Run sbt-pgp-coursier tests in their own job

.travis.yml

@@ -8,6 +8,7 @@ matrix:
   include:
     - env: SBT_COURSIER=1
     - env: SBT_SHADING=1
+    - env: SBT_PGP_COURSIER=1
 branches:
   only:
   - master

scripts/travis.sh

@@ -7,20 +7,27 @@ downloadInstallSbtExtras() {
   chmod +x bin/sbt
 }
 
+sbtPgpCoursier() {
+  [ "${SBT_PGP_COURSIER:-""}" = 1 ]
+}
+
 sbtShading() {
   [ "${SBT_SHADING:-""}" = 1 ]
 }
 
 runSbtCoursierTests() {
-  addPgpKeys
+  ./scripts/with-test-repo.sh sbt ++$TRAVIS_SCALA_VERSION sbt-coursier/test sbt-coursier/scripted
-  ./scripts/with-test-repo.sh sbt ++$TRAVIS_SCALA_VERSION sbt-coursier/scripted
-  sbt ++$TRAVIS_SCALA_VERSION sbt-pgp-coursier/scripted
 }
 
 runSbtShadingTests() {
   sbt ++$TRAVIS_SCALA_VERSION sbt-shading/scripted
 }
 
+runSbtPgpCoursierTests() {
+  addPgpKeys
+  sbt ++$TRAVIS_SCALA_VERSION sbt-pgp-coursier/scripted
+}
+
 addPgpKeys() {
   for key in b41f2bce 9fa47a44 ae548ced b4493b94 53a97466 36ee59d9 dc426429 3b80305d 69e0a56c fdd5c0cd 35543c27 70173ee5 111557de 39c263a9; do
     gpg --keyserver keyserver.ubuntu.com --recv "$key"
@@ -32,6 +39,8 @@ downloadInstallSbtExtras
 
 if sbtShading; then
   runSbtShadingTests
+elif sbtPgpCoursier; then
+  runSbtPgpCoursierTests
 else
   runSbtCoursierTests
 fi