Mike McQuaid a02be9eea2 ENV: move to new paths. (#507)
Move some stuff formerly in `Library/ENV` around:
- Move `Library/ENV/$XCODE_VERSION` to `Library/Homebrew/env/super` as they are
  all superenv wrappers and all symlinks to the same version. We never needed
  the "separate shims for separate versions" functionality and it just adds
  confusion.
- Move `Library/ENV/pkgconfig` to `Library/Homebrew/env/pkgconfig` to get more
  things under `Library/Homebrew`
- Move `Library/ENV/scm` to `Library/scm` as these wrappers are not actually
  used by or related to superenv (or stdenv) in any way.
2016-07-15 19:03:45 +01:00

46 lines
1.1 KiB
Ruby

module Utils
def self.git_available?
return @git if instance_variable_defined?(:@git)
@git = quiet_system HOMEBREW_SHIMS_PATH/"scm/git", "--version"
end
def self.git_path
return unless git_available?
@git_path ||= Utils.popen_read(
HOMEBREW_SHIMS_PATH/"scm/git", "--homebrew=print-path"
).chuzzle
end
def self.git_version
return unless git_available?
@git_version ||= Utils.popen_read(
HOMEBREW_SHIMS_PATH/"scm/git", "--version"
).chomp[/git version (\d+(?:\.\d+)*)/, 1]
end
def self.ensure_git_installed!
return if git_available?
# we cannot install brewed git if homebrew/core is unavailable.
unless CoreTap.instance.installed?
raise "Git is unavailable"
end
begin
oh1 "Installing git"
safe_system HOMEBREW_BREW_FILE, "install", "git"
rescue
raise "Git is unavailable"
end
clear_git_available_cache
raise "Git is unavailable" unless git_available?
end
def self.clear_git_available_cache
remove_instance_variable(:@git) if instance_variable_defined?(:@git)
@git_path = nil
@git_version = nil
end
end