/usr/share/pepper/authors.lua is in pepper 0.3.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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pepper - SCM statistics report generator
Copyright (C) 2010-present Jonas Gehring
Released under the GNU General Public License, version 3.
Please see the COPYING file in the source distribution for license
terms and conditions, or see http://www.gnu.org/licenses/.
file: authors.lua
Visualizes code contribution by author.
--]]
require "pepper.datetime"
require "pepper.plotutils"
-- Describes the report
function describe(self)
local r = {}
r.name = "Authors"
r.description = "Contributed lines of code by authors"
r.options = {
{"-bARG, --branch=ARG", "Select branch"},
{"--tags[=ARG]", "Add tag markers to the graph, optionally filtered with a regular expression"},
{"-nARG", "Show the ARG busiest authors"}
}
pepper.datetime.add_daterange_options(r)
pepper.plotutils.add_plot_options(r)
return r
end
-- Revision callback function
function callback(r)
if r:author() == "" then
return
end
-- Save commit and LOC count
local loc = r:diffstat():lines_added()
table.insert(commits, {r:date(), r:author(), loc})
if authors[r:author()] == nil then
authors[r:author()] = loc
else
authors[r:author()] = authors[r:author()] + loc
end
end
-- Main script function
function run(self)
commits = {} -- Commit list by timestamp with LOC delta
authors = {} -- Total LOC by author
-- Gather data, but start at the beginning of the repository
-- to get a proper LOC count.
local repo = self:repository()
local branch = self:getopt("b,branch", repo:default_branch())
local datemin, datemax = pepper.datetime.date_range(self)
repo:iterator(branch, {stop=datemax}):map(callback)
-- Determine the "busiest" authors (by LOC)
local authorloc = {}
for k,v in pairs(authors) do
table.insert(authorloc, {k, v})
end
table.sort(authorloc, function (a,b) return (a[2] > b[2]) end)
local i = 1 + tonumber(self:getopt("n", 6))
while i <= #authorloc do
authors[authorloc[i][1]] = nil
authorloc[i] = nil
i = i + 1
end
-- Sort commits by time
table.sort(commits, function (a,b) return (a[1] < b[1]) end)
-- Generate data arrays for the authors, skipping data points
-- prior to datemin.
local keys = {}
local series = {}
local loc = {}
for i,a in ipairs(authorloc) do
loc[a[1]] = 0
end
for t,v in ipairs(commits) do
if datemin < 0 or v[1] >= datemin then
table.insert(keys, v[1])
table.insert(series, {});
end
for i,a in ipairs(authorloc) do
if a[1] == v[2] then
loc[a[1]] = loc[a[1]] + v[3]
end
if datemin < 0 or v[1] >= datemin then
table.insert(series[#series], loc[a[1]])
end
end
end
local authors = {}
for i,a in ipairs(authorloc) do
table.insert(authors, a[1])
end
local p = pepper.gnuplot:new()
pepper.plotutils.setup_output(p)
pepper.plotutils.setup_std_time(p, {key = "below"})
p:set_title("Contributed Lines of Code by Author (on " .. branch .. ")")
if self:getopt("tags") ~= nil then
pepper.plotutils.add_tagmarks(p, repo, self:getopt("tags", "*"))
end
p:set_xrange_time(keys[1], keys[#keys])
p:plot_series(keys, series, authors)
end
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