ODLPARENT-137: restore the opendaylight prompt

In Karaf 4.1 and later, it turns out that the prompt defined in the
branding is overridden by the shell initialisation script,
etc/shell.init.script, which defines its own prompt. This patch adds
our own version of that script which disables the override.

Thanks to Guillaume Nodet for figuring out where the override was
coming from, and to Michael Vorburger for the initial investigation!
See https://issues.apache.org/jira/browse/KARAF-5570 for details.

Change-Id: Id053e464896a1e5e767faac1f8c76f414b450463
Signed-off-by: Stephen Kitt <skitt@redhat.com>

diff --git a/karaf/src/main/assembly/etc/shell.init.script b/karaf/src/main/assembly/etc/shell.init.script
new file mode 100644 (file)
index 0000000..ccc9d2a
--- /dev/null
+++ b/karaf/src/main/assembly/etc/shell.init.script
@@ -0,0 +1,66 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+//
+// This script is run each time a shell is created.
+// You can define here closures or variables that will be available
+// in each session.
+//
+ld = { log:display $args } ;
+lde = { log:exception-display $args } ;
+la = { bundle:list -t 0 $args } ;
+ls = { service:list $args } ;
+cl = { config:list "(service.pid=$args)" } ;
+halt = { system:shutdown -h -f $args } ;
+help = { *:help $args | more } ;
+man = { help $args } ;
+log:list = { log:get ALL } ;
+service:get = { $.context getService ($.context getServiceReference $args) };
+
+env = { shell:set $args }
+edit = { shell:nano $args }
+more = { shell:less -F $args }
+
+// \#prompt = { "\e[1m${USER}\e[0m@${APPLICATION}(${SUBSHELL})> "?};
+
+__load_class = {
+  (($.reader class) classLoader) loadClass $1
+}
+
+// make sure that we catch exceptions
+// as they do occur if the session is headless / non-interactive
+jlineReader = $.reader
+if { %(jlineReader != null) } {
+
+  # On 256 colors terminal, add a right prompt
+  max_colors = ($.jline.terminal getNumericCapability max_colors)
+  if { %(max_colors >= 256) } {
+    __rprompt_formatter = (((__load_class java.text.SimpleDateFormat) getConstructor (__load_class java.lang.String)) newInstance \'$'\u001B\[90m'\'HH:mm:ss)
+    __date_class = (__load_class java.util.Date)
+// Do not use right prompt by default
+//    \#rprompt = { $__rprompt_formatter format ($__date_class newInstance) }
+  }
+
+  setopt group
+  setopt auto-fresh-line
+  unsetopt insert-tab
+  keymap "^[OA" up-line-or-search
+  keymap "^[[A" up-line-or-search
+  keymap "^[OB" down-line-or-search
+  keymap "^[[B" down-line-or-search
+
+}