[PATCH v4 1/3] oe-pkgdata-util: fix empty runtime-rprovides directory handling

[Sam Kent <sam.john.kent@gmail.com>]

An empty runtime-provides directory caused lookup-recipe, package-info
and list-pkg-files to skip the runtime-reverse fallback.

Use os.listdir() to ensure the folder is not empty and use
os.path.isdir( to ensure it is not a file.
---
 scripts/oe-pkgdata-util | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/scripts/oe-pkgdata-util b/scripts/oe-pkgdata-util
index bbfc6a2..904008b 100755
--- a/scripts/oe-pkgdata-util
+++ b/scripts/oe-pkgdata-util
@@ -289,8 +289,9 @@ def lookup_recipe(args):
 
     for pkg in pkgs:
         providepkgpath = os.path.join(args.pkgdata_dir, "runtime-rprovides", pkg)
-        if os.path.exists(providepkgpath):
-            for f in os.listdir(providepkgpath):
+        rprovides = os.listdir(providepkgpath) if os.path.isdir(providepkgpath) else []
+        if rprovides:
+            for f in rprovides:
                 if f != pkg:
                     print("%s is in the RPROVIDES of %s:" % (pkg, f))
                 pkgdatafile = os.path.join(args.pkgdata_dir, "runtime", f)
@@ -355,8 +356,9 @@ def package_info(args):
 
     for pkg in packages:
         providepkgpath = os.path.join(args.pkgdata_dir, "runtime-rprovides", pkg)
-        if os.path.exists(providepkgpath):
-            for f in os.listdir(providepkgpath):
+        rprovides = os.listdir(providepkgpath) if os.path.isdir(providepkgpath) else []
+        if rprovides:
+            for f in rprovides:
                 if f != pkg:
                     print("%s is in the RPROVIDES of %s:" % (pkg, f))
                 pkgdatafile = os.path.join(args.pkgdata_dir, "runtime", f)
@@ -507,8 +509,9 @@ def list_pkg_files(args):
 
         else:
             providepkgpath = os.path.join(args.pkgdata_dir, "runtime-rprovides", pkg)
-            if os.path.exists(providepkgpath):
-                for f in os.listdir(providepkgpath):
+            rprovides = os.listdir(providepkgpath) if os.path.isdir(providepkgpath) else []
+            if rprovides:
+                for f in rprovides:
                     if f != pkg:
                         print("%s is in the RPROVIDES of %s:" % (pkg, f))
                     pkgdatafile = os.path.join(args.pkgdata_dir, "runtime", f)
-- 
2.34.1