#include "cache.h"
#include "commit.h"
#include "attr.h"
+#include "archive.h"
static void format_subst(const struct commit *commit,
const char *src, size_t len,
const char *b, *c;
b = memmem(src, len, "$Format:", 8);
- if (!b || src + len < b + 9)
+ if (!b)
break;
- c = memchr(b + 8, '$', len - 8);
+ c = memchr(b + 8, '$', (src + len) - b - 8);
if (!c)
break;
free(to_free);
}
-static int convert_to_archive(const char *path,
- const void *src, size_t len,
- struct strbuf *buf,
- const struct commit *commit)
-{
- static struct git_attr *attr_export_subst;
- struct git_attr_check check[1];
-
- if (!commit)
- return 0;
-
- 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 0;
- if (!ATTR_TRUE(check[0].value))
- return 0;
-
- format_subst(commit, src, len, buf);
- return 1;
-}
-
-void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
- unsigned int mode, enum object_type *type,
- unsigned long *sizep,
- const struct commit *commit)
+static void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
+ unsigned int mode, enum object_type *type,
+ unsigned long *sizep, const struct commit *commit)
{
void *buffer;
strbuf_init(&buf, 0);
strbuf_attach(&buf, buffer, *sizep, *sizep + 1);
convert_to_working_tree(path, buf.buf, buf.len, &buf);
- convert_to_archive(path, buf.buf, buf.len, &buf, commit);
+ if (commit)
+ format_subst(commit, buf.buf, buf.len, &buf);
buffer = strbuf_detach(&buf, &size);
*sizep = size;
}
return buffer;
}
+static void setup_archive_check(struct git_attr_check *check)
+{
+ static struct git_attr *attr_export_ignore;
+ static struct git_attr *attr_export_subst;
+
+ if (!attr_export_ignore) {
+ attr_export_ignore = git_attr("export-ignore", 13);
+ attr_export_subst = git_attr("export-subst", 12);
+ }
+ check[0].attr = attr_export_ignore;
+ check[1].attr = attr_export_subst;
+}
+
+struct archiver_context {
+ struct archiver_args *args;
+ write_archive_entry_fn_t write_entry;
+};
+
+static int write_archive_entry(const unsigned char *sha1, const char *base,
+ int baselen, const char *filename, unsigned mode, int stage,
+ void *context)
+{
+ static struct strbuf path = STRBUF_INIT;
+ struct archiver_context *c = context;
+ struct archiver_args *args = c->args;
+ write_archive_entry_fn_t write_entry = c->write_entry;
+ struct git_attr_check check[2];
+ const char *path_without_prefix;
+ int convert = 0;
+ int err;
+ enum object_type type;
+ unsigned long size;
+ void *buffer;
+
+ strbuf_reset(&path);
+ strbuf_grow(&path, PATH_MAX);
+ strbuf_add(&path, base, baselen);
+ strbuf_addstr(&path, filename);
+ path_without_prefix = path.buf + args->baselen;
+
+ setup_archive_check(check);
+ if (!git_checkattr(path_without_prefix, ARRAY_SIZE(check), check)) {
+ if (ATTR_TRUE(check[0].value))
+ return 0;
+ convert = ATTR_TRUE(check[1].value);
+ }
+
+ if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
+ strbuf_addch(&path, '/');
+ if (args->verbose)
+ fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
+ err = write_entry(args, sha1, path.buf, path.len, mode, NULL, 0);
+ if (err)
+ return err;
+ return READ_TREE_RECURSIVE;
+ }
+
+ buffer = sha1_file_to_archive(path_without_prefix, sha1, mode,
+ &type, &size, convert ? args->commit : NULL);
+ if (!buffer)
+ return error("cannot read %s", sha1_to_hex(sha1));
+ if (args->verbose)
+ fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
+ err = write_entry(args, sha1, path.buf, path.len, mode, buffer, size);
+ free(buffer);
+ return err;
+}
+
+int write_archive_entries(struct archiver_args *args,
+ write_archive_entry_fn_t write_entry)
+{
+ struct archiver_context context;
+ int err;
+
+ if (args->baselen > 0 && args->base[args->baselen - 1] == '/') {
+ size_t len = args->baselen;
+
+ while (len > 1 && args->base[len - 2] == '/')
+ len--;
+ if (args->verbose)
+ fprintf(stderr, "%.*s\n", (int)len, args->base);
+ err = write_entry(args, args->tree->object.sha1, args->base,
+ len, 040777, NULL, 0);
+ if (err)
+ return err;
+ }
+
+ context.args = args;
+ context.write_entry = write_entry;
+
+ err = read_tree_recursive(args->tree, args->base, args->baselen, 0,
+ args->pathspec, write_archive_entry, &context);
+ if (err == READ_TREE_RECURSIVE)
+ err = 0;
+ return err;
+}