added path_getUserDir, dir_createParent

README.md

@@ -19,6 +19,8 @@ C library with collections, strings, exceptions, io...
     cbuild build_static_lib_dbg
     ```
 
+6. If you use tlibc as static library, add `LINKER_LIBS` from tlibc `project.config` to your project.
+
 
 ## Usage
 ```c

include/tlibc/filesystem.h

@@ -39,6 +39,8 @@ str path_dirname(str path);
 /// @return pointer to a segment of path.data or path itself if no path_sep has been found
 str path_basename(str path, bool remove_ext);
 
+/// @return heap-allocated string
+Result(char*) path_getUserDir();
 
 //////////////////////////////////////////////////////////////////////////////
 //                                   FILE                                   //
@@ -145,8 +147,15 @@ Result(void) file_readWholeText(FILE* f, str* out_str);
 //                                DIRECTORY                                 //
 //////////////////////////////////////////////////////////////////////////////
 
+/// @return true if directory exists or `path` is null or empty or '.' or './'
 bool dir_exists(cstr path);
 
 /// @brief creates directories specified in path recursively
+/// EXAMPLE: dir_createParent("a/b/c") -> creates "a", "a/b", "a/b/c"
 /// @return false if directory was present already, true if it has been created 
 Result(bool) dir_create(cstr path);
+
+/// @brief creates directories except the last part of path
+/// EXAMPLE: dir_createParent("a/b/c") -> creates "a", "a/b"
+/// @return false if directory was present already, true if it has been created
+Result(bool) dir_createParent(cstr path);

include/tlibc/string/str.h

@@ -16,10 +16,10 @@ typedef struct str {
 /*
 USAGE:
 str s = STR("something");
-printf(FMT_str"\n", str_expand(s));
+printf(FMT_str"\n", str_unwrap(s));
 */
 #define FMT_str "%.*s"
-#define str_expand(S) (S).len, (S).data
+#define str_unwrap(S) (S).len, (S).data
 
 /// creates str from a string literal
 #define STR(LITERAL) str_construct(LITERAL, ARRAY_LEN(LITERAL) - 1, true)
@@ -59,7 +59,7 @@ static inline str Array_u8_castTo_str(Array(u8) a, bool isZeroTerminated) {
 
 static const str str_null = str_construct(NULL, 0, 0);
 
-/// copies src content to new string and adds \0 at the end
+/// copy str data to new str and add \0 at the end
 str str_copy(const str self);
 
 /// compares two strings, NullPtr-friendly

project.config

@@ -43,7 +43,7 @@ case "$OS" in
         EXEC_FILE="$PROJECT.exe"
         SHARED_LIB_FILE="$PROJECT.dll"
         INCLUDE="$INCLUDE "
-        LINKER_LIBS=""
+        LINKER_LIBS="-luuid"
         ;;
     LINUX)
         EXEC_FILE="$PROJECT"

src/filesystem/dir.c

@@ -1,6 +1,9 @@
 #include "internal.h"
 
 bool dir_exists(cstr path){
+    if(path == NULL || path[0] == 0)
+        return true;
+
     if(path[0]=='.'){
         if(path[1]==0 || (path[1]==path_sep && path[1]==0)) 
             return true; // dir . or ./ always exists
@@ -23,13 +26,12 @@ bool dir_exists(cstr path){
 
 Result(bool) dir_create(cstr path){
     Deferral(4);
-    if (dir_exists(path)){
+
+    if (path == NULL || path[0] == 0 || dir_exists(path)){
         Return RESULT_VALUE(i, false);
     }
     
-    char* parentDir= str_copy(path_dirname(str_from_cstr((void*)path))).data;
-    Defer(free(parentDir));
-    try_void(dir_create(parentDir));
+    try_void(dir_createParent(path));
 
 #if TLIBC_FS_USE_WINDOWS_H
     if(!CreateDirectory(path, NULL))
@@ -47,3 +49,18 @@ Result(bool) dir_create(cstr path){
 
     Return RESULT_VALUE(i, true);
 }
+
+Result(bool) dir_createParent(cstr path){
+    Deferral(4);
+    
+    str parent_dir_str = path_dirname(str_from_cstr((void*)path));
+    if(parent_dir_str.len == 0){
+        Return RESULT_VALUE(i, false);
+    }
+    
+    char* parent_dir_cstr = str_copy(parent_dir_str).data;
+    Defer(free(parent_dir_cstr));
+    
+    try(bool result, i, dir_create(parent_dir_cstr));
+    Return RESULT_VALUE(i, result);
+}

src/filesystem/path.c

@@ -1,4 +1,10 @@
-#include "tlibc/filesystem.h"
+#include "internal.h"
+
+#if TLIBC_FS_USE_WINDOWS_H
+#include <knownfolders.h>
+#include <shlobj.h>
+#else
+#endif
 
 str path_dirname(str path){
     if(path.len == 0)
@@ -43,3 +49,23 @@ str path_basename(str path, bool remove_ext){
     }
     return path;
 }
+
+Result(char*) path_getUserDir(){
+#if TLIBC_FS_USE_WINDOWS_H
+    PWSTR wpath = NULL;
+    HRESULT reslut = SHGetKnownFolderPath(&FOLDERID_Profile, 0, NULL, &wpath);
+    if(!SUCCEEDED(reslut)){
+        return RESULT_ERROR_LITERAL("can't get user directory by SHGetKnownFolderPath()");
+    }
+    size_t char_len = wcslen(wpath) * 4 + 1;
+    char* path = (char*)malloc(char_len);
+    wcstombs(path, wpath, char_len);
+    return RESULT_VALUE(p, path);
+#else
+    const char *home = getenv("HOME");
+    if(home == NULL){
+        return RESULT_ERROR_LITERAL("can't get user directory by getenv(\"HOME\")");
+    }
+    return RESULT_VALUE(p, cstr_copy(home));
+#endif
+}

src/string/str.c

@@ -2,11 +2,10 @@
 #include "tlibc/string/StringBuilder.h"
 
 str str_copy(const str self){
-    if(self.data == NULL || self.len == 0)
-        return self;
-    
     str copy = str_construct((char*)malloc(self.len + 1), self.len, true);
-    memcpy(copy.data, self.data, self.len);
+    if(self.len != 0){
+        memcpy(copy.data, self.data, self.len);
+    }
     copy.data[copy.len] = '\0';
     return copy;
 }