Add support for build hooks

The following buildfiles are loaded (if present) at appropriate times from the
out_root subdirectories of a project:

build/bootstrap/pre-*.build   # before loading bootstrap.build
build/bootstrap/post-*.build  # after  loading bootstrap.build
build/root/pre-*.build        # before loading root.build
build/root/post-*.build       # after  loading root.build

2 files changed, 35 insertions, 0 deletions

diff --git a/tests/hooks/buildfile b/tests/hooks/buildfile
new file mode 100644
index 0000000..c951d56
--- /dev/null
+++ b/tests/hooks/buildfile
@@ -0,0 +1,5 @@
+# file      : tests/hooks/buildfile
+# copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+# license   : MIT; see accompanying LICENSE file
+
+./: test{testscript} $b
diff --git a/tests/hooks/testscript b/tests/hooks/testscript
new file mode 100644
index 0000000..7ad8028
--- /dev/null
+++ b/tests/hooks/testscript
@@ -0,0 +1,30 @@
+# file      : tests/hooks/testscript
+# copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+# license   : MIT; see accompanying LICENSE file
+
+.include ../common.test
+
++cat <'print bootstrap'  >+build/bootstrap.build
++cat <'print root'       >=build/root.build
+
++mkdir build/bootstrap
++cat <'print pre-bootstrap'  >=build/bootstrap/pre-bootstrap.build
++cat <'print post-bootstrap' >=build/bootstrap/post-bootstrap.build
+
++mkdir build/root
++cat <'print pre-root'  >=build/root/pre-root.build
++cat <'print post-root' >=build/root/post-root.build
+
+: basics
+:
+$* <<EOI >>EOO
+print buildfile
+EOI
+pre-bootstrap
+bootstrap
+post-bootstrap
+pre-root
+root
+post-root
+buildfile
+EOO