Question

注意：来自Java / Closure Compiler的实际错误来自中缺少的t - js-ou t putfile <！/ H3>

我有这个PowerShell脚本：

cls
$jsFiles = @();

Get-ChildItem | Where {$_.PsIsContainer} | Foreach {
    $dir = $_.FullName;
    $jsFile = $dir + "\" + $_.Name + ".js";
    if (Test-Path ($jsFile)) {
        $jsFiles += $jsFile;
    }
}

$wd = [System.IO.Directory]::GetCurrentDirectory();

# Build Closure Compiler command line call
$cmd = @("-jar $wd\..\ClosureCompiler\compiler.jar");

Foreach ($file in $jsFiles) {
    # Both insert a newline!

    $cmd += "--js $file";
    #$cmd = "$cmd --js $file";
}


$cmd = "$cmd --js_ouput_file $wd\all.js";

Invoke-Expression "java.exe $cmd"

问题是每个+=或$cmd = "$cmd str"来电都会插入换行符！

Echoargs给了我这个输出：

Arg 0 is <-jar>
Arg 1 is <S:\ome\Path\compiler.jar>
Arg 2 is <--js>
Arg 3 is <S:\ome\Path\script1.js>
Arg 4 is <--js>
Arg 5 is <S:\ome\Path\script2.js>
...
Arg 98 is <--js_ouput_file>
Arg 99 is <S:\ome\Path\all.js>

（可能）因此，我从java.exe得到了一些错误：

java.exe : "--js_ouput_file" is not a valid option
At line:1 char:1
+ java.exe -jar ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: ("--js_ouput_file" is not a valid option:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError

Answer 1

尝试重写为更简单的版本：

cls

$wd = [System.IO.Directory]::GetCurrentDirectory();

# Build Closure Compiler command line call
$cmd = "-jar $wd\..\ClosureCompiler\compiler.jar";

$arrayOfJs = Get-ChildItem -Recurse -Include "*.js" | % { "--js $_.FullName" };

$cmd += [string]::Join(" ", $arrayOfJs);

Invoke-Expression "java $cmd --js_ouput_file $wd\all.js"

Answer 2

当你这样做时

$cmd = @(...);

您正在创建一个数组，因此其后面的+=将元素附加到数组，而不是字符串连接。只需将其作为字符串，或在使用$ cmd之前。做类似的事情：

$cmd -join " "

将元素连接到一个以空格分隔的字符串中。默认情况下，当数组被强制转换为字符串时，您将在元素之间看到新的行。

PowerShell字符串连接提供换行符

2 个答案: