Only store a single encrypted file

tool/deploy.sh

@@ -3,18 +3,13 @@
 # license that can be found in the LICENSE file or at
 # https://opensource.org/licenses/MIT.
 
-echo decrypting npmrc
-openssl aes-256-cbc -K $encrypted_d18df560dfb2_key -iv $encrypted_d18df560dfb2_iv \
-        -in tool/encrypted/npmrc.enc -out ~/.npmrc -d
+openssl aes-256-cbc -K $encrypted_d18df560dfb2_key -iv $encrypted_d18df560dfb2_iv -in tool/encrypted/credentials.tar.enc \
+    -out credentials.tar -d
 
 mkdir -p ~/.pub-cache
-echo decrypting pub credentials
-openssl aes-256-cbc -K $encrypted_d18df560dfb2_key -iv $encrypted_d18df560dfb2_iv \
-        -in tool/encrypted/pub-credentials.json.enc -out ~/.pub-cache/credentials.json -d
-
-echo decrypting git credentials
-openssl aes-256-cbc -K $encrypted_d18df560dfb2_key -iv $encrypted_d18df560dfb2_iv \
-        -in tool/encrypted/git-credentials.enc -out ~/.git-credentials -d
+tar xfO credentials.tar npm > ~/.npmrc
+tar xfO credentials.tar pub > ~/.pub-cache/credentials.json
+tar xfO credentials.tar git > ~/.git-credentials
 
 function travis_cmd() {
   echo "\$ $@"

tool/encrypted/npmrc.enc

@@ -1 +1 @@
-c©²iÑPþßúÚ‹g«¿°³^öa²5øì˧ApŠçÿÒ!
~å¦f\ྉ.ô<>ðú\‡Žu%«þÁºcD¿°U4†Æ)O
+~Í<>^M¨Ê·<C38A>Ž:˯ï2<9M›£_<C2A3>ÆÖj¶ 'VÕêœaøÀ2áœNúuh¿ÂNªÅOß!ªœø*}ªÞ†ã#xŽe<C5BD>®\c›9<E280BA>²