travis-build.sh: bootstrap settings.xml internally

ctrueden · ctrueden · commit ba28889200dc · 2017-10-17T14:17:12.000-05:00
Rather than relying on every repository always having its
own (in all cases so far identical) .travis/settings.xml,
the script can generate one itself for its own use.

If a .travis/settings.xml does exist, however, we use that.
This way, individual repositories can still customize the
settings if they need to do so for some reason -- although
doing so runs the risk of getting "out of sync" with this
script's requirements, if they change in the future.
diff --git a/travis-build.sh b/travis-build.sh
@@ -12,18 +12,46 @@ echo "== Configuring Maven =="
 # See: https://stackoverflow.com/a/35653426/1207769
 export MAVEN_OPTS=-Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
 
+# Populate the settings.xml configuration.
+mkdir -p "$HOME/.m2"
+settingsFile="$HOME/.m2/settings.xml"
+customSettings=.travis/settings.xml
+test -f "$customSettings" && cp "$customSettings" "$settingsFile" ||
+cat >"$settingsFile" <<EOL
+<settings>
+	<servers>
+		<server>
+			<id>imagej.releases</id>
+			<username>travis</username>
+			<password>${env.MAVEN_PASS}</password>
+		</server>
+		<server>
+			<id>imagej.snapshots</id>
+			<username>travis</username>
+			<password>${env.MAVEN_PASS}</password>
+		</server>
+		<server>
+			<id>sonatype-nexus-releases</id>
+			<username>scijava-ci</username>
+			<password>${env.OSSRH_PASS}</password>
+		</server>
+	</servers>
+</settings>
+EOL
+
+# Run the build.
 if [ "$TRAVIS_SECURE_ENV_VARS" = true \
 	-a "$TRAVIS_PULL_REQUEST" = false \
 	-a "$TRAVIS_BRANCH" = master ]
 then
 	echo "== Building and deploying master SNAPSHOT =="
-	mvn -B -Pdeploy-to-imagej deploy --settings "$dir/.travis/settings.xml"
+	mvn -B -Pdeploy-to-imagej deploy
 elif [ "$TRAVIS_SECURE_ENV_VARS" = true \
 	-a "$TRAVIS_PULL_REQUEST" = false \
 	-a -f release.properties ]
 then
 	echo "== Cutting and deploying release version =="
-	mvn -B --settings "$dir/.travis/settings.xml" release:perform
+	mvn -B release:perform
 else
 	echo "== Building the artifact locally only =="
 	mvn -B install
