Add do-build script to run tests.

This script is almost too trivial to check in, but it leaves files
named like
  CHECK.release-3.11-181-g2ab8763
with regression test output, which is helpful when trouble arises.

2 files changed, 24 insertions, 0 deletions

diff --git a/devtools/README b/devtools/README
index b12bfae2..41886497 100644
--- a/devtools/README
+++ b/devtools/README
@@ -29,6 +29,11 @@ on the Debian porter boxes. dchroot only accepts one command
 as argument, nothing else. This wrapper creates a temporary script
 which will be executed then.
 
+== do-build ==
+
+Very simple wrapper around scons clean, build, and check, saving
+output in a file named with "git describe".
+
 == editcomment ==
 
 Give this a commit-ID specification.  It will edit the associated comment.
diff --git a/devtools/do-build b/devtools/do-build
new file mode 100755
index 00000000..326d62ed
--- /dev/null
+++ b/devtools/do-build
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# This script does a full build and check.  Outputs are saved to files
+# BUILD. and CHECK. with the git version appended.  The point is that
+# having regression test output from old versions is handy when
+# trouble arises.
+
+# This script should be run from the top-level directory.
+
+if [ ! -f gpsd.c ]; then
+    echo "do-build: not at top-level of gpsd"
+    exit 1
+fi
+
+version=`git describe`
+
+scons -c < /dev/null > /dev/null 2>&1
+scons $* < /dev/null > BUILD.$version 2>&1
+scons check < /dev/null > CHECK.$version 2>&1