Dune sometimes changes *.opam files in release mode #8417
Description
Expected Behavior
In "reproducible release mode" (-p or --release), Dune should not change *.opam files.
Actual Behavior
Dune sometimes changes these files.
Reproduction
$ wget https://github.com/ocaml/graphics/releases/download/5.1.2/graphics-5.1.2.tbz
$ tar xf graphics-5.1.2.tbz
$ cd graphics-5.1.2
$ git init && git add . && git commit -m "Initial commit"
$ dune build -p graphics
$ git diff
diff --git a/graphics.opam b/graphics.opam
index 0f53f1e..1386301 100644
--- a/graphics.opam
+++ b/graphics.opam
@@ -1,6 +1,6 @@
-version: "5.1.2"
# This file is generated by dune, edit dune-project instead
opam-version: "2.0"
+version: "5.1.2"
synopsis: "The OCaml graphics library"
description: """
The graphics library provides a set of portable drawing
@@ -38,4 +38,4 @@ build: [
"@doc" {with-doc}
]
]
-dev-repo: "git+https://github.com/ocaml/graphics.git"
\ No newline at end of file
+dev-repo: "git+https://github.com/ocaml/graphics.git"
Note that I took graphics as an example, but it happens in many other packages.
Specifications
- Version of
dune(output ofdune --version): 3.9.1 (dune --versionactually returnsn/a) - Version of
ocaml(output ofocamlc --version): 4.13.1 - Operating system (distribution and version): Debian sid (as of 2023-08-18)
Context
This was discovered by Debian QA, which checks that sources are not modified during build. Debian bug.