防止批处理文件中 for 循环的扩展:

防止批处理文件中 for 循环的扩展:

尝试构建一个用于查看 TFS 变更集的命令行工具。目前我有这个:

rem I know there's redundancy here, but don't care for now
set /A curr=%1
set /A prev=%curr%
set /A prev-=1

for /f "tokens=2" %g in ('tf changeset /noprompt %curr%') do tf diff /noprompt /format:unified /version:C%prev%~C%curr% %g

结果如下:

g:\>tfdiffchangeset.bat 2458
currunified was unexpected at this time.

我甚至不确定为什么:会变成“curr”,但如果我删除/format,/version 中也会发生同样的事情。

其次,如果我只是用空格替换 :'s 并假设我稍后会处理它,我就会收到此错误

g:\>tfdiffchangeset.bat 2458
The following usage of the path operator in batch-parameter
substitution is invalid: %~C%curr% %g

For valid formats type CALL /? or FOR /?
The syntax of the command is incorrect.

是时候编写 tfdiffchangeset.pl 了吗?

最终版本:

@ECHO off

set /A CURR=%1
rem Note - just using one changeset less doesn't necessarily work, because branches also use the same changeset numbers
set /A PREV=%CURR%-1

echo diffs for %CURR%

tf changeset /noprompt %CURR%

for /f "tokens=2" %%g in ('tf changeset /noprompt %CURR%') do tf diff /noprompt /format:unified /version:"C%PREV%~C%CURR%" %%g

答案1

尝试:

for /f "tokens=2" %%g in ('tf changeset /noprompt %curr%') do tf diff /noprompt /format:unified /version:C%prev%~C%curr% %%g

HELP FOR

要在批处理程序中使用 FOR 命令,请指定 %%variable 而不是
%variable。变量名区分大小写,因此 %i
与 %I 不同。

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