common.mk: uninstall

* common.mk (uninstall): uninstall installed file listed in
  $(INSTALLED_LIST) file.

* tool/rbuninstall.rb: simple uninstallation tool.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39339 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 51 insertions, 0 deletions

diff --git a/tool/rbuninstall.rb b/tool/rbuninstall.rb
new file mode 100755
index 0000000000..2d1612243f
--- /dev/null
+++ b/tool/rbuninstall.rb
@@ -0,0 +1,51 @@
+#! /usr/bin/ruby -nl
+BEGIN {
+  $dryrun = false
+  until ARGV.empty?
+    case ARGV[0]
+    when /\A--destdir=(.*)/
+      $destdir = $1
+    when /\A-n\z/
+      $dryrun = true
+    else
+      break
+    end
+    ARGV.shift
+  end
+  $dirs = []
+  $files = []
+}
+list = (/\/\z/ =~ $_ ? $dirs : $files)
+$_ = File.join($destdir, $_) if $destdir
+list << $_
+END {
+  status = true
+  if $dryrun
+    $files.each do |file|
+      puts "rm #{file}"
+    end
+    $dirs.reverse_each do |dir|
+      puts "rmdir #{dir}"
+    end
+  else
+    $files.each do |file|
+      begin
+        File.unlink(file)
+      rescue Errno::ENOENT
+      rescue
+        status = false
+        puts $!
+      end
+    end
+    $dirs.reverse_each do |dir|
+      begin
+        Dir.rmdir(dir)
+      rescue Errno::ENOENT, Errno::ENOTEMPTY
+      rescue
+        status = false
+        puts $!
+      end
+    end
+  end
+  exit(status)
+}