Try fixing the 'brew update' issue in bootstrap script (#5400)
* Try fixing the 'brew update' issue in bootstrap script * Add a log message * Add a comment
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@ -127,11 +127,24 @@ fi
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# Suppress output, it's very noisy on travis-ci
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echo "Refreshing Homebrew cache..."
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if ! brew update > /dev/null; then
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for count in {1..2}; do
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# Try the update twice if the first time fails
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brew update > /dev/null && break
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# If the update fails again after increasing the Git buffer size, exit with error.
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if [[ $count == 2 ]]; then
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echo "ERROR: Refreshing Homebrew cache failed..." >&2
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exit 2
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fi
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# The update failed for the first try. An error we see a lot in our CI is "RPC failed; curl 56 SSLRead() return error -36".
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# What 'brew update' does is to fetch the newest version of Homebrew from GitHub using git, and the error comes from git.
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# A potential solution is to increase the Git buffer size to a larger number, say 150 mb. The default buffer size is 1 mb.
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echo "First attempt of update failed. Increase Git buffer size and try again ..."
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git config --global http.postBuffer 157286400
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sleep 5
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done
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# Suppress output, it's very noisy on travis-ci
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if [[ ! -d $(brew --prefix cask) ]]; then
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echo "Installing cask..."
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