Module: SimpleCov::CLI::Git

Extended by:
Git
Included in:
Git
Defined in:
lib/simplecov/cli/git.rb

Overview

The git plumbing the change-aware subcommands share: safe capture, the repository toplevel, ref hygiene, and the default base ref.

Instance Method Summary collapse

Instance Method Details

#capture(*argv) ⇒ Object

[stdout, first stderr line, success]. A spawn failure reads as an unsuccessful run whose stdout is nil, so callers can tell "git ran and refused" from "git never ran".



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# File 'lib/simplecov/cli/git.rb', line 15

def capture(*argv)
  stdout, stderr, status = Open3.capture3("git", *argv)
  [stdout, stderr.lines.first.to_s.strip, status.success?]
rescue => e
  [nil, e.message, false]
end

#default_base ⇒ Object

The branch origin's HEAD points at, so master and trunk repositories work bare, falling back to main where no origin HEAD is recorded.



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# File 'lib/simplecov/cli/git.rb', line 35

def default_base
  stdout, _detail, success = capture("symbolic-ref", "--short", "refs/remotes/origin/HEAD")
  success ? (_ = stdout).chomp.delete_prefix("origin/") : "main"
end

#option_like_ref?(ref) ⇒ Boolean

A git ref can never begin with "-", so one that does would be read by git as an option instead of a revision.

Returns:

  • (Boolean) 


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# File 'lib/simplecov/cli/git.rb', line 29

def option_like_ref?(ref)
  ref.start_with?("-")
end

#toplevel ⇒ Object 



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# File 'lib/simplecov/cli/git.rb', line 22

def toplevel
  stdout, _detail, success = capture("rev-parse", "--show-toplevel")
  (_ = stdout).chomp if success
end