Build rsync script for syncing source files from /host to /fastled. Uses content-based comparison (MD5) and preserves source timestamps to avoid spurious rebuilds when files haven't actually changed.
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| 253 | |
| 254 | |
| 255 | def _build_sync_script() -> str: |
| 256 | """Build rsync script for syncing source files from /host to /fastled. |
| 257 | |
| 258 | Uses content-based comparison (MD5) and preserves source timestamps to avoid |
| 259 | spurious rebuilds when files haven't actually changed. |
| 260 | """ |
| 261 | return """ |
| 262 | # Sync host directories to container working directory |
| 263 | if command -v rsync &> /dev/null; then |
| 264 | echo "Syncing source files from /host to /fastled..." |
| 265 | |
| 266 | # rsync flags: |
| 267 | # -a: Archive mode (includes -rlptgoD - recursive, links, perms, times, group, owner, devices) |
| 268 | # --checksum: Compare MD5 checksums instead of size+mtime (detects real changes) |
| 269 | # --delete: Remove destination files that don't exist in source |
| 270 | # |
| 271 | # By preserving timestamps (-t in -a), Meson won't see files as modified |
| 272 | # when they haven't actually changed (avoids spurious reconfiguration). |
| 273 | |
| 274 | # Sync directories in parallel for speed |
| 275 | if [ -d "/host/src" ]; then |
| 276 | echo " → syncing src/..." |
| 277 | rsync -a --checksum --delete /host/src/ /fastled/src/ & |
| 278 | fi |
| 279 | |
| 280 | if [ -d "/host/tests" ]; then |
| 281 | echo " → syncing tests/..." |
| 282 | rsync -a --checksum --delete /host/tests/ /fastled/tests/ & |
| 283 | fi |
| 284 | |
| 285 | if [ -d "/host/examples" ]; then |
| 286 | echo " → syncing examples/..." |
| 287 | rsync -a --checksum --delete /host/examples/ /fastled/examples/ & |
| 288 | fi |
| 289 | |
| 290 | if [ -d "/host/ci" ]; then |
| 291 | echo " → syncing ci/..." |
| 292 | rsync -a --checksum --delete /host/ci/ /fastled/ci/ & |
| 293 | fi |
| 294 | |
| 295 | if [ -d "/host/lint_plugins" ]; then |
| 296 | echo " → syncing lint_plugins/..." |
| 297 | rsync -a --checksum --delete /host/lint_plugins/ /fastled/lint_plugins/ & |
| 298 | fi |
| 299 | |
| 300 | # Sync individual files (preserving timestamps prevents Meson reconfiguration) |
| 301 | if [ -f "/host/pyproject.toml" ]; then |
| 302 | rsync -a --checksum /host/pyproject.toml /fastled/ & |
| 303 | fi |
| 304 | |
| 305 | if [ -f "/host/uv.lock" ]; then |
| 306 | rsync -a --checksum /host/uv.lock /fastled/ & |
| 307 | fi |
| 308 | |
| 309 | if [ -f "/host/test.py" ]; then |
| 310 | rsync -a --checksum /host/test.py /fastled/ & |
| 311 | fi |
| 312 |