countalias.py

#!/usr/bin/env python3
r"""
Count frequency of git alias use, including expanded alias in count output

run with `alias | python3 countalias.py`

for https://social.jvns.ca/@b0rk/111535523669398292

Almost enough (doesn't recover original alias) in bash:

gitalias=$(alias | grep "='git" | cut -f 2 -d' ' | cut -d= -f 1 | perl -pe 'chomp if eof' | tr '\n' '\r' | sed -e 's/\r/|/g')
atuin history list --cmd-only | grep -Eo "^(${gitalias})\b" | sort | uniq -c | sort -rn
"""
import sys
from subprocess import run
from collections import Counter


git_aliases = {}
for line in sys.stdin:
    line = line.strip()
    _, _, alias = line.partition(" ")
    name, _, command = alias.partition("=")
    if command.lstrip("'\"").startswith("git"):
        git_aliases[name] = line

# or bash history, etc.
history_cmd = ["atuin", "history", "list", "--cmd-only"]
history = run(history_cmd, capture_output=True, check=True, text=True).stdout.splitlines()

# count the use of each alias
counts = Counter()
for line in sorted(history):
    if not line:
        continue
    exe, *rest = line.split(None, 2)
    # include all git commands together, or just aliases?
    # if exe == "git":
    #     counts.update([" ".join([exe] + rest[:1])])
    if exe in git_aliases:
        counts.update([exe])

# report counts, including expanded alias
for cmd, n in counts.most_common():
    cmd = git_aliases.get(cmd, cmd)
    print(f"{n:>4} {cmd}")