diff options
| -rw-r--r-- | Library/Homebrew/formula_installer.rb | 17 | ||||
| -rw-r--r-- | Library/Homebrew/test/cmd/install_spec.rb | 2 |
2 files changed, 14 insertions, 5 deletions
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb index 2153e7671..1d8346f13 100644 --- a/Library/Homebrew/formula_installer.rb +++ b/Library/Homebrew/formula_installer.rb @@ -217,11 +217,20 @@ class FormulaInstaller # function but after instantiating this class so that it can avoid having to # relink the active keg if possible (because it is slow). if formula.linked_keg.directory? - # some other version is already installed *and* linked - raise CannotInstallFormulaError, <<-EOS.undent - #{formula.name}-#{formula.linked_keg.resolved_path.basename} already installed - To install this version, first `brew unlink #{formula.name}` + message = <<-EOS.undent + #{formula.name} #{formula.linked_keg.resolved_path.basename} is already installed EOS + message += if formula.outdated? && !formula.head? + <<-EOS.undent + To upgrade to #{formula.version}, run `brew upgrade #{formula.name}` + EOS + else + # some other version is already installed *and* linked + <<-EOS.undent + To install #{formula.version}, first run `brew unlink #{formula.name}` + EOS + end + raise CannotInstallFormulaError, message end check_conflicts diff --git a/Library/Homebrew/test/cmd/install_spec.rb b/Library/Homebrew/test/cmd/install_spec.rb index 034bdd53f..b819c17be 100644 --- a/Library/Homebrew/test/cmd/install_spec.rb +++ b/Library/Homebrew/test/cmd/install_spec.rb @@ -77,7 +77,7 @@ describe "brew install", :integration_test do EOS expect { brew "install", "testball1" } - .to output(/first `brew unlink testball1`/).to_stderr + .to output(/`brew upgrade testball1`/).to_stderr .and not_to_output.to_stdout .and be_a_failure |