add os.absolutePath

nim-lang · Jul 5, 2018 · 4e4ff34 · 4e4ff34
1 parent a1457bf
commit 4e4ff34
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/lib/pure/os.nim b/lib/pure/os.nim
@@ -296,6 +296,17 @@ proc setCurrentDir*(newDir: string) {.inline, tags: [].} =
   else:
     if chdir(newDir) != 0'i32: raiseOSError(osLastError())
 
+proc absolutePath*(path: string, base: string = nil):string=
+  if isAbsolute(path): return path
+  let base2 = if base == nil: getCurrentDir() else: base
+  return joinPath(base2, path)
+
+when isMainModule:
+  assert absolutePath("a", "b") == "b" / "a"
+  assert absolutePath("a", "b/") == "b" / "a"
+  when defined(Posix):
+    assert absolutePath("/a", "b/") == "/a"
+
 proc expandFilename*(filename: string): string {.rtl, extern: "nos$1",
   tags: [ReadDirEffect].} =
   ## Returns the full (`absolute`:idx:) path of the file `filename`,