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allow setting shift variables in LogDevice when using reopen #56

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allow setting shift variables in LogDevice when using reopen #56

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5 changes: 3 additions & 2 deletions lib/logger.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -616,8 +616,9 @@ def initialize(logdev, shift_age = 0, shift_size = 1048576, level: DEBUG,
# # "E, [2022-05-12T14:21:27.596726 #22428] ERROR -- : one\n",
# # "E, [2022-05-12T14:23:05.847241 #22428] ERROR -- : three\n"]
#
def reopen(logdev = nil)
@logdev&.reopen(logdev)
def reopen(logdev = nil, shift_age = nil, shift_size = nil, shift_period_suffix: nil, binmode: nil)
@logdev&.reopen(logdev, shift_age: shift_age, shift_size: shift_size,
shift_period_suffix: shift_period_suffix, binmode: binmode)
self
end

Expand Down
26 changes: 15 additions & 11 deletions lib/logger/log_device.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -16,16 +16,7 @@ def initialize(log = nil, shift_age: nil, shift_size: nil, shift_period_suffix:
@binmode = binmode
mon_initialize
set_dev(log)
if @filename
@shift_age = shift_age || 7
@shift_size = shift_size || 1048576
@shift_period_suffix = shift_period_suffix || '%Y%m%d'

unless @shift_age.is_a?(Integer)
base_time = @dev.respond_to?(:stat) ? @dev.stat.mtime : Time.now
@next_rotate_time = next_rotate_time(base_time, @shift_age)
end
end
set_file(shift_age, shift_size, shift_period_suffix) if @filename
end

def write(message)
Expand Down Expand Up @@ -59,16 +50,18 @@ def close
end
end

def reopen(log = nil)
def reopen(log = nil, shift_age: nil, shift_size: nil, shift_period_suffix: nil, binmode: nil)
# reopen the same filename if no argument, do nothing for IO
log ||= @filename if @filename
@binmode = binmode unless binmode.nil?
if log
synchronize do
if @filename and @dev
@dev.close rescue nil # close only file opened by Logger
@filename = nil
end
set_dev(log)
set_file(shift_age, shift_size, shift_period_suffix) if @filename
end
end
self
Expand All @@ -92,6 +85,17 @@ def set_dev(log)
end
end

def set_file(shift_age, shift_size, shift_period_suffix)
@shift_age = shift_age.nil? ? @shift_age || 7 : shift_age
@shift_size = shift_size.nil? ? @shift_size || 1048576 : shift_size
@shift_period_suffix = shift_period_suffix.nil? ? @shift_period_suffix || '%Y%m%d' : shift_period_suffix

unless @shift_age.is_a?(Integer)
base_time = @dev.respond_to?(:stat) ? @dev.stat.mtime : Time.now
@next_rotate_time = next_rotate_time(base_time, @shift_age)
end
end

def open_logfile(filename)
begin
File.open(filename, (File::WRONLY | File::APPEND))
Expand Down
77 changes: 77 additions & 0 deletions test/logger/test_logdevice.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -189,6 +189,83 @@ def test_reopen_file_by_file
end
end

def test_shifting_size_with_reopen
tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_1.log'])
logfile = tmpfile.path
logfile0 = logfile + '.0'
logfile1 = logfile + '.1'
logfile2 = logfile + '.2'
logfile3 = logfile + '.3'
tmpfile.close(true)
File.unlink(logfile) if File.exist?(logfile)
File.unlink(logfile0) if File.exist?(logfile0)
File.unlink(logfile1) if File.exist?(logfile1)
File.unlink(logfile2) if File.exist?(logfile2)

logger = Logger.new(STDERR)
logger.reopen(logfile, 4, 100)

logger.error("0" * 15)
assert_file.exist?(logfile)
assert_file.not_exist?(logfile0)
logger.error("0" * 15)
assert_file.exist?(logfile0)
assert_file.not_exist?(logfile1)
logger.error("0" * 15)
assert_file.exist?(logfile1)
assert_file.not_exist?(logfile2)
logger.error("0" * 15)
assert_file.exist?(logfile2)
assert_file.not_exist?(logfile3)
logger.error("0" * 15)
assert_file.not_exist?(logfile3)
logger.error("0" * 15)
assert_file.not_exist?(logfile3)
logger.close
File.unlink(logfile)
File.unlink(logfile0)
File.unlink(logfile1)
File.unlink(logfile2)

tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_2.log'])
logfile = tmpfile.path
logfile0 = logfile + '.0'
logfile1 = logfile + '.1'
logfile2 = logfile + '.2'
logfile3 = logfile + '.3'
tmpfile.close(true)
logger = Logger.new(logfile, 4, 150)
logger.error("0" * 15)
assert_file.exist?(logfile)
assert_file.not_exist?(logfile0)
logger.error("0" * 15)
assert_file.not_exist?(logfile0)
logger.error("0" * 15)
assert_file.exist?(logfile0)
assert_file.not_exist?(logfile1)
logger.error("0" * 15)
assert_file.not_exist?(logfile1)
logger.error("0" * 15)
assert_file.exist?(logfile1)
assert_file.not_exist?(logfile2)
logger.error("0" * 15)
assert_file.not_exist?(logfile2)
logger.error("0" * 15)
assert_file.exist?(logfile2)
assert_file.not_exist?(logfile3)
logger.error("0" * 15)
assert_file.not_exist?(logfile3)
logger.error("0" * 15)
assert_file.not_exist?(logfile3)
logger.error("0" * 15)
assert_file.not_exist?(logfile3)
logger.close
File.unlink(logfile)
File.unlink(logfile0)
File.unlink(logfile1)
File.unlink(logfile2)
end

def test_shifting_size
tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_1.log'])
logfile = tmpfile.path
Expand Down