Re: [FFmpeg-devel] [PATCH] web/download: Extend the verification procedure to check for difference between git and release tarball

[James Almer]

On 3/30/2024 11:02 AM, Michael Niedermayer wrote:
Iam not 100% sure this is the best place to put this. But we should somewhere
describe what differences are expected
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
  src/download | 34 ++++++++++++++++++++++++++++++++++
  1 file changed, 34 insertions(+)

diff --git a/src/download b/src/download
index 0e6fa7e..34733de 100644
--- a/src/download
+++ b/src/download
@@ -284,6 +284,40 @@ gpg:                using RSA key 
FCF986EA15E6E293A5644F10B4322F04D67658D8
  gpg:                issuer "ffmpeg-devel@ffmpeg.org"
  gpg: Good signature from "FFmpeg release signing key 
&lt;ffmpeg-devel@ffmpeg.org&gt;" [full]</pre>
        </li>
+      <li>
+        Verify that the release tarball matches the git tag: (expected 
differences are missing .git, .gitignore and .gitattributes and an additional 
VERSION file)
+        <pre>
+        $ diff -ru ffmpeg-5.1.4 gitdir2
+Only in gitdir2/doc/doxy: .gitignore
+Only in gitdir2/doc/examples: .gitignore
+Only in gitdir2/doc: .gitignore
+Only in gitdir2/ffbuild: .gitignore
+Only in gitdir2: .git
+Only in gitdir2: .gitattributes
+Only in gitdir2: .gitignore
+Only in gitdir2/libavcodec: .gitignore
+Only in gitdir2/libavcodec/tests: .gitignore
+Only in gitdir2/libavdevice: .gitignore
+Only in gitdir2/libavdevice/tests: .gitignore
+Only in gitdir2/libavfilter: .gitignore
+Only in gitdir2/libavfilter/opencl: .gitignore
+Only in gitdir2/libavfilter/tests: .gitignore
+Only in gitdir2/libavformat: .gitignore
+Only in gitdir2/libavformat/tests: .gitignore
+Only in gitdir2/libavutil: .gitignore
+Only in gitdir2/libavutil/tests: .gitignore
+Only in gitdir2/libswresample/tests: .gitignore
+Only in gitdir2/libswscale/tests: .gitignore
+Only in gitdir2/tests/api: .gitignore
+Only in gitdir2/tests/checkasm: .gitignore
+Only in gitdir2/tests: .gitignore
+Only in gitdir2/tools: .gitignore
+Only in ffmpeg-5.1.4: VERSION
+        </pre>
+      </li>
+      <li>
+        Verify that the tag in git is signed

The tags are signed with your key made for this purpose, 
DD1EC9E8DE085C629B3E1846B18E8928B3948D64, and not with the tarball one 
listed above. You should include it here the same way, unless the 
signature check for tags is documented elsewhere? If so, a link to that 
place.

+      </li>
      </ol>
    </p>
  
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