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ENV: protect against environment being reset

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We cannot really recover from this, but at least we'll provide a clearer
error message than trying to call `exec` with an empty string.
This commit is contained in:
Martin Afanasjew 2016-02-04 14:46:31 +01:00
parent f9efa18be1
commit 5f049637d9
2 changed files with 10 additions and 1 deletions
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6
Library/ENV/4.3/cc
View File

@ -2,6 +2,11 @@
# Make sure this shim uses the same Ruby interpreter that is used by Homebrew.
unset RUBYLIB
unset RUBYOPT
if [ -z "$HOMEBREW_RUBY_PATH" ]
then
echo "${0##*/}: The build tool has reset ENV; --env=std required." >&2
exit 1
fi
exec "$HOMEBREW_RUBY_PATH" -x "$0" "$@"
#!/usr/bin/env ruby -W0
@ -308,7 +313,6 @@ end
if __FILE__ == $PROGRAM_NAME
##################################################################### sanity
abort "The build-tool has reset ENV. --env=std required." unless ENV["HOMEBREW_BREW_FILE"]
if (cc = ENV["HOMEBREW_CC"]).nil? || cc.empty? || cc == "cc"
# those values are not allowed

5
Library/ENV/scm/git
View File

@ -2,6 +2,11 @@
# Make sure this shim uses the same Ruby interpreter that is used by Homebrew.
unset RUBYLIB
unset RUBYOPT
if [ -z "$HOMEBREW_RUBY_PATH" ]
then
echo "${0##*/}: The build tool has reset ENV; --env=std required." >&2
exit 1
fi
exec "$HOMEBREW_RUBY_PATH" -x "$0" "$@"
#!/usr/bin/env ruby -W0