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#!/usr/bin/env luajit
-- SPDX-License-Identifier: GPL-3.0-or-later
local luacov = require('luacov')
local ReporterBase = require('luacov.reporter').ReporterBase
local LcovReporter = setmetatable({}, ReporterBase)
LcovReporter.__index = LcovReporter
function LcovReporter:on_new_file(filename)
self.finfo = self.current_files[filename] or {name=filename, coverage={}}
end
function LcovReporter:on_mis_line(_, lineno, _)
self.finfo.coverage[lineno] = self.finfo.coverage[lineno] or 0
end
function LcovReporter:on_hit_line(_, lineno, _, hits)
self.finfo.coverage[lineno] = (self.finfo.coverage[lineno] or 0) + hits
end
function LcovReporter:on_end_file()
self.current_files[self.finfo.name] = self.finfo
self.finfo = nil
end
-- Write out results in lcov format
local function write_lcov_info(files)
for fname, finfo in pairs(files) do
local instrumented, nonzero = 0, 0
print('TN:')
print(string.format('SF:%s', fname))
for i, hits in pairs(finfo.coverage) do
print(string.format('DA:%d,%d', i, hits))
instrumented = instrumented + 1
if hits > 0 then
nonzero = nonzero + 1
end
end
print(string.format('LH:%d', nonzero))
print(string.format('LF:%d', instrumented))
print('end_of_record')
end
end
-- Accumulate total coverage
local all_files = {}
for _, fname in ipairs(arg) do
local conf = luacov.load_config()
conf.statsfile = fname
local reporter = assert(LcovReporter:new(conf))
reporter.current_files = all_files
reporter:run()
reporter:close()
end
-- Write results
write_lcov_info(all_files)
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