layer-wizard/Taskfile.yml
Philip Peterson a50e2d7b5e Cap ninja parallelism to stop flutter run from OOMing
flutter_tools shells out to bare `ninja -C <dir> install` with no -j
flag, so ninja defaults to nproc+2 parallel compile/link jobs. On this
6-core/7.6GiB box that's enough concurrent clang jobs (sqlite3's
single-TU amalgamation is the worst offender) to trip systemd-oomd
well before swap fills up.

Add tools/ninja-jcap, a PATH-shadowing ninja shim that caps jobs via
NINJA_JOBS (default 2), and have the Taskfile prepend it inline in the
run command. Task's `env:` block can't override PATH itself (the OS
env wins), so the shim has to go on PATH via the shell command line.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-10-10 10:27:11 -08:00

20 lines
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YAML

version: '3'
vars:
FLUTTER: /var/home/ironmagma/Code/.flutter-sdk/bin/flutter
tasks:
default:
desc: Launch Layer Wizard
env:
# GTK/glib/etc. come from Homebrew (brew install gtk+3), not rpm-ostree,
# since they're only needed to build this one app, not the OS image.
PKG_CONFIG_PATH: /home/linuxbrew/.linuxbrew/lib/pkgconfig:/home/linuxbrew/.linuxbrew/share/pkgconfig:/home/linuxbrew/.linuxbrew/opt/xorgproto/share/pkgconfig
cmds:
# flutter_tools shells out to bare `ninja -C <dir> install` with no -j
# flag, so ninja defaults to nproc+2 parallel compile/link jobs. That's
# enough to trip systemd-oomd on this machine (6 cores, 7.6GiB RAM).
# (Task's `env:` block can't override PATH itself -- the OS env wins --
# so the shim has to be prepended inline here instead.) See
# tools/ninja-jcap for the shim that caps it.
- 'PATH="{{.ROOT_DIR}}/tools/ninja-jcap:$PATH" {{.FLUTTER}} run -d linux'