Why task create empty file? about gulp-xgettext

[JustBlackBird]

Most likely it's because you set wrong path for source files. Look at the second line of your code:

return gulp.src('/js/*.js')

Notice the leading slash in the path. All other code works just fine at my test environment.

[JustBlackBird]

One more thing: you probably should set language option to JavaScript like this:

gulp.task('generate-po', function() {
    return gulp.src('./js/*.js')
        .pipe(xgettext({
            language: 'JavaScript',
            keywords: [
                {name: 'pojs._'}
            ],
            headers: {
                Language: 'en_EN'
            }
        }))
        .pipe(concatPo('messages.po'))
        .pipe(gulp.dest('./'));
});

[JustBlackBird]

Nevertheless once I've replaced a path with relative one and set language option I cannot reproduce the problem regardless of using concatPo plugin.

Does concatPo stand for gulp-concat-po plugin?

[makito]

Yes it is

[JustBlackBird]

Well, it's strange. My gulpfile is:

var gulp = require('gulp'),
    concatPo = require('gulp-concat-po'),
    xgettext = require('gulp-xgettext');

gulp.task('generate-po', function() {
    return gulp.src('./js/*.js')
        .pipe(xgettext({
            language: 'JavaScript',
            keywords: [
                {name: 'pojs._'}
            ],
            headers: {
                Language: 'en_EN'
            }
        }))
        .pipe(concatPo('messages.po'))
        .pipe(gulp.dest('./'));
});

and contents of ./js/test.js are:

var someText = pojs._('Reset');

Everything works are expected.

[makito]

But if I remove concatenation plugin, i get all files for which a task runs -> task view all files, and concatenation is not to blame.
Ok, I'm tray to replace path to relative, and write result later. Thanks.

[JustBlackBird]

Are the contests of those files valid? I mean are they really .po files with extracted string or what?

[makito]

Yes it is, all generated .po files is valid, but empty

[JustBlackBird]

Ok. Does setting language: 'JavaScript' help?

[JustBlackBird]

It seems that the problem is already solved. I'll reopen the issue if it does not :)