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#!/usr/bin/env lua
local luacov = require("luacov.stats")
local data, most_hits = luacov.load()
if not data then
print("Could not load stats file "..luacov.statsfile..".")
print("Run your Lua program with -lluacov and then rerun luacov.")
os.exit(1)
end
local report = io.open("luacov.report.out", "w")
-- only report on files specified on the command line
local patterns = {}
for i = 1, #arg do
patterns[i] = arg[i]
end
local names = {}
for filename, _ in pairs(data) do
if not patterns[1] then
table.insert(names, filename)
else
local path = filename:gsub("/", "."):gsub("%.lua$", "")
local include = false
for _, p in ipairs(patterns) do
if path:match(p) then
include = true
break
end
end
if include then
table.insert(names, filename)
end
end
end
table.sort(names)
local most_hits_length = ("%d"):format(most_hits):len()
local empty_format = (" "):rep(most_hits_length+1)
local false_negative_format = ("!%% %dd"):format(most_hits_length)
local zero_format = ("*"):rep(most_hits_length).."0"
local count_format = ("%% %dd"):format(most_hits_length+1)
local exclusions =
{
{ false, "^#!" }, -- Unix hash-bang magic line
{ true, "" }, -- Empty line
{ true, "end,?" }, -- Single "end"
{ true, "else" }, -- Single "else"
{ true, "repeat" }, -- Single "repeat"
{ true, "do" }, -- Single "do"
{ true, "local%s+[%w_,%s]+" }, -- "local var1, ..., varN"
{ true, "local%s+[%w_,%s]+%s*=" }, -- "local var1, ..., varN ="
{ true, "local%s+function%s*%([%w_,%s]*%)" }, -- "local function(arg1, ..., argN)"
{ true, "local%s+function%s+[%w_]*%s*%([%w_,%s]*%)" }, -- "local function f (arg1, ..., argN)"
}
local function excluded(line)
for _, e in ipairs(exclusions) do
if e[1] then
if line:match("^%s*"..e[2].."%s*$") or line:match("^%s*"..e[2].."%s*%-%-") then return true end
else
if line:match(e[2]) then return true end
end
end
return false
end
for _, filename in ipairs(names) do
local filedata = data[filename]
local file = io.open(filename, "r")
if file then
report:write("\n")
report:write("==============================================================================\n")
report:write(filename, "\n")
report:write("==============================================================================\n")
local line_nr = 1
block_comment, equals = false, ""
while true do
local line = file:read("*l")
if not line then break end
local true_line = line
local new_block_comment = false
if not block_comment then
local l, equals = line:match("^(.*)%-%-%[(=*)%[")
if l then
line = l
new_block_comment = true
end
else
local l = line:match("%]"..equals.."%](.*)$")
if l then
line = l
block_comment = false
end
end
local hits = filedata[line_nr] or 0
if block_comment or excluded(line) then
if hits > 0 then
report:write(false_negative_format:format(hits))
else
report:write(empty_format)
end
else
if hits == 0 then
report:write(zero_format)
else
report:write(count_format:format(hits))
end
end
report:write("\t", true_line, "\n")
if new_block_comment then block_comment = true end
line_nr = line_nr + 1
end
end
end
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