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https://github.com/fort-nix/nix-bitcoin.git
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travis: cache all build outputs with cachix
This further speeds up builds, in particular the modules test in the next commit. By checking if the expected final build output has already been cached, we can even skip the download of cached builds.
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parent
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26
.travis.yml
26
.travis.yml
@ -14,6 +14,9 @@ install:
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- cachix use nix-bitcoin
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- VER="$(nix eval nixpkgs.lib.version)"
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env:
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global:
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# CACHIX_SIGNING_KEY
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- secure: "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"
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jobs:
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- PKG=nodeinfo STABLE=1
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- PKG=hwi STABLE=1
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@ -30,4 +33,25 @@ env:
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- PKG=liquid-swap STABLE=1
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script:
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- printf '%s (%s)\n' "$NIX_PATH" "$VER"
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- nix-build -A $PKG
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- time nix-instantiate -A $PKG --add-root ./drv --indirect
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- outPath=$(nix-store --query ./drv)
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- |
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if nix path-info --store https://nix-bitcoin.cachix.org $outPath &>/dev/null; then
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echo "$outPath" has already been built successfully.
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travis_terminate 0
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fi
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# Travis doesn't expose secrets to pull-request builds,
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# so skip cache uploading in this case
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- |
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if [[ $CACHIX_SIGNING_KEY ]]; then
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cachix push nix-bitcoin --watch-store &
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cachixPid=$!
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fi
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- nix-build ./drv
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- |
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if [[ $CACHIX_SIGNING_KEY ]]; then
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# Wait until cachix has finished uploading
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# Run as root because yama/ptrace_scope != 0
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ruby=$(nix-build '<nixpkgs>' -A ruby)/bin/ruby
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time sudo $ruby helper/wait-for-network-idle.rb $cachixPid
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fi
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29
helper/wait-for-network-idle.rb
Executable file
29
helper/wait-for-network-idle.rb
Executable file
@ -0,0 +1,29 @@
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#!/usr/bin/env ruby
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require 'open3'
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# Wait until the given PID had no network activity for `Timeout` seconds, then exit.
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pid = ARGV.first
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Timeout = 2
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stdin, out, err, wait_thread = Open3.popen3("strace -f -e trace=network -s 1 -q -p #{pid}")
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while IO.select([err], nil, nil, Timeout)
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begin
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out = err.read_nonblock(1 << 10)
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rescue EOFError
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status = wait_thread.value
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if status.success?
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puts "Monitored process #{pid} exited"
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exit 0
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else
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puts "Strace failed with exit code #{status.to_i}. Last output:\n#{out}"
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# strace often fails with code 256 which looks like success to shells. fail with 1 instead.
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exit 1
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end
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end
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end
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# If we exit without an explicit kill,
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# ptrace can fail on reattachment: ptrace(PTRACE_SEIZE, $PID): Operation not permitted
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# Only relevant for testing.
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Process.kill("TERM", wait_thread.pid)
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