feat: check that files referred to by spec file exist, at start

This will find problems earlier.

Sponsored-by: author

1 files changed, 25 insertions, 2 deletions

diff --git a/v-i b/v-i
index d4f9efd..0b25fec 100755
--- a/v-i
+++ b/v-i
@@ -20,6 +20,12 @@ def log(msg):
     logging.info(msg)
 
 
+def error(msg):
+    if verbose:
+        print("INSTALLER ERROR:", msg)
+    logging.error(msg)
+
+
 def run(argv, **kwargs):
     log(f"RUN: {argv} {kwargs}")
     return subprocess.run(argv, **kwargs)
@@ -415,9 +421,23 @@ class SystemSpec:
             setattr(self, key, self._obj[key])
         del self._obj
 
+        self._check()
+
     def __repr__(self):
-        r = {key: getattr(self, key) for key in dir(self) if not key.startswith("_")}
-        return repr(r)
+        return repr(
+            {key: getattr(self, key) for key in dir(self) if not key.startswith("_")}
+        )
+
+    def _check(self):
+        try:
+            for filename in self.extra_playbooks + self.ansible_vars_files:
+                if not os.path.exists(filename):
+                    raise Exception(
+                        f"spec refers to file {filename} which does not exist"
+                    )
+        except Exception as e:
+            error(e)
+            sys.exit("problem with spec file")
 
 
 def main():
@@ -443,6 +463,9 @@ def main():
     system = SystemSpec(args.spec)
     log(f"spec: {system!r}")
 
+    print("OK")
+    return
+
     ansible_vars = dict(system.ansible_vars)
     ansible_vars["hostname"] = system.hostname
     for filename in system.ansible_vars_files: