mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-02-03 09:56:38 -05:00
360a9e0ad5
This bump will includes a couple of commits which improve the reproducibility of the mingw-w64 toolchain. Most of which came from debian. They will be upstreamed as upstream Guix release timeline allows.
101 lines
4.6 KiB
Bash
Executable file
101 lines
4.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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export LC_ALL=C
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set -e -o pipefail
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# Determine the maximum number of jobs to run simultaneously (overridable by
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# environment)
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MAX_JOBS="${MAX_JOBS:-$(nproc)}"
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# Download the depends sources now as we won't have internet access in the build
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# container
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make -C "${PWD}/depends" -j"$MAX_JOBS" download ${V:+V=1} ${SOURCES_PATH:+SOURCES_PATH="$SOURCES_PATH"}
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# Determine the reference time used for determinism (overridable by environment)
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SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(git log --format=%at -1)}"
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# Execute "$@" in a pinned, possibly older version of Guix, for reproducibility
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# across time.
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time-machine() {
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guix time-machine --url=https://github.com/dongcarl/guix.git \
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--commit=cf347affd642c709f7e423f7111794ffdb09f5a6 \
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-- "$@"
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}
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# Deterministically build Bitcoin Core for HOSTs (overriable by environment)
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# shellcheck disable=SC2153
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for host in ${HOSTS=x86_64-linux-gnu arm-linux-gnueabihf aarch64-linux-gnu riscv64-linux-gnu x86_64-w64-mingw32}; do
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# Display proper warning when the user interrupts the build
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trap 'echo "** INT received while building ${host}, you may want to clean up the relevant output and distsrc-* directories before rebuilding"' INT
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(
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# Required for 'contrib/guix/manifest.scm' to output the right manifest
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# for the particular $HOST we're building for
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export HOST="$host"
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# Run the build script 'contrib/guix/libexec/build.sh' in the build
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# container specified by 'contrib/guix/manifest.scm'.
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#
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# Explanation of `guix environment` flags:
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#
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# --container run command within an isolated container
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#
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# Running in an isolated container minimizes build-time differences
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# between machines and improves reproducibility
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#
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# --pure unset existing environment variables
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#
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# Same rationale as --container
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#
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# --no-cwd do not share current working directory with an
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# isolated container
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#
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# When --container is specified, the default behavior is to share
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# the current working directory with the isolated container at the
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# same exact path (e.g. mapping '/home/satoshi/bitcoin/' to
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# '/home/satoshi/bitcoin/'). This means that the $PWD inside the
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# container becomes a source of irreproducibility. --no-cwd disables
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# this behaviour.
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#
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# --share=SPEC for containers, share writable host file system
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# according to SPEC
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#
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# --share="$PWD"=/bitcoin
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#
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# maps our current working directory to /bitcoin
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# inside the isolated container, which we later cd
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# into.
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#
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# While we don't want to map our current working directory to the
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# same exact path (as this introduces irrepreducibility), we do want
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# it to be at a _fixed_ path _somewhere_ inside the isolated
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# container so that we have something to build. '/bitcoin' was
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# chosen arbitrarily.
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#
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# ${SOURCES_PATH:+--share="$SOURCES_PATH"}
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#
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# make the downloaded depends sources path available
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# inside the isolated container
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#
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# The isolated container has no network access as it's in a
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# different network namespace from the main machine, so we have to
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# make the downloaded depends sources available to it. The sources
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# should have been downloaded prior to this invocation.
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#
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# shellcheck disable=SC2086
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time-machine environment --manifest="${PWD}/contrib/guix/manifest.scm" \
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--container \
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--pure \
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--no-cwd \
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--share="$PWD"=/bitcoin \
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${SOURCES_PATH:+--share="$SOURCES_PATH"} \
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${ADDITIONAL_GUIX_ENVIRONMENT_FLAGS} \
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-- env HOST="$host" \
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MAX_JOBS="$MAX_JOBS" \
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SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:?unable to determine value}" \
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${V:+V=1} \
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${SOURCES_PATH:+SOURCES_PATH="$SOURCES_PATH"} \
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bash -c "cd /bitcoin && bash contrib/guix/libexec/build.sh"
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)
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done
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