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ruby--ruby/tool/run-gcov.rb
mame 33710d4581 Add coverage measurement mode by using gcov
This experimental feature is only for Ruby-core team, not for casual users.

Usage: `./configure --enable-gcov && make && make exam && make gcov`

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58817 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-20 13:00:41 +00:00

52 lines
1 KiB
Ruby

#!ruby
require "pathname"
require "open3"
Pathname.glob("**/*.gcda").sort.each do |gcda|
if gcda.fnmatch("ext/*")
cwd, gcda = gcda.split.map {|s| s.to_s }
objdir = "."
else
cwd, objdir, gcda = ".", gcda.dirname.to_s, gcda.to_s
end
puts "$ gcov -lpbc -o #{ objdir } #{ gcda }"
out, err, _status = Open3.capture3("gcov", "-lpbc", "-o", objdir, gcda, chdir: cwd)
puts out
puts err
# a black list of source files that contains wrong #line directives
if err !~ %r(
\A(
Cannot\ open\ source\ file\ (
defs/keywords
|zonetab\.list
|enc/jis/props\.kwd
|parser\.c
|parser\.rl
)\n
)*\z
)x
raise "Unexpected gcov output"
end
if out !~ %r(
\A(
File\ .*\nLines\ executed:.*\n
(
Branches\ executed:.*\n
Taken\ at\ least\ once:.*\n
|
No\ branches\n
)?
(
Calls\ executed:.*\n
|
No\ calls\n
)?
Creating\ .*\n
\n
)+\z
)x
raise "Unexpected gcov output"
end
end