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// Copyright (C) 2019 Yuanle Song <root@emacsos.com>
//
// This file is part of mbackup-for-windows.
//
// mbackup-for-windows is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// mbackup-for-windows is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along with
// mbackup-for-windows. If not, see <http://www.gnu.org/licenses/>.
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module Mbackup.Lib
open System
open System.Text.RegularExpressions
type Logger() =
let mutable level = Logger.DEBUG
static member DEBUG = 10
static member INFO = 20
static member WARNING = 30
static member ERROR = 40
static member LevelToString level =
match level with
| 10 -> "DEBUG"
| 20 -> "INFO"
| 30 -> "WARNING"
| 40 -> "ERROR"
| _ -> failwith (sprintf "Unknown log level: %d" level)
member this.Level = level
member this.LogMaybe level fmt =
let doAfter s =
if this.Level <= level then
let ts = DateTime.Now.ToString("s")
printf "%s %s %s\n" ts (Logger.LevelToString level) s
else
printf ""
Printf.ksprintf doAfter fmt
member this.SetLevel level =
this.Level = level
member this.Debug fmt = this.LogMaybe Logger.DEBUG fmt
member this.Info fmt = this.LogMaybe Logger.INFO fmt
member this.Warning fmt = this.LogMaybe Logger.WARNING fmt
member this.Error fmt = this.LogMaybe Logger.ERROR fmt
// append string s to list if pred is true
let appendWhen (pred: bool) (lst: string list) (s: string) = if pred then List.append lst [s] else lst
let getEnv (varName: string) = Environment.GetEnvironmentVariable varName
let setEnv (varName: string) (value: string) = Environment.SetEnvironmentVariable(varName, value)
let getEnvDefault (varName: string) (defaultValue: string) =
let value = Environment.GetEnvironmentVariable varName
match value with
| null -> defaultValue
| "" -> defaultValue
| _ -> value
// Convert windows path to Mingw64 path.
// Supported windows path: C:\foo, C:/foo, /c/foo
// MingwPath format: /cygdrive/c/foo
let pattern = Regex("^/([c-zC-Z])/", RegexOptions.None)
let result =
if pattern.IsMatch(windowsPath) then
"/cygdrive" + windowsPath
else
let pattern = Regex("^([c-zC-Z]):", RegexOptions.None)
if pattern.IsMatch(windowsPath) then
let result = windowsPath.Replace('\\', '/')
"/cygdrive/" + result.Substring(0, 1).ToLower() + result.Substring(2)
else
windowsPath
result
// Convert Mingw64 path to windows path.
// supported mingwPath format: /cygdrive/x/xxx
// return null if given path is not in this format.
let toWinPath (mingwPath: string) =
if mingwPath.StartsWith("/cygdrive/") then
let driveLetter = mingwPath.Substring("/cygdrive/".Length, 1).ToUpper()
let rest = mingwPath.Substring("/cygdrive/".Length + 1)
driveLetter + ":" + rest.Replace('/', '\\')
else
null
let ensureDir (path: string) = if path.EndsWith "/" then path else path + "/"
let ensureWinDir (path: string) = if path.EndsWith "\\" then path else path + "\\"