Add install test show (logs) command

lib/spack/llnl/util/tty/__init__.py

@@ -239,6 +239,41 @@ def die(message, *args, **kwargs):
     sys.exit(1)
 
 
+def get_answer(prompt, **kwargs):
+    options = kwargs.get('options', [])
+    default = kwargs.get('default', None)
+    abort = kwargs.get('abort', None)
+
+    explain = ''
+    if default is not None:
+        assert default in options
+        explain += 'default is \'{0}\''.format(default)
+
+    if abort is not None:
+        if explain:
+            explain += ', '
+        explain += '\'{0}\' to abort'.format(abort)
+
+    if explain:
+        prompt = '{0} ({1}) '.format(prompt, explain)
+
+    val = None
+    while val is None:
+        msg(prompt, newline=False)
+        ans = input()
+        if ans == abort:
+            return None
+
+        if ans:
+            if ans in options:
+                val = ans
+            else:
+                msg('Please enter one of: {0}'.format(', '.join(options)))
+        elif default is not None:
+            val = default
+    return val
+
+
 def get_number(prompt, **kwargs):
     default = kwargs.get('default', None)
     abort = kwargs.get('abort', None)

lib/spack/spack/cmd/test.py

@@ -92,6 +92,12 @@ def setup_parser(subparser):
         'filter', nargs=argparse.REMAINDER,
         help='optional case-insensitive glob patterns to filter results.')
 
+    # Show
+    show_parser = sp.add_parser('show', help=test_show.__doc__)
+    show_parser.add_argument(
+        'names', nargs=argparse.REMAINDER,
+        help="Test suites for which to show test logs")
+
     # Status
     status_parser = sp.add_parser('status', help=test_status.__doc__)
     status_parser.add_argument(
@@ -219,6 +225,42 @@ def match(t, f):
         tty.msg(msg)
 
 
+def test_show(args):
+    """Provide ability to view test logs for particular Spack test suites."""
+    if args.names:
+        test_suites = []
+        for name in args.names:
+            test_suite = spack.install_test.get_test_suite(name)
+            if test_suite:
+                test_suites.append(test_suite)
+            else:
+                tty.msg("No test suite %s found in test stage" % name)
+    else:
+        test_suites = spack.install_test.get_all_test_suites()
+        if not test_suites:
+            tty.msg("No test suites with status to report")
+
+    for test_suite in test_suites:
+        for spec in test_suite.specs:
+            log_file = test_suite.log_file_for_spec(spec)
+            if os.path.exists(log_file):
+                filename = os.path.basename(log_file)
+                msg = 'Show {0}?\n\t'.format(filename)
+                answer = tty.get_answer(msg, options=['y', 'n', 'q'],
+                                        default='y', abort='q')
+                if not answer:
+                    tty.msg('Aborting show of test suite logs')
+                    return
+
+                if answer == 'y':
+                    with open(log_file, 'r') as ifd:
+                        lines = ifd.readlines()
+
+                    for ln in lines:
+                        print(ln.strip())
+                    print()  # Add a blank line for readability if multiple
+
+
 def test_status(args):
     """Get the current status for a particular Spack test suites."""
     if args.names:
@@ -307,5 +349,6 @@ def test_remove(args):
     for test_suite in test_suites:
         shutil.rmtree(test_suite.stage)
 
+
 def test(parser, args):
     globals()['test_%s' % args.test_command](args)