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templates: When a subprocess fatally errors, output its stderr directly

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Right now we dump all subprocess output to `program.log`.  Unfortunately,
The pungi/koji stack doesn't know how to scrape out the lorax logs.

And even when running interactively, it's annoying that *some* fatal
errors show up on stderr, but if it's from a subprocess, I need to go
over and `tail program.log`.

Let's output the subprocess stderr directly, since the user is
going to want it prominently anyways.
This commit is contained in:
Colin Walters 2016-11-08 17:18:13 -05:00 committed by Brian C. Lane
parent 359b78385f
commit 5aa6fea8c3
1 changed files with 2 additions and 2 deletions
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4
src/pylorax/ltmpl.py
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@ -518,8 +518,8 @@ class LoraxTemplateRunner(object):
logger.debug("command finished successfully")
except CalledProcessError as e:
if e.output:
logger.debug('command output:\n%s', e.output)
logger.debug('command returned failure (%d)', e.returncode)
logger.error('command output:\n%s', e.output)
logger.error('command returned failure (%d)', e.returncode)
raise
def installpkg(self, *pkgs):