Support PORTAGE_LOG_FILTER_FILE_CMD (bug 709746)
This variable specifies a command that filters build log output to a
log file. The plan is to extend this to support a separate filter for
tty output in the future.
In order to enable the EbuildPhase class to write elog messages to
the build log with PORTAGE_LOG_FILTER_FILE_CMD support, convert its
_elog method to a coroutine, and add a SchedulerInterface async_output
method for it to use.
Use a new BuildLogger class to manage log output (with or without a
filter command), with compression support provided by PipeLogger.
BuildLogger has a stdin property which provides access to a writable
binary file stream (refers to a pipe) that log content is written to.
Bug: https://bugs.gentoo.org/709746
Signed-off-by: Zac Medico <zmedico@gentoo.org>
10 files changed
