Feature: cache md5 sums on successful download.

scripts/fetch

@@ -4,14 +4,23 @@ if [[ ! -z "$rvm_trace_flag" ]] ; then set -x ; export rvm_trace_flag ; fi
 
 trap "if [[ -d $rvm_tmp_path/ ]] && [[ -f $rvm_tmp_path/$$ ]] ; then rm -f $rvm_tmp_path/$$ > /dev/null 2>&1 ; fi ; exit" 0 1 2 3 15
 
+record_md5() {
+  if [[ "Darwin" = "$(uname)" ]] ; then
+    archive_md5="$(md5 $archive | awk '{print $NF}')"
+  else
+    archive_md5="$(md5sum $archive | awk '{print $1}')"
+  fi
+  $rvm_scripts_path/db "$rvm_config_path/md5" "$archive" "$archive_md5"
+}
+
 if ! which curl &> /dev/null; then
   $rvm_scripts_path/log "fail" "rvm requires curl, which does not seem to exist in your path :("
   exit 1
 else
   fetch_command="curl -O -L --create-dirs -C - " # -s for silent
 fi
 
-pushd "$rvm_archives_path" > /dev/null 2>&1
+builtin cd "$rvm_archives_path"
 
 if [[ -z "$1" ]] ; then $rvm_scripts_path/log "fail" "BUG: $0 called without an argument :/" ; exit 1 ; fi
 
@@ -60,11 +69,13 @@ if [[ $download -gt 0 ]] ; then
       result=$?
       if [[ $result -gt 0 ]] ; then
         $rvm_scripts_path/log "error" "There was an error, please check $rvm_ruby_log_path/*.error.log"
+      else
+        record_md5
       fi
     fi
-
+  else
+    record_md5
   fi
-  popd > /dev/null 2>&1
 fi
 
 exit $result

scripts/manage

@@ -127,7 +127,6 @@ __rvm_install_ruby() {
           result=$? ; if [[ "$result" -gt 0 ]] ; then
             $rvm_scripts_path/log "error" "There has been an error while trying to fetch the source. Aborting the installation." ; __rvm_pushpop ; return $result
           fi
-
           mv "$rvm_archives_path/macruby_nightly-latest.pkg" "$rvm_archives_path/macruby_nightly.pkg"
           __rvm_run "macruby/extract" "sudo installer -pkg '$rvm_archives_path/macruby_nightly.pkg' -target '/'"
           mkdir -p "$rvm_ruby_home/bin"

scripts/utility

@@ -753,6 +753,7 @@ __rvm_gems_select() {
   rvm_ruby_gem_path="$rvm_ruby_gem_home:$rvm_ruby_global_gems_path"
 
   # Global gems cache
+  mkdir -p "$rvm_ruby_gem_home"
   if [[ ! -L "$rvm_ruby_gem_home/cache" ]] ; then
     mv "$rvm_ruby_gem_home/cache"/* "$rvm_gem_path/cache/"
     rm -rf "$rvm_ruby_gem_home/cache"