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fix(updater): stop update if connection unavailable
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commit
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1 changed files with 19 additions and 6 deletions
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@ -54,14 +54,27 @@ function is_update_available() {
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[[ "$repo" = ohmyzsh/ohmyzsh ]] || return 0
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local api_url="https://api.github.com/repos/${repo}/commits/${branch}"
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# Get local and remote HEADs and compare them. If we can't get either assume there are updates
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local local_head remote_head
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# Get local HEAD. If this fails assume there are updates
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local local_head
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local_head=$(git -C "$ZSH" rev-parse $branch 2>/dev/null) || return 0
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remote_head=$(curl -fsSL -H 'Accept: application/vnd.github.v3.sha' $api_url 2>/dev/null) \
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|| remote_head=$(wget -O- --header='Accept: application/vnd.github.v3.sha' $api_url 2>/dev/null) \
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|| remote_head=$(HTTP_ACCEPT='Accept: application/vnd.github.v3.sha' fetch -o - $api_url 2>/dev/null) \
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|| return 0
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# Get remote HEAD. If we can't get it assume there are updates unless there is no connection:
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# - curl: 6 (could not resolve) or 7 (could not connect)
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# - wget: 4 (network unreachable)
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# - fetch: 1 (no route to host)
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local remote_head ret
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remote_head=$(
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curl -fsSL -H 'Accept: application/vnd.github.v3.sha' $api_url 2>/dev/null || {
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[[ $? -eq 6 || $? -eq 7 ]] && exit 1
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} || wget -O- --header='Accept: application/vnd.github.v3.sha' $api_url 2>/dev/null || {
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[[ $? -eq 4 ]] && exit 1
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} || HTTP_ACCEPT='Accept: application/vnd.github.v3.sha' fetch -o - $api_url 2>/dev/null || {
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[[ $? -eq 1 ]] && exit 1
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} || exit 0
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)
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# If can't fetch remote HEAD, return exit code
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ret=$?; [[ -n "$remote_head" ]] || return $ret
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# Compare local and remote HEADs
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[[ "$local_head" != "$remote_head" ]]
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