nandi/frq · run.bb

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Write the build in babashka, and pin the babashka   1
3exec "$(dirname "$0")/bb" "$0" "$@"
Run the source on disk, not the source in git   6;; The app, from this working tree.
Run the app the way it is built: nix run   7
8;;   run.bb [args...]
Run this tree on a native half the builders made   10;; Two halves, and the split is the point. The frq source is the files on disk,
11;; uncommitted edits and all. Everything under it — jolt, glimmer,
12;; glimmer-vidya, both native objects — is the flake's, built rather than
13;; fetched: this re-execs itself inside `nix develop`, and that shell is the
14;; jolt-native input compiled and the Jolt halves that bind it, at the revs
15;; flake.lock names.
Run the app the way it is built: nix run   16
Run the source on disk, not the source in git   17;; Deliberately not `nix run .#frq`. That builds the flake's own copy of the
18;; source, which is the tree as git has it — so an edit that has not been
19;; committed, or has been committed on a branch the command was not pointed at,
20;; runs as whatever was there before, silently. A run that is meant to answer
21;; "does my change work" has to be the files on disk.
Run this tree on a native half the builders made   22
23;; And deliberately not the scripts/*.dotslash pins either, which is what this
24;; used to do. Those name a release; a change to jolt-native is by definition
Build the APK as derivations only, and retire the buck2 graph   25;; not in one yet. `just lib` still fetches them, and the APK takes the same
26;; released bytes through nix/android.nix — but a run does not.
Run this tree on a native half the builders made   27(require '[babashka.classpath :as cp])
28(cp/add-classpath (str (babashka.fs/parent *file*)))
29(require '[frq.paths :as paths]
30         '[babashka.fs :as fs]
31         '[babashka.process :as p]
32         '[clojure.string :as str])
Write the build in babashka, and pin the babashka   33
34(def root (str (fs/canonicalize (fs/path (fs/parent *file*) ".."))))
Run this tree on a native half the builders made   35(def self (str (fs/path root "scripts" "run.bb")))
37;; Outside the shell, get inside it and come back to this same script. The
38;; shell is what sets JOLT_NATIVE_LIB, so its absence is the test — no flag to
39;; forget, and `nix develop --command scripts/run.bb` by hand is not a second
40;; code path.
42;; --max-jobs 0 is what sends the work to the `builders` entry rather than
43;; compiling it here. Left to the default, nix prefers the local machine, and a
44;; cold jolt-native is egui, openh264 and quinn on a laptop — for a derivation
45;; a remote builder has likely built already. FRQ_MAX_JOBS is the way out on a
46;; machine with no builder configured: FRQ_MAX_JOBS=auto.
47(when-not (System/getenv "JOLT_NATIVE_LIB")
Build the APK as derivations only, and retire the buck2 graph   48  ;; Getting to a nix on a host that may not have one is paths/nix's problem,
49  ;; and scripts/apk.bb has the same one.
50  (let [cmd (paths/nix root
51                       ["nix" "develop" root
52                        "--max-jobs" (paths/env "FRQ_MAX_JOBS" "0")
53                        "--command" self]
54                       *command-line-args*)]
Run this tree on a native half the builders made   55    (System/exit (:exit @(apply p/process {:inherit true :dir root} cmd)))))
Run the app the way it is built: nix run   56
Run this tree on a native half the builders made   57;; The Jolt halves that have to match those objects. glimmer-vidya lives inside
58;; jolt-native and binds libvidya's ABI, so it comes out of the same input that
59;; was built rather than deps.edn's git sha — the pin drifting from the library
60;; is exactly what the flake input's comment describes. glimmer is the flake's
61;; for the same reason.
62(def overrides
63  (str "{:deps {jolt-lang/glimmer {:local/root \"" (System/getenv "GLIMMER_SRC") "\"}"
64       " nandi/glimmer-vidya {:local/root \"" (System/getenv "GLIMMER_VIDYA_SRC") "\"}}}"))
Run the app the way it is built: nix run   65
Run this tree on a native half the builders made   66;; On NixOS the store's Mesa is the system's and the window opens. Anywhere
67;; else — a bare host, or the distrobox above — the real driver is the host's,
68;; so defer to nixGL, which prepends it. Same rule the flake's launcher uses.
69(def runner
70  (when-not (fs/exists? "/run/current-system")
71    (some-> (System/getenv "NIXGL") not-empty vector)))
Write the build in babashka, and pin the babashka   72
73(System/exit
Run the source on disk, not the source in git   74 (:exit @(apply p/process
75                {:inherit true
76                 :dir root
77                 :extra-env {"LD_LIBRARY_PATH"
Run this tree on a native half the builders made   78                             (->> [(System/getenv "JOLT_NATIVE_LIB")
79                                   (System/getenv "FRQ_LIB_PATH")
80                                   (System/getenv "LD_LIBRARY_PATH")]
81                                  (remove str/blank?)
82                                  (str/join ":"))}}
83                (concat runner ["jolt" "-Sdeps" overrides "-M:frq"] *command-line-args*))))

Write the build in babashka, and pin the babashka 34832a8 nandi 18d ago	1	#!/bin/sh
	2	#_(
	3	exec "$(dirname "$0")/bb" "$0" "$@"
	4	)
	5
Run the source on disk, not the source in git 66ba416 nandi 17d ago	6	;; The app, from this working tree.
Run the app the way it is built: nix run 35e7155 nandi 17d ago	7	;;
	8	;; run.bb [args...]
	9	;;
Run this tree on a native half the builders made a32699e nandi 17d ago	10	;; Two halves, and the split is the point. The frq source is the files on disk,
	11	;; uncommitted edits and all. Everything under it — jolt, glimmer,
	12	;; glimmer-vidya, both native objects — is the flake's, built rather than
	13	;; fetched: this re-execs itself inside `nix develop`, and that shell is the
	14	;; jolt-native input compiled and the Jolt halves that bind it, at the revs
	15	;; flake.lock names.
Run the app the way it is built: nix run 35e7155 nandi 17d ago	16	;;
Run the source on disk, not the source in git 66ba416 nandi 17d ago	17	;; Deliberately not `nix run .#frq`. That builds the flake's own copy of the
	18	;; source, which is the tree as git has it — so an edit that has not been
	19	;; committed, or has been committed on a branch the command was not pointed at,
	20	;; runs as whatever was there before, silently. A run that is meant to answer
	21	;; "does my change work" has to be the files on disk.
Run this tree on a native half the builders made a32699e nandi 17d ago	22	;;
	23	;; And deliberately not the scripts/*.dotslash pins either, which is what this
	24	;; used to do. Those name a release; a change to jolt-native is by definition
Build the APK as derivations only, and retire the buck2 graph 3bc3aaa nandi 16d ago	25	;; not in one yet. `just lib` still fetches them, and the APK takes the same
	26	;; released bytes through nix/android.nix — but a run does not.
Run this tree on a native half the builders made a32699e nandi 17d ago	27	(require '[babashka.classpath :as cp])
	28	(cp/add-classpath (str (babashka.fs/parent file)))
	29	(require '[frq.paths :as paths]
	30	'[babashka.fs :as fs]
	31	'[babashka.process :as p]
	32	'[clojure.string :as str])
Write the build in babashka, and pin the babashka 34832a8 nandi 18d ago	33
	34	(def root (str (fs/canonicalize (fs/path (fs/parent file) ".."))))
Run this tree on a native half the builders made a32699e nandi 17d ago	35	(def self (str (fs/path root "scripts" "run.bb")))
	36
	37	;; Outside the shell, get inside it and come back to this same script. The
	38	;; shell is what sets JOLT_NATIVE_LIB, so its absence is the test — no flag to
	39	;; forget, and `nix develop --command scripts/run.bb` by hand is not a second
	40	;; code path.
	41	;;
	42	;; --max-jobs 0 is what sends the work to the `builders` entry rather than
	43	;; compiling it here. Left to the default, nix prefers the local machine, and a
	44	;; cold jolt-native is egui, openh264 and quinn on a laptop — for a derivation
	45	;; a remote builder has likely built already. FRQ_MAX_JOBS is the way out on a
	46	;; machine with no builder configured: FRQ_MAX_JOBS=auto.
	47	(when-not (System/getenv "JOLT_NATIVE_LIB")
Build the APK as derivations only, and retire the buck2 graph 3bc3aaa nandi 16d ago	48	;; Getting to a nix on a host that may not have one is paths/nix's problem,
	49	;; and scripts/apk.bb has the same one.
	50	(let [cmd (paths/nix root
	51	["nix" "develop" root
	52	"--max-jobs" (paths/env "FRQ_MAX_JOBS" "0")
	53	"--command" self]
	54	command-line-args)]
Run this tree on a native half the builders made a32699e nandi 17d ago	55	(System/exit (:exit @(apply p/process {:inherit true :dir root} cmd)))))
Run the app the way it is built: nix run 35e7155 nandi 17d ago	56
Run this tree on a native half the builders made a32699e nandi 17d ago	57	;; The Jolt halves that have to match those objects. glimmer-vidya lives inside
	58	;; jolt-native and binds libvidya's ABI, so it comes out of the same input that
	59	;; was built rather than deps.edn's git sha — the pin drifting from the library
	60	;; is exactly what the flake input's comment describes. glimmer is the flake's
	61	;; for the same reason.
	62	(def overrides
	63	(str "{:deps {jolt-lang/glimmer {:local/root \"" (System/getenv "GLIMMER_SRC") "\"}"
	64	" nandi/glimmer-vidya {:local/root \"" (System/getenv "GLIMMER_VIDYA_SRC") "\"}}}"))
Run the app the way it is built: nix run 35e7155 nandi 17d ago	65
Run this tree on a native half the builders made a32699e nandi 17d ago	66	;; On NixOS the store's Mesa is the system's and the window opens. Anywhere
	67	;; else — a bare host, or the distrobox above — the real driver is the host's,
	68	;; so defer to nixGL, which prepends it. Same rule the flake's launcher uses.
	69	(def runner
	70	(when-not (fs/exists? "/run/current-system")
	71	(some-> (System/getenv "NIXGL") not-empty vector)))
Write the build in babashka, and pin the babashka 34832a8 nandi 18d ago	72
	73	(System/exit
Run the source on disk, not the source in git 66ba416 nandi 17d ago	74	(:exit @(apply p/process
	75	{:inherit true
	76	:dir root
	77	:extra-env {"LD_LIBRARY_PATH"
Run this tree on a native half the builders made a32699e nandi 17d ago	78	(->> [(System/getenv "JOLT_NATIVE_LIB")
	79	(System/getenv "FRQ_LIB_PATH")
	80	(System/getenv "LD_LIBRARY_PATH")]
	81	(remove str/blank?)
	82	(str/join ":"))}}
	83	(concat runner ["jolt" "-Sdeps" overrides "-M:frq"] command-line-args))))