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[tor-bugs] #33604 [Core Tor/Chutney]: Catch common bash runtime errors in chutney scripts

#33604: Catch common bash runtime errors in chutney scripts
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     Reporter:  teor              |      Owner:  (none)
         Type:  enhancement       |     Status:  new
     Priority:  Medium            |  Milestone:
    Component:  Core Tor/Chutney  |    Version:
     Severity:  Normal            |   Keywords:
Actual Points:                    |  Parent ID:
       Points:  1                 |   Reviewer:
      Sponsor:                    |
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 Let's gradually convert our scripts to use:
 {{{
 set -e
 set -u
 set -o pipefail
 }}}

 And maybe:
 {{{
 IFS=$'\n\t'
 }}}

 These settings help catch common errors in bash scripts at runtime:
 http://redsymbol.net/articles/unofficial-bash-strict-mode/

 (Shellcheck helps us catch errors while writing scripts, but it can't help
 with runtime failures.)

 Follow-up to #33451.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33604>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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