utf8 BOM is stripped from text files on upload

[lukasz-karolewski]

All files should be transferred as binaries.

i've discovered the problem as I tried to upload an installer. It has a list of files and their sha1 hashes generated during build. My installer was failing with the sha1 hash mismatch error and upon investigation I've confirmed that gulp-awspublish strips BOM from utf8 encoded text files.

[lukasz-karolewski]

i figured it out, it's actually gulp fault. Gulp depends on an ancient version of vinyl that strips BOM by default.

to fix the issue gulp.src should be replaced with:

var vinyl = require('vinyl-fs');
vinyl.src("files/*/", {stripBOM : false})

and then it will works as expected.

maybe you guys want to add it to readme?

[RichardOtvos]

Thanks for the investigation @kether667 !

I also looked into this and it seems like it won't be fixed in gulp3 (see: gulpjs/gulp#1557), but adding this to the Readme is a good idea!

I will add it and close this story once this is done.

[shadowmint]

Wow, this bit me as well; after loading a signed application using this plugin it failed validation because the BOM was altered on the upload.

Seriously nasty bug, and very difficult to track down.