-- Who committed what this month, by running git and reading its output.
local since = os.date("%Y-%m-01")
local log = os.run({ "git", "log", "--since=" .. since, "--format=%an" })
if not log.ok then
print("git failed: " .. log.stderr)
os.exit(1)
end
local counts = {}
for _, author in log.stdout:trim():split("\n") do
if author != "" then counts[author] = (counts[author] ?? 0) + 1 end
end
local authors = table.keys(counts)
table.sort(authors, function(a, b) return counts[a] > counts[b] end)
print(`commits since {since}:`)
for _, author in authors do
print(string.format(" %4d %s", counts[author], author))
end