (!strcmp(arg, "--"))
no_more_options = 1;
if (!no_more_options) {
- if (!strncmp(arg, "--remote=", 9)) {
+ if (!prefixcmp(arg, "--remote=")) {
if (remote)
die("Multiple --remote specified");
remote = arg + 9;
if (remote)
return run_remote_archiver(remote, argc, argv);
- setlinebuf(stderr);
+ setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
memset(&ar, 0, sizeof(ar));
tree_idx = parse_archive_args(argc, argv, &ar);