98 lines
1.9 KiB
Bash
98 lines
1.9 KiB
Bash
#!/usr/bin/env bash
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#
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# Prints build logs for failed derivations in quiet build mode (-Q).
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# See https://github.com/NixOS/nix/issues/443
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#
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# Usage:
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#
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# nix-build ... -Q ... 2>&1 | whatsupnix [user@target[:port]]
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#
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# Exit Codes:
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#
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# 0 No failed derivations could be found. This either means there where
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# no build errors, or stdin wasn't nix-build output.
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#
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# 1 Usage error; arguments couldn't be parsed.
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#
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# 2 Nix error; input looks like Nix failed.
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#
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# 3 Build error; at least one failed derivation could be found.
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#
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tmpdir=$(mktemp -d --tmpdir whatsupnix.XXXXXXXX)
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failed_drvs=$tmpdir/failed_drvs; touch "$failed_drvs"
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nix_errors=$tmpdir/nix_errors; touch "$nix_errors"
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cleanup() {
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rm "$failed_drvs"
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rm "$nix_errors"
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rmdir "$tmpdir"
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}
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trap cleanup EXIT
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exec >&2
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gawk \
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-v failed_drvs="$failed_drvs" \
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-v nix_errors="$nix_errors" \
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'
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/^(\033\[31;1m)?error:/ {
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print $0 >> nix_errors
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}
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match($0, /^builder for ‘(\/nix\/store\/[^’]+\.drv)’ failed/, m) {
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print m[1] >> failed_drvs
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}
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{ print $0; fflush("/dev/stdout") }
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'
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case $# in
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0)
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print_log() {
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NIX_PAGER= nix-store -l "$1"
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}
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;;
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1)
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remote_user=${1%%@*}
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if test "$remote_user" = "$1"; then
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remote_user=root
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else
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set -- "${1#$remote_user@}"
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fi
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remote_port=${1##*:}
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if test "$remote_port" = "$1"; then
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remote_port=22
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else
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set -- "${1%:$remote_port}"
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fi
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remote_host=$1
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print_log() {
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ssh "$remote_user@$remote_host" -p "$remote_port" \
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env NIX_PAGER= nix-store -l "$1"
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}
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;;
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*)
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echo "usage: whatsupnix [[USER@]HOST[:PORT]]" >&2
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exit 1
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esac
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while read -r drv; do
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title="** FAILED $drv LOG **"
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frame=${title//?/*}
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echo "$frame"
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echo "$title"
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echo "$frame"
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echo
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print_log "$drv"
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echo
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done < "$failed_drvs"
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if test -s "$nix_errors"; then
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exit 2
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elif test -s "$failed_drvs"; then
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exit 3
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else
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exit 0
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fi
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