Support tag driven releases

.travis.yml

@@ -1,6 +1,13 @@
 language: scala
+env:
+  global:
+    - PUBLISH_JDK=oraclejdk8 # admin/build.sh only publishes when running on this jdk
+# Don't commit sensitive files, instead commit a version encrypted with $SECRET,
+# this environment variable is encrypted with this repo's private key and stored below:
+# (See http://docs.travis-ci.com/user/environment-variables/#Secure-Variables.)
+  secure: "sGB53QddmPmQ4ftCGYxT0gaJcFt0bpMJoGxJRJCFTxdzg6nNMqJ9qDWbyJo7vDFx30axNQlyBH928pUiS5KfsmvzVdoVHUBEUJlF1lBurlpx06tGLuBdcFDwUF5ybi7SGRNdUPuX/6uLdgK5clpcW16/pcfT5Qr5vo/0mvPY85s="
 script:
-  - sbt ++$TRAVIS_SCALA_VERSION clean test publishLocal
+  - admin/build.sh
 scala:
   - 2.10.4
   - 2.11.4

admin/build.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# prep environment for publish to sonatype staging if the HEAD commit is tagged
+
+# git on travis does not fetch tags, but we have TRAVIS_TAG
+# headTag=$(git describe --exact-match ||:)
+
+if [ "$TRAVIS_JDK_VERSION" == "$PUBLISH_JDK" ] && [[ "$TRAVIS_TAG" =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-[A-Za-z0-9-]+)? ]]; then
+  echo "Going to release from tag $TRAVIS_TAG!"
+  myVer=$(echo $TRAVIS_TAG | sed -e s/^v// | sed -e 's/_[0-9]*\.[0-9]*//')
+  publishVersion='set every version := "'$myVer'"'
+  extraTarget="publish-signed"
+
+  cat admin/gpg.sbt >> project/plugins.sbt
+  admin/decrypt.sh sensitive.sbt
+  (cd admin/ && ./decrypt.sh secring.asc)
+fi
+
+sbt ++$TRAVIS_SCALA_VERSION "$publishVersion" clean update test publishLocal $extraTarget

admin/decrypt.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+openssl aes-256-cbc -pass "pass:$SECRET" -in $1.enc -out $1 -d -a

admin/encrypt.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+openssl aes-256-cbc -pass "pass:$SECRET" -in $1 -out $1.enc -a

admin/encryptAll.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Based on https://gist.github.com/kzap/5819745:
+
+echo "This will encrypt the cleartext sensitive.sbt and admin/secring.asc, while making the encrypted versions available for decryption on Travis."
+echo "Update your .travis.yml as directed, and delete the cleartext versions."
+echo "Press enter to continue."
+read
+
+# 1. create a secret, put it in an environment variable while encrypting files -- UNSET IT AFTER
+export SECRET=$(cat /dev/urandom | head -c 10000 | openssl sha1)
+
+# 2. add the "secure: ..." line under the env section -- generate it with ``  (install the travis gem first)
+travis encrypt SECRET=$SECRET
+
+admin/encrypt.sh admin/secring.asc
+admin/encrypt.sh sensitive.sbt
+
+echo "Remember to rm sensitive.sbt admin/secring.asc -- once you do, they cannot be recovered (except on Travis)!"

admin/gpg.sbt

@@ -0,0 +1,26 @@
+
+addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8.3") // only added when publishing:
+
+// There's a companion sensitive.sbt, which was created like this:
+//
+// 1. in an sbt shell that has the sbt-pgp plugin, create pgp key in admin/:
+//
+// sbt
+//  set pgpReadOnly := false
+//  set pgpPublicRing := file("admin/pubring.asc")
+//  set pgpSecretRing := file("admin/secring.asc")
+//  pgp-cmd gen-key // use $passPhrase
+// 	 Please enter the name associated with the key: $repoName
+// 	 Please enter the email associated with the key: scala-internals@googlegroups.com
+// 	 Please enter the passphrase for the key: $passphrase
+//
+// 2. create sensitive.sbt with contents:
+//
+// pgpPassphrase := Some($passPhrase.toArray)
+//
+// pgpPublicRing := file("admin/pubring.asc")
+//
+// pgpSecretRing := file("admin/secring.asc")
+//
+// credentials   += Credentials("Sonatype Nexus Repository Manager", "oss.sonatype.org", $sonaUser, $sonaPass)
+

admin/pubring.asc

@@ -0,0 +1,18 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: BCPG v1.49
+
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+=oZnQ
+-----END PGP PUBLIC KEY BLOCK-----

admin/secring.asc.enc

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sensitive.sbt.enc

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