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require 'open3'
class GitlabCustomHook
def pre_receive(changes, repo_path)
hook = hook_file('pre-receive', repo_path)
return true if hook.nil?
call_receive_hook(hook, changes)
end
def post_receive(changes, repo_path)
hook = hook_file('post-receive', repo_path)
return true if hook.nil?
call_receive_hook(hook, changes)
end
def update(ref_name, old_value, new_value, repo_path)
hook = hook_file('update', repo_path)
return true if hook.nil?
system(hook, ref_name, old_value, new_value)
end
private
def call_receive_hook(hook, changes)
# function will return true if succesful
exit_status = false
# we combine both stdout and stderr as we don't know what stream
# will be used by the custom hook
Open3.popen2e(hook) do |stdin, stdout_stderr, wait_thr|
exit_status = true
stdin.sync = true
# in git, pre- and post- receive hooks may just exit without
# reading stdin. We catch the exception to avoid a broken pipe
# warning
begin
# inject all the changes as stdin to the hook
changes.lines do |line|
stdin.puts(line)
end
rescue Errno::EPIPE
end
# need to close stdin before reading stdout
stdin.close
unless wait_thr.value == 0
exit_status = false
end
stdout_stderr.each_line { |line| puts line }
end
exit_status
end
def hook_file(hook_type, repo_path)
hook_path = File.join(repo_path.strip, 'custom_hooks')
hook_file = "#{hook_path}/#{hook_type}"
hook_file if File.exist?(hook_file)
end
end
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