46f7add84c
It seems that bash is unable to propagate the SIGINT while reading from the FIFO. This fixes the anoying ^C^C^C problems found when running garlicd.
81 lines
1.6 KiB
Bash
Executable File
81 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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set -e
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msg() {
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>&2 echo "garlicd: $@"
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}
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if [ ! -z "$1" ]; then
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>&2 echo "usage: garlicd"
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exit 1
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fi
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export PATH="@extraPath@:$PATH"
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garlic_sandbox=$(nix show-config |\
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grep extra-sandbox-paths |\
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grep -o '/garlic=[^ ]*' || true)
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if [ -z "$garlic_sandbox" ]; then
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msg "Missing extra-sandbox-paths /garlic mountpoint"
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msg "Check the ~/.config/nix/nix.conf file"
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exit 1
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fi
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mountdir_rel=$(echo "$garlic_sandbox" | sed 's@^/garlic=@@g')
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mountdir=$(readlink -f "$mountdir_rel")
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run="$mountdir/run"
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completed="$mountdir/completed"
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wipe="$mountdir/wipe"
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handle_bad_signal() {
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msg "cleaning FIFO pipes"
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rm -f "$run" "$completed" "$wipe"
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exit 1
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}
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trap handle_bad_signal SIGINT
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for fifo in "$run" "$completed" "$wipe"; do
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if [ ! -e "$fifo" ]; then
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mkfifo "$fifo"
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# FIXME: Use more resctrictive permissions
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chmod 666 "$fifo"
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fi
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done
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while true; do
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msg "Waiting for experiments ..."
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tre=$(head -1 "$run")
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msg "Attempting to run: $tre"
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msg "Copying files to MN4..."
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# It fails if the user doesn't have nix-store, but is already copied
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# with the post build hook
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nix copy --to ssh://mn1 $tre || true
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msg "Launching the experiment..."
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garlic -R "$tre"
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msg "Fetching results..."
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garlic -FKv "$tre"
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echo -n "$tre" >> "$completed"
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msg "Waiting for nix to finish the build..."
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tre2=$(head -1 "$wipe")
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if [ "$tre" != "$tre2" ]; then
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msg "error: trebuchet mismatch"
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exit 1
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fi
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msg "Removing temporal files..."
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garlic -D "$tre"
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echo -n "$tre" >> "$completed"
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msg "Execution completed :-)"
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done
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