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Add docs and spread task for updating Mir's Wayland Explorer entry #4784

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Add docs and spread task for updating Mir's Wayland Explorer entry #4784

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47fb3cc
Initial plan
Copilot Mar 19, 2026
8af03be
Convert wayland-explorer docs into a spread task for lxd:ubuntu
Copilot Mar 19, 2026
bec1427
Add WAYLAND_EXPLORER spread variable and artifacts collection for mir…
Copilot Mar 19, 2026
19d5363
Update wlprobe install and platform packages in spread task
Copilot Mar 19, 2026
4f9d65b
Use upload-artifact for mir.json and drop diff from spread task
Copilot Mar 19, 2026
052c728
spread: store artifacts
Saviq Mar 19, 2026
6b17bfa
Install local deb files by path instead of package names
Copilot Mar 19, 2026
c65e4a4
Apply suggestion from @Saviq
Saviq Mar 19, 2026
af489f5
Read MIR_VERSION from CMakeLists.txt instead of dpkg-query
Copilot Mar 19, 2026
97ba22d
Use inotifywait to wait for Wayland socket instead of polling loop
Copilot Mar 19, 2026
3231493
Check for socket after inotifywait timeout to handle race condition
Copilot Mar 19, 2026
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8 changes: 7 additions & 1 deletion .github/workflows/spread.yml
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Expand Up @@ -134,7 +134,13 @@ jobs:
- name: Run Spread task
run: |
tools/make_release_tarball --skip-checks
snap run spread-mir-ci.spread -reuse -v ${{ matrix.spread-task }}
snap run spread-mir-ci.spread -reuse -artifacts=./artifacts -v ${{ matrix.spread-task }}

- name: Upload artifacts
uses: actions/upload-artifact@v4
with:
name: ${{ matrix.spread-task }}-artifacts
path: artifacts/**

- name: CCache stats
run: cat ${CCACHE_DIR}/ccache.stats
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2 changes: 2 additions & 0 deletions spread.yaml
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Expand Up @@ -50,6 +50,8 @@ environment:
CCACHE_DIR: /root/.ccache
# Needed for precompiled headers (https://ccache.dev/manual/latest.html#_precompiled_headers)
CCACHE_SLOPPINESS: time_macros,pch_defines,include_file_mtime,include_file_ctime
WLPROBE: false
WLPROBE/ubuntu: true

prepare: |
# NOTE: This part of the code needs to be in spread.yaml as it runs before
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37 changes: 37 additions & 0 deletions spread/sbuild/task.yaml
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Expand Up @@ -10,6 +10,9 @@ variants:
summary: Build Deb packages
kill-timeout: 90m

artifacts:
- mir.json

execute: |
cd $SPREAD_PATH

Expand Down Expand Up @@ -160,3 +163,37 @@ execute: |
EOF

fi

if [ "${WLPROBE}" = "true" ]; then
# Install Mir packages from the locally-built sbuild output in ../
apt-get install --yes --no-install-recommends \
cargo \
jq
apt-get install --yes --no-install-recommends \
${SPREAD_PATH}/../mir-demos_*.deb \
${SPREAD_PATH}/../mir-platform-graphics-stub*.deb \
${SPREAD_PATH}/../mir-platform-input-stub*.deb \
${SPREAD_PATH}/../mir-platform-rendering-egl-generic*.deb

cargo install wlprobe

MIR_VERSION=$(dpkg-query -W -f='${Version}' libmiral-dev | sed 's/-.*//')
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@Saviq Saviq Mar 19, 2026

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@copilot read this from CMakeLists.txt instead

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Copilot AI Mar 19, 2026

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Done in af489f5. MIR_VERSION is now read from CMakeLists.txt:

MIR_VERSION=$(sed -n 's/.*VERSION \([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/p' "$SPREAD_PATH/CMakeLists.txt" | head -1)

MIR_JSON_OUTPUT="$SPREAD_PATH/$SPREAD_TASK/mir.json"
export XDG_RUNTIME_DIR=/tmp MIR_VERSION MIR_JSON_OUTPUT PATH="$HOME/.cargo/bin:$PATH"

timeout 30 bash -e <<'WLPROBE'

trap "jobs -p | xargs -r kill" SIGINT SIGTERM EXIT

WAYLAND_DISPLAY=wayland-99 miral-app --add-wayland-extension=all &

timeout --preserve-status 5 bash -c "while [ ! -S $XDG_RUNTIME_DIR/wayland-99 ]; do sleep 0.1; done"
[ -S "$XDG_RUNTIME_DIR/wayland-99" ] || { echo "miral-app failed to create Wayland socket at $XDG_RUNTIME_DIR/wayland-99"; exit 1; }

WAYLAND_DISPLAY=wayland-99 wlprobe --unique | \
jq --arg version "$MIR_VERSION" '{generationTimestamp, version:$version, globals}' \
> "$MIR_JSON_OUTPUT"

WLPROBE

fi
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