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Make builds incremental by preserving source/build dirs (#45)

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This commit is contained in:
Adeeb Shihadeh
2026-03-04 09:17:55 -08:00
committed by GitHub
parent 2e9aed768a
commit 331d94a683
37 changed files with 221 additions and 367 deletions
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24
json11/build.sh
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@@ -6,36 +6,26 @@ cd "$DIR"
VERSION="db00e9369a92aa74bf630a2ffb092a4b0b132c01"
INSTALL_DIR="$DIR/json11/install"
VERSION_FILE="$INSTALL_DIR/VERSION"
# Idempotent: skip if already built at this source revision.
if [ -f "$INSTALL_DIR/lib/libjson11.a" ] && [ -f "$INSTALL_DIR/include/json11/json11.hpp" ] && \
[ -f "$VERSION_FILE" ] && [ "$(cat "$VERSION_FILE")" = "$VERSION" ]; then
echo "json11 already present, skipping build."
exit 0
fi
CXX="ccache ${CXX:-c++}"
if [ ! -d "$DIR/json11-src/.git" ]; then
git clone https://github.com/dropbox/json11.git json11-src
git clone --depth 1 https://github.com/dropbox/json11.git json11-src
fi
git -C json11-src fetch --force origin
git -C json11-src fetch --depth 1 origin "$VERSION"
git -C json11-src checkout --force "$VERSION"
BUILD_DIR="$DIR/build"
rm -rf "$BUILD_DIR" "$INSTALL_DIR"
mkdir -p "$BUILD_DIR" "$INSTALL_DIR/lib" "$INSTALL_DIR/include/json11"
mkdir -p "$BUILD_DIR"
rm -rf "$INSTALL_DIR"
mkdir -p "$INSTALL_DIR/lib" "$INSTALL_DIR/include/json11"
CXX="${CXX:-c++}"
AR="${AR:-ar}"
"$CXX" -std=c++11 -fPIC -O2 -c "$DIR/json11-src/json11.cpp" -o "$BUILD_DIR/json11.o"
$CXX -std=c++11 -fPIC -O2 -c "$DIR/json11-src/json11.cpp" -o "$BUILD_DIR/json11.o"
"$AR" rcs "$INSTALL_DIR/lib/libjson11.a" "$BUILD_DIR/json11.o"
cp "$DIR/json11-src/json11.hpp" "$INSTALL_DIR/include/json11/json11.hpp"
echo "$VERSION" > "$VERSION_FILE"
# Keep workspace small and deterministic across builds.
rm -rf "$DIR/json11-src" "$BUILD_DIR"
echo "Installed json11 to $INSTALL_DIR"
du -sh "$INSTALL_DIR"