steid

feat: config from env and SQLite pool in app context

AppConfig reads STEID_-prefixed vars via envy, with defaults so a bare
`cargo run` works. Bind address is deliberately absent — Topcoat owns it
through HOST/PORT, superseding the previous attempt's STEID_LISTEN_ADDR.

The SQLite pool and config register as Topcoat app context; the placeholder
home page reads through the pool to prove the wiring end to end. Layout
follows architecture.md: application/ holds config, infrastructure/ holds
the pool and web handlers.

3 tests, driving envy from an explicit iterator rather than the process
environment so they don't race on shared global state.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

JamesPatrickGill authored 1 month agoparent3475719Browse files0d12f7df554be6cede324f958da4fbcfb423fb9b

8 files changed+782 −36

Cargo.lock+635 −6View file

		@@ -88,12 +88,27 @@ dependencies = [
88	88	"tokio",
89	89	]
90	90
	91	+[[package]]
	92	+name = "atoi"
	93	+version = "2.0.0"
	94	+source = "registry+https://github.com/rust-lang/crates.io-index"
	95	+checksum = "f28d99ec8bfea296261ca1af174f24225171fea9664ba9003cbebee704810528"
	96	+dependencies = [
	97	+ "num-traits",
	98	+]
	99	+
91	100	[[package]]
92	101	name = "atomic-waker"
93	102	version = "1.1.2"
94	103	source = "registry+https://github.com/rust-lang/crates.io-index"
95	104	checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
96	105
	106	+[[package]]
	107	+name = "autocfg"
	108	+version = "1.5.1"
	109	+source = "registry+https://github.com/rust-lang/crates.io-index"
	110	+checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
	111	+
97	112	[[package]]
98	113	name = "base64"
99	114	version = "0.22.1"
		@@ -111,6 +126,9 @@ name = "bitflags"
111	126	version = "2.13.1"
112	127	source = "registry+https://github.com/rust-lang/crates.io-index"
113	128	checksum = "b588b76d00fde79687d7646a9b5bdf3cc0f655e0bbd080335a95d7e96f3587da"
	129	+dependencies = [
	130	+ "serde_core",
	131	+]
114	132
115	133	[[package]]
116	134	name = "block-buffer"
		@@ -163,18 +181,45 @@ version = "3.20.3"
163	181	source = "registry+https://github.com/rust-lang/crates.io-index"
164	182	checksum = "72f5acc6cb2ba439de613abc23857ec3d78374d8ed5ac84e9d11336e87da8649"
165	183
	184	+[[package]]
	185	+name = "byteorder"
	186	+version = "1.5.0"
	187	+source = "registry+https://github.com/rust-lang/crates.io-index"
	188	+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
	189	+
166	190	[[package]]
167	191	name = "bytes"
168	192	version = "1.12.1"
169	193	source = "registry+https://github.com/rust-lang/crates.io-index"
170	194	checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
171	195
	196	+[[package]]
	197	+name = "cc"
	198	+version = "1.4.0"
	199	+source = "registry+https://github.com/rust-lang/crates.io-index"
	200	+checksum = "5add81bb678e6cb321aff7fa0dc7689ad82b112dbc032cea19f91d6b8e3582b9"
	201	+dependencies = [
	202	+ "find-msvc-tools",
	203	+ "shlex",
	204	+]
	205	+
172	206	[[package]]
173	207	name = "cfg-if"
174	208	version = "1.0.4"
175	209	source = "registry+https://github.com/rust-lang/crates.io-index"
176	210	checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
177	211
	212	+[[package]]
	213	+name = "chacha20"
	214	+version = "0.10.1"
	215	+source = "registry+https://github.com/rust-lang/crates.io-index"
	216	+checksum = "d524456ba66e72eb8b115ff89e01e497f8e6d11d78b70b1aa13c0fbd97540a81"
	217	+dependencies = [
	218	+ "cfg-if",
	219	+ "cpufeatures 0.3.0",
	220	+ "rand_core 0.10.1",
	221	+]
	222	+
178	223	[[package]]
179	224	name = "cipher"
180	225	version = "0.4.4"
		@@ -185,6 +230,12 @@ dependencies = [
185	230	"inout",
186	231	]
187	232
	233	+[[package]]
	234	+name = "cmov"
	235	+version = "0.5.4"
	236	+source = "registry+https://github.com/rust-lang/crates.io-index"
	237	+checksum = "0c9ea0ac24bc397ab3c98583a3c9ba74fa56b09a4449bbe172b9b1ddb016027a"
	238	+
188	239	[[package]]
189	240	name = "compression-codecs"
190	241	version = "0.4.38"
		@@ -217,8 +268,8 @@ checksum = "4ddef33a339a91ea89fb53151bd0a4689cfce27055c291dfa69945475d22c747"
217	268	dependencies = [
218	269	"aes-gcm",
219	270	"base64 0.22.1",
220		− "hkdf",
221		− "hmac",
	271	+ "hkdf 0.12.4",
	272	+ "hmac 0.12.1",
222	273	"percent-encoding",
223	274	"rand 0.8.7",
224	275	"sha2 0.10.9",
		@@ -245,6 +296,21 @@ dependencies = [
245	296	"libc",
246	297	]
247	298
	299	+[[package]]
	300	+name = "crc"
	301	+version = "3.4.0"
	302	+source = "registry+https://github.com/rust-lang/crates.io-index"
	303	+checksum = "5eb8a2a1cd12ab0d987a5d5e825195d372001a4094a0376319d5a0ad71c1ba0d"
	304	+dependencies = [
	305	+ "crc-catalog",
	306	+]
	307	+
	308	+[[package]]
	309	+name = "crc-catalog"
	310	+version = "2.5.0"
	311	+source = "registry+https://github.com/rust-lang/crates.io-index"
	312	+checksum = "217698eaf96b4a3f0bc4f3662aaa55bdf913cd54d7204591faa790070c6d0853"
	313	+
248	314	[[package]]
249	315	name = "crc32fast"
250	316	version = "1.5.0"
		@@ -254,6 +320,21 @@ dependencies = [
254	320	"cfg-if",
255	321	]
256	322
	323	+[[package]]
	324	+name = "crossbeam-queue"
	325	+version = "0.3.13"
	326	+source = "registry+https://github.com/rust-lang/crates.io-index"
	327	+checksum = "803d13fb3b09d88be9f4dbc29062c66b19bf7170867ceb746d2a8689bf6c7a26"
	328	+dependencies = [
	329	+ "crossbeam-utils",
	330	+]
	331	+
	332	+[[package]]
	333	+name = "crossbeam-utils"
	334	+version = "0.8.22"
	335	+source = "registry+https://github.com/rust-lang/crates.io-index"
	336	+checksum = "61803da095bee82a81bb1a452ecc25d3b2f1416d1897eb86430c6159ef717c17"
	337	+
257	338	[[package]]
258	339	name = "crypto-common"
259	340	version = "0.1.7"
		@@ -283,6 +364,15 @@ dependencies = [
283	364	"cipher",
284	365	]
285	366
	367	+[[package]]
	368	+name = "ctutils"
	369	+version = "0.4.2"
	370	+source = "registry+https://github.com/rust-lang/crates.io-index"
	371	+checksum = "7d5515a3834141de9eafb9717ad39eea8247b5674e6066c404e8c4b365d2a29e"
	372	+dependencies = [
	373	+ "cmov",
	374	+]
	375	+
286	376	[[package]]
287	377	name = "data-encoding"
288	378	version = "2.11.0"
		@@ -315,6 +405,7 @@ dependencies = [
315	405	"block-buffer 0.12.1",
316	406	"const-oid",
317	407	"crypto-common 0.2.2",
	408	+ "ctutils",
318	409	]
319	410
320	411	[[package]]
		@@ -328,6 +419,21 @@ dependencies = [
328	419	"syn 3.0.3",
329	420	]
330	421
	422	+[[package]]
	423	+name = "dotenvy"
	424	+version = "0.15.7"
	425	+source = "registry+https://github.com/rust-lang/crates.io-index"
	426	+checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
	427	+
	428	+[[package]]
	429	+name = "either"
	430	+version = "1.17.0"
	431	+source = "registry+https://github.com/rust-lang/crates.io-index"
	432	+checksum = "9e5e8f6c15a24b9a3ee5efec809ccd006d3b30e8b3bb63c39af737c7f87daa1d"
	433	+dependencies = [
	434	+ "serde",
	435	+]
	436	+
331	437	[[package]]
332	438	name = "email-encoding"
333	439	version = "0.4.2"
		@@ -344,6 +450,15 @@ version = "0.2.9"
344	450	source = "registry+https://github.com/rust-lang/crates.io-index"
345	451	checksum = "e079f19b08ca6239f47f8ba8509c11cf3ea30095831f7fed61441475edd8c449"
346	452
	453	+[[package]]
	454	+name = "envy"
	455	+version = "0.4.2"
	456	+source = "registry+https://github.com/rust-lang/crates.io-index"
	457	+checksum = "3f47e0157f2cb54f5ae1bd371b30a2ae4311e1c028f575cd4e81de7353215965"
	458	+dependencies = [
	459	+ "serde",
	460	+]
	461	+
347	462	[[package]]
348	463	name = "equivalent"
349	464	version = "1.0.2"
		@@ -360,12 +475,38 @@ dependencies = [
360	475	"windows-sys",
361	476	]
362	477
	478	+[[package]]
	479	+name = "etcetera"
	480	+version = "0.11.0"
	481	+source = "registry+https://github.com/rust-lang/crates.io-index"
	482	+checksum = "de48cc4d1c1d97a20fd819def54b890cadde72ed3ad0c614822a0a433361be96"
	483	+dependencies = [
	484	+ "cfg-if",
	485	+ "windows-sys",
	486	+]
	487	+
	488	+[[package]]
	489	+name = "event-listener"
	490	+version = "5.4.2"
	491	+source = "registry+https://github.com/rust-lang/crates.io-index"
	492	+checksum = "5a23add41df1562121a9393cb065eab5146a1242410f23a644851e90cfd669d2"
	493	+dependencies = [
	494	+ "parking",
	495	+ "pin-project-lite",
	496	+]
	497	+
363	498	[[package]]
364	499	name = "fastrand"
365	500	version = "2.5.0"
366	501	source = "registry+https://github.com/rust-lang/crates.io-index"
367	502	checksum = "da7c62ceae207dd37ea5b845da6a0696c799f85e97da1ab5b7910be3c1c80223"
368	503
	504	+[[package]]
	505	+name = "find-msvc-tools"
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	507	+source = "registry+https://github.com/rust-lang/crates.io-index"
	508	+checksum = "5baebc0774151f905a1a2cc41989300b1e6fbb29aff0ceffa1064fdd3088d582"
	509	+
369	510	[[package]]
370	511	name = "flate2"
371	512	version = "1.1.9"
		@@ -376,6 +517,17 @@ dependencies = [
376	517	"miniz_oxide",
377	518	]
378	519
	520	+[[package]]
	521	+name = "flume"
	522	+version = "0.12.0"
	523	+source = "registry+https://github.com/rust-lang/crates.io-index"
	524	+checksum = "5e139bc46ca777eb5efaf62df0ab8cc5fd400866427e56c68b22e414e53bd3be"
	525	+dependencies = [
	526	+ "futures-core",
	527	+ "futures-sink",
	528	+ "spin",
	529	+]
	530	+
379	531	[[package]]
380	532	name = "fnv"
381	533	version = "1.0.7"
		@@ -404,6 +556,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
404	556	checksum = "262590f4fe6afeb0bc83be1daa64e52657fe185690a958af7f3ad0e92085c5ae"
405	557	dependencies = [
406	558	"futures-core",
	559	+ "futures-sink",
407	560	]
408	561
409	562	[[package]]
		@@ -412,6 +565,34 @@ version = "0.3.33"
412	565	source = "registry+https://github.com/rust-lang/crates.io-index"
413	566	checksum = "2cd50c473c80f6d7c3670a752354b8e569b1a7cbfdc0419ec88e5edad85e0dc7"
414	567
	568	+[[package]]
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	570	+version = "0.3.33"
	571	+source = "registry+https://github.com/rust-lang/crates.io-index"
	572	+checksum = "6754879cc9f2c66f88c6e5c35344bb0bdb0708b0352b1201815667c7eabc7458"
	573	+dependencies = [
	574	+ "futures-core",
	575	+ "futures-task",
	576	+ "futures-util",
	577	+]
	578	+
	579	+[[package]]
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	582	+source = "registry+https://github.com/rust-lang/crates.io-index"
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	584	+dependencies = [
	585	+ "futures-core",
	586	+ "lock_api",
	587	+ "parking_lot",
	588	+]
	589	+
	590	+[[package]]
	591	+name = "futures-io"
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	593	+source = "registry+https://github.com/rust-lang/crates.io-index"
	594	+checksum = "4577ecaa3c4f96589d473f679a71b596316f6641bc350038b962a5daf0085d7a"
	595	+
415	596	[[package]]
416	597	name = "futures-macro"
417	598	version = "0.3.33"
		@@ -442,9 +623,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
442	623	checksum = "a77a90a256fce34da66415271e30f94ee91c57b04b8a2c042d9cf3220179deaa"
443	624	dependencies = [
444	625	"futures-core",
	626	+ "futures-io",
445	627	"futures-macro",
446	628	"futures-sink",
447	629	"futures-task",
	630	+ "memchr",
448	631	"pin-project-lite",
449	632	"slab",
450	633	]
		@@ -494,6 +677,7 @@ dependencies = [
494	677	"js-sys",
495	678	"libc",
496	679	"r-efi 6.0.0",
	680	+ "rand_core 0.10.1",
497	681	"wasm-bindgen",
498	682	]
499	683
		@@ -526,6 +710,17 @@ dependencies = [
526	710	"tracing",
527	711	]
528	712
	713	+[[package]]
	714	+name = "hashbrown"
	715	+version = "0.16.1"
	716	+source = "registry+https://github.com/rust-lang/crates.io-index"
	717	+checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
	718	+dependencies = [
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	720	+ "equivalent",
	721	+ "foldhash",
	722	+]
	723	+
529	724	[[package]]
530	725	name = "hashbrown"
531	726	version = "0.17.1"
		@@ -537,19 +732,43 @@ dependencies = [
537	732	"foldhash",
538	733	]
539	734
	735	+[[package]]
	736	+name = "hashlink"
	737	+version = "0.11.1"
	738	+source = "registry+https://github.com/rust-lang/crates.io-index"
	739	+checksum = "824e001ac4f3012dd16a264bec811403a67ca9deb6c102fc5049b32c4574b35f"
	740	+dependencies = [
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540	744	[[package]]
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542	746	version = "0.5.0"
543	747	source = "registry+https://github.com/rust-lang/crates.io-index"
544	748	checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
545	749
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	753	+source = "registry+https://github.com/rust-lang/crates.io-index"
	754	+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
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546	756	[[package]]
547	757	name = "hkdf"
548	758	version = "0.12.4"
549	759	source = "registry+https://github.com/rust-lang/crates.io-index"
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551	761	dependencies = [
552		− "hmac",
	762	+ "hmac 0.12.1",
	763	+]
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	770	+dependencies = [
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553	772	]
554	773
555	774	[[package]]
		@@ -561,6 +780,15 @@ dependencies = [
561	780	"digest 0.10.7",
562	781	]
563	782
	783	+[[package]]
	784	+name = "hmac"
	785	+version = "0.13.0"
	786	+source = "registry+https://github.com/rust-lang/crates.io-index"
	787	+checksum = "6303bc9732ae41b04cb554b844a762b4115a61bfaa81e3e83050991eeb56863f"
	788	+dependencies = [
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	790	+]
	791	+
564	792	[[package]]
565	793	name = "hostname"
566	794	version = "0.4.2"
		@@ -771,7 +999,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
771	999	checksum = "d466e9454f08e4a911e14806c24e16fba1b4c121d1ea474396f396069cf949d9"
772	1000	dependencies = [
773	1001	"equivalent",
774		− "hashbrown",
	1002	+ "hashbrown 0.17.1",
775	1003	]
776	1004
777	1005	[[package]]
		@@ -832,12 +1060,32 @@ version = "0.2.189"
832	1060	source = "registry+https://github.com/rust-lang/crates.io-index"
833	1061	checksum = "3eaf3ede3fee6db1a4c2ee091bf8a8b4dccdc6d17f656fb07896ee72867612f2"
834	1062
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	1068	+dependencies = [
	1069	+ "cc",
	1070	+ "pkg-config",
	1071	+ "vcpkg",
	1072	+]
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835	1074	[[package]]
836	1075	name = "litemap"
837	1076	version = "0.8.2"
838	1077	source = "registry+https://github.com/rust-lang/crates.io-index"
839	1078	checksum = "92daf443525c4cce67b150400bc2316076100ce0b3686209eb8cf3c31612e6f0"
840	1079
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	1085	+dependencies = [
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	1087	+]
	1088	+
841	1089	[[package]]
842	1090	name = "log"
843	1091	version = "0.4.33"
		@@ -850,6 +1098,16 @@ version = "0.9.2"
850	1098	source = "registry+https://github.com/rust-lang/crates.io-index"
851	1099	checksum = "8863b587001c1b9a8a4e36008cebc6b3612cb1226fe2de94858e06092687b608"
852	1100
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	1109	+]
	1110	+
853	1111	[[package]]
854	1112	name = "memchr"
855	1113	version = "2.8.3"
		@@ -898,6 +1156,15 @@ version = "0.2.2"
898	1156	source = "registry+https://github.com/rust-lang/crates.io-index"
899	1157	checksum = "521739c6d2bac4aa25192232afe6841231376b2b26d4d9fae5ecf8ca5772e441"
900	1158
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	2554	+version = "0.2.15"
	2555	+source = "registry+https://github.com/rust-lang/crates.io-index"
	2556	+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
	2557	+
1935	2558	[[package]]
1936	2559	name = "version_check"
1937	2560	version = "0.9.5"
		@@ -2008,6 +2631,12 @@ dependencies = [
2008	2631	"wasm-bindgen",
2009	2632	]
2010	2633
	2634	+[[package]]
	2635	+name = "whoami"
	2636	+version = "2.1.2"
	2637	+source = "registry+https://github.com/rust-lang/crates.io-index"
	2638	+checksum = "998767ef88740d1f5b0682a9c53c24431453923962269c2db68ee43788c5a40d"
	2639	+
2011	2640	[[package]]
2012	2641	name = "windows-link"

Showing the first 1000 lines of 1001. View the whole file at this revision.

Cargo.toml+4 −0View file

		@@ -4,5 +4,9 @@ version = "0.1.0"
4	4	edition = "2024"
5	5
6	6	[dependencies]
	7	+dotenvy = "0.15.7"
	8	+envy = "0.4.2"
	9	+serde = { version = "1.0.229", features = ["derive"] }
	10	+sqlx = { version = "0.9.0", default-features = false, features = ["runtime-tokio", "sqlite", "macros"] }
7	11	tokio = { version = "1.53.1", features = ["rt-multi-thread", "macros"] }
8	12	topcoat = "0.5.0"

src/application/config.rs+76 −0View file

		@@ -0,0 +1,76 @@
	1	+use std::path::PathBuf;
	2	+
	3	+use serde::Deserialize;
	4	+
	5	+/// Application configuration, read from `STEID_`-prefixed environment variables.
	6	+///
	7	+/// The bind address is deliberately absent: Topcoat owns it via `HOST` and `PORT`.
	8	+#[derive(Debug, Clone, Deserialize)]
	9	+pub struct AppConfig {
	10	+ /// SQLite connection string. Needs `mode=rwc` to create the file on first boot.
	11	+ #[serde(default = "default_database_url")]
	12	+ pub database_url: String,
	13	+
	14	+ /// Root directory for bare git repositories, laid out as `{data_dir}/{org}/{repo}.git`.
	15	+ ///
	16	+ /// Unread until Milestone 2 introduces `GitStorage`; carried now so the config
	17	+ /// surface matches the documented environment.
	18	+ #[allow(dead_code)]
	19	+ #[serde(default = "default_data_dir")]
	20	+ pub data_dir: PathBuf,
	21	+}
	22	+
	23	+fn default_database_url() -> String {
	24	+ "sqlite:steid.db?mode=rwc".to_owned()
	25	+}
	26	+
	27	+fn default_data_dir() -> PathBuf {
	28	+ PathBuf::from("./data")
	29	+}
	30	+
	31	+impl AppConfig {
	32	+ /// Loads configuration from the environment, applying defaults for anything unset.
	33	+ pub fn from_env() -> Result<Self, envy::Error> {
	34	+ envy::prefixed("STEID_").from_env()
	35	+ }
	36	+}
	37	+
	38	+#[cfg(test)]
	39	+mod tests {
	40	+ use super::*;
	41	+
	42	+ /// Builds a config from an explicit iterator rather than the process environment,
	43	+ /// so tests don't race on shared global state.
	44	+ fn from_pairs(pairs: &[(&str, &str)]) -> Result<AppConfig, envy::Error> {
	45	+ envy::prefixed("STEID_")
	46	+ .from_iter(pairs.iter().map(\|(k, v)\| ((k).to_owned(), (v).to_owned())))
	47	+ }
	48	+
	49	+ #[test]
	50	+ fn applies_defaults_when_environment_is_empty() {
	51	+ let config = from_pairs(&[]).expect("defaults should satisfy every field");
	52	+
	53	+ assert_eq!(config.database_url, "sqlite:steid.db?mode=rwc");
	54	+ assert_eq!(config.data_dir, PathBuf::from("./data"));
	55	+ }
	56	+
	57	+ #[test]
	58	+ fn reads_prefixed_variables() {
	59	+ let config = from_pairs(&[
	60	+ ("STEID_DATABASE_URL", "sqlite:custom.db?mode=rwc"),
	61	+ ("STEID_DATA_DIR", "/srv/steid/repos"),
	62	+ ])
	63	+ .expect("explicit values should parse");
	64	+
	65	+ assert_eq!(config.database_url, "sqlite:custom.db?mode=rwc");
	66	+ assert_eq!(config.data_dir, PathBuf::from("/srv/steid/repos"));
	67	+ }
	68	+
	69	+ #[test]
	70	+ fn ignores_unprefixed_variables() {
	71	+ let config = from_pairs(&[("DATA_DIR", "/should/be/ignored")])
	72	+ .expect("unprefixed keys should not interfere");
	73	+
	74	+ assert_eq!(config.data_dir, PathBuf::from("./data"));
	75	+ }
	76	+}

src/application/mod.rs+3 −0View file

		@@ -0,0 +1,3 @@
	1	+pub mod config;
	2	+
	3	+pub use config::AppConfig;

src/infrastructure/database.rs+10 −0View file

		@@ -0,0 +1,10 @@
	1	+use sqlx::SqlitePool;
	2	+use sqlx::sqlite::SqlitePoolOptions;
	3	+
	4	+/// Opens the SQLite pool.
	5	+///
	6	+/// The pool is cheap to clone and shared by reference across every request, so it is
	7	+/// registered once as Topcoat app context rather than rebuilt per handler.
	8	+pub async fn connect(database_url: &str) -> Result<SqlitePool, sqlx::Error> {
	9	+ SqlitePoolOptions::new().connect(database_url).await
	10	+}

src/infrastructure/mod.rs+2 −0View file

		@@ -0,0 +1,2 @@
	1	+pub mod database;
	2	+pub mod web;

src/infrastructure/web.rs+34 −0View file

		@@ -0,0 +1,34 @@
	1	+use sqlx::SqlitePool;
	2	+use topcoat::{
	3	+ Result,
	4	+ context::{Cx, app_context},
	5	+ router::page,
	6	+ view::view,
	7	+};
	8	+
	9	+/// Placeholder home page.
	10	+///
	11	+/// Milestone 0 only: it renders a value read through the pool to prove config,
	12	+/// database, and app context are wired end to end. Milestone 1 replaces it with the
	13	+/// profile page, which is the real home page.
	14	+#[page("/")]
	15	+async fn home(cx: &Cx) -> Result {
	16	+ let pool: &SqlitePool = app_context(cx);
	17	+ let sqlite_version: String = sqlx::query_scalar("select sqlite_version()")
	18	+ .fetch_one(pool)
	19	+ .await?;
	20	+
	21	+ view! {
	22	+ <!DOCTYPE html>
	23	+ <html>
	24	+ <head>
	25	+ <title>"steid"</title>
	26	+ topcoat::dev::script()
	27	+ </head>
	28	+ <body>
	29	+ <h1>"steid"</h1>
	30	+ <p>"sqlite " (sqlite_version)</p>
	31	+ </body>
	32	+ </html>
	33	+ }
	34	+}

src/main.rs+18 −30View file

		@@ -1,35 +1,23 @@
1		−use topcoat::{
2		− Result,
3		− router::{Router, RouterBuilderDiscoverExt, page},
4		− view::{component, view},
5		−};
	1	+mod application;
	2	+mod infrastructure;
	3	+
	4	+use application::AppConfig;
	5	+use topcoat::router::{Router, RouterBuilderDiscoverExt};
6	6
7	7	#[tokio::main]
8		−async fn main() {
9		− topcoat::start(Router::builder().discover().build())
10		− .await
11		− .unwrap();
12		−}
	8	+async fn main() -> Result<(), Box<dyn std::error::Error>> {
	9	+ dotenvy::dotenv().ok();
13	10
14		−#[page("/")]
15		−async fn home() -> Result {
16		− view! {
17		− <!DOCTYPE html>
18		− <html>
19		− <head>
20		− <title>"steid"</title>
21		− topcoat::dev::script()
22		− </head>
23		− <body>
24		− heading(name: "steid")
25		− </body>
26		− </html>
27		− }
28		−}
	11	+ let config = AppConfig::from_env()?;
	12	+ let pool = infrastructure::database::connect(&config.database_url).await?;
	13	+
	14	+ let router = Router::builder()
	15	+ .discover()
	16	+ .app_context(config)
	17	+ .app_context(pool)
	18	+ .build();
	19	+
	20	+ topcoat::start(router).await?;
29	21
30		−#[component]
31		−async fn heading(name: &str) -> Result {
32		− view! {
33		− <h1>(name)</h1>
34		− }
	22	+ Ok(())
35	23	}