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[tor-bugs] #33603 [Core Tor/Tor]: Catch common errors in bash scripts

#33603: Catch common errors in bash scripts
------------------------------+------------------------------
     Reporter:  teor          |      Owner:  (none)
         Type:  enhancement   |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: unspecified
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:  1             |   Reviewer:
      Sponsor:                |
------------------------------+------------------------------
 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.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33603>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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