# Description of Changes
Previously, `VITE_*` environment variables were scattered across the
codebase with hardcoded fallback values inline (e.g.
`import.meta.env.VITE_STRIPE_KEY || 'pk_live_...'`). This made it
unclear which variables
were required, what they were for, and caused real keys to be silently
used in builds where they hadn't been explicitly configured.
## What's changed
I've added `frontend/.env.example` and `frontend/.env.desktop.example`,
which declare every `VITE_*` variable the app uses, with comments
explaining each one and sensible defaults where applicable. These
are the source of truth for what's required.
I've added a setup script which runs before `npm run dev`, `build`,
`tauri-dev`, and all `tauri-build*` commands. It:
- Creates your local `.env` / `.env.desktop` from the example files on
first run, so you don't need to do anything manually
- Errors if you're missing keys that the example defines (e.g. after
pulling changes that added a new variable). These can either be
manually-set env vars, or in your `.env` file (env vars take precedence
over `.env` file vars when running)
- Warns if you have `VITE_*` variables set in your environment that
aren't listed in any example file
I've removed all `|| 'hardcoded-value'` defaults from source files
because they are not necessary in this system, as all variables must be
explicitly set (they can be set to `VITE_ENV_VAR=`, just as long as the
variable actually exists). I think this system will make it really
obvious exactly what you need to set and what's actually running in the
code.
I've added a test that checks that every `import.meta.env.VITE_*`
reference found in source is present in at least one example file, so
new variables can't be added without being documented.
## For contributors
New contributors shouldn't need to do anything - `npm run dev` will
create your `.env` automatically.
If you already have a `.env` file in the `frontend/` folder, you may
well need to update it to make the system happy. Here's an example
output from running `npm run dev` with an old `.env` file:
```
$ npm run dev
> frontend@0.1.0 dev
> npm run prep && vite
> frontend@0.1.0 prep
> tsx scripts/setup-env.ts && npm run generate-icons
setup-env: see frontend/README.md#environment-variables for documentation
setup-env: .env is missing keys from config/.env.example:
VITE_GOOGLE_DRIVE_CLIENT_ID
VITE_GOOGLE_DRIVE_API_KEY
VITE_GOOGLE_DRIVE_APP_ID
VITE_PUBLIC_POSTHOG_KEY
VITE_PUBLIC_POSTHOG_HOST
Add them manually or delete your local file to re-copy from the example.
setup-env: the following VITE_ vars are set but not listed in any example file:
VITE_DEV_BYPASS_AUTH
Add them to config/.env.example or config/.env.desktop.example if they are required.
```
If you add a new `VITE_*` variable to the codebase, add it to the
appropriate `frontend/config/.env.example` file or the test will fail.
# Description of Changes
Inspired by https://github.com/pydantic/pydantic-ai/pull/4169, this PR
moves our `CLAUDE.md` advice to the more generic `AGENTS.md` file (which
works on Codex, Gemini, etc). It also adds a symlink from `CLAUDE.md` to
`AGENTS.md`, which Claude follows properly, so all AIs should get the
same advice and we only need to keep one file up-to-date.
# Description of Changes
This pull request introduces several improvements to enhance error
handling, internationalization, and documentation in the codebase. The
key changes include the addition of `ExceptionUtils` and `I18nUtils`
utility classes for consistent exception handling and internationalized
messages, updates to documentation paths, and modifications to existing
methods to integrate the new utilities.
### Error Handling Enhancements:
* **Added `ExceptionUtils` utility class**: Provides standardized
methods for creating and handling exceptions with internationalized
error messages, including specific handling for PDF corruption,
encryption issues, and other file-related errors.
* **Integrated `ExceptionUtils` into `CustomPDFDocumentFactory`**:
Updated `loadFromFile` and `loadFromBytes` methods to log and handle
exceptions using `ExceptionUtils`, ensuring consistent error handling
across PDF operations.
[[1]](diffhunk://#diff-10208c1fc2e04631a8cf2a2a99b2a1160e532e75a7b840ad752f3b0130b89851R358-R363)
[[2]](diffhunk://#diff-10208c1fc2e04631a8cf2a2a99b2a1160e532e75a7b840ad752f3b0130b89851R375-R381)
* **Updated `FileToPdf` to use `ExceptionUtils`**: Replaced direct
exception throwing with `ExceptionUtils.createHtmlFileRequiredException`
for unsupported file formats.
### Internationalization Improvements:
* **Added `I18nUtils` utility class**: Centralized access to Spring's
`MessageSource` for retrieving localized messages, enabling consistent
internationalization across the application.
### Documentation Updates:
* **Updated documentation paths in `CONTRIBUTING.md` and `README.md`**:
Changed paths to reference the new `devGuide` folder for developer
documentation and translation guides.
[[1]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L28-R28)
[[2]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L40-R51)
[[3]](diffhunk://#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L171-L174)
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.
---------
Co-authored-by: a <a>
