Created
October 7, 2014 00:06
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Wrapper for "stata -b" which issues an informative error msg and appropriate (i.e., non-zero) return code
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#! /bin/bash | |
# Wrapper for "stata -b" which issues an informative error msg and appropriate | |
# (i.e., non-zero) return code | |
# The basic idea for this script (including grepping the log file to determine | |
# whether there was an error) was taken from a similar script posted by Brendan | |
# Halpin on his blog at http://teaching.sociology.ul.ie/bhalpin/wordpress/?p=122 | |
args=$# # number of args | |
cmd="" | |
if [ "$1" = "do" ] && [ "$args" -gt 1 ] | |
then | |
log="`basename -s .do "$2"`.log" | |
# mimic Stata's behavior (stata-se -b do "foo bar.do" -> foo.log) | |
log=${log/% */.log} | |
# Stata requires explicit -do- command, but we relax this to permit just the | |
# name of a single do-file | |
elif [ "$args" -eq 1 ] && [ "${1##*.}" = "do" ] && [ "$1" != "do" ] | |
then | |
cmd="do" | |
log="`basename -s .do "$1"`.log" | |
log=${log/% */.log} | |
else | |
# else Stata interprets it as a command and logs to stata.log | |
log="stata.log" | |
fi | |
# in batch mode, nothing sent to stdout (is this guaranteed?) | |
stderr=`stata-se -b $cmd "$@" 2>&1` | |
rc=$? | |
if [ -n "$stderr" ] # typically usage info | |
then | |
echo "$stderr" | |
exit $rc | |
elif [ $rc != "0" ] | |
then | |
exit $rc | |
else | |
# use --max-count to avoid matching final line ("end of do-file") when | |
# do-file terminates with error | |
if egrep --before-context=1 --max-count=1 "^r\([0-9]+\);$" "$log" | |
then | |
exit 1 | |
fi | |
fi |
@pschumm you're my hero.
This is great! It's crazy that Stata doesn't output correct return codes.
I ended up finding it easier having a simple script checklog.sh
:
#! /usr/bin/env bash
if egrep --before-context=1 --max-count=1 "^r\([0-9]+\);$" "${1:-/dev/stdin}"
then
exit 1
else
exit 0
fi
and then just running it after calling stata -b
, like so:
stata -b do script.do; bash checklog.sh script.log
This is nice because it also supports reading the log from stdin. So if I'm running dyntext
on a file, I'll do:
stata < <(echo "dyntext file.domd, saving(file.md)") | bash checklog.sh
and it'll still catch any errors.
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Great code. One note is that compiled plugins can output to stdout even in batch mode. The current version of -synth- outputs lots of debugging info. For long jobs I pipe the output through "tail -100 " so that it doesn't create huge files.