* common.mk (mini): portable target to build miniruby

* common.mk (bisect): run git-bisect with miniruby

* common.mk (bisect-ruby): run git-bisect with ruby

* tool/bisect.sh: script for git-bisect

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42436 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 59 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 0b426515e0..8e6fde683f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Thu Aug  8 14:50:36 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (mini): portable target to build miniruby
+
+	* common.mk (bisect): run git-bisect with miniruby
+
+	* common.mk (bisect-ruby): run git-bisect with ruby
+
+	* tool/bisect.sh: script for git-bisect
+
 Thu Aug  8 12:11:43 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/webrick/test_httpresponse.rb (test_send_body_*_chunked): these
diff --git a/common.mk b/common.mk
index 87bd784cd3..4e36d3d1f9 100644
--- a/common.mk
+++ b/common.mk
@@ -211,6 +211,7 @@ Doxyfile: $(srcdir)/template/Doxyfile.tmpl $(PREP) $(srcdir)/tool/generic_erb.rb
 
 program: showflags $(PROGRAM)
 wprogram: showflags $(WPROGRAM)
+mini: PHONY miniruby$(EXEEXT)
 
 $(PROGRAM) $(WPROGRAM): $(LIBRUBY) $(MAINOBJ) $(OBJS) $(EXTOBJS) $(SETUP) $(PREP)
 
@@ -985,6 +986,12 @@ runruby: $(PROGRAM) PHONY
 parse: fake miniruby$(EXEEXT) PHONY
 	$(BTESTRUBY) $(srcdir)/tool/parse.rb $(TESTRUN_SCRIPT)
 
+bisect: PHONY
+	$(srcdir)/tool/bisect.sh miniruby $(srcdir)
+
+bisect-ruby: PHONY
+	$(srcdir)/tool/bisect.sh ruby $(srcdir)
+
 COMPARE_RUBY = $(BASERUBY)
 ITEM =
 OPTS =
diff --git a/tool/bisect.sh b/tool/bisect.sh
new file mode 100755
index 0000000000..fb22bf429b
--- /dev/null
+++ b/tool/bisect.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# usage:
+#   edit $(srcdir)/test.rb
+#   git bisect start `git svn find-rev <rBADREV>` `git svn find-rev <rGOODREV>`
+#   cd <builddir>
+#   make bisect (or bisect-ruby for full ruby)
+
+if [ "x" = "x$MAKE" ]; then
+  MAKE=make
+fi
+
+case $1 in
+  miniruby | ruby ) # (miniruby|ruby) <srcdir>
+    srcdir=$2
+    builddir=`pwd` # assume pwd is builddir
+    path=$builddir/_bisect.sh
+    echo "path: $path"
+    cp $0 $path
+    cd $srcdir
+    echo "git bisect run $path run-$1"
+    git bisect run $path run-$1
+    ;;
+  run-miniruby )
+    cd ${0%/*} # assume a copy of this script is in builddir
+    $MAKE Makefile
+    $MAKE mini || exit 125
+    $MAKE run || exit 1
+    ;;
+  run-ruby )
+    cd ${0%/*} # assume a copy of this script is in builddir
+    $MAKE Makefile
+    $MAKE program || exit 125
+    $MAKE runruby || exit 1
+    ;;
+  "" )
+    echo foo bar
+    ;;
+  * )
+    echo unkown command "'$cmd'"
+    ;;
+esac
+exit 0