Proof of concept: support compilation from tarball

Signed-off-by: Stefan Marr <[email protected]>

mx.py

@@ -132,6 +132,8 @@ def no_suite_discovery(func):
 import mx_benchplot
 import mx_downstream
 import mx_subst
+import mx_tar_vcs
+
 
 from mx_javamodules import JavaModuleDescriptor, make_java_module, get_java_module_info, lookup_package, get_transitive_closure
 
@@ -4812,7 +4814,7 @@ def cleanForbidden(self):
 class VC(object):
  __metaclass__ = ABCMeta
  """
- base class for all supported Distriuted Version Constrol abstractions
+ base class for all supported Distributed Version Control abstractions
 
  :ivar str kind: the VC type identifier
  :ivar str proper_name: the long name descriptor of the VCS
@@ -7733,7 +7735,7 @@ def parse_specification(import_dict, context, importer, dynamicImport=False):
  if version_from and version:
  abort("In import for '{}': 'version' and 'versionFrom' can not be both set".format(name), context=context)
  if version is None and version_from is None:
- if not (in_subdir and (importer.vc_dir != importer.dir or isinstance(importer, BinarySuite))):
+ if not (in_subdir and (importer.vc_dir != importer.dir or isinstance(importer, BinarySuite) or isinstance(importer.vc, mx_tar_vcs.TarVC))):
  abort("In import for '{}': No version given and not a 'subdir' suite of the same repository".format(name), context=context)
  if importer.isSourceSuite():
  suite_dir = join(importer.vc_dir, name)
@@ -18105,7 +18107,7 @@ def main():
  _opts.__dict__['very_verbose'] = '-V' in sys.argv
  _opts.__dict__['warn'] = '--no-warning' not in sys.argv
  global _vc_systems
- _vc_systems = [HgConfig(), GitConfig(), BinaryVC()]
+ _vc_systems = [HgConfig(), GitConfig(), BinaryVC(), mx_tar_vcs.TarVC()]
 
  global _mx_suite
  _mx_suite = MXSuite()

mx_tar_vcs.py

@@ -0,0 +1,27 @@
+import time
+
+
+class TarVC(object):
+ """ Proof of concept for building from a tarball. """
+
+ def check(self, abortOnError=True):
+ return self
+
+ def root(self, directory, abortOnError=True):
+ # TODO: figure out how to do this without hard coding. Some meta data?
+ if directory.endswith("/compiler"):
+ return directory[:-len("/compiler")]
+ if directory.endswith("/truffle"):
+ return directory[:-len("/truffle")]
+ if directory.endswith("/tools"):
+ return directory[:-len("/tools")]
+ if directory.endswith("/sdk"):
+ return directory[:-len("/sdk")]
+
+ return directory
+
+ def release_version_from_tags(self, vcdir, prefix, snapshotSuffix='dev', abortOnError=True):
+ return None
+
+ def parent(self, vcdir, abortOnError=True):
+ return 'unknown-{0}'.format(time.strftime('%Y-%m-%d_%H-%M-%S_%Z'))