Remove graph_jobs management command and asciichartpy dependency (#16078)

Deleted the awx/main/management/commands/graph_jobs.py file and removed the asciichartpy package from requirements. This cleans up unused code and dependencies related to terminal job status graphing.

awx/main/management/commands/graph_jobs.py

@@ -1,108 +0,0 @@
-# Python
-import asciichartpy as chart
-import collections
-import time
-import sys
-
-# Django
-from django.db.models import Count
-from django.core.management.base import BaseCommand
-
-# AWX
-from awx.main.models import Job, Instance
-
-
-DEFAULT_WIDTH = 100
-DEFAULT_HEIGHT = 30
-
-
-def chart_color_lookup(color_str):
-    return getattr(chart, color_str)
-
-
-def clear_screen():
-    print(chr(27) + "[2J")
-
-
-class JobStatus:
-    def __init__(self, status, color, width):
-        self.status = status
-        self.color = color
-        self.color_code = chart_color_lookup(color)
-        self.x = collections.deque(maxlen=width)
-        self.y = collections.deque(maxlen=width)
-
-    def tick(self, x, y):
-        self.x.append(x)
-        self.y.append(y)
-
-
-class JobStatusController:
-    RESET = chart_color_lookup('reset')
-
-    def __init__(self, width):
-        self.plots = [JobStatus('pending', 'red', width), JobStatus('waiting', 'blue', width), JobStatus('running', 'green', width)]
-        self.ts_start = int(time.time())
-
-    def tick(self):
-        ts = int(time.time()) - self.ts_start
-        q = Job.objects.filter(status__in=['pending', 'waiting', 'running']).values_list('status').order_by().annotate(Count('status'))
-        status_count = dict(pending=0, waiting=0, running=0)
-        for status, count in q:
-            status_count[status] = count
-
-        for p in self.plots:
-            p.tick(ts, status_count[p.status])
-
-    def series(self):
-        return [list(p.y) for p in self.plots]
-
-    def generate_status(self):
-        line = ""
-        lines = []
-        for p in self.plots:
-            lines.append(f'{p.color_code}{p.status} {p.y[-1]}{self.RESET}')
-
-        line += ", ".join(lines) + '\n'
-
-        width = 5
-        time_running = int(time.time()) - self.ts_start
-        instances = Instance.objects.all().order_by('hostname')
-        line += "Capacity:  " + ", ".join([f"{instance.capacity:{width}}" for instance in instances]) + '\n'
-        line += "Remaining: " + ", ".join([f"{instance.remaining_capacity:{width}}" for instance in instances]) + '\n'
-        line += f"Seconds running: {time_running}" + '\n'
-
-        return line
-
-
-class Command(BaseCommand):
-    help = "Plot pending, waiting, running jobs over time on the terminal"
-
-    def add_arguments(self, parser):
-        parser.add_argument(
-            '--refresh', dest='refresh', type=float, default=1.0, help='Time between refreshes of the graph and data in seconds (defaults to 1.0)'
-        )
-        parser.add_argument('--width', dest='width', type=int, default=DEFAULT_WIDTH, help=f'Width of the graph (defaults to {DEFAULT_WIDTH})')
-        parser.add_argument('--height', dest='height', type=int, default=DEFAULT_HEIGHT, help=f'Height of the graph (defaults to {DEFAULT_HEIGHT})')
-
-    def handle(self, *args, **options):
-        refresh_seconds = options['refresh']
-        width = options['width']
-        height = options['height']
-
-        jctl = JobStatusController(width)
-
-        conf = {
-            'colors': [chart_color_lookup(p.color) for p in jctl.plots],
-            'height': height,
-        }
-
-        while True:
-            jctl.tick()
-
-            draw = chart.plot(jctl.series(), conf)
-            status_line = jctl.generate_status()
-            clear_screen()
-            print(draw)
-            sys.stdout.write(status_line)
-            time.sleep(refresh_seconds)