Skip UTF-8 BOM sequence when reading BUILD & .bzl files. #4551
Description
Description of the problem / feature request:
Unfortunately bazel does not support UTF-8 BOM sequences in BUILD files.
Output of bazel build ...:
C:\Users\Chebotarev_V\Documents\bazel-issues\utf-8-bom-support>bazel build ...
........................
ERROR: C:/users/chebotarev_v/documents/bazel-issues/utf-8-bom-support/BUILD:1:1: invalid character: 'я'
ERROR: C:/users/chebotarev_v/documents/bazel-issues/utf-8-bom-support/BUILD:1:2: invalid character: '╗'
ERROR: C:/users/chebotarev_v/documents/bazel-issues/utf-8-bom-support/BUILD:1:3: invalid character: '┐'
ERROR: package contains errors:
ERROR: error loading package '': Package '' contains errors
INFO: Elapsed time: 5.202s
FAILED: Build did NOT complete successfully (1 packages loaded)
Please find an example in my repository:
https://github.com/excitoon/bazel-issues/tree/master/utf-8-bom-support
Bugs: what's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.
bazel build ...
What operating system are you running Bazel on?
Windows 10 x64
What's the output of bazel info release?
Build label: 0.9.0
Build target: bazel-out/x64_windows-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Tue Dec 19 09:32:04 2017 (1513675924)
Build timestamp: 1513675924
Build timestamp as int: 1513675924
Have you found anything relevant by searching the web?
Nothing.