ripgrep 0.3.0

on Rust Cargo

This is a new minor version release of ripgrep that includes two breaking
changes with lots of bug fixes and some new features and performance
improvements. Notably, if you had a problem with colors or piping on Windows
before, then that should now be fixed in this release.

BREAKING CHANGES:

• ripgrep now requires Rust 1.11 to compile. Previously, it could build on
  Rust 1.9. The cause of this was the move from
  Docopt to Clap
  for argument parsing.
• The -e/--regexp flag can no longer accept a pattern starting with a -.
  There are two work-arounds: rg -- -foo and rg [-]foo or rg -e [-]foo
  will all search for the same -foo pattern. The cause of this was the move
  from Docopt to Clap
  for argument parsing.
  This may get fixed in the
  future..

Performance improvements:

• PERF #33:
  ripgrep now performs similar to GNU grep on small corpora.
• PERF #136:
  ripgrep no longer slows down because of argument parsing when given a large
  argument list.

Feature enhancements:

• Added or improved file type filtering for Elixir.
• FEATURE #7:
  Add a -f/--file flag that causes ripgrep to read patterns from a file.
• FEATURE #51:
  Add a --colors flag that enables one to customize the colors used in
  ripgrep's output.
• FEATURE #138:
  Add a --files-without-match flag that shows only file paths that contain
  zero matches.
• FEATURE #230:
  Add completion files to the release (Bash, Fish and PowerShell).

Bug fixes:

• BUG #37:
  Use correct ANSI escape sequences when TERM=screen.linux.
• BUG #94:
  ripgrep now detects stdin on Windows automatically.
• BUG #117:
  Colors should now work correctly and automatically inside mintty.
• BUG #182:
  Colors should now work within Emacs. In particular, --color=always will
  emit colors regardless of the current environment.
• BUG #189:
  Show less content when running rg -h. The full help content can be
  accessed with rg --help.
• BUG #210:
  Support non-UTF-8 file names on Unix platforms.
• BUG #231:
  Switch from block buffering to line buffering.
• BUG #241:
  Some error messages weren't suppressed when --no-messages was used.