Initial commit

sys/apis/fs/linkfs.lua

@@ -0,0 +1,61 @@
+local linkfs = { }
+
+local methods = { 'exists', 'getFreeSpace', 'getSize', 
+  'isDir', 'isReadOnly', 'list', 'makeDir', 'open', 'getDrive' }
+
+for _,m in pairs(methods) do
+  linkfs[m] = function(node, dir, ...)
+    dir = dir:gsub(node.mountPoint, node.source, 1)
+    return fs[m](dir, ...)
+  end
+end
+
+function linkfs.mount(dir, source)
+  if not source then
+    error('Source is required')
+  end
+  source = fs.combine(source, '')
+  if fs.isDir(source) then
+    return {
+      source = source,
+      nodes = { },
+    }
+  end
+  return {
+    source = source
+  }  
+end
+
+function linkfs.copy(node, s, t)
+  s = s:gsub(node.mountPoint, node.source, 1)
+  t = t:gsub(node.mountPoint, node.source, 1)
+  return fs.copy(s, t)
+end
+
+function linkfs.delete(node, dir)
+  if dir == node.mountPoint then
+    fs.unmount(node.mountPoint)
+  else
+    dir = dir:gsub(node.mountPoint, node.source, 1)
+    return fs.delete(dir)
+  end
+end
+
+function linkfs.find(node, spec)
+  spec = spec:gsub(node.mountPoint, node.source, 1)
+
+  local list = fs.find(spec)
+  for k,f in ipairs(list) do
+    list[k] = f:gsub(node.source, node.mountPoint, 1)
+  end
+
+  return list
+end
+
+function linkfs.move(node, s, t)
+  s = s:gsub(node.mountPoint, node.source, 1)
+  t = t:gsub(node.mountPoint, node.source, 1)
+  return fs.move(s, t)
+end
+
+return linkfs