1 files changed, 126 insertions, 0 deletions
diff --git a/src/util/win32/w32_util.c b/src/util/win32/w32_util.c
new file mode 100644
index 0000000..f5b006a
--- /dev/null
+++ b/src/util/win32/w32_util.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "w32_util.h"
+
+/**
+ * Creates a FindFirstFile(Ex) filter string from a UTF-8 path.
+ * The filter string enumerates all items in the directory.
+ *
+ * @param dest The buffer to receive the filter string.
+ * @param src The UTF-8 path of the directory to enumerate.
+ * @return True if the filter string was created successfully; false otherwise
+ */
+bool git_win32__findfirstfile_filter(git_win32_path dest, const char *src)
+{
+	static const wchar_t suffix[] = L"\\*";
+	int len = git_win32_path_from_utf8(dest, src);
+
+	/* Ensure the path was converted */
+	if (len < 0)
+		return false;
+
+	/* Ensure that the path does not end with a trailing slash,
+	 * because we're about to add one. Don't rely our trim_end
+	 * helper, because we want to remove the backslash even for
+	 * drive letter paths, in this case. */
+	if (len > 0 &&
+		(dest[len - 1] == L'/' || dest[len - 1] == L'\\')) {
+		dest[len - 1] = L'\0';
+		len--;
+	}
+
+	/* Ensure we have enough room to add the suffix */
+	if ((size_t)len >= GIT_WIN_PATH_UTF16 - CONST_STRLEN(suffix))
+		return false;
+
+	wcscat(dest, suffix);
+	return true;
+}
+
+/**
+ * Ensures the given path (file or folder) has the +H (hidden) attribute set.
+ *
+ * @param path The path which should receive the +H bit.
+ * @return 0 on success; -1 on failure
+ */
+int git_win32__set_hidden(const char *path, bool hidden)
+{
+	git_win32_path buf;
+	DWORD attrs, newattrs;
+
+	if (git_win32_path_from_utf8(buf, path) < 0)
+		return -1;
+
+	attrs = GetFileAttributesW(buf);
+
+	/* Ensure the path exists */
+	if (attrs == INVALID_FILE_ATTRIBUTES)
+		return -1;
+
+	if (hidden)
+		newattrs = attrs | FILE_ATTRIBUTE_HIDDEN;
+	else
+		newattrs = attrs & ~FILE_ATTRIBUTE_HIDDEN;
+
+	if (attrs != newattrs && !SetFileAttributesW(buf, newattrs)) {
+		git_error_set(GIT_ERROR_OS, "failed to %s hidden bit for '%s'",
+			hidden ? "set" : "unset", path);
+		return -1;
+	}
+
+	return 0;
+}
+
+int git_win32__hidden(bool *out, const char *path)
+{
+	git_win32_path buf;
+	DWORD attrs;
+
+	if (git_win32_path_from_utf8(buf, path) < 0)
+		return -1;
+
+	attrs = GetFileAttributesW(buf);
+
+	/* Ensure the path exists */
+	if (attrs == INVALID_FILE_ATTRIBUTES)
+		return -1;
+
+	*out = (attrs & FILE_ATTRIBUTE_HIDDEN) ? true : false;
+	return 0;
+}
+
+int git_win32__file_attribute_to_stat(
+	struct stat *st,
+	const WIN32_FILE_ATTRIBUTE_DATA *attrdata,
+	const wchar_t *path)
+{
+	git_win32__stat_init(st,
+		attrdata->dwFileAttributes,
+		attrdata->nFileSizeHigh,
+		attrdata->nFileSizeLow,
+		attrdata->ftCreationTime,
+		attrdata->ftLastAccessTime,
+		attrdata->ftLastWriteTime);
+
+	if (attrdata->dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT && path) {
+		git_win32_path target;
+
+		if (git_win32_path_readlink_w(target, path) >= 0) {
+			st->st_mode = (st->st_mode & ~S_IFMT) | S_IFLNK;
+
+			/* st_size gets the UTF-8 length of the target name, in bytes,
+			 * not counting the NULL terminator */
+			if ((st->st_size = git_utf8_from_16(NULL, 0, target)) < 0) {
+				git_error_set(GIT_ERROR_OS, "could not convert reparse point name for '%ls'", path);
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+}