nim-libp2p/scripts/build_nim.sh

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#!/usr/bin/env bash
# used in Travis CI and AppVeyor scripts
# Copyright (c) 2018-2020 Status Research & Development GmbH. Licensed under
# either of:
# - Apache License, version 2.0
# - MIT license
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
set -e
# Git commits
: ${CSOURCES_V1_COMMIT:=a8a5241f9475099c823cfe1a5e0ca4022ac201ff}
: ${CSOURCES_V2_COMMIT:=86742fb02c6606ab01a532a0085784effb2e753e}
: ${CSOURCES_V1_REPO:=https://github.com/nim-lang/csources_v1.git}
: ${CSOURCES_V2_REPO:=https://github.com/nim-lang/csources_v2.git}
# After this Nim commit, use csources v2
: ${CSOURCES_V2_START_COMMIT:=f7c203fb6c89b5cef83c4f326aeb23ef8c4a2c40}
: ${NIMBLE_COMMIT:=3575fd54a890d910ace56678aa74b4237d604175} # 0.14.2
# NIM_COMMIT could be a (partial) commit hash, a tag, a branch name, etc. Empty by default.
NIM_COMMIT_HASH="" # full hash for NIM_COMMIT, retrieved in "nim_needs_rebuilding()"
# script arguments
[[ $# -ne 4 ]] && { echo "Usage: $0 nim_dir csources_dir nimble_dir ci_cache_dir"; exit 1; }
NIM_DIR="$1"
CSOURCES_DIR="$2" # can be relative to NIM_DIR
NIMBLE_DIR="$3" # can be relative to NIM_DIR
CI_CACHE="$4"
## env vars
# verbosity level
[[ -z "$V" ]] && V=0
[[ -z "$CC" ]] && CC="gcc"
# to build csources in parallel, set MAKE="make -jN"
[[ -z "$MAKE" ]] && MAKE="make"
# for 32-bit binaries on a 64-bit host
UCPU=""
[[ "$ARCH_OVERRIDE" == "x86" ]] && UCPU="ucpu=i686"
[[ -z "$NIM_BUILD_MSG" ]] && NIM_BUILD_MSG="Building the Nim compiler"
[[ -z "$QUICK_AND_DIRTY_COMPILER" ]] && QUICK_AND_DIRTY_COMPILER=0
[[ -z "$QUICK_AND_DIRTY_NIMBLE" ]] && QUICK_AND_DIRTY_NIMBLE=0
# Windows detection
if uname | grep -qiE "mingw|msys"; then
ON_WINDOWS=1
EXE_SUFFIX=".exe"
# otherwise it fails in AppVeyor due to https://github.com/git-for-windows/git/issues/2495
GIT_TIMESTAMP_ARG="--date=unix" # available since Git 2.9.4
else
ON_WINDOWS=0
EXE_SUFFIX=""
GIT_TIMESTAMP_ARG="--date=format-local:%s" # available since Git 2.7.0
fi
NIM_BINARY="${NIM_DIR}/bin/nim${EXE_SUFFIX}"
MAX_NIM_BINARIES="10" # Old ones get deleted.
nim_needs_rebuilding() {
REBUILD=0
NO_REBUILD=1
echo "Nim is being rebuilt..."
if [[ ! -e "$NIM_DIR" ]]; then
# Shallow clone, optimised for the default NIM_COMMIT value.
git clone -q --depth=1 https://github.com/status-im/Nim.git "$NIM_DIR"
fi
pushd "${NIM_DIR}" >/dev/null
if [[ -n "${NIM_COMMIT}" ]]; then
# support old Git versions, like the one from Ubuntu-18.04
git restore . 2>/dev/null || git reset --hard
if ! git checkout -q ${NIM_COMMIT} 2>/dev/null; then
# Pay the price for a non-default NIM_COMMIT here, by fetching everything.
# (This includes upstream branches and tags that might be missing from our fork.)
git remote add upstream https://github.com/nim-lang/Nim
git fetch --all --tags --quiet
git checkout -q ${NIM_COMMIT}
fi
# In case the local branch diverged and a fast-forward merge is not possible.
git fetch || true
git reset -q --hard origin/${NIM_COMMIT} 2>/dev/null || true
# In case NIM_COMMIT is a local branch that's behind the remote one it's tracking.
git pull -q 2>/dev/null || true
git checkout -q ${NIM_COMMIT}
# We can't use "rev-parse" here, because it would return the tag object's
# hash instead of the commit hash, when NIM_COMMIT is a tag.
NIM_COMMIT_HASH="$(git rev-list -n 1 ${NIM_COMMIT})"
else
# NIM_COMMIT is empty, so assume the commit we need is already checked out
NIM_COMMIT_HASH="$(git rev-list -n 1 HEAD)"
fi
popd >/dev/null
if [[ -n "$CI_CACHE" && -d "$CI_CACHE" ]]; then
cp -a "$CI_CACHE"/* "$NIM_DIR"/bin/ || true # let this one fail with an empty cache dir
fi
# Delete old Nim binaries, to put a limit on how much storage we use.
for F in "$(ls -t "${NIM_DIR}"/bin/nim_commit_* 2>/dev/null | tail -n +$((MAX_NIM_BINARIES + 1)))"; do
if [[ -e "${F}" ]]; then
rm "${F}"
fi
done
# Compare the last built commit to the one requested.
# Handle the scenario where our symlink is manually deleted by the user.
if [[ -e "${NIM_DIR}/bin/last_built_commit" && \
-e "${NIM_DIR}/bin/nim${EXE_SUFFIX}" && \
"$(cat "${NIM_DIR}/bin/last_built_commit")" == "${NIM_COMMIT_HASH}" ]]; then
return $NO_REBUILD
elif [[ -e "${NIM_DIR}/bin/nim_commit_${NIM_COMMIT_HASH}" ]]; then
# we built the requested commit in the past, so we simply reuse it
rm -f "${NIM_DIR}/bin/nim${EXE_SUFFIX}"
ln -s "nim_commit_${NIM_COMMIT_HASH}" "${NIM_DIR}/bin/nim${EXE_SUFFIX}"
echo ${NIM_COMMIT_HASH} > "${NIM_DIR}/bin/last_built_commit"
return $NO_REBUILD
else
return $REBUILD
fi
}
build_nim() {
echo -e "$NIM_BUILD_MSG"
[[ "$V" == "0" ]] && exec &>/dev/null
# working directory
pushd "$NIM_DIR"
if grep -q skipIntegrityCheck koch.nim; then
# Run Nim buildchain
. ci/funs.sh
NIMCORES=1 nimBuildCsourcesIfNeeded $UCPU
bin/nim c --noNimblePath --skipUserCfg --skipParentCfg --warnings:off --hints:off koch
./koch --skipIntegrityCheck boot -d:release --skipUserCfg --skipParentCfg --warnings:off --hints:off
if [[ "${QUICK_AND_DIRTY_COMPILER}" == "0" ]]; then
# We want tools
./koch tools -d:release --skipUserCfg --skipParentCfg --warnings:off --hints:off
elif [[ "${QUICK_AND_DIRTY_NIMBLE}" != "0" ]]; then
# We just want nimble
./koch nimble -d:release --skipUserCfg --skipParentCfg --warnings:off --hints:off
fi
else
# Custom buildchain for older versions
# TODO Remove this once the default NIM_COMMIT supports `--skipIntegrityCheck`
# We will still be able to compile older versions by removing the flag,
# which will just waste a bit of CPU
echo "Building with custom buildchain"
# Git repos for csources and Nimble
if [[ ! -d "$CSOURCES_DIR" ]]; then
if git merge-base --is-ancestor $CSOURCES_V2_START_COMMIT $NIM_COMMIT_HASH; then
CSOURCES_REPO=$CSOURCES_V2_REPO
CSOURCES_COMMIT=$CSOURCES_V2_COMMIT
else
CSOURCES_REPO=$CSOURCES_V1_REPO
CSOURCES_COMMIT=$CSOURCES_V1_COMMIT
fi
mkdir -p "$CSOURCES_DIR"
pushd "$CSOURCES_DIR"
git clone $CSOURCES_REPO .
git checkout $CSOURCES_COMMIT
popd
fi
if [[ "$CSOURCES_DIR" != "csources" ]]; then
rm -rf csources
ln -s "$CSOURCES_DIR" csources
fi
if [[ ! -d "$NIMBLE_DIR" ]]; then
mkdir -p "$NIMBLE_DIR"
pushd "$NIMBLE_DIR"
git clone https://github.com/nim-lang/nimble.git .
git checkout $NIMBLE_COMMIT
# we have to delete .git or koch.nim will checkout a branch tip, overriding our target commit
rm -rf .git
popd
fi
if [[ "$NIMBLE_DIR" != "dist/nimble" ]]; then
mkdir -p dist
rm -rf dist/nimble
ln -s ../"$NIMBLE_DIR" dist/nimble
fi
# bootstrap the Nim compiler and build the tools
rm -f bin/{nim,nim_csources}
pushd csources
if [[ "$ON_WINDOWS" == "0" ]]; then
$MAKE $UCPU clean
$MAKE $UCPU LD=$CC
else
$MAKE myos=windows $UCPU clean
$MAKE myos=windows $UCPU CC=gcc LD=gcc
fi
popd
if [[ -e csources/bin ]]; then
rm -f bin/nim bin/nim_csources
cp -a csources/bin/nim bin/nim
cp -a csources/bin/nim bin/nim_csources
rm -rf csources/bin
else
cp -a bin/nim bin/nim_csources
fi
if [[ "$QUICK_AND_DIRTY_COMPILER" == "0" ]]; then
sed \
-e 's/koch$/--warnings:off --hints:off koch/' \
-e 's/koch boot/koch boot --warnings:off --hints:off/' \
-e '/nimBuildCsourcesIfNeeded/d' \
build_all.sh > build_all_custom.sh
sh build_all_custom.sh
rm build_all_custom.sh
else
# Don't re-build it multiple times until we get identical
# binaries, like "build_all.sh" does. Don't build any tools
# either. This is all about build speed, not developer comfort.
bin/nim_csources \
c \
--compileOnly \
--nimcache:nimcache \
-d:release \
--skipUserCfg \
--skipParentCfg \
--warnings:off \
--hints:off \
compiler/nim.nim
bin/nim_csources \
jsonscript \
--nimcache:nimcache \
--skipUserCfg \
--skipParentCfg \
compiler/nim.nim
cp -a compiler/nim bin/nim1
# If we stop here, we risk ending up with a buggy compiler:
# https://github.com/status-im/nimbus-eth2/pull/2220
# https://github.com/status-im/nimbus-eth2/issues/2310
bin/nim1 \
c \
--compileOnly \
--nimcache:nimcache \
-d:release \
--skipUserCfg \
--skipParentCfg \
--warnings:off \
--hints:off \
compiler/nim.nim
bin/nim1 \
jsonscript \
--nimcache:nimcache \
--skipUserCfg \
--skipParentCfg \
compiler/nim.nim
rm -f bin/nim
cp -a compiler/nim bin/nim
rm bin/nim1
# Do we want Nimble in this quick build?
if [[ "${QUICK_AND_DIRTY_NIMBLE}" != "0" ]]; then
bin/nim c -d:release --noNimblePath --skipUserCfg --skipParentCfg dist/nimble/src/nimble.nim
mv dist/nimble/src/nimble bin/
fi
fi
fi
if [[ "$QUICK_AND_DIRTY_COMPILER" == "0" || "${QUICK_AND_DIRTY_NIMBLE}" != "0" ]]; then
# Nimble needs a CA cert
rm -f bin/cacert.pem
curl -LsS -o bin/cacert.pem https://curl.se/ca/cacert.pem || echo "Warning: 'curl' failed to download a CA cert needed by Nimble. Ignoring it."
fi
# record the built commit
echo ${NIM_COMMIT_HASH} > bin/last_built_commit
# create the symlink
mv bin/nim bin/nim_commit_${NIM_COMMIT_HASH}
ln -s nim_commit_${NIM_COMMIT_HASH} bin/nim${EXE_SUFFIX}
# update the CI cache
popd # we were in $NIM_DIR
if [[ -n "$CI_CACHE" ]]; then
rm -rf "$CI_CACHE"
mkdir "$CI_CACHE"
cp "$NIM_DIR"/bin/* "$CI_CACHE"/
fi
}
if nim_needs_rebuilding; then
build_nim
fi