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#! /usr/bin/env nix-shell
#! nix-shell -i python -p "python3.withPackages(p: [p.matplotlib])"
import re
import sys
import math
import argparse
import fileinput
import matplotlib.pyplot as plt
# Complex regex that grabs two match groups: category and %, but it ignores rows
# with a headline that starts with "\_", thereby selecting only the top-level
# agenda items.
clocktable_row = re.compile(
r"^\|\s*\|\s(\w*(?!.*\_)).*\|.*\s+(\d+\.\d)\s\|$",
re.MULTILINE,
)
if __name__ == '__main__':
cli = argparse.ArgumentParser(description='Generate a pie chart from your org agenda clocktable')
cli.add_argument('infile', type=argparse.FileType('r'), nargs='?', default='-')
cli.add_argument('outfile', type=argparse.FileType('w'), nargs='?', default=None)
args = cli.parse_args()
content = args.infile.read()
matches = re.finditer(clocktable_row, content)
slices = {}
for m in matches:
if m.group(1) == "ALL": continue
k = m.group(1)
v = float(m.group(2))
if k not in slices:
slices[k] = v
else:
slices[k] += v
# Round up b/c of floating point arithmetic
total = math.ceil(sum(slices.values()))
if total != 100:
print("Warning: Sum of the slices is {} but it should be 100!".format(total))
fig, ax = plt.subplots()
wedges, texts, autotexts = ax.pie(
slices.values(),
labels = slices.keys(),
autopct='%1.1f%%',
textprops=dict(color="w"))
ax.legend(wedges, slices.keys(), title="Categories", loc="center left",
bbox_to_anchor=(0, 0, 0.5, 1))
ax.axis('equal') # Equal aspect ratio ensures pie is drawn as a circle
plt.setp(autotexts, size=8, weight="bold")
ax.set_title("How I spent my time")
if args.outfile is None:
plt.show()
else:
plt.savefig(args.outfile.name)
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