.travis.yml: cache unicode.org files

Before this changeset (since r58071) we did not download files
from unicode.org but just touch some files.  This is a kind of
hack that people normally don't do at home.

We are caching other files between builds now.  Why not also save
those files downloaded from elsewhere.  This covers more
realistic workload, I guess.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

.travis.yml

@@ -61,6 +61,7 @@ cache:
   ccache: true
   directories:
     - $HOME/config_2nd
+    - $HOME/.downloaded-cache
 
 env:
   global:
@@ -319,11 +320,14 @@ before_script:
   - $SETARCH uname -r
   - rm -fr .ext autom4te.cache
   - echo $TERM
+  - |-
+    [ -d ~/.downloaded-cache ] ||
+    mkdir ~/.downloaded-cache
+  - ln -s ~/.downloaded-cache
   - "> config.status"
   - sed -f tool/prereq.status Makefile.in common.mk > Makefile
-  - make update-config_files
-  - make touch-unicode-files
-  - make -s $JOBS srcs UNICODE_FILES=.
+  - make -s $JOBS update-download
+  - make -s $JOBS srcs
   - rm config.status Makefile rbconfig.rb .rbconfig.time
   - |-
     if [ -d ~/config_2nd ]; then

common.mk

@@ -1221,7 +1221,7 @@ update-mspec:
 update-rubyspec:
 
 update-config_files: PHONY
-	$(Q) $(BASERUBY) -C "$(srcdir)" tool/downloader.rb -d tool -e gnu \
+	$(Q) $(BASERUBY) -C "$(srcdir)" tool/downloader.rb -d tool --cache-dir=$(CACHE_DIR) -e gnu \
 	    config.guess config.sub
 
 update-gems: PHONY
@@ -1313,7 +1313,7 @@ UNICODE_EMOJI_FILES = \
 		$(UNICODE_SRC_EMOJI_DATA_DIR)/emoji-zwj-sequences.txt \
 		$(empty)
 
-update-unicode: $(UNICODE_FILES)
+update-unicode: $(UNICODE_FILES) $(UNICODE_PROPERTY_FILES)
 
 CACHE_DIR = $(srcdir)/.downloaded-cache
 UNICODE_DOWNLOAD = \