| #!/bin/bash |
| |
| # This script is intented to wrap the execution of ninja so that we |
| # can do some checks before each ninja run. |
| # |
| # It can either be run with a standalone Blueprint checkout to generate |
| # the minibp binary, or can be used by another script as part of a custom |
| # Blueprint-based build system. When used by another script, the following |
| # environment variables can be set to configure this script, which are |
| # documented below: |
| # |
| # BUILDDIR |
| # SKIP_NINJA |
| # |
| # When run in a standalone Blueprint checkout, bootstrap.bash will install |
| # this script into the $BUILDDIR, where it may be executed. |
| # |
| # For embedding into a custom build system, the current directory when this |
| # script executes should be the same directory that $BOOTSTRAP should be |
| # called from. |
| |
| set -e |
| |
| # BUILDDIR should be set to the path to store build results. By default, |
| # this is the directory containing this script, but can be set explicitly |
| # if the custom build system only wants to install their own wrapper. |
| [ -z "$BUILDDIR" ] && BUILDDIR=`dirname "${BASH_SOURCE[0]}"` |
| |
| # NINJA should be set to the path of the ninja executable. By default, this |
| # is just "ninja", and will be looked up in $PATH. |
| [ -z "$NINJA" ] && NINJA=ninja |
| |
| |
| if [ ! -f "${BUILDDIR}/.blueprint.bootstrap" ]; then |
| echo "Please run bootstrap.bash (.blueprint.bootstrap missing)" >&2 |
| exit 1 |
| fi |
| |
| # .blueprint.bootstrap provides saved values from the bootstrap.bash script: |
| # |
| # BOOTSTRAP |
| # BOOTSTRAP_MANIFEST |
| # |
| source "${BUILDDIR}/.blueprint.bootstrap" |
| |
| GEN_BOOTSTRAP_MANIFEST="${BUILDDIR}/.minibootstrap/build.ninja.in" |
| if [ -f "${GEN_BOOTSTRAP_MANIFEST}" ]; then |
| if [ "${BOOTSTRAP_MANIFEST}" -nt "${GEN_BOOTSTRAP_MANIFEST}" ]; then |
| "${BOOTSTRAP}" -i "${BOOTSTRAP_MANIFEST}" |
| fi |
| else |
| "${BOOTSTRAP}" -i "${BOOTSTRAP_MANIFEST}" |
| fi |
| |
| # Build minibp and the primary build.ninja |
| "${NINJA}" -w dupbuild=err -f "${BUILDDIR}/.minibootstrap/build.ninja" |
| |
| # Build the primary builder and the main build.ninja |
| "${NINJA}" -w dupbuild=err -f "${BUILDDIR}/.bootstrap/build.ninja" |
| |
| # SKIP_NINJA can be used by wrappers that wish to run ninja themselves. |
| if [ -z "$SKIP_NINJA" ]; then |
| "${NINJA}" -w dupbuild=err -f "${BUILDDIR}/build.ninja" "$@" |
| else |
| exit 0 |
| fi |