Crash when using --config and --path with a Swift file

[marcelofabri]

Probably introduced on #1644. Reported by @valeriomazzeo on https://github.com/ashfurrow/danger-swiftlint/issues/49.

$ swiftlint lint --path foo.swift --config .swiftlint.yml
fatal error: Could not read configuration file at path '/Users/marcelofabri/dev/foo.swift/.swiftlint.yml': file /tmp/swiftlint-20170703-13452-ik99jk/Source/SwiftLintFramework/Models/Configuration.swift, line 167
/Users/marcelofabri/dev/foo.swift/.swiftlint.yml:File not found.
[1]    51731 illegal hardware instruction  swiftlint lint --path foo.swift --config .swiftlint.yml

[marcelofabri]

A current workaround is to provide an absolute path for --config.

[Sega-Zero]

Still having that issue on 0.22.0.

$ swiftlint lint --quiet --path ./App/ --config ./App/.swiftlint.yml
/Users/sega-zero/projects/App/App/.swiftlint.yml:File not found.
fatal error: Could not read configuration file at path '/Users/sega-zero/projects/App/App/.swiftlint.yml': file /Users/marcelofabri/projetos/SwiftLint/Source/SwiftLintFramework/Models/Configuration.swift, line 156
Illegal instruction: 4

@marcelofabri, danger-swiftlint still doesn't work because of it

[valeriomazzeo]

Still not working

[jpsim]

File new issues with steps to reproduce please.