POSIX 文件"."为别名导致"CFURLGetFSRef was passed this URL which has no scheme"警告

Question

我正在使用Araxis提供的Applescripts，以便我可以使用Merge来处理我的"git diff HEAD"命令。

但是，自从升级到 Mountain Lion 以来，每次运行该命令时，我都会收到警告：

CFURLGetFSRef was passed this URL which has no scheme 
(the URL may not work with other CFURL routines): .

在脚本中，似乎导致问题的是

set _file2 to (POSIX path of (POSIX file "." as alias)) & _file2

当我对路径进行硬编码而不是使用"."时，警告消失了。我已经尝试了预处理file:///，但POSIX path of正在考虑其中一个斜杠作为转义字符，因此路径变得file:/Users/...，然后生成具有未知架构的错误（因为第二个斜杠已被删除）。所以，我的问题是，获取当前位置POSIX file的正确方法是什么（现在，在Mountain Lion中）？

添加完整脚本

#!/usr/bin/osascript
# This script is required to reorder the parameters sent by Git, so that they may be passed into the Merge Applescript API
on run args
  tell application "Araxis Merge"
    set _file1 to item 2 of args as text
    set _file2 to item 5 of args as text  
    if not _file1 starts with "/"
      set _file1 to (POSIX path of (POSIX file "." as alias)) & _file1
    end if
    if not _file2 starts with "/"
      set _file2 to (POSIX path of (POSIX file "." as alias)) & _file2
    end if

    set _document to compare {_file1, _file2}
    tell _document
      activate
    end tell
    repeat while exists _document
      delay 1
    end repeat
  end tell
end run

工作解决方案（谢谢@adayzdone）

#!/usr/bin/osascript
# This script is required to reorder the parameters sent by Git, so that they may be passed into the Merge Applescript API
on run args
  tell application "Araxis Merge"
    set _file1 to item 2 of args as text
    set _file2 to item 5 of args as text  
    if not _file1 starts with "/"
      set _file1 to (POSIX path of (POSIX file (do shell script "pwd") as alias)) & _file1
    end if
    if not _file2 starts with "/"
      set _file2 to (POSIX path of (POSIX file (do shell script "pwd") as alias)) & _file2
    end if
    set _document to compare {_file1, _file2}
    tell _document
      activate
    end tell
    repeat while exists _document
      delay 1
    end repeat
  end tell
end run

Answer 1

osascript 每次在 10.8 上将相对路径转换为别名时都会显示警告。

$ touch test.txt
$ osascript -e 'POSIX file "test.txt" as alias'
2012-12-19 09:43:49.300 osascript[16581:707] CFURLGetFSRef was passed this URL which has no scheme (the URL may not work with other CFURL routines): test.txt
alias HD:private:tmp:test.txt

这是转换路径的另一种方法：

osa() {
    osascript - "$PWD" "$@" <<'END'
on run argv
repeat with f in items 2 thru -1 of argv
if f does not start with "/" then set f to item 1 of argv & "/" & f
posix file f as alias
end
end
END
}
osa ~/Documents/ 1.txt

您也可以重定向标准。

osa() {
    osascript - "$@" <<END 2> /dev/null
on run argv
POSIX file (item 1 of argv) as alias
end
END
}
osa test.txt

Answer 2

我需要的是 shell 当前目录的路径，其中 命令正在运行

这对你有用吗？

set xxx to do shell script "pwd"