起因

對於一個go專案，如果main package包含多個檔案，則需要執行go run .這樣的命令。在vscode中，code-runner預設的go檔案執行命令在defaultSettings.json中如下：

"code-runner.executorMap": {
  "go": "go run",
}

實際執行時，會變成`go run "$fullFileName"，此時main package無法識別多個.go檔案的內容。

操作

好，那就在settings.json裡，把他改成："go": "go run ."，執行！

確實可以正常運行了，但是末尾怎麼會自動帶上$fullFileName

// code from https://github.com/formulahendry/vscode-code-runner
private async getFinalCommandToRunCodeFile(executor: string, appendFile: boolean = true): Promise<string> {
    let cmd = executor;

    if (this._codeFile) {
        const codeFileDir = this.getCodeFileDir();
        const pythonPath = cmd.includes("$pythonPath") ? await Utility.getPythonPath(this._document) : Constants.python;
        const placeholders: Array<{ regex: RegExp, replaceValue: string }> = [
            // A placeholder that has to be replaced by the path of the folder opened in VS Code
            // If no folder is opened, replace with the directory of the code file
            { regex: /\$workspaceRoot/g, replaceValue: this.getWorkspaceRoot(codeFileDir) },
            // A placeholder that has to be replaced by the code file name without its extension
            { regex: /\$fileNameWithoutExt/g, replaceValue: this.getCodeFileWithoutDirAndExt() },
            // A placeholder that has to be replaced by the full code file name
            { regex: /\$fullFileName/g, replaceValue: this.quoteFileName(this._codeFile) },
            // A placeholder that has to be replaced by the code file name without the directory
            { regex: /\$fileName/g, replaceValue: this.getCodeBaseFile() },
            // A placeholder that has to be replaced by the drive letter of the code file (Windows only)
            { regex: /\$driveLetter/g, replaceValue: this.getDriveLetter() },
            // A placeholder that has to be replaced by the directory of the code file without a trailing slash
            { regex: /\$dirWithoutTrailingSlash/g, replaceValue: this.quoteFileName(this.getCodeFileDirWithoutTrailingSlash()) },
            // A placeholder that has to be replaced by the directory of the code file
            { regex: /\$dir/g, replaceValue: this.quoteFileName(codeFileDir) },
            // A placeholder that has to be replaced by the path of Python interpreter
            { regex: /\$pythonPath/g, replaceValue: pythonPath },
        ];

        placeholders.forEach((placeholder) => {
            cmd = cmd.replace(placeholder.regex, placeholder.replaceValue);
        });
    }

    return (cmd !== executor ? cmd : executor + (appendFile ? " " + this.quoteFileName(this._codeFile) : ""));
}
 

對於go專案，執行go run .需要在根目錄執行，有時候編輯完其他go檔案，需要先切換回根目錄的檔案再用code-runner，不太方便。所以把executorMap修改為："go": "cd $workspaceRoot && go run ."即可。