Convert CI setup script from bash to D.

Author: Abscissa

.travis.yml

@@ -6,7 +6,7 @@ addons:
   apt:
     packages: [ libevent-dev ]
 
-install: ./travis-setup.sh
+install: $DMD -ofci_setup ci_setup.d && ./ci_setup
 script: ./run-tests
 
 matrix:

ci_setup.d

@@ -0,0 +1,69 @@
+import std.file;
+import std.process;
+
+bool envBool(string name)
+{
+	return environment.get(name, null) == "true";
+}
+
+string envGet(string name)
+{
+	return environment.get(name, null);
+}
+
+void copyIfExists(string from, string to)
+{
+	if(exists(from) && isFile(from))
+		copy(from, to);
+}
+
+void main()
+{
+	auto haveRdmd = executeShell("rdmd --help").status == 0;
+	if(!haveRdmd)
+	{
+		auto dmdZip = "dmd.2.076.0."~environment["TRAVIS_OS_NAME"]~".zip";
+		spawnShell("wget http://downloads.dlang.org/releases/2017/"~dmdZip).wait;
+		spawnShell("unzip -d local-dmd "~dmdZip).wait;
+	}
+
+	// MySQL is not installed by default on OSX build agents
+	if(environment["TRAVIS_OS_NAME"] == "osx")
+	{
+		spawnShell("brew update").wait;
+		spawnShell("brew install mysql && brew services start mysql").wait;
+	}
+
+	// If an alternate dub.selections.json was requested, use it.
+	copyIfExists("dub.selections."~envGet("DUB_SELECT")~".json", "dub.selections.json");
+	copyIfExists("examples/homePage/dub.selections."~envGet("DUB_SELECT")~".json", "examples/homePage/dub.selections.json");
+
+	if(envBool("DUB_UPGRADE"))
+	{
+		// Update all dependencies
+		//
+		// As a bonus, this downloads & resolves deps now so intermittent
+		// failures are more likely to be correctly marked as "job error"
+		// rather than "tests failed".
+		spawnShell("dub upgrade").wait;
+		chdir("examples/homePage");
+		spawnShell("dub upgrade").wait;
+		chdir("../..");
+	}
+	else
+	{
+		// Don't upgrade dependencies.
+		//
+		// But download & resolve deps now so intermittent failures are more likely
+		// to be correctly marked as "job error" rather than "tests failed".
+		spawnShell("dub upgrade --missing-only").wait;
+		chdir("examples/homePage");
+		spawnShell("dub upgrade --missing-only").wait;
+		chdir("../..");
+	}
+
+	// Setup DB
+	spawnShell(`mysql -u root -e 'SHOW VARIABLES LIKE "%version%";'`).wait;
+	spawnShell(`mysql -u root -e 'CREATE DATABASE mysqln_testdb;'`).wait;
+	write("testConnectionStr.txt", "host=127.0.0.1;port=3306;user=root;pwd=;db=mysqln_testdb");
+}