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Simple Win32 implementation of rsync()

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This commit is contained in:
David Kinder 2021-03-08 15:33:33 +00:00
parent 3fd3a1d19d
commit a6bb5c1b6c
1 changed files with 81 additions and 1 deletions
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82
foundation-module/Chapter 1/Windows Platform.w
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@ -24,7 +24,9 @@ on a POSIX operating system.
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <shellapi.h>
#include <shlobj.h>
#include <shlwapi.h>
#undef IN
#undef OUT
@ -201,8 +203,86 @@ void Platform::closedir(void *D) {
@h Sync.
=
void Platform::path_add(const char* base, const char* add, char* path) {
strcpy(path, base);
PathAppendA(path, add);
}
void Platform::rsync(char *transcoded_source, char *transcoded_dest) {
printf("Platform::rsync() is not yet implemented!\n");
CreateDirectoryA(transcoded_dest, 0);
char srcPath[MAX_PATH], destPath[MAX_PATH];
WIN32_FIND_DATA findData = { 0 };
Platform::path_add(transcoded_dest, "*", destPath);
HANDLE findHandle = FindFirstFileA(destPath, &findData);
if (findHandle != INVALID_HANDLE_VALUE) {
do {
if ((strcmp(findData.cFileName, ".") == 0) || (strcmp(findData.cFileName, "..") == 0))
continue;
Platform::path_add(transcoded_source, findData.cFileName, srcPath);
int remove = 1;
{
DWORD srcAttrs = GetFileAttributesA(srcPath);
if (srcAttrs != INVALID_FILE_ATTRIBUTES) {
if ((findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == (srcAttrs & FILE_ATTRIBUTE_DIRECTORY))
remove = 0;
}
}
if (remove) {
Platform::path_add(transcoded_dest, findData.cFileName, destPath);
if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
destPath[strlen(destPath) + 1] = 0;
SHFILEOPSTRUCTA oper = { 0 };
oper.wFunc = FO_DELETE;
oper.pFrom = destPath;
oper.fFlags = FOF_NO_UI;
SHFileOperationA(&oper);
}
else DeleteFileA(destPath);
}
}
while (FindNextFileA(findHandle, &findData) != 0);
FindClose(findHandle);
}
Platform::path_add(transcoded_source, "*", srcPath);
findHandle = FindFirstFileA(srcPath, &findData);
if (findHandle != INVALID_HANDLE_VALUE) {
do {
if ((strcmp(findData.cFileName, ".") == 0) || (strcmp(findData.cFileName, "..") == 0))
continue;
Platform::path_add(transcoded_source, findData.cFileName, srcPath);
Platform::path_add(transcoded_dest, findData.cFileName, destPath);
if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
CreateDirectoryA(destPath, 0);
Platform::rsync(srcPath, destPath);
} else {
int needCopy = 1;
{
WIN32_FIND_DATA destFindData = { 0 };
HANDLE destFindHandle = FindFirstFileA(destPath, &destFindData);
if (destFindHandle != INVALID_HANDLE_VALUE) {
if ((findData.nFileSizeLow == destFindData.nFileSizeLow) && (findData.nFileSizeHigh == destFindData.nFileSizeHigh)) {
if (CompareFileTime(&(findData.ftLastWriteTime), &(destFindData.ftLastWriteTime)) == 0)
needCopy = 0;
}
FindClose(destFindHandle);
}
}
if (needCopy)
CopyFileA(srcPath, destPath, 0);
}
}
while (FindNextFileA(findHandle, &findData) != 0);
FindClose(findHandle);
}
}
@h Sleep. The Windows |Sleep| call measures time in milliseconds, whereas