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travis: Use $(...) instead `...` in bash scripts 

It's encouraged to use version with $(...).
    Backtick command substitution `...` is legacy
    syntax with several issues.

   1. It has a series of undefined behaviors related to quoting in POSIX.
   2. It imposes a custom escaping mode with surprising results.
   3. It's exceptionally hard to nest.

   ~https://github.com/koalaman/shellcheck/wiki/SC2006

Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
This commit is contained in:
Karol Trzcinski 2020-09-23 07:59:39 +02:00 committed by Liam Girdwood
parent e67d68e8e1
commit e29baaa8b9
1 changed files with 1 additions and 1 deletions
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.travis.yml
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@ -12,4 +12,4 @@ jobs:
before_install: docker pull thesofproject/sof && docker tag thesofproject/sof sof
script:
- echo -e '#!/bin/bash\nmkdir build && cd build && cmake .. && make -Werror -Wall -Wmissing-prototypes -Wimplicit-fallthrough=3 -Wpointer-arith' > build.sh && chmod +x build.sh
- docker run -i -t -v `pwd`:/home/sof/work/sof.git --user `id -u` sof ./build.sh
- docker run -i -t -v $(pwd):/home/sof/work/sof.git --user $(id -u) sof ./build.sh