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#   NINJA
14#   SKIP_NINJA
15#
16# When run in a standalone Blueprint checkout, bootstrap.bash will install
17# this script into the $BUILDDIR, where it may be executed.
18#
19# For embedding into a custom build system, the current directory when this
20# script executes should be the same directory that $BOOTSTRAP should be
21# called from.
22
23set -e
24
25# BUILDDIR should be set to the path to store build results. By default,
26# this is the directory containing this script, but can be set explicitly
27# if the custom build system only wants to install their own wrapper.
28[ -z "$BUILDDIR" ] && BUILDDIR=`dirname "${BASH_SOURCE[0]}"`
29
30# NINJA should be set to the path of the ninja executable. By default, this
31# is just "ninja", and will be looked up in $PATH.
32[ -z "$NINJA" ] && NINJA=ninja
33
34
35if [ ! -f "${BUILDDIR}/.blueprint.bootstrap" ]; then
36    echo "Please run bootstrap.bash (.blueprint.bootstrap missing)" >&2
37    exit 1
38fi
39
40# .blueprint.bootstrap provides saved values from the bootstrap.bash script:
41#
42#   BLUEPRINT_BOOTSTRAP_VERSION
43#   BLUEPRINTDIR
44#   SRCDIR
45#   GOROOT
46#
47source "${BUILDDIR}/.blueprint.bootstrap"
48
49if [ -z "$BLUEPRINTDIR" ]; then
50    echo "Please run bootstrap.bash (.blueprint.bootstrap outdated)" >&2
51    exit 1
52fi
53
54source "${BLUEPRINTDIR}/blueprint_impl.bash"
55