runqemu: try symlinks when kernel or rootfs can't be found

If the kernel or rootfs names written to the qemuboot.conf can't
be found, try and find the symlinked variant of the filename.

This will help usability of runqemu, for example where a user
downloads an image and associated files as the symlinked names
yet the qemuboot.conf variables point to the full, non-linked,
file names.

Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/scripts/runqemu b/scripts/runqemu
index 09fe7ceafdc55bcf9ad0206a92825fc6bff3e831..3e4e3ff8e2e3dde22caaab4bfd41b3a0677b2b5c 100755 (executable)
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -451,7 +451,12 @@ class BaseConfig(object):
             if all_files:
                 self.rootfs = all_files[0]
             else:
-                raise Exception("Failed to find rootfs: %s" % cmd)
+                cmd = '%s/%s*.%s' % (self.get('DEPLOY_DIR_IMAGE'), self.get('IMAGE_LINK_NAME'), self.fstype)
+                all_files = glob.glob(cmd)
+                if all_files:
+                    self.rootfs = all_files[0]
+                else:
+                    raise Exception("Failed to find rootfs: %s" % cmd)
 
         if not os.path.exists(self.rootfs):
             raise Exception("Can't find rootfs: %s" % self.rootfs)
@@ -462,13 +467,18 @@ class BaseConfig(object):
         if self.fstype in self.vmtypes:
             return
         kernel = self.kernel
+        deploy_dir_image = self.get('DEPLOY_DIR_IMAGE')
         if not kernel:
-            kernel = "%s/%s" % (self.get('DEPLOY_DIR_IMAGE'), self.get('QB_DEFAULT_KERNEL'))
+            kernel = "%s/%s" % (deploy_dir_image, self.get('QB_DEFAULT_KERNEL'))
 
         if os.path.exists(kernel):
             self.kernel = kernel
         else:
-            raise Exception("KERNEL %s not found" % kernel)
+            kernel = "%s/%s" % (deploy_dir_image, self.get('KERNEL_IMAGETYPE'))
+            if kernel != deploy_dir_image and os.path.exists(kernel):
+                self.kernel = kernel
+            else:
+                raise Exception("KERNEL %s not found" % kernel)
 
         dtb = self.get('QB_DTB')
         if dtb: