Replace usage of opendir/readdir/closedir API to traverse directories
recursively, at copy_or_link_directory function, by the dir-iterator
API. This simplifies the code and avoid recursive calls to
copy_or_link_directory.
This process also makes copy_or_link_directory call die() in case of an
error on readdir or stat, inside dir_iterator_advance. Previously it
would just print a warning for errors on stat and ignore errors on
readdir, which isn't nice because a local git clone would end up
successfully even though the .git/objects copy didn't fully succeeded.
Signed-off-by: Matheus Tavares <matheus.bernardino@xxxxxx>
---
I can also make the change described in the last paragraph in a separate
patch before this one, but I would have to undo it in this patch because
dir-iterator already implements it. So, IMHO, it would be just noise
and not worthy.
builtin/clone.c | 45 +++++++++++++++++++++++----------------------
1 file changed, 23 insertions(+), 22 deletions(-)
diff --git a/builtin/clone.c b/builtin/clone.c
index fd580fa98d..b23ba64c94 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -23,6 +23,8 @@
#include "transport.h"
#include "strbuf.h"
#include "dir.h"
+#include "dir-iterator.h"
+#include "iterator.h"
#include "sigchain.h"
#include "branch.h"
#include "remote.h"
@@ -411,42 +413,37 @@ static void mkdir_if_missing(const char *pathname, mode_t mode)
}
static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest,
- const char *src_repo, int src_baselen)
+ const char *src_repo)
{
- struct dirent *de;
- struct stat buf;
int src_len, dest_len;
- DIR *dir;
-
- dir = opendir(src->buf);
- if (!dir)
- die_errno(_("failed to open '%s'"), src->buf);
+ struct dir_iterator *iter;
+ int iter_status;
+ struct stat st;
+ unsigned flags;
mkdir_if_missing(dest->buf, 0777);
+ flags = DIR_ITERATOR_PEDANTIC | DIR_ITERATOR_FOLLOW_SYMLINKS;
+ iter = dir_iterator_begin(src->buf, flags);
+
strbuf_addch(src, '/');
src_len = src->len;
strbuf_addch(dest, '/');
dest_len = dest->len;
- while ((de = readdir(dir)) != NULL) {
+ while ((iter_status = dir_iterator_advance(iter)) == ITER_OK) {
strbuf_setlen(src, src_len);
- strbuf_addstr(src, de->d_name);
+ strbuf_addstr(src, iter->relative_path);
strbuf_setlen(dest, dest_len);
- strbuf_addstr(dest, de->d_name);
- if (stat(src->buf, &buf)) {
- warning (_("failed to stat %s\n"), src->buf);
- continue;
- }
- if (S_ISDIR(buf.st_mode)) {
- if (!is_dot_or_dotdot(de->d_name))
- copy_or_link_directory(src, dest,
- src_repo, src_baselen);
+ strbuf_addstr(dest, iter->relative_path);
+
+ if (S_ISDIR(iter->st.st_mode)) {
+ mkdir_if_missing(dest->buf, 0777);
continue;
}
/* Files that cannot be copied bit-for-bit... */
- if (!strcmp(src->buf + src_baselen, "/info/alternates")) {
+ if (!strcmp(iter->relative_path, "info/alternates")) {
copy_alternates(src, dest, src_repo);
continue;
}
@@ -463,7 +460,11 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest,
if (copy_file_with_time(dest->buf, src->buf, 0666))
die_errno(_("failed to copy file to '%s'"), dest->buf);
}
- closedir(dir);
+
+ if (iter_status != ITER_DONE) {
+ strbuf_setlen(src, src_len);
+ die(_("failed to iterate over '%s'"), src->buf);
+ }
}
static void clone_local(const char *src_repo, const char *dest_repo)
@@ -481,7 +482,7 @@ static void clone_local(const char *src_repo, const char *dest_repo)
get_common_dir(&dest, dest_repo);
strbuf_addstr(&src, "/objects");
strbuf_addstr(&dest, "/objects");
- copy_or_link_directory(&src, &dest, src_repo, src.len);
+ copy_or_link_directory(&src, &dest, src_repo);
strbuf_release(&src);
strbuf_release(&dest);
}
--
2.20.1
