import Python scripts into bazel

Change-Id: Ide26371f903356aae829d3235fe5d4bf789c1151
diff --git a/tools/build/bazel/onos_app.py b/tools/build/bazel/onos_app.py
new file mode 100755
index 0000000..bbb053c
--- /dev/null
+++ b/tools/build/bazel/onos_app.py
@@ -0,0 +1,219 @@
+#!/usr/bin/env python
+#FIXME Add license
+
+##### Templates for features.xml
+FEATURES_HEADER = '''\
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<features xmlns="http://karaf.apache.org/xmlns/features/v1.2.0"
+          name="%(feature_repo_name)s">
+'''
+FEATURE_HEADER= '''\
+    <feature name="%(feature_name)s" version="%(version)s"
+             description="%(title)s">
+'''
+EXISTING_FEATURE = '        <feature>%s</feature>\n'
+BUNDLE = '        <bundle>%s</bundle>\n'
+FEATURE_FOOTER = '    </feature>\n'
+FEATURES_FOOTER = '</features>'
+
+##### Templates for app.xml
+APP_HEADER = '''\
+<?xml version="1.0" encoding="UTF-8"?>
+<app name="%(app_name)s" origin="%(origin)s" version="%(version)s"
+        title="%(title)s" category="%(category)s" url="%(url)s"
+        featuresRepo="%(feature_repo_name)s"
+        features="%(feature_name)s" apps="%(apps)s">
+    <description>%(description)s</description>
+'''
+ARTIFACT = '    <artifact>%s</artifact>\n'
+SECURITY = '''\
+    <security>
+%s
+    </security>\n'''
+APP_FOOTER = '</app>'
+
+NON_OSGI_TAG = 'NON-OSGI'
+
+def mvnUrl(bundle):
+    #mvn-uri := 'mvn:' [ repository-url '!' ] group-id '/' artifact-id [ '/' [version] [ '/' [type] [ '/' classifier ] ] ] ]
+    parts = bundle.split(':')
+    prefix = 'mvn:'
+    suffix = ''
+    if len(parts) > 3:
+        parts.insert(2, parts.pop()) # move version to the 3rd position
+    if len(parts) >= 5:
+        # check classifier for special non-OSGi tag
+        i = parts[4].find(NON_OSGI_TAG)
+        if i == 0:
+            prefix = 'wrap:' + prefix
+            suffix = '$Bundle-SymbolicName=%s.%s&amp;Bundle-Version=%s' % tuple(parts[0:3])
+            if len(parts[4]) == len(NON_OSGI_TAG):
+                parts.pop() # pop off empty classifier
+                if parts[3].lower() == 'jar':
+                    parts.pop() # pop off default extension: jar
+            else:
+                parts[4] = parts[4][len(NON_OSGI_TAG):]
+    return prefix + '/'.join(parts) + suffix
+
+def generateFeatureFile(feature_repo_name,
+                        features = [],
+                        **kwargs):
+    values = {
+        'feature_repo_name' : '-'.join(feature_repo_name.split(':')[1:3]),
+    }
+
+    output = FEATURES_HEADER % values
+
+    for feature in features:
+        output += feature
+
+    output += FEATURES_FOOTER
+    return output
+
+def generateFeature(feature_name,
+                    version,
+                    title,
+                    features = [],
+                    bundles = [],
+                    **kwargs):
+    values = {
+        'feature_name' : feature_name,
+        'version' : version,
+        'title' : title,
+    }
+
+    output = FEATURE_HEADER % values
+
+    if features:
+        for feature in features:
+            output += EXISTING_FEATURE % feature
+
+    if bundles:
+        for bundle in bundles:
+            output += BUNDLE % mvnUrl(bundle)
+
+    output += FEATURE_FOOTER
+    return output
+
+
+def generateAppFile(app_name,
+                    origin,
+                    version,
+                    title,
+                    category,
+                    url,
+                    feature_repo_name,
+                    feature_name,
+                    description = None,
+                    apps = [],
+                    artifacts = [],
+                    security= None,
+                    **kwargs):
+    values = {
+        'app_name' : app_name,
+        'origin' : origin,
+        'version' : version,
+        'title' : title,
+        'category' : category,
+        'url' : url,
+        'feature_repo_name' : mvnUrl(feature_repo_name) + '/xml/features',
+        'feature_name' : feature_name,
+    }
+
+    values['description'] = description if description else title
+    values['apps'] = ','.join(apps) if apps else ''
+
+    output = APP_HEADER % values
+
+    for artifact in artifacts:
+        output += ARTIFACT % mvnUrl(artifact)
+
+    if security is not None:
+        output += SECURITY % security
+
+    output += APP_FOOTER
+    return output
+
+
+if __name__ == '__main__':
+    import sys, optparse
+
+    parser = optparse.OptionParser()
+    parser.add_option("-n", "--name",     dest="feature_coords", help="Feature MVN Coords")
+    parser.add_option("-a", "--app",      dest="app_name",     help="App Name")
+    parser.add_option("-o", "--origin",   dest="origin",       help="Origin")
+    parser.add_option("-c", "--category", dest="category",     help="Category")
+    parser.add_option("-u", "--url",      dest="url",          help="URL")
+    parser.add_option("-v", "--version",  dest="version",      help="Version")
+    parser.add_option("-t", "--title",    dest="title",        help="Title")
+    parser.add_option("-r", "--repo",     dest="repo_name",    help="Repo Name")
+    parser.add_option('-D', '--desc',     dest='desc',         help='Application description')
+    parser.add_option('-s', '--security', dest='security',     help='Application security')
+
+    parser.add_option('-b', '--bundle',
+                      action="append", dest='included_bundles',
+                      metavar="BUNDLE", help='Included Bundle (multiple allowed)')
+    parser.add_option('-e', '--excluded-bundle',
+                      action="append", dest='excluded_bundles',
+                      metavar="BUNDLE", help='Excluded Bundle (multiple allowed)')
+    parser.add_option('-f', '--feature',
+                      action="append", dest='features',
+                      metavar="FEATURE", help='Existing Feature (multiple allowed)')
+    parser.add_option('-d', '--apps',
+                      action="append", dest='apps',
+                      metavar="FEATURE", help='Required App (multiple allowed)')
+
+    parser.add_option("-A", "--write-app", dest="write_app", action="store_true")
+    parser.add_option("-F", "--write-features", dest="write_features", action="store_true")
+    parser.add_option("-E", "--write-feature", dest="write_feature", action="store_true")
+
+    (options, args) = parser.parse_args()
+
+    values = {}
+    if options.feature_coords and options.version and options.title:
+        parts = options.feature_coords.split(':')
+        values['feature_name'] = parts[1] if len(parts) > 1 else parts[0]
+        values['version'] = options.version
+        values['title'] = options.title
+    else:
+        sys.stderr.write('ERROR: Feature Name, Version, and Title are required\n')
+        sys.stderr.flush()
+        sys.exit(1)
+
+    if options.app_name and options.origin and options.category and options.url:
+        values['app_name'] = options.app_name
+        values['origin'] = options.origin
+        values['category'] = options.category
+        values['url'] = options.url
+    elif options.write_app:
+        sys.stderr.write('ERROR: Feature Name, Version, and Title are required\n')
+        sys.stderr.flush()
+        sys.exit(1)
+
+    values['feature_repo_name'] = options.repo_name if options.repo_name \
+                                    else options.feature_coords
+
+    bundles = []
+    if options.included_bundles:
+        bundles += options.included_bundles
+    if options.excluded_bundles:
+        bundles += options.excluded_bundles
+    if options.desc:
+        values['description'] = options.desc
+
+    feature = generateFeature(bundles=bundles,
+                              features=options.features,
+                              **values)
+
+    if options.write_feature:
+        print feature
+
+    if options.write_features:
+        print generateFeatureFile(features=[ feature ],
+                                  **values)
+
+    if options.write_app:
+        print generateAppFile(artifacts=options.included_bundles,
+                              apps=options.apps,
+                              security=options.security,
+                              **values)
\ No newline at end of file