[tbb-bugs] #26907 [Applications/Tor Browser]: Guard against failures during MAR file generation

[Tor Bug Tracker & Wiki]

#26907: Guard against failures during MAR file generation
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 Reporter:  gk                        |          Owner:  tbb-team
     Type:  enhancement               |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by boklm):

 If adding `set -e` globally requires too much changes, maybe we could
 start by setting it only in some parts of the scripts where we run the
 most important commands.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26907#comment:1>
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