Greg Pomerantz
0c4a1f9f60
- fix encoded-polyline decoder (zigzag: (n>>1) ^ -(n&1)) — caught by the OSRM integration tests (Boston clearance 5681km -> 38km) - OSRM client: routes[] JSON shape, overview=full for geometry, polyline+geojson support - local OSRM 26.4.1 built from source (no sudo): deps.sh (bzip2, lua 5.2 with readline stub, oneTBB, boost 1.84 via b2 + hand-rolled CMake config files, osmium-tool), setup-osrm.sh (merge PBFs -> extract -> partition -> customize -> serve :5000); v26 flag fixes - bench: tasks.osrm.json goldens; both backends 26/26 PASS and agree on all 5 optimized orders (Ladd->Cascade etc.) - README: profile deltas (Valhalla 332min vs OSRM 410min, same route shape), per-backend goldens, verified self-host status
91 lines
3.1 KiB
Bash
Executable File
91 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build + run the self-hosted OSRM router over the NH+MA+CT+NY extract.
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#
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# Steps: deps.sh (bzip2/lua/tbb/boost/osmium, no sudo) → build OSRM 26.4.1
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# → merge the 4 state PBFs → extract → partition → customize → serve :5000.
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#
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# Usage: scripts/setup-osrm.sh # everything, then serve
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# scripts/setup-osrm.sh --no-serve # build + extract, don't serve
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#
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# NOTE: /tmp is wiped on reboot. For a persistent install set W to a
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# durable dir (and the extract's ~8 GB lives under $W/data).
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#
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# PBFs are pre-downloaded in ../../osm/ (see router/README.md); ~1.1 GB.
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set -euo pipefail
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cd "$(dirname "$0")"
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W="${W:-/tmp/osm-build}"
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P="$W/prefix"
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OSM_DIR="$(cd ../.. && pwd)/osm"
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DATA_DIR="${DATA_DIR:-$W/data}"
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OSRM_SRC="$W/osrm-backend-26.4.1"
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OSRM_BIN="$W/build"
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SERVE=1
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[ "${1:-}" = "--no-serve" ] && SERVE=0
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mkdir -p "$DATA_DIR"
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step() { echo; echo "=== $1"; }
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step "1/6 dependencies (bzip2, lua, tbb, boost, osmium)"
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bash deps.sh
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step "2/6 OSRM 26.4.1"
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if [ ! -d "$OSRM_SRC" ]; then
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curl -sL -o "$W/osrm.tar.gz" https://github.com/Project-OSRM/osrm-backend/archive/refs/tags/v26.4.1.tar.gz
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tar -C "$W" -xzf "$W/osrm.tar.gz"
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fi
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if [ ! -x "$OSRM_BIN/osrm-extract" ]; then
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# -Wno-maybe-uninitialized: GCC 12 + boost 1.84 spirit X3 false positive
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# under OSRM's -Werror.
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cmake -S "$OSRM_SRC" -B "$OSRM_BIN" \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_PREFIX_PATH="$P" \
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-DCMAKE_CXX_FLAGS="-Wno-maybe-uninitialized"
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cmake --build "$OSRM_BIN" -j"$(nproc)"
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fi
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ls -la "$OSRM_BIN"/osrm-extract "$OSRM_BIN"/osrm-routed
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step "3/6 OSM PBFs (NH+MA+CT+NY)"
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if [ ! -s "$OSM_DIR/us-new-hampshire.osm.pbf" ]; then
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echo "PBFs missing; downloading from the geofabrik HF mirror (~1.1 GB)..."
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for f in us-new-hampshire us-connecticut us-massachusetts us-new-york; do
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[ -s "$OSM_DIR/$f.osm.pbf" ] || curl -sL -o "$OSM_DIR/$f.osm.pbf" \
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"https://huggingface.co/datasets/NoeFlandre/osm-geofabrik-raw-pbf-extracts/resolve/main/$f-latest.osm.pbf"
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done
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fi
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ls -la "$OSM_DIR"/us-*.osm.pbf
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step "4/6 merge PBFs (osrm-extract takes one input file)"
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MERGED="$DATA_DIR/northeast.osm.pbf"
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if [ ! -s "$MERGED" ]; then
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"$W/osmium-build/osmium" merge \
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"$OSM_DIR/us-new-hampshire.osm.pbf" \
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"$OSM_DIR/us-connecticut.osm.pbf" \
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"$OSM_DIR/us-massachusetts.osm.pbf" \
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"$OSM_DIR/us-new-york.osm.pbf" \
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-o "$MERGED"
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fi
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ls -la "$MERGED"
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step "5/6 extract + partition + customize (extract needs ~9-12GB RAM)"
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if [ ! -s "$DATA_DIR/northeast.osrm.ebg" ]; then
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"$OSRM_BIN/osrm-extract" "$MERGED" \
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-p "$OSRM_SRC/profiles/car.lua" \
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-o "$DATA_DIR/northeast"
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fi
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if [ ! -s "$DATA_DIR/northeast.osrm.partition" ]; then
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"$OSRM_BIN/osrm-partition" "$DATA_DIR/northeast"
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fi
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if [ ! -s "$DATA_DIR/northeast.osrm.tld" ]; then
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# v26 bakes the profile into the extract; customize takes no -p.
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"$OSRM_BIN/osrm-customize" "$DATA_DIR/northeast"
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fi
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if [ "$SERVE" = 0 ]; then
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echo "done (not serving; start with: $OSRM_BIN/osrm-routed --algorithm mld --port 5000 $DATA_DIR/northeast.osrm)"
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exit 0
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fi
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step "6/6 serve on :5000 (Ctrl-C to stop)"
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exec "$OSRM_BIN/osrm-routed" --algorithm mld --port 5000 "$DATA_DIR/northeast.osrm"
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