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[v2,1/2] fetch2: local files only in DL_DIR becomes fatal error

Message ID 20220714112835.38220-1-ptsneves@gmail.com
State New
Headers show
Series [v2,1/2] fetch2: local files only in DL_DIR becomes fatal error | expand

Commit Message

Paulo Neves July 14, 2022, 11:28 a.m. UTC
When trying to checksum local files, if a given file is not found
anywhere else than the DL_DIR then this means that the the build is
inconsistent, and unreproducible.

This also means that if the DL_DIR is removed or not available the
build does not know how to fetch the file and will fail. With this
commit we fail earlier and consistently on this condition.

Signed-off-by: Paulo Neves <ptsneves@gmail.com>
 lib/bb/fetch2/__init__.py | 6 +++++-
 lib/bb/tests/fetch.py     | 7 +++++++
 2 files changed, 12 insertions(+), 1 deletion(-)
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diff --git a/lib/bb/fetch2/__init__.py b/lib/bb/fetch2/__init__.py
index ac557176..ef0b18a1 100644
--- a/lib/bb/fetch2/__init__.py
+++ b/lib/bb/fetch2/__init__.py
@@ -1233,7 +1233,11 @@  def get_checksum_file_list(d):
                 if f.startswith(dl_dir):
                     # The local fetcher's behaviour is to return a path under DL_DIR if it couldn't find the file anywhere else
                     if os.path.exists(f):
-                        bb.warn("Getting checksum for %s SRC_URI entry %s: file not found except in DL_DIR" % (d.getVar('PN'), os.path.basename(f)))
+                        bb.fatal(("Getting checksum for %s SRC_URI entry %s: file not found except in DL_DIR."
+                            " This means there is no way to get the file except for an orphaned copy"
+                            " in DL_DIR."
+                            "\nThe following paths were searched:"
+                            "\n%s") % (d.getVar('PN'), os.path.basename(f), '\n'.join(paths)))
                         bb.warn("Unable to get checksum for %s SRC_URI entry %s: file could not be found" % (d.getVar('PN'), os.path.basename(f)))
                 filelist.append(f + ":" + str(os.path.exists(f)))
diff --git a/lib/bb/tests/fetch.py b/lib/bb/tests/fetch.py
index ee41bff4..3ebd9fd7 100644
--- a/lib/bb/tests/fetch.py
+++ b/lib/bb/tests/fetch.py
@@ -693,6 +693,13 @@  class FetcherLocalTest(FetcherTest):
         return flst
+    def test_local_checksum_fails_if_only_in_dldir(self):
+        with open(os.path.join(self.dldir, "on_dl_dir"), "wb"):
+            pass
+        self.d.setVar("SRC_URI", "file://on_dl_dir")
+        with self.assertRaises(bb.BBHandledException):
+            bb.fetch.get_checksum_file_list(self.d)
     def test_local(self):
         tree = self.fetchUnpack(['file://a', 'file://dir/c'])
         self.assertEqual(tree, ['a', 'dir/c'])