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qt6-migration-pipeline/app/build_grantlee.sh
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#!/usr/bin/env bash
set -euo pipefail
# build_grantlee.sh - try installing grantlee via apt, otherwise build from source
QT_ROOT=${QT_ROOT:-/opt/Qt/6.8.3/gcc_64}
INSTALL_PREFIX=${INSTALL_PREFIX:-/usr/local}
echo "Attempting to install libgrantlee5 via apt..."
if apt-get update && apt-get install -y --no-install-recommends libgrantlee5 libgrantlee5-dev; then
echo "Installed libgrantlee5 from apt"
exit 0
fi
echo "libgrantlee not available via apt; building from source (steveire/grantlee)..."
TMPDIR=$(mktemp -d)
trap 'rm -rf "$TMPDIR"' EXIT
cd "$TMPDIR"
if ! git clone --depth 1 https://github.com/steveire/grantlee.git grantlee; then
echo "Warning: failed to clone grantlee from github; network or access issue. Exiting gracefully." >&2
exit 0
fi
# Apply lightweight Qt6 migration patches to Grantlee CMake files where feasible.
# - Replace find_package(Qt5 ...) with find_package(Qt6 ...)
# - Replace Qt5::target with Qt6::target
# This is a pragmatic shim to build Grantlee against Qt6 for the migration pipeline.
pushd grantlee >/dev/null
# Backup original files
git ls-files | grep -E "CMakeLists.txt|\\.cmake$" | xargs -r -n1 -I{} cp {} {}.bak || true
# Do best-effort in-place replacements
# Replace find_package(.*Qt5 with find_package(...Qt6
sed -i -E 's/find_package\(([^\)]*)Qt5/Find_Qt5_REPLACED_QT5/' -n || true
# More targeted replacements for common patterns
for f in $(git ls-files | grep -E "CMakeLists.txt|\\.cmake$") ; do
sed -i -E 's/find_package\(Qt5\b/find_package(Qt6 REQUIRED COMPONENTS Core Widgets)
/; s/Qt5::/Qt6::/g; s/QT5_WRAP_CPP/QT_WRAP_CPP/g' "$f" || true
done
popd >/dev/null
mkdir -p grantlee/build
cd grantlee/build
cmake -DCMAKE_BUILD_TYPE=Release \
-DCMAKE_INSTALL_PREFIX="${INSTALL_PREFIX}" \
-DCMAKE_PREFIX_PATH="${QT_ROOT}:${INSTALL_PREFIX}" .. || true
# Try build; failures are tolerated but we attempt to install
cmake --build . -- -j$(nproc) || true
cmake --install . || true
echo "Grantlee build script finished."
exit 0