static int write_file_filtered(
git_oid *id,
git_off_t *size,
git_odb *odb,
const char *full_path,
git_filter_list *fl)
{
int error;
git_buf tgt = GIT_BUF_INIT;
error = git_filter_list_apply_to_file(&tgt, fl, NULL, full_path);
/* Write the file to disk if it was properly filtered */
if (!error) {
*size = tgt.size;
error = git_odb_write(id, odb, tgt.ptr, tgt.size, GIT_OBJECT_BLOB);
}
git_buf_dispose(&tgt);
return error;
}
static int workdir_reader_read(
git_buf *out,
git_oid *out_id,
git_filemode_t *out_filemode,
git_reader *_reader,
const char *filename)
{
workdir_reader *reader = (workdir_reader *)_reader;
git_buf path = GIT_BUF_INIT;
struct stat st;
git_filemode_t filemode;
git_filter_list *filters = NULL;
const git_index_entry *idx_entry;
git_oid id;
int error;
if ((error = git_buf_joinpath(&path,
git_repository_workdir(reader->repo), filename)) < 0)
goto done;
if ((error = p_lstat(path.ptr, &st)) < 0) {
if (error == -1 && errno == ENOENT)
error = GIT_ENOTFOUND;
giterr_set(GITERR_OS, "could not stat '%s'", path.ptr);
goto done;
}
filemode = git_futils_canonical_mode(st.st_mode);
/*
* Patch application - for example - uses the filtered version of
* the working directory data to match git. So we will run the
* workdir -> ODB filter on the contents in this workdir reader.
*/
if ((error = git_filter_list_load(&filters, reader->repo, NULL, filename,
GIT_FILTER_TO_ODB, GIT_FILTER_DEFAULT)) < 0)
goto done;
if ((error = git_filter_list_apply_to_file(out,
filters, reader->repo, path.ptr)) < 0)
goto done;
if (out_id || reader->index) {
if ((error = git_odb_hash(&id, out->ptr, out->size, GIT_OBJ_BLOB)) < 0)
goto done;
}
if (reader->index) {
if (!(idx_entry = git_index_get_bypath(reader->index, filename, 0)) ||
filemode != idx_entry->mode ||
!git_oid_equal(&id, &idx_entry->id)) {
error = GIT_READER_MISMATCH;
goto done;
}
}
if (out_id)
git_oid_cpy(out_id, &id);
if (out_filemode)
*out_filemode = filemode;
done:
git_filter_list_free(filters);
git_buf_dispose(&path);
return error;
}
