Bump buidlroot version to 2018.02.6

bsp/buildroot/support/testing/infra/builder.py

@@ -0,0 +1,49 @@
+import os
+import shutil
+import subprocess
+
+import infra
+
+
+class Builder(object):
+    def __init__(self, config, builddir, logtofile):
+        self.config = '\n'.join([line.lstrip() for line in
+                                 config.splitlines()]) + '\n'
+        self.builddir = builddir
+        self.logfile = infra.open_log_file(builddir, "build", logtofile)
+
+    def build(self):
+        if not os.path.isdir(self.builddir):
+            os.makedirs(self.builddir)
+
+        config_file = os.path.join(self.builddir, ".config")
+        with open(config_file, "w+") as cf:
+            cf.write(self.config)
+        # dump the defconfig to the logfile for easy debugging
+        self.logfile.write("> start defconfig\n" + self.config +
+                           "> end defconfig\n")
+        self.logfile.flush()
+
+        cmd = ["make",
+               "O={}".format(self.builddir),
+               "olddefconfig"]
+        ret = subprocess.call(cmd, stdout=self.logfile, stderr=self.logfile)
+        if ret != 0:
+            raise SystemError("Cannot olddefconfig")
+
+        cmd = ["make", "-C", self.builddir]
+        ret = subprocess.call(cmd, stdout=self.logfile, stderr=self.logfile)
+        if ret != 0:
+            raise SystemError("Build failed")
+
+        open(self.stamp_path(), 'a').close()
+
+    def stamp_path(self):
+        return os.path.join(self.builddir, "build-done")
+
+    def is_finished(self):
+        return os.path.exists(self.stamp_path())
+
+    def delete(self):
+        if os.path.exists(self.builddir):
+            shutil.rmtree(self.builddir)