overlay-debs: add Mesa snapshot

In order to evaluate upstream Mesa on the RB1 board, package the
snapshot of the Mesa development tree. This package will go away once
Mesa 25.2 gets released and enters Debian experimental or unstable.

Signed-off-by: Dmitry Baryshkov <[email protected]>

Author: lumag

overlay-debs/mesa-snapshot/mesa-snapshot.sh

@@ -0,0 +1,66 @@
+#! /bin/sh
+#
+# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+# SPDX-License-Identifier: BSD-3-Clause
+
+COMMIT=${COMMIT:-origin/main}
+
+set -e
+
+DEB_FILE=${DSC_FILE%%.dsc}.debian.tar.xz
+ORIG_FILE=$(echo ${DSC_FILE} | sed -e 's/-.*/.orig.tar.xz/')
+
+rm -rf mesa
+git clone --depth 1 https://gitlab.freedesktop.org/mesa/mesa
+
+cd mesa
+git fetch --depth 1 origin ${COMMIT##origin/}
+
+date=$(git log -1 --format=%cd --date=format:%Y%m%d ${COMMIT})
+subject=$(git log -1 --format="%h (\"%s\")" ${COMMIT})
+version=25.2.0~git${date}
+
+rm -rf ../mesa-${version}
+mkdir ../mesa-${version}
+git archive --format=tar HEAD | tar x -C ../mesa-${version}
+
+cd ../mesa-${version}
+
+rm -rf debian
+tar xJf ${DEB_FILE}
+
+cat >> debian/changelog.tmp << EOF
+mesa (${version}-0qcom1) testing; urgency=medium
+
+  * Build git version from ${date}, commit ${subject}
+    - d/libegl-mesa0.symbols: include GL interop symbols into, exported by
+      libEGL_mesa.so.0
+    - d/p/etnaviv-add-support-for-texelfetch.patch: drop, applied upstream
+    - debian/patches/path_max.diff: refresh
+    - d/rules: dropped removal of mme_{fermi,tu104}_sim_hw_test
+    - pull in NVK dependency, librust-rustc-hash-2-dev
+  * Drop support for features removed upstream:
+    - XA tracker, dropped packages: libxatracker2, libxatracker-dev.
+    - D3D9 tracker, dropped packages libd3dadapter9-mesa,
+      libd3dadapter9-mesa-dev.
+    - Clover, removed clover files from d/mesa-opencl-icd.install.
+  * Backport to trixie:
+    - Build with LLVM 19 since LLVM 20 is not available in trixie.
+    - d/control: regenerate
+
+ -- Dmitry Baryshkov <[email protected]>  Wed, 11 Jun 2025 14:58:50 +0300
+
+EOF
+cat debian/changelog >> debian/changelog.tmp
+mv debian/changelog.tmp debian/changelog
+
+# orig.tar.xz generation skips all .git* files, drop them from the source dir too.
+rm -rf .git*
+
+debian/rules regen_control
+debian/rules clean
+debian/rules gentarball
+
+rm -rf ../mesa
+
+rm ${DSC_FILE} ${DEB_FILE} ${ORIG_FILE}*

overlay-debs/mesa-snapshot/mesa-snapshot.yaml

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+dsc_url: "https://snapshot.debian.org/archive/debian/20250519T203618Z/pool/main/m/mesa/mesa_25.1.0-1.dsc"
+dsc_sha256sum: "d06c1b0ee300f096de2ac59a2e9583349ca79322612f4502baa5e78ff0be4290"
+debdiff_file: "mesa_25.2.0.debdiff"
+script: mesa-snapshot.sh
+suite: trixie
+env:
+  COMMIT: 7fd99c88b9cd5c0c8c1cb3e92383acac5cb8220b