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diff --git a/src/op-mode/vyos-show-version.py b/src/op-mode/vyos-show-version.py
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+++ b/src/op-mode/vyos-show-version.py
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+#!/usr/bin/env python3
+#
+# Copyright (C) 2016 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+#
+# File: vyos-show-version
+# Purpose:
+# Displays image version and system information.
+# Used by the "run show version" command.
+
+
+import os
+import sys
+import subprocess
+import argparse
+import json
+
+import pystache
+
+import vyos.version
+import vyos.limericks
+
+
+parser = argparse.ArgumentParser()
+parser.add_argument("-a", "--all", action="store_true", help="Include individual package versions")
+parser.add_argument("-f", "--funny", action="store_true", help="Add something funny to the output")
+parser.add_argument("-j", "--json", action="store_true", help="Produce JSON output")
+
+def read_file(name):
+ try:
+ with open (name, "r") as f:
+ data = f.read()
+ return data.strip()
+ except:
+ # This works since we only read /sys/class/* stuff
+ # with this function
+ return "Unknown"
+
+version_output_tmpl = """
+Version: VyOS {{version}}
+Built by: {{built_by}}
+Built on: {{built_on}}
+Build ID: {{build_id}}
+
+Architecture: {{system_arch}}
+Boot via: {{boot_via}}
+System type: {{system_type}}
+
+Hardware vendor: {{hardware_vendor}}
+Hardware model: {{hardware_model}}
+Hardware S/N: {{hardware_serial}}
+Hardware UUID: {{hardware_uuid}}
+
+Copyright: VyOS maintainers and contributors
+
+"""
+
+if __name__ == '__main__':
+ args = parser.parse_args()
+
+ version_data = vyos.version.get_version_data()
+
+ # Get system architecture (well, kernel architecture rather)
+ version_data['system_arch'] = subprocess.check_output('uname -m', shell=True).decode().strip()
+
+
+ # Get hypervisor name, if any
+ system_type = "bare metal"
+ try:
+ hypervisor = subprocess.check_output('hvinfo 2>/dev/null', shell=True).decode().strip()
+ system_type = "{0} guest".format(hypervisor)
+ except subprocess.CalledProcessError:
+ # hvinfo returns 1 if it cannot detect any hypervisor
+ pass
+ version_data['system_type'] = system_type
+
+
+ # Get boot type, it can be livecd, installed image, or, possible, a system installed
+ # via legacy "install system" mechanism
+ # In installed images, the squashfs image file is named after its image version,
+ # while on livecd it's just "filesystem.squashfs", that's how we tell a livecd boot
+ # from an installed image
+ boot_via = "installed image"
+ if subprocess.call(""" grep -e '^overlay.*/filesystem.squashfs' /proc/mounts >/dev/null""", shell=True) == 0:
+ boot_via = "livecd"
+ elif subprocess.call(""" grep '^overlay /' /proc/mounts >/dev/null """, shell=True) != 0:
+ boot_via = "legacy non-image installation"
+ version_data['boot_via'] = boot_via
+
+
+ # Get hardware details from DMI
+ version_data['hardware_vendor'] = read_file('/sys/class/dmi/id/sys_vendor')
+ version_data['hardware_model'] = read_file('/sys/class/dmi/id/product_name')
+
+ # These two assume script is run as root, normal users can't access those files
+ version_data['hardware_serial'] = read_file('/sys/class/dmi/id/subsystem/id/product_serial')
+ version_data['hardware_uuid'] = read_file('/sys/class/dmi/id/subsystem/id/product_uuid')
+
+
+ if args.json:
+ print(json.dumps(version_data))
+ sys.exit(0)
+ else:
+ output = pystache.render(version_output_tmpl, version_data).strip()
+ print(output)
+
+ if args.all:
+ print("Package versions:")
+ os.system("dpkg -l")
+
+ if args.funny:
+ print(vyos.limericks.get_random())