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Add OS X sed check to update-submodule.sh #1456

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Merged
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May 10, 2021
Merged

Add OS X sed check to update-submodule.sh #1456

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16 changes: 16 additions & 0 deletions scripts/update-submodule.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,22 @@ set -o errexit
set -o nounset
set -o pipefail

# OS X sed doesn't support "--version". This way we can tell if OS X sed is
# used.
if ! sed --version &>/dev/null; then
# OS X sed and GNU sed aren't compatible with backup flag "-i". Namely
# sed -i ... - does not work on OS X
# sed -i'' ... - does not work on certain OS X versions
# sed -i '' ... - does not work on GNU
echo ">>> OS X sed detected, which may be incompatible with this script. Please install and use GNU sed instead:
$ brew install gnu-sed
$ brew info gnu-sed
# Find the path to the installed gnu-sed and add it to your PATH. The default
# is:
# PATH=\"/Users/\$USER/homebrew/opt/gnu-sed/libexec/gnubin:\$PATH\""
exit 1
fi

repo_root="$(git rev-parse --show-toplevel)"
declare -r repo_root
cd "${repo_root}"
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