Merge pull request #240 from sstephenson/mirrors

Faster package downloads via S3

README.md

@@ -123,11 +123,56 @@ process.
 * `RUBY_BUILD_BUILD_PATH` sets the location in which sources are
   downloaded and built. By default, this is a subdirectory of
   `TMPDIR`.
+* `RUBY_BUILD_CACHE_PATH`, if set, specifies a directory to use for
+  caching downloaded package files.
+* `RUBY_BUILD_MIRROR_URL` overrides the default mirror URL root to one
+  of your choosing.
+* `RUBY_BUILD_SKIP_MIRROR`, if set, forces ruby-build to download
+  packages from their original source URLs instead of using a mirror.
 * `CC` sets the path to the C compiler.
 * `CONFIGURE_OPTS` lets you pass additional options to `./configure`.
 * `MAKE_OPTS` (or `MAKEOPTS`) lets you pass additional options to
   `make`.
 
+### Checksum verification
+
+If you have the `md5`, `openssl`, or `md5sum` tool installed,
+ruby-build will automatically verify the MD5 checksum of each
+downloaded package before installing it.
+
+Checksums are optional and specified as anchors on the package URL in
+each definition. (All bundled definitions include checksums.)
+
+### Package download mirrors
+
+ruby-build will first attempt to download package files from a mirror
+hosted on Amazon S3. If a package is not available on the mirror, if
+the mirror is down, or if the download is corrupt, ruby-build will
+fall back to the official URL specified in the defintion file.
+
+You can point ruby-build to another mirror by specifying the
+`RUBY_BUILD_MIRROR_URL` environment variable--useful if you'd like to
+run your own local mirror, for example. Package mirror URLs are
+constructed by joining this variable with the MD5 checksum of the
+package file.
+
+If you don't have an MD5 program installed, ruby-build will skip the
+download mirror and use official URLs instead. You can force
+ruby-build to bypass the mirror by setting the
+`RUBY_BUILD_SKIP_MIRROR` environment variable.
+
+### Package download caching
+
+You can instruct ruby-build to keep a local cache of downloaded
+package files by setting the `RUBY_BUILD_CACHE_PATH` environment
+variable. When set, package files will be kept in this directory after
+the first successful download and reused by subsequent invocations of
+`ruby-build` and `rbenv install`.
+
+The `rbenv install` command defaults this path to `~/.rbenv/cache`, so
+in most cases you can enable download caching simply by creating that
+directory.
+
 ### Keeping the build directory after installation
 
 Both `ruby-build` and `rbenv install` accept the `-k` or `--keep`

bin/ruby-build

@@ -112,7 +112,9 @@ install_package_using() {
   make_package "$package_name" $*
   popd >&4
 
-  echo "Installed ${package_name} to ${PREFIX_PATH}" >&2
+  { echo "Installed ${package_name} to ${PREFIX_PATH}"
+    echo
+  } >&2
 }
 
 make_package() {
@@ -127,34 +129,135 @@ make_package() {
   popd >&4
 }
 
-fetch_url() {
+compute_md5() {
+  if type md5 &>/dev/null; then
+    md5 -q
+  elif type openssl &>/dev/null; then
+    openssl md5
+  elif type md5sum &>/dev/null; then
+    local output="$(md5sum -b)"
+    echo "${output% *}"
+  else
+    return 1
+  fi
+}
+
+verify_checksum() {
+  # If there's no MD5 support, return success
+  [ -n "$HAS_MD5_SUPPORT" ] || return 0
+
+  # If the specified filename doesn't exist, return failure
+  local filename="$1"
+  [ -e "$filename" ] || return 1
+
+  # If there's no expected checksum, return success
+  local expected_checksum="$2"
+  [ -n "$expected_checksum" ] || return 0
+
+  # If the computed checksum is empty, return failure
+  local computed_checksum="$(compute_md5 < "$filename")"
+  [ -n "$computed_checksum" ] || return 1
+
+  if [ "$expected_checksum" != "$computed_checksum" ]; then
+    { echo
+      echo "checksum mismatch: ${filename} (file is corrupt)"
+      echo "expected $expected_checksum, got $computed_checksum"
+      echo
+    } >&4
+    return 1
+  fi
+}
+
+http() {
+  local method="$1"
+  local url="$2"
+  [ -n "$url" ] || return 1
+
   if type curl &>/dev/null; then
-    curl "$@"
+    "http_${method}_curl" "$url"
   elif type wget &>/dev/null; then
-    wget -O- "$@"
+    "http_${method}_wget" "$url"
   else
     echo "error: please install \`curl\` or \`wget\` and try again" >&2
     exit 1
   fi
 }
 
+http_head_curl() {
+  curl -sILf "$1" >&4 2>&1
+}
+
+http_get_curl() {
+  curl -sSLf "$1"
+}
+
+http_head_wget() {
+  wget -q --spider "$1" >&4 2>&1
+}
+
+http_get_wget() {
+  wget -nv -O- "$1"
+}
+
 fetch_tarball() {
   local package_name="$1"
   local package_url="$2"
-  local filename="${package_name}.tar.gz"
+  local mirror_url
 
-  if [ -n "$RUBY_BUILD_CACHE_PATH" ]; then
-    filename="${RUBY_BUILD_CACHE_PATH}/${filename}"
+  local checksum="${package_url#*\#}"
+  if [ -n "$checksum" ]; then
+    package_url="${package_url%%#*}"
+
+    if [ -n "$RUBY_BUILD_MIRROR_URL" ]; then
+      mirror_url="${RUBY_BUILD_MIRROR_URL}/$checksum"
+    fi
   fi
 
-  if [ ! -e "$filename" ]; then
-    echo "Downloading ${package_url}..." >&2
-    { fetch_url "$package_url" > "${package_name}.tar.gz"
-      [ -z "$RUBY_BUILD_CACHE_PATH" ] || mv "${package_name}.tar.gz" "$filename"
+  local package_filename="${package_name}.tar.gz"
+  symlink_tarball_from_cache "$package_filename" "$checksum" || {
+    echo "Downloading ${package_filename}..." >&2
+    { http head "$mirror_url" &&
+      download_tarball "$mirror_url" "$package_filename" "$checksum"
+    } ||
+    download_tarball "$package_url" "$package_filename" "$checksum"
+  }
+
+  { tar xzvf "$package_filename"
+    rm -f "$package_filename"
   } >&4 2>&1
-  fi
+}
+
+symlink_tarball_from_cache() {
+  [ -n "$RUBY_BUILD_CACHE_PATH" ] || return 1
+
+  local package_filename="$1"
+  local cached_package_filename="${RUBY_BUILD_CACHE_PATH}/$package_filename"
+  local checksum="$2"
+
+  { verify_checksum "$cached_package_filename" "$checksum"
+    ln -s "$cached_package_filename" "$package_filename"
+  } >&4 2>&1 || return 1
+}
+
+download_tarball() {
+  local package_url="$1"
+  [ -n "$package_url" ] || return 1
 
-  tar xzvf "$filename" >&4 2>&1
+  local package_filename="$2"
+  local checksum="$3"
+
+  echo "-> $package_url" >&2
+
+  { http get "$package_url" > "$package_filename"
+    verify_checksum "$package_filename" "$checksum"
+  } >&4 2>&1 || return 1
+
+  if [ -n "$RUBY_BUILD_CACHE_PATH" ]; then
+    local cached_package_filename="${RUBY_BUILD_CACHE_PATH}/$package_filename"
+    { mv "$package_filename" "$cached_package_filename"
+      ln -s "$cached_package_filename" "$package_filename"
+    } >&4 2>&1 || return 1
+  fi
 }
 
 fetch_git() {
@@ -477,6 +580,23 @@ else
   unset RUBY_BUILD_CACHE_PATH
 fi
 
+if [ -z "$RUBY_BUILD_MIRROR_URL" ]; then
+  RUBY_BUILD_MIRROR_URL="http://cloud.github.com/downloads/sstephenson/ruby-build-download-mirror"
+else
+  RUBY_BUILD_MIRROR_URL="${RUBY_BUILD_MIRROR_URL%/}"
+fi
+
+if [ -n "$RUBY_BUILD_SKIP_MIRROR" ]; then
+  unset RUBY_BUILD_MIRROR_URL
+fi
+
+if echo test | compute_md5 >/dev/null; then
+  HAS_MD5_SUPPORT=1
+else
+  unset HAS_MD5_SUPPORT
+  unset RUBY_BUILD_MIRROR_URL
+fi
+
 SEED="$(date "+%Y%m%d%H%M%S").$$"
 LOG_PATH="${TMP}/ruby-build.${SEED}.log"
 RUBY_BIN="${PREFIX_PATH}/bin/ruby"

share/ruby-build/1.8.6-p383

 require_gcc
-install_package "ruby-1.8.6-p383" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p383.tar.gz"
-install_package "rubygems-1.3.7" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz" ruby
+install_package "ruby-1.8.6-p383" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p383.tar.gz#4f49544d4a4d0d34e9d86c41e853db2e"
+install_package "rubygems-1.3.7" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz#e85cfadd025ff6ab689375adbf344bbe" ruby

share/ruby-build/1.8.6-p420

 require_gcc
-install_package "ruby-1.8.6-p420" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p420.tar.gz"
-install_package "rubygems-1.3.7" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz" ruby
+install_package "ruby-1.8.6-p420" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p420.tar.gz#ca1eee44f842e93b5098bc5a2bb9a40b"
+install_package "rubygems-1.3.7" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz#e85cfadd025ff6ab689375adbf344bbe" ruby

share/ruby-build/1.8.7-p249

 require_gcc
-install_package "ruby-1.8.7-p249" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p249.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p249" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p249.tar.gz#d7db7763cffad279952eb7e9bbfc221c"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.8.7-p302

 require_gcc
-install_package "ruby-1.8.7-p302" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p302.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p302" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p302.tar.gz#f446550dfde0d8162a6ed8d5a38b3ac2"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.8.7-p334

 require_gcc
-install_package "ruby-1.8.7-p334" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p334.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p334" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p334.tar.gz#aacb6ee5dfe2367682bba56af7f415b8"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.8.7-p352

 require_gcc
-install_package "ruby-1.8.7-p352" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p352.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p352" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p352.tar.gz#0c33f663a10a540ea65677bb755e57a7"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.8.7-p357

 require_gcc
-install_package "ruby-1.8.7-p357" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p357.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p357" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p357.tar.gz#b2b8248ff5097cfd629f5b9768d1df82"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.8.7-p358

 require_gcc
-install_package "ruby-1.8.7-p358" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p358.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p358" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p358.tar.gz#26bd55358847459a7752acdbd33a535f"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.8.7-p370

 require_gcc
-install_package "ruby-1.8.7-p370" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p370.tar.gz"
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-1.8.7-p370" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p370.tar.gz#98b00bbd1cdde3116155edb6e555b781"
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/1.9.1-p378

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.1-p378" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p378.tar.gz"
-install_package "rubygems-1.3.5" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.5.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.1-p378" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p378.tar.gz#9fc5941bda150ac0a33b299e1e53654c"
+install_package "rubygems-1.3.5" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.5.tgz#6e317335898e73beab15623cdd5f8cff" ruby

share/ruby-build/1.9.2-p180

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.2-p180" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p180.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.2-p180" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p180.tar.gz#0d6953820c9918820dd916e79f4bfde8"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.2-p290

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.2-p290" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p290.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.2-p290" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p290.tar.gz#604da71839a6ae02b5b5b5e1b792d5eb"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.2-p318

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.2-p318" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p318.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.2-p318" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p318.tar.gz#cc7bf1025128e1985882ae243f348802"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.2-p320

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.2-p320" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p320.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.2-p320" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p320.tar.gz#5ef5d9c07af207710bd9c2ad1cef4b42"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.3-dev

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
 install_git "ruby-1.9.3-dev" "https://github.com/ruby/ruby.git" "ruby_1_9_3" autoconf standard

share/ruby-build/1.9.3-p0

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-p0" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p0.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-p0" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p0.tar.gz#8e2fef56185cfbaf29d0c8329fc77c05"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.3-p125

 [ -n "$CC" ] || export CC=cc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-p125" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-p125" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz#e3ea86b9d3fc2d3ec867f66969ae3b92"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.3-p194

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-p194" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-p194" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.gz#bc0c715c69da4d1d8bd57069c19f6c0e"

share/ruby-build/1.9.3-p286

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-p286" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p286.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-p286" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p286.tar.gz#e2469b55c2a3d0d643097d47fe4984bb"

share/ruby-build/1.9.3-p327

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-p327" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p327.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-p327" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p327.tar.gz#96118e856b502b5d7b3a4398e6c6e98c"

share/ruby-build/1.9.3-preview1

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-preview1" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-preview1.tar.gz"
-install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz" ruby
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-preview1" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-preview1.tar.gz#0f0220be4cc7c51a82c1bd8f6a0969f3"
+install_package "rubygems-1.8.23" "http://production.cf.rubygems.org/rubygems/rubygems-1.8.23.tgz#178b0ebae78dbb46963c51ad29bb6bd9" ruby

share/ruby-build/1.9.3-rc1

 require_gcc
-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-1.9.3-rc1" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-rc1.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-1.9.3-rc1" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-rc1.tar.gz#46a2a481536ca0ca0b80ad2b091df68e"

share/ruby-build/2.0.0-dev

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
 install_git "ruby-2.0.0-dev" "https://github.com/ruby/ruby.git" "trunk" autoconf standard

share/ruby-build/2.0.0-preview1

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "ruby-2.0.0-preview1" "http://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-preview1.tar.gz"
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "ruby-2.0.0-preview1" "http://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-preview1.tar.gz#c7d73f3ddb6d25e7733626ddbad04158"

share/ruby-build/jruby-1.5.6

-install_package "jruby-1.5.6" "http://jruby.org.s3.amazonaws.com/downloads/1.5.6/jruby-bin-1.5.6.tar.gz" jruby
+install_package "jruby-1.5.6" "http://jruby.org.s3.amazonaws.com/downloads/1.5.6/jruby-bin-1.5.6.tar.gz#94033a36517645b7a7ec781a3507c654" jruby

share/ruby-build/jruby-1.6.3

-install_package "jruby-1.6.3" "http://jruby.org.s3.amazonaws.com/downloads/1.6.3/jruby-bin-1.6.3.tar.gz" jruby
+install_package "jruby-1.6.3" "http://jruby.org.s3.amazonaws.com/downloads/1.6.3/jruby-bin-1.6.3.tar.gz#694b80e4eea784cdc1eb39fb1e3132c9" jruby

share/ruby-build/jruby-1.6.4

-install_package "jruby-1.6.4" "http://jruby.org.s3.amazonaws.com/downloads/1.6.4/jruby-bin-1.6.4.tar.gz" jruby
+install_package "jruby-1.6.4" "http://jruby.org.s3.amazonaws.com/downloads/1.6.4/jruby-bin-1.6.4.tar.gz#0e96b6f4d1c6f12b5ac480cd7ab7da78" jruby

share/ruby-build/jruby-1.6.5

-install_package "jruby-1.6.5" "http://jruby.org.s3.amazonaws.com/downloads/1.6.5/jruby-bin-1.6.5.tar.gz" jruby
+install_package "jruby-1.6.5" "http://jruby.org.s3.amazonaws.com/downloads/1.6.5/jruby-bin-1.6.5.tar.gz#54354082673bd115f945890dc6864413" jruby

share/ruby-build/jruby-1.6.5.1

-install_package "jruby-1.6.5.1" "http://jruby.org.s3.amazonaws.com/downloads/1.6.5.1/jruby-bin-1.6.5.1.tar.gz" jruby
+install_package "jruby-1.6.5.1" "http://jruby.org.s3.amazonaws.com/downloads/1.6.5.1/jruby-bin-1.6.5.1.tar.gz#246a7aa2b7d7e6e9e8a0c2e282cbcfd0" jruby

share/ruby-build/jruby-1.6.6

-install_package "jruby-1.6.6" "http://jruby.org.s3.amazonaws.com/downloads/1.6.6/jruby-bin-1.6.6.tar.gz" jruby
+install_package "jruby-1.6.6" "http://jruby.org.s3.amazonaws.com/downloads/1.6.6/jruby-bin-1.6.6.tar.gz#78b1dcaf198e79f98b37cf09c362a956" jruby

share/ruby-build/jruby-1.6.7

-install_package "jruby-1.6.7" "http://jruby.org.s3.amazonaws.com/downloads/1.6.7/jruby-bin-1.6.7.tar.gz" jruby
+install_package "jruby-1.6.7" "http://jruby.org.s3.amazonaws.com/downloads/1.6.7/jruby-bin-1.6.7.tar.gz#fd1b8d7389aa92da69ea6efb4782e40a" jruby

share/ruby-build/jruby-1.6.7.2

-install_package "jruby-1.6.7.2" "http://jruby.org.s3.amazonaws.com/downloads/1.6.7.2/jruby-bin-1.6.7.2.tar.gz" jruby
+install_package "jruby-1.6.7.2" "http://jruby.org.s3.amazonaws.com/downloads/1.6.7.2/jruby-bin-1.6.7.2.tar.gz#1e520f1b5130114464e5f1950cb24774" jruby

share/ruby-build/jruby-1.6.8

-install_package "jruby-1.6.8" "http://jruby.org.s3.amazonaws.com/downloads/1.6.8/jruby-bin-1.6.8.tar.gz" jruby
+install_package "jruby-1.6.8" "http://jruby.org.s3.amazonaws.com/downloads/1.6.8/jruby-bin-1.6.8.tar.gz#a76ac5845640e4a1ebdfa74421efc935" jruby

share/ruby-build/jruby-1.7.0

-install_package "jruby-1.7.0" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0/jruby-bin-1.7.0.tar.gz" jruby
+install_package "jruby-1.7.0" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0/jruby-bin-1.7.0.tar.gz#21861e0ecdbf48cda713c8ade82fdddb" jruby

share/ruby-build/jruby-1.7.0-preview1

-install_package "jruby-1.7.0.preview1" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.preview1/jruby-bin-1.7.0.preview1.tar.gz" jruby
+install_package "jruby-1.7.0.preview1" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.preview1/jruby-bin-1.7.0.preview1.tar.gz#7b9e5e1cd0d818d0199086d948f948b4" jruby

share/ruby-build/jruby-1.7.0-preview2

-install_package "jruby-1.7.0.preview2" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.preview2/jruby-bin-1.7.0.preview2.tar.gz" jruby
+install_package "jruby-1.7.0.preview2" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.preview2/jruby-bin-1.7.0.preview2.tar.gz#e8f1623759590aadbf49e4cc53f1cb61" jruby

share/ruby-build/jruby-1.7.0-rc1

-install_package "jruby-1.7.0.RC1" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.RC1/jruby-bin-1.7.0.RC1.tar.gz" jruby
+install_package "jruby-1.7.0.RC1" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.RC1/jruby-bin-1.7.0.RC1.tar.gz#bdddcee3d126cddd9a85b5a066a7e25e" jruby

share/ruby-build/jruby-1.7.0-rc2

-install_package "jruby-1.7.0.RC2" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.RC2/jruby-bin-1.7.0.RC2.tar.gz" jruby
+install_package "jruby-1.7.0.RC2" "http://jruby.org.s3.amazonaws.com/downloads/1.7.0.RC2/jruby-bin-1.7.0.RC2.tar.gz#ffe2dd61711f4574fed344af151e5de5" jruby

share/ruby-build/maglev-1.0.0

-install_package "MagLev-1.0.0" "http://glass-downloads.gemstone.com/maglev/MagLev-1.0.0.tar.gz" maglev
+install_package "MagLev-1.0.0" "http://glass-downloads.gemstone.com/maglev/MagLev-1.0.0.tar.gz#e02cb8ee04438451eb78df14f91a68a9" maglev

share/ruby-build/rbx-1.2.4

-install_package "rubinius-1.2.4" "http://asset.rubini.us/rubinius-1.2.4-20110705.tar.gz" rbx
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "rubinius-1.2.4" "http://asset.rubini.us/rubinius-1.2.4-20110705.tar.gz#403c777d19b3553e9cb36701fe002c5e" rbx
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/rbx-2.0.0-rc1

-install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
-install_package "rubinius-release-2.0.0-rc1" "https://nodeload.github.com/rubinius/rubinius/tar.gz/release-2.0.0-rc1" rbx
+install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz#36c852831d02cf90508c29852361d01b"
+install_package "rubinius-release-2.0.0-rc1" "https://nodeload.github.com/rubinius/rubinius/tar.gz/release-2.0.0-rc1#d9726d9eb34c861b9f6596bf478a3116" rbx

share/ruby-build/ree-1.8.6-2009.06

 require_gcc
-install_package "ruby-enterprise-1.8.6-20090610" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.6-20090610.tar.gz" ree_installer
-install_package "rubygems-1.4.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.4.2.tgz" ruby
+install_package "ruby-enterprise-1.8.6-20090610" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.6-20090610.tar.gz#0bf66ee626918464a6eccdd83c99d63a" ree_installer
+install_package "rubygems-1.4.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.4.2.tgz#b5badb7c5adda38d9866fa21ae46bbcc" ruby

share/ruby-build/ree-1.8.7-2009.09

 require_gcc
-install_package "ruby-enterprise-1.8.7-20090928" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-20090928.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-20090928" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-20090928.tar.gz#ae00018ce89d95419dfde370fcd485ac" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2009.10

 require_gcc
-install_package "ruby-enterprise-1.8.7-2009.10" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-2009.10.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-2009.10" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-2009.10.tar.gz#3727eef7b6b1b2f31db7d091328d966e" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2010.01

 require_gcc
-install_package "ruby-enterprise-1.8.7-2010.01" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-2010.01.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-2010.01" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-2010.01.tar.gz#587aaea02c86ddbb87394a340a25e554" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2010.02

 require_gcc
-install_package "ruby-enterprise-1.8.7-2010.02" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-2010.02.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-2010.02" "http://files.rubyforge.vm.bytemark.co.uk/emm-ruby/ruby-enterprise-1.8.7-2010.02.tar.gz#4df7b09c01adfd711b0ab76837611542" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2011.03

 require_gcc
-install_package "ruby-enterprise-1.8.7-2011.03" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2011.03.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-2011.03" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2011.03.tar.gz#038604ce25349e54363c5df9cd535ec8" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2011.12

 require_gcc
-install_package "ruby-enterprise-1.8.7-2011.12" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2011.12.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-2011.12" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2011.12.tar.gz#1e5f3059d52a67ab5d91d472b756de08" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2012.01

 require_gcc
-install_package "ruby-enterprise-1.8.7-2012.01" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2012.01.tar.gz" ree_installer
-install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby
+install_package "ruby-enterprise-1.8.7-2012.01" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2012.01.tar.gz#adb9e52da7175da8c6f1658a166d6f59" ree_installer
+install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz#0c95a9869914ba1a45bf71d3b8048420" ruby

share/ruby-build/ree-1.8.7-2012.02

 require_gcc
-install_package "ruby-enterprise-1.8.7-2012.02" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2012.02.tar.gz" ree_installer
+install_package "ruby-enterprise-1.8.7-2012.02" "http://rubyenterpriseedition.googlecode.com/files/ruby-enterprise-1.8.7-2012.02.tar.gz#8d086d2fe68a4c57ba76228e97fb3116" ree_installer