- added filesystem utilities

src_rebuild/utils/fs.cpp

@@ -0,0 +1,175 @@
+#include "fs.h"
+
+#include <string>
+#include <cassert>
+
+#ifdef _WIN32
+
+#include <direct.h>
+#include <wtypes.h>
+
+#define HOME_ENV "USERPROFILE"
+
+void FS_FixPathSlashes(char* pathbuff)
+{
+    while (*pathbuff)
+    {
+        if (*pathbuff == '/') // make windows-style path
+            *pathbuff = '\\';
+        pathbuff++;
+    }
+}
+
+#elif defined (__unix__)
+
+#include <sys/stat.h>
+#include <glob.h>		// glob(), globfree()
+
+void FS_FixPathSlashes(char* pathbuff)
+{
+    while (*pathbuff)
+    {
+        if (*pathbuff == '\\') // make unix-style path
+            *pathbuff = '/';
+        pathbuff++;
+    }
+}
+#endif
+
+struct FS_FINDDATA
+{
+    char* wildcard;
+
+#ifdef _WIN32
+    WIN32_FIND_DATAA	wfd;
+    HANDLE				fileHandle;
+#else
+    glob_t				gl;
+    int					index;
+    int					pathlen;
+#endif // _WIN32
+};
+
+char* strreplace(char** str, char* dst, char* replace)
+{
+	char* start, * tmp;
+	int n;
+
+	if ((start = strstr(*str, dst)) == 0) 
+		return(0);
+
+	n = (start - *str) + strlen(start + strlen(dst)) + strlen(replace) + 1;
+
+	tmp = (char*)malloc(n);
+
+	// left part
+	strncpy(tmp, *str, start - *str);
+
+	// replace (mid) part
+	strcpy(tmp + (start - *str), replace);
+
+	// right part
+	strcat(tmp, start + strlen(dst));
+
+	free(*str);
+
+	*str = tmp;
+
+	return tmp;
+}
+
+// opens directory for search props
+const char* FS_FindFirst(const char* wildcard, FS_FINDDATA** findData)
+{
+	assert(findData != nullptr);
+
+	if (findData == nullptr)
+		return nullptr;
+
+	FS_FINDDATA* newFind = new FS_FINDDATA;
+	*findData = newFind;
+
+	newFind->wildcard = (char*)malloc(strlen(wildcard) + 1);
+	strcpy(newFind->wildcard, wildcard);
+	FS_FixPathSlashes(newFind->wildcard);
+
+#ifndef _WIN32
+	strreplace(&newFind->wildcard, "*.*", "*");
+#endif
+
+#ifdef _WIN32
+	newFind->fileHandle = ::FindFirstFileA(newFind->wildcard, &newFind->wfd);
+
+	if (newFind->fileHandle != INVALID_HANDLE_VALUE)
+		return newFind->wfd.cFileName;
+#else // POSIX
+	newFind->index = -1;
+
+	if (glob(newFind->wildcard, 0, NULL, &newFind->gl) == 0 && newFind->gl.gl_pathc > 0)
+	{
+		newFind->pathlen = strchr(newFind->wildcard, '.') - newFind->wildcard;
+		newFind->index = 0;
+		return newFind->gl.gl_pathv[newFind->index] + newFind->pathlen;
+	}
+#endif // _WIN32
+
+	// delete if no luck
+	FS_FindClose(newFind);
+
+	return nullptr;
+}
+
+const char* FS_FindNext(FS_FINDDATA* findData)
+{
+	if (!findData)
+		return nullptr;
+
+#ifdef _WIN32
+	if (!::FindNextFileA(findData->fileHandle, &findData->wfd))
+		return nullptr;
+#else
+	if (findData->index < 0 || findData->index >= findData->gl.gl_pathc)
+		return nullptr;
+#endif // _WIN32
+
+#ifdef _WIN32
+	return findData->wfd.cFileName;
+#else
+	findData->index++;
+	return findData->gl.gl_pathv[findData->index] + findData->pathlen;
+#endif // _WIN32
+}
+
+void FS_FindClose(FS_FINDDATA* findData)
+{
+	if (!findData)
+		return;
+
+#ifdef _WIN32
+	if(findData->fileHandle = INVALID_HANDLE_VALUE)
+		FindClose(findData->fileHandle);
+#else
+	if (findData->index >= 0)
+		globfree(&findData->gl);
+#endif // _WIN32
+	delete findData;
+}
+
+bool FS_FindIsDirectory(FS_FINDDATA* findData)
+{
+	if (!findData)
+		return false;
+
+#ifdef _WIN32
+	return (findData->wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
+#else
+	struct stat st;
+
+	if (stat(findData->gl.gl_pathv[findData->index], &st) == 0)
+	{
+		return (st.st_mode & S_IFDIR) > 0;
+	}
+
+	return false;
+#endif // _WIN32
+}

src_rebuild/utils/fs.h

@@ -0,0 +1,24 @@
+#ifndef FS_H
+#define FS_H
+
+#ifdef _WIN32
+#include <direct.h>
+#define HOME_ENV "USERPROFILE"
+
+#elif defined (__unix__)
+#include <sys/stat.h>
+#define HOME_ENV "HOME"
+
+#define _mkdir(str)				mkdir(str, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH)
+#endif
+
+struct FS_FINDDATA;
+
+void FS_FixPathSlashes(char* pathbuff);
+
+const char* FS_FindFirst(const char* wildcard, FS_FINDDATA** findData);
+const char* FS_FindNext(FS_FINDDATA* findData);
+void		FS_FindClose(FS_FINDDATA* findData);
+bool		FS_FindIsDirectory(FS_FINDDATA* findData);
+
+#endif