I am using gulp and gulp-shell. How do I save output to a file (created by gulp) ?

return gulp.src('.')
    .pipe(shell([
        'poser install --prefer-source'
    ]));

I am using gulp and gulp-shell. How do I save output to a file (created by gulp) ?

return gulp.src('.')
    .pipe(shell([
        'poser install --prefer-source'
    ]));

• javascript
• gulp

Share Improve this question Follow edited Nov 13, 2014 at 21:12 Sean Mickey 7,72622 gold badges3434 silver badges5858 bronze badges asked Nov 13, 2014 at 21:05 ThomasThomas 54511 gold badge1313 silver badges2222 bronze badges

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4 Answers 4

Sorted by: Reset to default 3

To achieve this I use gulp-exec.

gulp.task("git_log", [], function(){
    var options = {
        continueOnError: false, // default = false, true means don't emit error event
        pipeStdout: true, // default = false, true means stdout is written to file.contents
        customTemplatingThing: "test" // content passed to gutil.template()
    };
    var reportOptions = {
        err: false, // default = true, false means don't write err
        stderr: true, // default = true, false means don't write stderr
        stdout: false // default = true, false means don't write stdout
    };
    return gulp.src("somefile.txt")
        .pipe(exec("pwd", options))
        .pipe(exec.reporter(reportOptions))
        .pipe(gulp.dest('build/'));
});

continue with .pipe(gulp.dest('output.file')).

Gulp Shell passes files not the output of the mands it runs.

A quick and dirty solution — that is not windows friendly nor gulp based — would be to simply pass the output of the shell mand to a file within the mand itself:

return gulp.src('.')
  .pipe(shell([
    'poser install --prefer-source > poser-log.txt'
  ]));

This is obviously only suitable for *nix environments, and doesn't scale well for capturing the output of multiple mands (although you could just append the output from all those mands to the same file).

You could better use run to do this.

gulp.task 'run',->
run ("echo Hello!")
.exec()
.pipe (gulp.dest "G:\\new.txt")

Install needed plugins for this like gulp-run and gulp-exec.