1 #!/bin/bash 2 3 # This script is intented to wrap the execution of ninja so that we 4 # can do some checks before each ninja run. 5 # 6 # It can either be run with a standalone Blueprint checkout to generate 7 # the minibp binary, or can be used by another script as part of a custom 8 # Blueprint-based build system. When used by another script, the following 9 # environment variables can be set to configure this script, which are 10 # documented below: 11 # 12 # BUILDDIR 13 # SKIP_NINJA 14 # 15 # When run in a standalone Blueprint checkout, bootstrap.bash will install 16 # this script into the $BUILDDIR, where it may be executed. 17 # 18 # For embedding into a custom build system, the current directory when this 19 # script executes should be the same directory that $BOOTSTRAP should be 20 # called from. 21 22 set -e 23 24 # BUILDDIR should be set to the path to store build results. By default, 25 # this is the directory containing this script, but can be set explicitly 26 # if the custom build system only wants to install their own wrapper. 27 [ -z "$BUILDDIR" ] && BUILDDIR=`dirname "${BASH_SOURCE[0]}"` 28 29 # NINJA should be set to the path of the ninja executable. By default, this 30 # is just "ninja", and will be looked up in $PATH. 31 [ -z "$NINJA" ] && NINJA=ninja 32 33 34 if [ ! -f "${BUILDDIR}/.blueprint.bootstrap" ]; then 35 echo "Please run bootstrap.bash (.blueprint.bootstrap missing)" >&2 36 exit 1 37 fi 38 39 # .blueprint.bootstrap provides saved values from the bootstrap.bash script: 40 # 41 # BOOTSTRAP 42 # BOOTSTRAP_MANIFEST 43 # 44 source "${BUILDDIR}/.blueprint.bootstrap" 45 46 GEN_BOOTSTRAP_MANIFEST="${BUILDDIR}/.minibootstrap/build.ninja.in" 47 if [ -f "${GEN_BOOTSTRAP_MANIFEST}" ]; then 48 if [ "${BOOTSTRAP_MANIFEST}" -nt "${GEN_BOOTSTRAP_MANIFEST}" ]; then 49 "${BOOTSTRAP}" -i "${BOOTSTRAP_MANIFEST}" 50 fi 51 else 52 "${BOOTSTRAP}" -i "${BOOTSTRAP_MANIFEST}" 53 fi 54 55 # Build minibp and the primary build.ninja 56 "${NINJA}" -w dupbuild=err -f "${BUILDDIR}/.minibootstrap/build.ninja" 57 58 # Build the primary builder and the main build.ninja 59 "${NINJA}" -w dupbuild=err -f "${BUILDDIR}/.bootstrap/build.ninja" 60 61 # SKIP_NINJA can be used by wrappers that wish to run ninja themselves. 62 if [ -z "$SKIP_NINJA" ]; then 63 "${NINJA}" -w dupbuild=err -f "${BUILDDIR}/build.ninja" "$@" 64 else 65 exit 0 66 fi 67
