diff options
Diffstat (limited to 'bootstrap')
| -rwxr-xr-x | bootstrap | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/bootstrap b/bootstrap new file mode 100755 index 0000000..0458945 --- /dev/null +++ b/bootstrap @@ -0,0 +1,250 @@ +#! /usr/bin/env bash + +# @@ Do we really want to require PDF doc generation? This will unlikely +# work anywhere except Linux. Maybe we should only distribute .xhtml +# and only generate PDFs for web publishing? Maybe decide when moving +# to ad hoc rules? + +# Boostrap the build2 development environment. +# +# Note that this script runs git-update-index commands specified in the +# README-GIT files of cloned repositories. +# +# This script assumes the following steps have been performed: +# +# 1. The latest staged toolchain has been temporarily installed somewhere +# other than /usr/local (e.g., /tmp/build2) and is in PATH. +# +# 2. The CLI and ODB compilers have been built and are either installed (if +# you don't plan to contribute to them) or symlinked in /usr/local/bin/. +# For the latter case it would typically go to ~/work/{cli,odb/}, for +# example (for CLI; note: remove sanitizers for ODB): +# +# NOTE: clone using the git.codesynthesis.com:/var/scm/cli/cli.git SSH +# URL for rw access. +# +# mkdir -p ~/work/cli +# cd ~/work/cli +# git clone --recursive https://git.codesynthesis.com/cli/cli.git +# cd cli +# bdep init -C ../builds/gccN-asan @gccN-asan cc \ +# config.cxx=g++-N \ +# config.cc.coptions="-Wall -Wextra -Werror -g3 -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer" +# b +# sudo ln -s "$(pwd)/cli/cli /usr/local/bin/cli" +# which cli +# cli --version +# +# Once this is done, you should be able to: +# +# mkdir -p ~/work/build2 +# cd ~/work/build2 +# git clone --recursive https://git.build2.org/etc.git +# PATH="/tmp/build2/bin:$PATH" etc/bootstrap +# +# NOTE: use the git.build2.org:/var/scm/etc.git SSH URL and pass the +# --ssh bootstrap option for rw access. +# +# After a successful bootstrap you can remove the staged toolchain. +# +# Options: +# +# --ssh +# Use SSH URL for cloning (rw access). +# +# --no-symlink +# Do not create executable symlinks in /usr/local/bin/. +# +# --no-clone +# Do not clone the repositories or build the bootstrap build system +# (b-boot) assuming this has already been done. This option is primarily +# useful for initializing additional configurations (e.g., Clang in +# addition to GCC). +# +# --cxx +# --cfg +# C++ compiler to use and the corresponding build configuration name, for +# example, g++-9/gcc9 or clang++-8/clang8; g++/gcc by default. +# +owd="$(pwd)" +trap "{ cd '$owd'; exit 1; }" ERR +set -o errtrace # Trap in functions. + +function info () { echo "$*" 1>&2; } +function error () { info "$*"; exit 1; } + +# Run a command with tracing (similar to set -x). +# +# Note that this function will execute a command with arguments that contain +# spaces but it will not print them as quoted (and neither does set -x). +# +function run () +{ + echo "+ $@" 1>&2 + "$@" +} + +# Make sure the necessary tools are runnable. +# +cli --version >/dev/null +odb --version >/dev/null +b --version >/dev/null +bpkg --version >/dev/null +bdep --version >/dev/null + +url="https://git.build2.org" +sym=true +clone=true +cxx=g++ +cfg=gcc + +while [ $# -gt 0 ]; do + case $1 in + --ssh) + url="git.build2.org:/var/scm" + shift + ;; + --no-symlink) + sym= + shift + ;; + --no-clone) + clone= + shift + ;; + --cxx) + shift + cxx="$1" + shift + ;; + --cfg) + shift + cfg="$1" + shift + ;; + *) + error "unexpected $1" + ;; + esac +done + +function git_clone () # <url> +{ + local u d l + + u="$1" + d="$(basename -s .git "$u")" + + run git clone --recursive "$u" + + # Run git-update-index commands from README-GIT. + # + if [ -f "$d/README-GIT" ]; then + run cd "$d" + l= + while read l || [ -n "$l" ]; do + info "+ $l" + eval $l + done < <(sed -rn -e 's/^(git update-index .+)/\1/p' README-GIT) + run cd - + fi + + # Generate documentation (currently and temporarily handled with a script). + # + if [ -f "$d/doc/cli.sh" ]; then + run cd "$d/doc" + run ./cli.sh + run cd - + fi +} + +if [ "$clone" ]; then + git_clone "$url/libbutl.git" + git_clone "$url/build2.git" + + git_clone "$url/libbpkg.git" + git_clone "$url/bpkg.git" + git_clone "$url/bdep.git" + + # Build the bootstrap build system (b-boot). + # + run cd build2 + run make -f bootstrap.gmake CXX="$cxx" CXXFLAGS=-O3 -j 8 + run make -f bootstrap.gmake CXX="$cxx" CXXFLAGS=-O3 cleano # Cleanup objs. + run build2/b-boot --version + run cd - +fi + +# @@ TODO: make build system configuration ASAN/TSAN configurable. +# +# ASAN: -g3 -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer +# TSAN: -g3 -fsanitize=thread + +run mkdir -p builds + +# Build system configuration. +# +run bpkg create -d "builds/$cfg-asan-bs" cc cli \ + config.cxx="$cxx" \ + config.cc.coptions="-Wall -Wextra -Werror -g3 -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer" \ + config.cc.loptions="-fuse-ld=gold -Wl,--threads,--thread-count,4" \ + config.install.root=/tmp/install config.dist.root=/tmp/dist + +run bdep init -d libbutl -A "builds/$cfg-asan-bs" "@$cfg-asan-bs" --no-default +run bdep init -d build2 -A "builds/$cfg-asan-bs" "@$cfg-asan-bs" + +run b build2/build2/ +run build2/build2/b --version + +# Package manager (and the rest of the toolchain) configuration. +# +run bpkg create -d "builds/$cfg-asan-pm" cc cli \ + config.cxx="$cxx" \ + config.cc.coptions="-Wall -Wextra -Werror -g3 -fsanitize=address -fsanitize=undefined -fno-omit-frame-pointer" \ + config.cc.loptions="-fuse-ld=gold -Wl,--threads,--thread-count,4" \ + config.install.root=/tmp/install config.dist.root=/tmp/dist + +run bdep init -d libbutl -A "builds/$cfg-asan-pm" "@$cfg-asan-pm" --default +run bdep init -d libbpkg -A "builds/$cfg-asan-pm" "@$cfg-asan-pm" +run bdep init -d bpkg -A "builds/$cfg-asan-pm" "@$cfg-asan-pm" +run bdep init -d bdep -A "builds/$cfg-asan-pm" "@$cfg-asan-pm" + +# Generate database support (currently and temporarily handled with a script). +# +# Note: this has to be done after bdep-init since we need the libodb headers. +# We also have to pre-update version headers. +# +run bpkg update -d builds/$cfg-asan-pm libodb +run b "builds/$cfg-asan-pm/libbutl/libbutl/hxx{version}" +run b "builds/$cfg-asan-pm/libbpkg/libbpkg/hxx{version}" +run b "builds/$cfg-asan-pm/bpkg/bpkg/hxx{version common-options}" +run b "builds/$cfg-asan-pm/bdep/bdep/hxx{version common-options project-options}" + +run cd bpkg/bpkg +run ./odb.sh +run cd - + +run cd bdep/bdep +run ./odb.sh +run cd - + +run b bpkg/bpkg/ bdep/bdep/ +run bpkg/bpkg/bpkg --version +run bdep/bdep/bdep --version + +# Add symlinks. +# +if [ "$sym" ]; then + run sudo ln -s "$owd/build2/build2/b" /usr/local/bin/b + run sudo ln -s "$owd/build2/build2/b-boot" /usr/local/bin/b-boot + run sudo ln -s "$owd/bpkg/bpkg/bpkg" /usr/local/bin/bpkg + run sudo ln -s "$owd/bdep/bdep/bdep" /usr/local/bin/bdep + + run export PATH="/usr/local/bin:$PATH" + run which b bpkg bdep + + # Re-run update using the bootstrapped toolchain (normally should be a + # noop). + # + run b build2/build2/ bpkg/bpkg/ bdep/bdep/ +fi |