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authorterminaldweller <thabogre@gmail.com>2022-12-29 07:43:26 +0000
committerterminaldweller <thabogre@gmail.com>2022-12-29 07:43:26 +0000
commit053360ade1bdda6fbdeef40a70be0cbaf00419b0 (patch)
treedb7d34f03088040dbc82271e8c8f3fe5dad738de /bin/virttop
parentupdate (diff)
downloadscripts-053360ade1bdda6fbdeef40a70be0cbaf00419b0.tar.gz
scripts-053360ade1bdda6fbdeef40a70be0cbaf00419b0.zip
update
Diffstat (limited to '')
-rwxr-xr-xbin/virttop195
1 files changed, 115 insertions, 80 deletions
diff --git a/bin/virttop b/bin/virttop
index 64d53be..be67a48 100755
--- a/bin/virttop
+++ b/bin/virttop
@@ -9,7 +9,9 @@ import argparse
import csv
import dataclasses
import enum
+import signal
import sys
+import time
import typing
from xml.dom.minidom import Document
@@ -18,6 +20,13 @@ from defusedxml import minidom
import libvirt # type:ignore
+# pylint: disable=unused-argument
+def sig_handler_sigint(signum, frame):
+ """Just to handle C-c gracefully"""
+ print()
+ sys.exit(0)
+
+
class Argparser: # pylint: disable=too-few-public-methods
"""Argparser class."""
@@ -59,6 +68,8 @@ class Colors(enum.EnumType):
blueblue = "\x1b[38;5;24m"
greenie = "\x1b[38;5;23m"
goo = "\x1b[38;5;22m"
+ screen_clear = "\033c\033[3J"
+ hide_cursor = "\033[?25l"
@dataclasses.dataclass
@@ -135,53 +146,68 @@ def get_disk_info(
return result_dict
-def ffs(offset: int, header_list: typing.List[str], numbered: bool, *args):
+# pylint: disable=too-many-locals
+def ffs(
+ offset: int,
+ header_list: typing.Optional[typing.List[str]],
+ numbered: bool,
+ *args,
+):
"""A simple columnar printer"""
max_column_width = []
lines = []
numbers_f: typing.List[int] = []
dummy = []
- if numbered:
- numbers_f.extend(range(1, len(args[-1]) + 1))
- max_column_width.append(max(len(repr(number)) for number in numbers_f))
- header_list.insert(0, "idx")
+ if sys.stdout.isatty():
+ greenie = Colors.greenie
+ bold = Colors.BOLD
+ endc = Colors.ENDC
+ goo = Colors.goo
+ blueblue = Colors.blueblue
+ else:
+ greenie = ""
+ bold = ""
+ endc = ""
+ goo = ""
+ blueblue = ""
for arg in args:
max_column_width.append(max(len(repr(argette)) for argette in arg))
- index = range(0, len(header_list))
- for header, width, i in zip(header_list, max_column_width, index):
- max_column_width[i] = max(len(header), width) + offset
+ if header_list is not None:
+ if numbered:
+ numbers_f.extend(range(1, len(args[-1]) + 1))
+ max_column_width.append(
+ max(len(repr(number)) for number in numbers_f)
+ )
+ header_list.insert(0, "idx")
- for i in index:
- dummy.append(
- Colors.greenie
- + Colors.BOLD
- + header_list[i].ljust(max_column_width[i])
- + Colors.ENDC
- )
- lines.append("".join(dummy))
- dummy.clear()
+ index = range(0, len(header_list))
+ for header, width, i in zip(header_list, max_column_width, index):
+ max_column_width[i] = max(len(header), width) + offset
+
+ for i in index:
+ dummy.append(
+ greenie
+ + bold
+ + header_list[i].ljust(max_column_width[i])
+ + endc
+ )
+ lines.append("".join(dummy))
+ dummy.clear()
index2 = range(0, len(args[-1]))
for i in index2:
if numbered:
dummy.append(
- Colors.goo
- + Colors.BOLD
- + repr(i).ljust(max_column_width[0])
- + Colors.ENDC
+ goo + bold + repr(i).ljust(max_column_width[0]) + endc
)
for arg, width in zip(args, max_column_width[1:]):
- dummy.append(
- Colors.blueblue + (arg[i]).ljust(width) + Colors.ENDC
- )
+ dummy.append(blueblue + (arg[i]).ljust(width) + endc)
else:
for arg, width in zip(args, max_column_width):
- dummy.append(
- Colors.blueblue + (arg[i]).ljust(width) + Colors.ENDC
- )
+ dummy.append(blueblue + (arg[i]).ljust(width) + endc)
lines.append("".join(dummy))
dummy.clear()
return lines
@@ -254,60 +280,69 @@ def fill_virt_data_uri(
def main() -> None:
"""entrypoint"""
+ signal.signal(signal.SIGINT, sig_handler_sigint)
argparser = Argparser()
- virt_data = VirtData()
- arp_table = get_arp_table()
- for hv_host in argparser.args.uri:
- conn = libvirt.openReadOnly(hv_host)
- active_hosts = conn.listDomainsID()
- if len(active_hosts) > 0:
- # pools = conn.listAllStoragePools()
- # networks = conn.listAllNetworks()
- # print([pool.name() for pool in conn.listAllStoragePools()])
- # print([net.name() for net in conn.listAllNetworks()])
- virt_data.vm_id = [repr(vm_id) for vm_id in conn.listDomainsID()]
- fill_virt_data_uri(conn, active_hosts, virt_data, arp_table)
- # for conn_id in conn.listAllDomains():
- # print(conn_id.name())
- # print(conn_id.state())
- else:
- print("no active VMs found.")
- sys.exit(1)
-
- lines = ffs(
- 2,
- [
- "ID",
- "NAME",
- "CPU",
- "MEM_ACTUAL",
- "MEM_UNUSED",
- "NET_WRITE_B",
- "NET_READ_B",
- "MAC",
- "IP",
- "IO_READ_B",
- "IO_WRITE_B",
- "SNAPSHOTS",
- "URI",
- ],
- False,
- virt_data.vm_id,
- virt_data.name,
- virt_data.cpu_times,
- virt_data.mem_actual,
- virt_data.mem_unused,
- virt_data.write_bytes,
- virt_data.read_bytes,
- virt_data.macs,
- virt_data.ips,
- virt_data.disk_reads,
- virt_data.disk_writes,
- virt_data.snapshot_counts,
- virt_data.uri,
- )
- for line in lines:
- print(line)
+ print(Colors.screen_clear, end="")
+ while True:
+ virt_data = VirtData()
+ arp_table = get_arp_table()
+ for hv_host in argparser.args.uri:
+ conn = libvirt.openReadOnly(hv_host)
+ active_hosts = conn.listDomainsID()
+ if len(active_hosts) > 0:
+ # pools = conn.listAllStoragePools()
+ # networks = conn.listAllNetworks()
+ # print([pool.name() for pool in conn.listAllStoragePools()])
+ # print([net.name() for net in conn.listAllNetworks()])
+ virt_data.vm_id = [
+ repr(vm_id) for vm_id in conn.listDomainsID()
+ ]
+ fill_virt_data_uri(conn, active_hosts, virt_data, arp_table)
+ # for conn_id in conn.listAllDomains():
+ # print(conn_id.name())
+ # print(conn_id.state())
+ else:
+ print("no active VMs found.")
+ sys.exit(1)
+
+ lines = ffs(
+ 2,
+ [
+ "ID",
+ "NAME",
+ "CPU",
+ "MEM_ACTUAL",
+ "MEM_UNUSED",
+ "NET_WRITE_B",
+ "NET_READ_B",
+ "MAC",
+ "IP",
+ "IO_READ_B",
+ "IO_WRITE_B",
+ "SNAPSHOTS",
+ "URI",
+ ],
+ False,
+ virt_data.vm_id,
+ virt_data.name,
+ virt_data.cpu_times,
+ virt_data.mem_actual,
+ virt_data.mem_unused,
+ virt_data.write_bytes,
+ virt_data.read_bytes,
+ virt_data.macs,
+ virt_data.ips,
+ virt_data.disk_reads,
+ virt_data.disk_writes,
+ virt_data.snapshot_counts,
+ virt_data.uri,
+ )
+ for line in lines:
+ print(line)
+ time.sleep(argparser.args.delay)
+ # clears the screen
+ print(Colors.screen_clear, end="")
+ print(Colors.hide_cursor, end="")
if __name__ == "__main__":