Feature/unzip xz

conans/client/remote_manager.py

@@ -383,6 +383,11 @@ def unzip_and_get_files(files, destination_dir, tgz_name):
     to destination_dir, unzipping the "tgz_name" if found"""
 
     tgz_file = files.pop(tgz_name, None)
+    bare_name = os.path.splitext(tgz_name)[0]
+    for f in files:
+        if bare_name == os.path.splitext(f)[0]:
+            raise ConanException("This Conan version is not prepared to handle '%s' file format. "
+                                 "Please upgrade conan client." % f)
     if tgz_file:
         uncompress_file(tgz_file, destination_dir)
         os.remove(tgz_file)

conans/client/tools/files.py

@@ -11,6 +11,7 @@
 from conans.errors import ConanException
 from conans.util.files import (load, save, _generic_algorithm_sum)
 from conans.unicode import get_cwd
+import six
 
 
 _global_output = None
@@ -68,6 +69,11 @@ def unzip(filename, destination=".", keep_permissions=False, pattern=None):
             filename.endswith(".tbz2") or filename.endswith(".tar.bz2") or
             filename.endswith(".tar")):
         return untargz(filename, destination, pattern)
+    if filename.endswith(".tar.xz") or filename.endswith(".txz"):
+        if six.PY2:
+            raise ConanException("XZ format not supported in Python 2. Use Python 3 instead")
+        return untargz(filename, destination, pattern)
+
     import zipfile
     full_path = os.path.normpath(os.path.join(get_cwd(), destination))
 

conans/test/util/xz_test.py

@@ -0,0 +1,33 @@
+import os
+from unittest import TestCase
+import six
+import unittest
+import tarfile
+
+from conans.test.utils.test_files import temp_folder
+from conans.tools import unzip, save
+from conans.util.files import load
+from conans.errors import ConanException
+
+
+class XZTest(TestCase):
+
+    @unittest.skipUnless(six.PY3, "only Py3")
+    def test(self):
+        tmp_dir = temp_folder()
+        file_path = os.path.join(tmp_dir, "a_file.txt")
+        save(file_path, "my content!")
+        txz = os.path.join(tmp_dir, "sample.tar.xz")
+        with tarfile.open(txz, "w:xz") as tar:
+            tar.add(file_path, "a_file.txt")
+
+        dest_folder = temp_folder()
+        unzip(txz, dest_folder)
+        content = load(os.path.join(dest_folder, "a_file.txt"))
+        self.assertEqual(content, "my content!")
+
+    @unittest.skipUnless(six.PY2, "only Py2")
+    def test_error_python2(self):
+        with self.assertRaisesRegexp(ConanException, "XZ format not supported in Python 2"):
+            dest_folder = temp_folder()
+            unzip("somefile.tar.xz", dest_folder)