diff --git a/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RVersionNumber.java b/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RVersionNumber.java
index 7bb6438454c37fd40d62e560d3320f731ab07846..55e87678b8123e6bc3c6f2576355db145c5ace1a 100644
--- a/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RVersionNumber.java
+++ b/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RVersionNumber.java
@@ -40,6 +40,7 @@ public class RVersionNumber {
public static final String MAJOR_MINOR = MAJOR + "." + MINOR;
public static final String MINOR_PATCH = MINOR + "." + PATCH;
public static final String FULL = MAJOR + "." + MINOR + "." + PATCH;
+ public static final String R_HYPHEN_FULL = "R-" + FULL;
public static final String RELEASE_YEAR = "2016";
public static final String RELEASE_MONTH = "03";
diff --git a/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/generate/GnuROneShotRSession.java b/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/generate/GnuROneShotRSession.java
index f42d927c67cd9fd4c9dfd3717377c4aee57fccde..c23ac7cdceeec4527a5abf2f98d56cfc405451a6 100644
--- a/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/generate/GnuROneShotRSession.java
+++ b/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/generate/GnuROneShotRSession.java
@@ -38,13 +38,14 @@ import com.oracle.truffle.r.test.TestBase;
* currently some differences in behavior (TBD). Which R is used is controlled by the environment
* variable {@code FASTR_TESTGEN_GNUR}. If unset, we take the default, which is currently the system
* installed version (more precisely whatever "R" resolves to on the PATH). If
- * {@code FASTR_TESTGEN_GNUR} is set to {@code internal}, we use the internally built GnuR. Any
- * other value behaves as if it was unset. {@code PATH}.
+ * {@code FASTR_TESTGEN_GNUR} is set to {@code internal} or the empty string, we use the internally
+ * built GnuR. Any other value is treated as a path to a directory assumed to contain an R HOME, i.e
+ * the executable used is {@code $FASTR_TESTGEN_GNUR/bin/R}.
*/
public class GnuROneShotRSession implements RSession {
private static final String[] GNUR_COMMANDLINE = new String[]{"R", "--vanilla", "--slave", "--silent"};
- private static final String SYSTEM_GNUR_ENV = "FASTR_TESTGEN_GNUR";
+ private static final String FASTR_TESTGEN_GNUR = "FASTR_TESTGEN_GNUR";
private static final String NATIVE_PROJECT = "com.oracle.truffle.r.native";
//@formatter:off
@@ -61,10 +62,15 @@ public class GnuROneShotRSession implements RSession {
protected static byte[] QUIT = "q()\n".getBytes();
protected Process createGnuR() throws IOException {
- String testGenGnuR = System.getenv(SYSTEM_GNUR_ENV);
- if (testGenGnuR != null && testGenGnuR.equals("internal")) {
- Path gnuRPath = FileSystems.getDefault().getPath(REnvVars.rHome(), NATIVE_PROJECT, "gnur", "R-" + RVersionNumber.FULL, "bin", "R");
- GNUR_COMMANDLINE[0] = gnuRPath.toString();
+ String testGenGnuR = System.getenv(FASTR_TESTGEN_GNUR);
+ if (testGenGnuR != null) {
+ if (testGenGnuR.length() == 0 || testGenGnuR.equals("internal")) {
+ Path gnuRPath = FileSystems.getDefault().getPath(REnvVars.rHome(), NATIVE_PROJECT, "gnur", RVersionNumber.R_HYPHEN_FULL, "bin", "R");
+ GNUR_COMMANDLINE[0] = gnuRPath.toString();
+ } else {
+ GNUR_COMMANDLINE[0] = FileSystems.getDefault().getPath(testGenGnuR, "bin", "R").toString();
+ }
+
}
ProcessBuilder pb = new ProcessBuilder(GNUR_COMMANDLINE);
// fix time zone to "CET" (to create consistent expected output)
@@ -114,4 +120,9 @@ public class GnuROneShotRSession implements RSession {
public String name() {
return "GnuR one-shot";
}
+
+ public static void main(String[] args) {
+ String testGenGnuR = System.getenv(FASTR_TESTGEN_GNUR);
+ System.out.printf("%s='%s'%n", FASTR_TESTGEN_GNUR, testGenGnuR);
+ }
}
diff --git a/mx.fastr/mx_fastr.py b/mx.fastr/mx_fastr.py
index 88ca3bf219105ef5aeb48f926c2bf38a62a80f59..dd060c203f000a2308f12dde846e7d139b6b510c 100644
--- a/mx.fastr/mx_fastr.py
+++ b/mx.fastr/mx_fastr.py
@@ -436,14 +436,31 @@ def testgen(args):
# check we are in the home directory
if os.getcwd() != _fastr_suite.dir:
mx.abort('must run rtestgen from FastR home directory')
- # check the version of GnuR against FastR
- try:
- fastr_version = subprocess.check_output([mx.get_jdk().java, '-cp', mx.classpath('com.oracle.truffle.r.runtime'), 'com.oracle.truffle.r.runtime.RVersionNumber'])
- gnur_version = subprocess.check_output(['R', '--version'])
- if not gnur_version.startswith(fastr_version):
- mx.abort('R version is incompatible with FastR, please update to ' + fastr_version)
- except subprocess.CalledProcessError:
- mx.abort('RVersionNumber.main failed')
+
+ def need_version_check():
+ vardef = os.environ.has_key('FASTR_TESTGEN_GNUR')
+ varval = os.environ['FASTR_TESTGEN_GNUR'] if vardef else None
+ version_check = not vardef or varval != 'internal'
+ if version_check:
+ if vardef and varval != 'internal':
+ rpath = join(varval, 'bin', 'R')
+ else:
+ rpath = 'R'
+ else:
+ rpath = None
+ return version_check, rpath
+
+ version_check, rpath = need_version_check()
+ if version_check:
+ # check the version of GnuR against FastR
+ try:
+ fastr_version = subprocess.check_output([mx.get_jdk().java, '-cp', mx.classpath('com.oracle.truffle.r.runtime'), 'com.oracle.truffle.r.runtime.RVersionNumber'])
+ gnur_version = subprocess.check_output([rpath, '--version'])
+ if not gnur_version.startswith(fastr_version):
+ mx.abort('R version is incompatible with FastR, please update to ' + fastr_version)
+ except subprocess.CalledProcessError:
+ mx.abort('RVersionNumber.main failed')
+
# clean the test project to invoke the test analyzer AP
testOnly = ['--projects', 'com.oracle.truffle.r.test']
mx.clean(['--no-dist', ] + testOnly)