void nx_expr_proc__xm_fileop_file_touch(nx_expr_eval_ctx_t *eval_ctx,
nx_module_t *module,
nx_expr_arg_list_t *args)
{
nx_expr_arg_t *arg;
nx_value_t file;
apr_status_t rv;
apr_pool_t *pool;
apr_file_t *fd;
ASSERT(module != NULL);
ASSERT(args != NULL);
arg = NX_DLIST_FIRST(args);
ASSERT(arg != NULL);
ASSERT(arg->expr != NULL);
nx_expr_evaluate(eval_ctx, &file, arg->expr);
if ( file.defined != TRUE )
{
throw_msg("'file' is undef");
}
if ( file.type != NX_VALUE_TYPE_STRING )
{
nx_value_kill(&file);
throw_msg("string type required for 'file'");
}
pool = nx_pool_create_core();
if ( (rv = apr_file_open(&fd, file.string->buf, APR_WRITE | APR_CREATE, APR_OS_DEFAULT,
pool)) != APR_SUCCESS )
{
log_aprerror(rv, "failed to open file '%s' when trying to touch",
file.string->buf);
}
if ( rv == APR_SUCCESS )
{
apr_file_close(fd);
rv = apr_file_mtime_set(file.string->buf, apr_time_now(), pool);
if ( rv == APR_SUCCESS )
{
}
else if ( APR_STATUS_IS_ENOTIMPL(rv) )
{
}
else
{
log_aprerror(rv, "failed to set mtime on file '%s' when trying to touch",
file.string->buf);
}
}
apr_pool_destroy(pool);
nx_value_kill(&file);
}
int lua_apr_file_mtime_set(lua_State *L)
{
apr_status_t status;
const char *path;
apr_time_t mtime;
path = luaL_checkstring(L, 1);
mtime = time_check(L, 2);
status = apr_file_mtime_set(path, mtime, to_pool(L));
return push_status(L, status);
}
static void test_mtime_set(abts_case *tc, void *data)
{
apr_file_t *thefile;
apr_finfo_t finfo;
apr_time_t epoch = 0;
apr_status_t rv;
/* This test sort of depends on the system clock being at least
* marginally ccorrect; We'll be setting the modification time to
* the epoch.
*/
rv = apr_file_open(&thefile, NEWFILENAME,
APR_READ | APR_WRITE | APR_CREATE | APR_TRUNCATE
| APR_BUFFERED | APR_DELONCLOSE,
APR_OS_DEFAULT, p);
APR_ASSERT_SUCCESS(tc, "open file", rv);
/* Check that the current mtime is not the epoch */
rv = apr_stat(&finfo, NEWFILENAME, APR_FINFO_MTIME, p);
if (rv == APR_INCOMPLETE) {
char *str;
int i;
str = apr_pstrdup(p, "APR_INCOMPLETE: Missing ");
for (i = 0; vfi[i].bits; ++i) {
if (vfi[i].bits & ~finfo.valid) {
str = apr_pstrcat(p, str, vfi[i].description, " ", NULL);
}
}
ABTS_FAIL(tc, str);
}
APR_ASSERT_SUCCESS(tc, "get initial mtime", rv);
ABTS_TRUE(tc, finfo.mtime != epoch);
/* Reset the mtime to the epoch and verify the result.
* Note: we blindly assume that if the first apr_stat succeeded,
* the second one will, too.
*/
rv = apr_file_mtime_set(NEWFILENAME, epoch, p);
APR_ASSERT_SUCCESS(tc, "set mtime", rv);
rv = apr_stat(&finfo, NEWFILENAME, APR_FINFO_MTIME, p);
APR_ASSERT_SUCCESS(tc, "get modified mtime", rv);
ABTS_TRUE(tc, finfo.mtime == epoch);
apr_file_close(thefile);
}
svn_error_t *
svn_cl__edit_string_externally(svn_string_t **edited_contents /* UTF-8! */,
const char **tmpfile_left /* UTF-8! */,
const char *editor_cmd,
const char *base_dir /* UTF-8! */,
const svn_string_t *contents /* UTF-8! */,
const char *filename,
apr_hash_t *config,
svn_boolean_t as_text,
const char *encoding,
apr_pool_t *pool)
{
const char *editor;
const char *cmd;
apr_file_t *tmp_file;
const char *tmpfile_name;
const char *tmpfile_native;
const char *tmpfile_apr, *base_dir_apr;
svn_string_t *translated_contents;
apr_status_t apr_err, apr_err2;
apr_size_t written;
apr_finfo_t finfo_before, finfo_after;
svn_error_t *err = SVN_NO_ERROR, *err2;
char *old_cwd;
int sys_err;
svn_boolean_t remove_file = TRUE;
SVN_ERR(find_editor_binary(&editor, editor_cmd, config));
/* Convert file contents from UTF-8/LF if desired. */
if (as_text)
{
const char *translated;
SVN_ERR(svn_subst_translate_cstring2(contents->data, &translated,
APR_EOL_STR, FALSE,
NULL, FALSE, pool));
translated_contents = svn_string_create("", pool);
if (encoding)
SVN_ERR(svn_utf_cstring_from_utf8_ex2(&translated_contents->data,
translated, encoding, pool));
else
SVN_ERR(svn_utf_cstring_from_utf8(&translated_contents->data,
translated, pool));
translated_contents->len = strlen(translated_contents->data);
}
else
translated_contents = svn_string_dup(contents, pool);
/* Move to BASE_DIR to avoid getting characters that need quoting
into tmpfile_name */
apr_err = apr_filepath_get(&old_cwd, APR_FILEPATH_NATIVE, pool);
if (apr_err)
return svn_error_wrap_apr(apr_err, _("Can't get working directory"));
/* APR doesn't like "" directories */
if (base_dir[0] == '\0')
base_dir_apr = ".";
else
SVN_ERR(svn_path_cstring_from_utf8(&base_dir_apr, base_dir, pool));
apr_err = apr_filepath_set(base_dir_apr, pool);
if (apr_err)
{
return svn_error_wrap_apr
(apr_err, _("Can't change working directory to '%s'"), base_dir);
}
/*** From here on, any problems that occur require us to cd back!! ***/
/* Ask the working copy for a temporary file named FILENAME-something. */
err = svn_io_open_uniquely_named(&tmp_file, &tmpfile_name,
"" /* dirpath */,
filename,
".tmp",
svn_io_file_del_none, pool, pool);
if (err && (APR_STATUS_IS_EACCES(err->apr_err) || err->apr_err == EROFS))
{
const char *temp_dir_apr;
svn_error_clear(err);
SVN_ERR(svn_io_temp_dir(&base_dir, pool));
SVN_ERR(svn_path_cstring_from_utf8(&temp_dir_apr, base_dir, pool));
apr_err = apr_filepath_set(temp_dir_apr, pool);
if (apr_err)
{
return svn_error_wrap_apr
(apr_err, _("Can't change working directory to '%s'"), base_dir);
}
err = svn_io_open_uniquely_named(&tmp_file, &tmpfile_name,
"" /* dirpath */,
filename,
".tmp",
svn_io_file_del_none, pool, pool);
}
if (err)
goto cleanup2;
/*** From here on, any problems that occur require us to cleanup
the file we just created!! ***/
/* Dump initial CONTENTS to TMP_FILE. */
apr_err = apr_file_write_full(tmp_file, translated_contents->data,
translated_contents->len, &written);
apr_err2 = apr_file_close(tmp_file);
if (! apr_err)
apr_err = apr_err2;
/* Make sure the whole CONTENTS were written, else return an error. */
if (apr_err)
{
err = svn_error_wrap_apr(apr_err, _("Can't write to '%s'"),
tmpfile_name);
goto cleanup;
}
err = svn_path_cstring_from_utf8(&tmpfile_apr, tmpfile_name, pool);
if (err)
goto cleanup;
/* Get information about the temporary file before the user has
been allowed to edit its contents. */
apr_err = apr_stat(&finfo_before, tmpfile_apr,
APR_FINFO_MTIME, pool);
if (apr_err)
{
err = svn_error_wrap_apr(apr_err, _("Can't stat '%s'"), tmpfile_name);
goto cleanup;
}
/* Backdate the file a little bit in case the editor is very fast
and doesn't change the size. (Use two seconds, since some
filesystems have coarse granularity.) It's OK if this call
fails, so we don't check its return value.*/
apr_file_mtime_set(tmpfile_apr, finfo_before.mtime - 2000, pool);
/* Stat it again to get the mtime we actually set. */
apr_err = apr_stat(&finfo_before, tmpfile_apr,
APR_FINFO_MTIME | APR_FINFO_SIZE, pool);
if (apr_err)
{
err = svn_error_wrap_apr(apr_err, _("Can't stat '%s'"), tmpfile_name);
goto cleanup;
}
/* Prepare the editor command line. */
err = svn_utf_cstring_from_utf8(&tmpfile_native, tmpfile_name, pool);
if (err)
goto cleanup;
cmd = apr_psprintf(pool, "%s %s", editor, tmpfile_native);
/* If the caller wants us to leave the file around, return the path
of the file we'll use, and make a note not to destroy it. */
if (tmpfile_left)
{
*tmpfile_left = svn_dirent_join(base_dir, tmpfile_name, pool);
remove_file = FALSE;
}
/* Now, run the editor command line. */
sys_err = system(cmd);
if (sys_err != 0)
{
/* Extracting any meaning from sys_err is platform specific, so just
use the raw value. */
err = svn_error_createf(SVN_ERR_EXTERNAL_PROGRAM, NULL,
_("system('%s') returned %d"), cmd, sys_err);
goto cleanup;
}
/* Get information about the temporary file after the assumed editing. */
apr_err = apr_stat(&finfo_after, tmpfile_apr,
APR_FINFO_MTIME | APR_FINFO_SIZE, pool);
if (apr_err)
{
err = svn_error_wrap_apr(apr_err, _("Can't stat '%s'"), tmpfile_name);
goto cleanup;
}
/* If the file looks changed... */
if ((finfo_before.mtime != finfo_after.mtime) ||
(finfo_before.size != finfo_after.size))
{
svn_stringbuf_t *edited_contents_s;
err = svn_stringbuf_from_file2(&edited_contents_s, tmpfile_name, pool);
if (err)
goto cleanup;
*edited_contents = svn_stringbuf__morph_into_string(edited_contents_s);
/* Translate back to UTF8/LF if desired. */
if (as_text)
{
err = svn_subst_translate_string2(edited_contents, FALSE, FALSE,
*edited_contents, encoding, FALSE,
pool, pool);
if (err)
{
err = svn_error_quick_wrap
(err,
_("Error normalizing edited contents to internal format"));
goto cleanup;
}
}
}
else
{
/* No edits seem to have been made */
*edited_contents = NULL;
}
cleanup:
if (remove_file)
{
/* Remove the file from disk. */
err2 = svn_io_remove_file2(tmpfile_name, FALSE, pool);
/* Only report remove error if there was no previous error. */
if (! err && err2)
err = err2;
else
svn_error_clear(err2);
}
cleanup2:
/* If we against all probability can't cd back, all further relative
file references would be screwed up, so we have to abort. */
apr_err = apr_filepath_set(old_cwd, pool);
if (apr_err)
{
svn_handle_error2(svn_error_wrap_apr
(apr_err, _("Can't restore working directory")),
stderr, TRUE /* fatal */, "svn: ");
}
return svn_error_trace(err);
}
