Generate rdoc from git repository

Author: soutaro

bin/generate_docs.sh

@@ -2,22 +2,32 @@
 
 set -ex
 
-if [ -z ${RUBY_VERSION} ]; then
-  RUBY_VERSION=`ruby -e 'puts RUBY_VERSION'`
+if [ -z ${RUBY_COMMIT} ]; then
+  RUBY_COMMIT=v`ruby -e 'puts RUBY_VERSION.gsub(".", "_")'`
 fi
 
-echo "RUBY_VERSION = ${RUBY_VERSION}"
+if [ -z ${RBS_RDOC_BASE_DIR} ]; then
+  RBS_RDOC_BASE_DIR=/tmp/rbs-rdoc
+fi
 
 REPO_ROOT=$(cd $(dirname $(dirname $0)); pwd)
 
-rm -f /tmp/ruby.tar.gz
-rm -rf /tmp/ruby-${RUBY_VERSION}
+echo "RBS_RDOC_BASE_DIR = ${RBS_RDOC_BASE_DIR}"
+echo "RUBY_COMMIT = ${RUBY_COMMIT}"
+
+RUBY_SRC_DIR=${RBS_RDOC_BASE_DIR}/ruby-${RUBY_COMMIT}
+RDOC_OUT_DIR=${RBS_RDOC_BASE_DIR}/rdoc-${RUBY_COMMIT}
 
-curl -L https://cache.ruby-lang.org/pub/ruby/${RUBY_VERSION%.*}/ruby-${RUBY_VERSION}.tar.gz | tar xzf - -C /tmp
+rm -rf ${RUBY_SRC_DIR} ${RDOC_OUT_DIR}
 
-rm -rf /tmp/rdoc-${RUBY_VERSION}
+(
+  mkdir -p ${RUBY_SRC_DIR}
+  cd ${RUBY_SRC_DIR}
+  git init
+  git remote add origin https://github.com/ruby/ruby.git
+  git fetch --depth 1 origin ${RUBY_COMMIT}
+  git checkout FETCH_HEAD
+  bundle exec --gemfile=${REPO_ROOT}/Gemfile rdoc --output=${RDOC_OUT_DIR} --root="." --all --ri --page-dir="doc" "."
+)
 
-cd /tmp/ruby-${RUBY_VERSION}
-bundle exec --gemfile=${REPO_ROOT}/Gemfile rdoc --output=/tmp/rdoc-${RUBY_VERSION} --root="." --all --ri --page-dir="doc" "."
-cd ${REPO_ROOT}
-bundle exec rbs annotate --no-system --no-gems --no-site --no-home -d /tmp/rdoc-${RUBY_VERSION} core stdlib
+bundle exec rbs annotate --no-system --no-gems --no-site --no-home -d ${RDOC_OUT_DIR} core stdlib