Maxim Belkin 15dbb0be58 utils/ruby.sh: simplify and fix Ruby-related logic
General:
- Rename `unusable_ruby` to `need_vendored_ruby` (due to code changes).

**`setup-ruby-path`** function:
- Move `-z "$HOMEBREW_RUBY_PATH"` and `-n "$HOMEBREW_FORCE_VENDOR_RUBY"` checks to `need_vendored_ruby`.

**`need_vendored_ruby`** function:
- Check `HOMEBREW_FORCE_VENDOR_RUBY` first so that it's respected even
  on Macs that are "new enough" (`HOMEBREW_MACOS_SYSTEM_RUBY_NEW_ENOUGH` is set).
- Don't check `-n $HOMEBREW_RUBY_PATH` because it is implicitly tested
  by `test_ruby`.
- Remove (now-) redundant `-z $HOMEBREW_FORCE_VENDOR_RUBY` check as it is
  tested earlier in the conditional.
2020-12-08 18:05:28 -06:00

109 lines
3.0 KiB
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export HOMEBREW_REQUIRED_RUBY_VERSION=2.6.3
test_ruby () {
if [[ ! -x $1 ]]
then
return 1
fi
"$1" --enable-frozen-string-literal --disable=gems,did_you_mean,rubyopt \
"$HOMEBREW_LIBRARY/Homebrew/utils/ruby_check_version_script.rb" \
"$HOMEBREW_REQUIRED_RUBY_VERSION" 2>/dev/null
}
find_ruby() {
if [[ -n "$HOMEBREW_MACOS" ]]
then
echo "/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby"
else
IFS=$'\n' # Do word splitting on new lines only
for ruby_exec in $(which -a ruby) $(PATH=$HOMEBREW_PATH which -a ruby)
do
if test_ruby "$ruby_exec"; then
echo "$ruby_exec"
break
fi
done
IFS=$' \t\n' # Restore IFS to its default value
fi
}
need_vendored_ruby() {
if [[ -n "$HOMEBREW_FORCE_VENDOR_RUBY" ]]
then
return 0
elif [[ -n "$HOMEBREW_MACOS_SYSTEM_RUBY_NEW_ENOUGH" ]]
then
return 1
elif [[ -z "$HOMEBREW_MACOS" ]] && test_ruby "$HOMEBREW_RUBY_PATH"
then
return 1
else
return 0
fi
}
setup-ruby-path() {
local vendor_dir
local vendor_ruby_root
local vendor_ruby_path
local vendor_ruby_terminfo
local vendor_ruby_latest_version
local vendor_ruby_current_version
# When bumping check if HOMEBREW_MACOS_SYSTEM_RUBY_NEW_ENOUGH (in brew.sh)
# also needs to be changed.
local ruby_exec
local upgrade_fail
local install_fail
if [[ -n $HOMEBREW_MACOS ]]
then
upgrade_fail="Failed to upgrade Homebrew Portable Ruby!"
install_fail="Failed to install Homebrew Portable Ruby (and your system version is too old)!"
else
local advice="
If there's no Homebrew Portable Ruby available for your processor:
- install Ruby $HOMEBREW_REQUIRED_RUBY_VERSION with your system package manager (or rbenv/ruby-build)
- make it first in your PATH
- try again
"
upgrade_fail="Failed to upgrade Homebrew Portable Ruby!$advice"
install_fail="Failed to install Homebrew Portable Ruby and cannot find another Ruby $HOMEBREW_REQUIRED_RUBY_VERSION!$advice"
fi
vendor_dir="$HOMEBREW_LIBRARY/Homebrew/vendor"
vendor_ruby_root="$vendor_dir/portable-ruby/current"
vendor_ruby_path="$vendor_ruby_root/bin/ruby"
vendor_ruby_terminfo="$vendor_ruby_root/share/terminfo"
vendor_ruby_latest_version=$(<"$vendor_dir/portable-ruby-version")
vendor_ruby_current_version=$(readlink "$vendor_ruby_root")
unset HOMEBREW_RUBY_PATH
if [[ "$HOMEBREW_COMMAND" == "vendor-install" ]]
then
return 0
fi
if [[ -x "$vendor_ruby_path" ]]
then
HOMEBREW_RUBY_PATH="$vendor_ruby_path"
TERMINFO_DIRS="$vendor_ruby_terminfo"
if [[ $vendor_ruby_current_version != "$vendor_ruby_latest_version" ]]
then
brew vendor-install ruby || odie "$upgrade_fail"
fi
else
HOMEBREW_RUBY_PATH=$(find_ruby)
if need_vendored_ruby
then
brew vendor-install ruby || odie "$install_fail"
HOMEBREW_RUBY_PATH="$vendor_ruby_path"
TERMINFO_DIRS="$vendor_ruby_terminfo"
fi
fi
export HOMEBREW_RUBY_PATH
[[ -n "$HOMEBREW_LINUX" && -n "$TERMINFO_DIRS" ]] && export TERMINFO_DIRS
}