| Dimension | Shared | Only in A | Only in B | Overlap |
|---|---|---|---|---|
| Sections | 0 | 14 | 5 | 0% |
| Commands | 6 | 18 | 1 | 24% |
| Section tags | 5 | 4 | 3 | 42% |
What each file covers
Sections
0 shared · 14 only in A · 5 only in B- − Instructions for GitHub Copilot
- − Purpose
- − Single Sources of Truth (SOT)
- − Build & Run (local dev; use Makefile first)
- − Tests & Lint
- − Project Structure & Languages
- − Code Review Instructions (for Copilot)
- − Style & Patterns
- − Commits & Pull Requests
- − Performance & Reliability
- − When Unsure
- − References To Help Copilot Answer Questions
- − Output Expectations
- − Safety Checklist Before Proposing a CLI Command
- + Backend Instructions (Go)
- + Style
- + Package Boundaries & Filesystem
- + Tests
- + API, Config & Schema
Commands
6 shared · 18 only in A · 1 only in B- − make help
- − make list
- − make docker-build
- − docker compose up
- − docker compose logs -f --tail=100 photoprism
- − make dep
- − make build-js
- − make build-go
- − make watch-js
- − make test
- − make test-js
- − make vitest-watch
- − make vitest-coverage
- − make fmt-js
- − make lint-js
- − go.mod
- − go.sum
- − make notice
- + make reset-testdb
- make test-go
- make test-short
- go test ./internal/<pkg> -run '<TestName>' -count=1
- make fmt-go
- make lint-go
- make fmt-go swag-fmt swag
Section tags
5 shared · 4 only in A · 3 only in B- − build
- − architecture
- − git-pr
- − performance
- + types
- + database
- + api
- test
- lint-format
- code-style
- do-not
- agent-behaviour
Line diff
photoprism/photoprism · .github/copilot-instructions.md
@@ −1 @@
1# Instructions for GitHub Copilot
2
3**Last Updated:** July 28, 2026
4
5## Purpose
6
7- Provide Copilot with the single sources of truth for building, testing, and contributing to PhotoPrism.
8- Improve PR reviews and code suggestions by aligning them with our documented workflows and style.
9- Path-specific rules that apply on top of this file live in `.github/instructions/*.instructions.md`.
10
11## Single Sources of Truth (SOT)
12
13- Makefile targets (always prefer existing targets): https://github.com/photoprism/photoprism/blob/develop/Makefile
14- Developer Guide – Setup: https://docs.photoprism.app/developer-guide/setup/
15- Developer Guide – Tests: https://docs.photoprism.app/developer-guide/tests/
16- Contributing: https://github.com/photoprism/photoprism/blob/develop/CONTRIBUTING.md
17- Security: https://github.com/photoprism/photoprism/blob/develop/SECURITY.md
18- REST API (Swagger): https://docs.photoprism.dev/
19- REST API Guide: https://docs.photoprism.app/developer-guide/api/
20- Agents reference for tools/commands: https://github.com/photoprism/photoprism/blob/develop/AGENTS.md
21- Code maps: https://github.com/photoprism/photoprism/blob/develop/CODEMAP.md (backend) and https://github.com/photoprism/photoprism/blob/develop/frontend/CODEMAP.md (frontend)
22- Terminology: https://github.com/photoprism/photoprism/blob/develop/GLOSSARY.md
23
24## Build & Run (local dev; use Makefile first)
25
26- Show common tasks: `make help` (`make list` shows all targets)
27- Build local image: `make docker-build`
28- Start dev env: `docker compose up` (add `-d` for detached, or run `make up`)
29- Logs: `docker compose logs -f --tail=100 photoprism`
30- Open app: http://localhost:2342/ (HTTP) / https://app.localssl.dev/ (TLS via Traefik when enabled)
31- From the dev container:
32 - Install deps: `make dep`
33 - Build frontend: `make build-js` (or `cd frontend && npm run build`)
34 - Build backend: `make build-go`
35 - Watch frontend: `make watch-js` (stop with Ctrl+C)
36 - Run server binary: `./photoprism start`
37
38## Tests & Lint
39
40- Full tests: `make test`
41- Frontend tests (Vitest): `make test-js` (watch: `make vitest-watch`, coverage: `make vitest-coverage`)
42- Backend tests: `make test-go` (slow); `make test-short` for a fast parallel run
43- Targeted Go tests: `go test ./internal/<pkg> -run '<TestName>' -count=1`
44- Formatting and linting:
45 - Go: `make fmt-go` (gofmt + goimports) and `make lint-go` (golangci-lint)
46 - JS/Vue: `make fmt-js` and `make lint-js`. ESLint owns JS and Vue; Prettier owns CSS/SCSS/SASS only. ESLint does not run Prettier, so do not propose reflowing JS to satisfy Prettier.
47- Swagger: after changing API handlers or annotations, run `make fmt-go swag-fmt swag`; never edit `internal/api/swagger.json` by hand.
48- Dependencies: when `go.mod`, `go.sum`, or `package-lock.json` change, regenerate the license reports with `make notice`; never edit `NOTICE` or `frontend/NOTICE` manually.
49
50## Project Structure & Languages
51
52- Backend: Go (`internal/`, `pkg/`, `cmd/`) + MariaDB/SQLite
53- Frontend: Vue 3 + Vuetify 3 (`frontend/`)
54- Docker/compose for dev/CI; Traefik used for local TLS in dev profile when enabled.
55- A maintainer's working copy may contain private subdirectories (`plus/`, `pro/`, `portal/`, `specs/`) that are not part of this repository. Never reference their paths from public artifacts such as pull request descriptions, issue comments, or code comments — external readers only see a broken link.
56
57## Code Review Instructions (for Copilot)
58
59- Respect SOT above; do not invent flags, env vars, or Compose options. If a command/env var is not in the docs/Makefile/CLI help, say "not documented" and suggest checking the SOT.
60- Prefer minimal, surgical diffs. Propose changes as concrete patches and reference the relevant Makefile target or doc section.
61- Before suggesting refactors, check tests and build tasks exist and can pass with the change. If tests are missing, suggest specific Vitest/Go test snippets.
62- Security: never suggest committing secrets; prefer env vars and `.env` in dev only. Point to SECURITY.md for disclosures.
63- Data safety: never run or recommend destructive CLI operations in examples without explicit backups and `--yes`. Avoid `photoprism reset`, `photoprism users reset`, `photoprism auth reset`, or `photoprism audit reset` in PR comments unless the change is specifically about those commands; if unavoidable, add bold warnings and backup steps.
64- Database/schema: if a change touches persistence, check for migrations and mention `photoprism migrate` / `migrations` commands.
65- API changes: align with the REST API docs/spec; include curl examples only if they match current endpoints and auth notes.
66- UX/i18n: keep UI strings concise, translatable, and consistent; avoid hard-coded language constructs; prefer existing patterns/components.
67
68## Style & Patterns
69
70- Go: idiomatic Go, clear error handling, small functions, packages with focused responsibilities. Keep the public surface minimal.
71 - Every added function, including unexported helpers and helpers extracted by a refactor, needs focused coverage in a sibling `*_test.go`.
72 - Code in `pkg/*` must not import from `internal/*`; new code that needs config, entity, or DB access belongs under `internal/`.
73 - Use the permission constants in `pkg/fs` (`fs.ModeDir`, `fs.ModeFile`, `fs.ModeConfigFile`, `fs.ModeSecretFile`) instead of literal file modes.
74 - Doc comments start with the name and stay compact — one line for the "what", plus a line or two only when the "why" cannot be inferred from the code. No issue numbers or change history in comments.
75- Vue/JS: Options API only. Do not introduce TypeScript (no `.ts` files, no `<script lang="ts">`), Composition API, or `<script setup>`.
76 - Shared state lives in reactive singleton modules under `src/common/` and `src/app/`. Do not propose Vuex or Pinia.
77 - Every user-visible string must go through `$gettext`, so it reaches `frontend/src/locales/translations.pot`. Standardized technical identifiers (`Client ID`, `OIDC`, `UUID`) stay literal.
78 - Prefer existing components and model methods over raw `$api` calls in components.
79- Config & flags: suggest `photoprism --help`, `photoprism show config-options` or `photoprism show config-yaml` to verify names before using them.
80
81## Commits & Pull Requests
82
83- Commit subjects use the imperative mood with a one-word scope prefix, for example `Config: Add tests for "darktable-cli" path detection`, and must not exceed 80 characters.
84- Reference related issue or PR IDs in the message when applicable, for example `Docker: Use two stage build to reduce image size #123 #5632`.
85- Do not add AI-authorship trailers such as `Co-Authored-By: Copilot` — this repository uses no commit trailers.
86- Issue titles follow the same prefix style; descriptions open with a bold user story (`**As a <role>, I want <goal>, so that <outcome>.**`) and close with a checklist of acceptance criteria using MUST, SHOULD, or MAY.
87- Commit messages, code comments, and public issue or PR text must not describe exploitable details of a security fix; present such changes as general hardening.
88
89## Performance & Reliability
90
91- Prefer using existing caches, workers, and batching strategies referenced in code and Makefile. Consider memory/CPU impact; suggest benchmarks or profiling only when justified.
92
93## When Unsure
94
95- Ask for the exact Makefile target or doc link you need, then proceed. Defer to SOT if any conflict arises.
96
97## References To Help Copilot Answer Questions
98
99- Show supported formats/filters: run `photoprism show file-formats` and `photoprism show search-filters` (use results rather than guessing).
100- For CI/dev containers, assume a Linux/Unix shell on amd64 or arm64 by default; for Windows specifics, link https://docs.photoprism.app/developer-guide/faq/
101
102## Output Expectations
103
104- Prefer short, actionable comments with code blocks that pass tests locally: `make test-js` (frontend) / `make test-go` (backend)
105- If a suggestion requires additional context (e.g., DB access, external service), call it out explicitly.
106
107## Safety Checklist Before Proposing a CLI Command
108
109- Include a dry-run or non-destructive variant if possible.
110- Recommend creating/using backups before any reset/migrate.
111
photoprism/photoprism · .github/instructions/backend.instructions.md
@@ +1 @@
1---
2applyTo: "internal/**,pkg/**,cmd/**"
3---
4
5# Backend Instructions (Go)
6
7**Last Updated:** July 28, 2026
8
9Package-level rules live in the nearest `AGENTS.md`, for example `internal/AGENTS.md`, `internal/api/AGENTS.md`, `internal/config/AGENTS.md`, `internal/commands/AGENTS.md`, and `pkg/AGENTS.md`.
10
11## Style
12
13- Keep functions small and focused, wrap errors with context, and keep the exported surface minimal.
14- Doc comments begin with the name of the identifier and stay compact: one line for the "what", plus a line or two only when the "why" cannot be inferred from the code. No issue numbers, no change history.
15- Every package contains a `<package>.go` file with the license header and a short package comment.
16- Run `make fmt-go` (gofmt + goimports) and `make lint-go` after edits; never hand-format indentation.
17
18## Package Boundaries & Filesystem
19
20- `pkg/*` must not import from `internal/*`. Code that needs config, entity, or database access belongs under `internal/`.
21- Use the permission constants from `pkg/fs` (`fs.ModeDir`, `fs.ModeFile`, `fs.ModeConfigFile`, `fs.ModeSecretFile`) instead of literal file modes, and alias the standard library as `iofs "io/fs"` where both are needed.
22- Use `filepath.Join` for filesystem paths and reserve `path.Join` for URL paths.
23
24## Tests
25
26- Every added function, including unexported helpers and helpers extracted by a refactor, needs a matching `Test<Name>` in a sibling `*_test.go`, with at least a success and a failure case.
27- Group cases with `t.Run(...)` and PascalCase names such as `Success` or `InvalidRequest`.
28- Prefer focused runs — `go test ./internal/<pkg> -run '<TestName>' -count=1` — over `make test-go`, which takes about 20 minutes. `make test-short` is the fast full pass, and `make reset-testdb` resets the test databases.
29
30## API, Config & Schema
31
32- Keep handlers thin, register new routes in `internal/server/routes.go`, and regenerate the documentation with `make fmt-go swag-fmt swag`. Never edit `internal/api/swagger.json` by hand.
33- Declare new config options in `internal/config/options.go`, register them in `internal/config/flags.go`, and expose a getter. Confirm names with `photoprism --help`, `photoprism show config-options`, or `photoprism show config-yaml` before suggesting them.
34- Schema changes need a migration in `internal/entity/migrate/`; verify with `photoprism migrations ls` and `photoprism migrations run`.
35
@@ −1 +1 @@
1−# Instructions for GitHub Copilot
1+---
2+applyTo: "internal/**,pkg/**,cmd/**"
3+---
24
5+# Backend Instructions (Go)
6+
37 **Last Updated:** July 28, 2026
48
5−## Purpose
9+Package-level rules live in the nearest `AGENTS.md`, for example `internal/AGENTS.md`, `internal/api/AGENTS.md`, `internal/config/AGENTS.md`, `internal/commands/AGENTS.md`, and `pkg/AGENTS.md`.
610
7−- Provide Copilot with the single sources of truth for building, testing, and contributing to PhotoPrism.
8−- Improve PR reviews and code suggestions by aligning them with our documented workflows and style.
9−- Path-specific rules that apply on top of this file live in `.github/instructions/*.instructions.md`.
11+## Style
1012
11−## Single Sources of Truth (SOT)
13+- Keep functions small and focused, wrap errors with context, and keep the exported surface minimal.
14+- Doc comments begin with the name of the identifier and stay compact: one line for the "what", plus a line or two only when the "why" cannot be inferred from the code. No issue numbers, no change history.
15+- Every package contains a `<package>.go` file with the license header and a short package comment.
16+- Run `make fmt-go` (gofmt + goimports) and `make lint-go` after edits; never hand-format indentation.
1217
13−- Makefile targets (always prefer existing targets): https://github.com/photoprism/photoprism/blob/develop/Makefile
14−- Developer Guide – Setup: https://docs.photoprism.app/developer-guide/setup/
15−- Developer Guide – Tests: https://docs.photoprism.app/developer-guide/tests/
16−- Contributing: https://github.com/photoprism/photoprism/blob/develop/CONTRIBUTING.md
17−- Security: https://github.com/photoprism/photoprism/blob/develop/SECURITY.md
18−- REST API (Swagger): https://docs.photoprism.dev/
19−- REST API Guide: https://docs.photoprism.app/developer-guide/api/
20−- Agents reference for tools/commands: https://github.com/photoprism/photoprism/blob/develop/AGENTS.md
21−- Code maps: https://github.com/photoprism/photoprism/blob/develop/CODEMAP.md (backend) and https://github.com/photoprism/photoprism/blob/develop/frontend/CODEMAP.md (frontend)
22−- Terminology: https://github.com/photoprism/photoprism/blob/develop/GLOSSARY.md
18+## Package Boundaries & Filesystem
2319
24−## Build & Run (local dev; use Makefile first)
20+- `pkg/*` must not import from `internal/*`. Code that needs config, entity, or database access belongs under `internal/`.
21+- Use the permission constants from `pkg/fs` (`fs.ModeDir`, `fs.ModeFile`, `fs.ModeConfigFile`, `fs.ModeSecretFile`) instead of literal file modes, and alias the standard library as `iofs "io/fs"` where both are needed.
22+- Use `filepath.Join` for filesystem paths and reserve `path.Join` for URL paths.
2523
26−- Show common tasks: `make help` (`make list` shows all targets)
27−- Build local image: `make docker-build`
28−- Start dev env: `docker compose up` (add `-d` for detached, or run `make up`)
29−- Logs: `docker compose logs -f --tail=100 photoprism`
30−- Open app: http://localhost:2342/ (HTTP) / https://app.localssl.dev/ (TLS via Traefik when enabled)
31−- From the dev container:
32− - Install deps: `make dep`
33− - Build frontend: `make build-js` (or `cd frontend && npm run build`)
34− - Build backend: `make build-go`
35− - Watch frontend: `make watch-js` (stop with Ctrl+C)
36− - Run server binary: `./photoprism start`
24+## Tests
3725
38−## Tests & Lint
26+- Every added function, including unexported helpers and helpers extracted by a refactor, needs a matching `Test<Name>` in a sibling `*_test.go`, with at least a success and a failure case.
27+- Group cases with `t.Run(...)` and PascalCase names such as `Success` or `InvalidRequest`.
28+- Prefer focused runs — `go test ./internal/<pkg> -run '<TestName>' -count=1` — over `make test-go`, which takes about 20 minutes. `make test-short` is the fast full pass, and `make reset-testdb` resets the test databases.
3929
40−- Full tests: `make test`
41−- Frontend tests (Vitest): `make test-js` (watch: `make vitest-watch`, coverage: `make vitest-coverage`)
42−- Backend tests: `make test-go` (slow); `make test-short` for a fast parallel run
43−- Targeted Go tests: `go test ./internal/<pkg> -run '<TestName>' -count=1`
44−- Formatting and linting:
45− - Go: `make fmt-go` (gofmt + goimports) and `make lint-go` (golangci-lint)
46− - JS/Vue: `make fmt-js` and `make lint-js`. ESLint owns JS and Vue; Prettier owns CSS/SCSS/SASS only. ESLint does not run Prettier, so do not propose reflowing JS to satisfy Prettier.
47−- Swagger: after changing API handlers or annotations, run `make fmt-go swag-fmt swag`; never edit `internal/api/swagger.json` by hand.
48−- Dependencies: when `go.mod`, `go.sum`, or `package-lock.json` change, regenerate the license reports with `make notice`; never edit `NOTICE` or `frontend/NOTICE` manually.
30+## API, Config & Schema
4931
50−## Project Structure & Languages
51−
52−- Backend: Go (`internal/`, `pkg/`, `cmd/`) + MariaDB/SQLite
53−- Frontend: Vue 3 + Vuetify 3 (`frontend/`)
54−- Docker/compose for dev/CI; Traefik used for local TLS in dev profile when enabled.
55−- A maintainer's working copy may contain private subdirectories (`plus/`, `pro/`, `portal/`, `specs/`) that are not part of this repository. Never reference their paths from public artifacts such as pull request descriptions, issue comments, or code comments — external readers only see a broken link.
56−
57−## Code Review Instructions (for Copilot)
58−
59−- Respect SOT above; do not invent flags, env vars, or Compose options. If a command/env var is not in the docs/Makefile/CLI help, say "not documented" and suggest checking the SOT.
60−- Prefer minimal, surgical diffs. Propose changes as concrete patches and reference the relevant Makefile target or doc section.
61−- Before suggesting refactors, check tests and build tasks exist and can pass with the change. If tests are missing, suggest specific Vitest/Go test snippets.
62−- Security: never suggest committing secrets; prefer env vars and `.env` in dev only. Point to SECURITY.md for disclosures.
63−- Data safety: never run or recommend destructive CLI operations in examples without explicit backups and `--yes`. Avoid `photoprism reset`, `photoprism users reset`, `photoprism auth reset`, or `photoprism audit reset` in PR comments unless the change is specifically about those commands; if unavoidable, add bold warnings and backup steps.
64−- Database/schema: if a change touches persistence, check for migrations and mention `photoprism migrate` / `migrations` commands.
65−- API changes: align with the REST API docs/spec; include curl examples only if they match current endpoints and auth notes.
66−- UX/i18n: keep UI strings concise, translatable, and consistent; avoid hard-coded language constructs; prefer existing patterns/components.
67−
68−## Style & Patterns
69−
70−- Go: idiomatic Go, clear error handling, small functions, packages with focused responsibilities. Keep the public surface minimal.
71− - Every added function, including unexported helpers and helpers extracted by a refactor, needs focused coverage in a sibling `*_test.go`.
72− - Code in `pkg/*` must not import from `internal/*`; new code that needs config, entity, or DB access belongs under `internal/`.
73− - Use the permission constants in `pkg/fs` (`fs.ModeDir`, `fs.ModeFile`, `fs.ModeConfigFile`, `fs.ModeSecretFile`) instead of literal file modes.
74− - Doc comments start with the name and stay compact — one line for the "what", plus a line or two only when the "why" cannot be inferred from the code. No issue numbers or change history in comments.
75−- Vue/JS: Options API only. Do not introduce TypeScript (no `.ts` files, no `<script lang="ts">`), Composition API, or `<script setup>`.
76− - Shared state lives in reactive singleton modules under `src/common/` and `src/app/`. Do not propose Vuex or Pinia.
77− - Every user-visible string must go through `$gettext`, so it reaches `frontend/src/locales/translations.pot`. Standardized technical identifiers (`Client ID`, `OIDC`, `UUID`) stay literal.
78− - Prefer existing components and model methods over raw `$api` calls in components.
79−- Config & flags: suggest `photoprism --help`, `photoprism show config-options` or `photoprism show config-yaml` to verify names before using them.
80−
81−## Commits & Pull Requests
82−
83−- Commit subjects use the imperative mood with a one-word scope prefix, for example `Config: Add tests for "darktable-cli" path detection`, and must not exceed 80 characters.
84−- Reference related issue or PR IDs in the message when applicable, for example `Docker: Use two stage build to reduce image size #123 #5632`.
85−- Do not add AI-authorship trailers such as `Co-Authored-By: Copilot` — this repository uses no commit trailers.
86−- Issue titles follow the same prefix style; descriptions open with a bold user story (`**As a <role>, I want <goal>, so that <outcome>.**`) and close with a checklist of acceptance criteria using MUST, SHOULD, or MAY.
87−- Commit messages, code comments, and public issue or PR text must not describe exploitable details of a security fix; present such changes as general hardening.
88−
89−## Performance & Reliability
90−
91−- Prefer using existing caches, workers, and batching strategies referenced in code and Makefile. Consider memory/CPU impact; suggest benchmarks or profiling only when justified.
92−
93−## When Unsure
94−
95−- Ask for the exact Makefile target or doc link you need, then proceed. Defer to SOT if any conflict arises.
96−
97−## References To Help Copilot Answer Questions
98−
99−- Show supported formats/filters: run `photoprism show file-formats` and `photoprism show search-filters` (use results rather than guessing).
100−- For CI/dev containers, assume a Linux/Unix shell on amd64 or arm64 by default; for Windows specifics, link https://docs.photoprism.app/developer-guide/faq/
101−
102−## Output Expectations
103−
104−- Prefer short, actionable comments with code blocks that pass tests locally: `make test-js` (frontend) / `make test-go` (backend)
105−- If a suggestion requires additional context (e.g., DB access, external service), call it out explicitly.
106−
107−## Safety Checklist Before Proposing a CLI Command
108−
109−- Include a dry-run or non-destructive variant if possible.
110−- Recommend creating/using backups before any reset/migrate.
32+- Keep handlers thin, register new routes in `internal/server/routes.go`, and regenerate the documentation with `make fmt-go swag-fmt swag`. Never edit `internal/api/swagger.json` by hand.
33+- Declare new config options in `internal/config/options.go`, register them in `internal/config/flags.go`, and expose a getter. Confirm names with `photoprism --help`, `photoprism show config-options`, or `photoprism show config-yaml` before suggesting them.
34+- Schema changes need a migration in `internal/entity/migrate/`; verify with `photoprism migrations ls` and `photoprism migrations run`.
11135
