From: Eric Wong <bofh@yhbt.net> To: unicorn-public@yhbt.net Subject: [PATCH 1/2] test_helper: support TAIL= env for watching tests Date: Sun, 26 Jul 2020 01:57:58 +0000 [thread overview] Message-ID: <20200726015759.18011-2-bofh@yhbt.net> (raw) In-Reply-To: <20200726015759.18011-1-bofh@yhbt.net> This can be useful for diagnosing failures, especially since GNU tail supports inotify these days. --- test/test_helper.rb | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/test/test_helper.rb b/test/test_helper.rb index 94a5b1b6..e3c6ad4e 100644 --- a/test/test_helper.rb +++ b/test/test_helper.rb @@ -37,13 +37,25 @@ def redirect_test_io orig_err = STDERR.dup orig_out = STDOUT.dup - STDERR.reopen("test_stderr.#{$$}.log", "a") - STDOUT.reopen("test_stdout.#{$$}.log", "a") + new_out = File.open("test_stdout.#$$.log", "a") + new_err = File.open("test_stderr.#$$.log", "a") + new_out.sync = new_err.sync = true + + if tail = ENV['TAIL'] # "tail -F" if GNU, "tail -f" otherwise + require 'shellwords' + cmd = tail.shellsplit + cmd << new_out.path + cmd << new_err.path + pid = Process.spawn(*cmd, { 1 => 2, :pgroup => true }) + sleep 0.1 # wait for tail(1) to startup + end + STDERR.reopen(new_err) + STDOUT.reopen(new_out) STDERR.sync = STDOUT.sync = true at_exit do - File.unlink("test_stderr.#{$$}.log") rescue nil - File.unlink("test_stdout.#{$$}.log") rescue nil + File.unlink(new_out.path) rescue nil + File.unlink(new_err.path) rescue nil end begin @@ -51,6 +63,7 @@ def redirect_test_io ensure STDERR.reopen(orig_err) STDOUT.reopen(orig_out) + Process.kill(:TERM, pid) if pid end end
next prev parent reply other threads:[~2020-07-26 1:57 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-26 1:57 [PATCH 0/2] minor test improvements Eric Wong 2020-07-26 1:57 ` Eric Wong [this message] 2020-07-26 1:57 ` [PATCH 2/2] build: revamp and avoid unnecessary rebuilds Eric Wong
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