diff options
| -rw-r--r-- | morphlib/plugins/print_architecture_plugin.py | 35 | ||||
| -rw-r--r-- | morphlib/util.py | 22 | ||||
| -rw-r--r-- | without-test-modules | 1 | ||||
| -rw-r--r-- | yarns/print-architecture.yarn | 42 |
4 files changed, 100 insertions, 0 deletions
diff --git a/morphlib/plugins/print_architecture_plugin.py b/morphlib/plugins/print_architecture_plugin.py new file mode 100644 index 00000000..08f500d0 --- /dev/null +++ b/morphlib/plugins/print_architecture_plugin.py @@ -0,0 +1,35 @@ +# Copyright (C) 2013 Codethink Limited +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + + +import cliapp +import os + +import morphlib + + +class PrintArchitecturePlugin(cliapp.Plugin): + + def enable(self): + self.app.add_subcommand( + 'print-architecture', self.print_architecture, arg_synopsis='') + + def disable(self): + pass + + def print_architecture(self, args): + '''Print the name of the architecture of the host.''' + + self.app.output.write('%s\n' % morphlib.util.get_host_architecture()) diff --git a/morphlib/util.py b/morphlib/util.py index b83211e3..7526c93c 100644 --- a/morphlib/util.py +++ b/morphlib/util.py @@ -359,3 +359,25 @@ def parse_environment_pairs(env, pairs): # 3 unnecessary lists, but I felt this was the most # easy to read. Using itertools.chain may be more efficicent return dict(env.items() + extra_env.items()) + + + +def get_host_architecture(): # pragma: no cover + '''Get the canonical Morph name for the host's architecture.''' + + machine = os.uname()[-1] + + table = { + 'x86_64': 'x86_64', + 'i386': 'x86_32', + 'i486': 'x86_32', + 'i586': 'x86_32', + 'i686': 'x86_32', + 'armv7l': 'armv7l', + 'armv7b': 'armv7b', + } + + if machine not in table: + raise morphlib.Error('Unknown host architecture %s' % machine) + + return table[machine] diff --git a/without-test-modules b/without-test-modules index 9e2f39aa..861680aa 100644 --- a/without-test-modules +++ b/without-test-modules @@ -28,3 +28,4 @@ morphlib/plugins/copy-artifacts_plugin.py morphlib/plugins/trovectl_plugin.py morphlib/plugins/gc_plugin.py morphlib/plugins/branch_and_merge_new_plugin.py +morphlib/plugins/print_architecture_plugin.py diff --git a/yarns/print-architecture.yarn b/yarns/print-architecture.yarn new file mode 100644 index 00000000..e45d7d1b --- /dev/null +++ b/yarns/print-architecture.yarn @@ -0,0 +1,42 @@ +"morph print-architecture" tests +================================ + +This is short and simple. Morph can print the name for the current +architecture, and we verify not that it is correct, but that exactly +one line is printed to the standard output. The reason we're not +checking it's correct is because that would require the test code +to duplicate the architecture name list that is in the code already, +and that wouldn't help with tests. However, verifying there's exactly +one line in stdout (and nothing in stderr) means the plugin does at +least something sensible. + +Oh, and the one line should contain no spaces, either. + + SCENARIO morph print-architecture prints out a single word + WHEN morph print-architecture is run + THEN stdout contains a single line + AND stdout contains no spaces + AND stderr is empty + + IMPLEMENTS WHEN morph print-architecture is run + run_morph print-architecture > "$DATADIR/stdout" 2> "$DATADIR/stderr" + + IMPLEMENTS THEN stdout contains a single line + n=$(wc -l < "$DATADIR/stdout") + if [ "$n" != 1 ] + then + die "stdout contains $n lines, not 1" + fi + + IMPLEMENTS THEN stdout contains no spaces + n=$(tr < "$DATADIR/stdout" -cd ' ' | wc -c) + if [ "$n" != 0 ] + then + die "stdout contains spaces" + fi + + IMPLEMENTS THEN stderr is empty + if [ -s "$DATADIR/stderr" ] + then + die "stderr is not empty" + fi |