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111 lines
3.8 KiB
Markdown
111 lines
3.8 KiB
Markdown
# Using Psalm’s Language Server
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Psalm now has built-in Language Server Compatibility support so you can run it in your favourite IDE.
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It currently supports diagnostics (i.e. finding errors and warnings), go-to-definition and hover, with limited support for autocompletion (PRs are welcome!).
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It works well in a variety of editors (listed alphabetically):
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## Emacs
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I got it working with [eglot](https://github.com/joaotavora/eglot)
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This is the config I used:
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```
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(when (file-exists-p "vendor/bin/psalm-language-server")
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(progn
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(require 'php-mode)
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(require 'eglot)
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(add-to-list 'eglot-server-programs '(php-mode . ("php" "vendor/bin/psalm-language-server")))
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(add-hook 'php-mode-hook 'eglot-ensure)
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(advice-add 'eglot-eldoc-function :around
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(lambda (oldfun)
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(let ((help (help-at-pt-kbd-string)))
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(if help (message "%s" help) (funcall oldfun)))))
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)
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)
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```
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## PhpStorm
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### Native Support
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As of PhpStorm 2020.3 support for psalm is supported and on by default, you can read more about that [here](https://www.jetbrains.com/help/phpstorm/using-psalm.html)
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### With LSP
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Alternatively, psalm works with `gtache/intellij-lsp` plugin ([Jetbrains-approved version](https://plugins.jetbrains.com/plugin/10209-lsp-support), [latest version](https://github.com/gtache/intellij-lsp/releases/tag/v1.6.0)).
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Setup is done via a GUI.
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When you install the plugin, you should see a "Language Server Protocol" section under the "Languages & Frameworks" tab.
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In the "Server definitions" tab you should add a definition for Psalm:
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- Select `Executable`
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- Extension: `php`
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- Path: `<path-to-php-binary>` e.g. `/usr/local/bin/php` or `C:\php\php.exe`
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- this should be an absolute path, not just `php`
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- Args: `vendor/bin/psalm-language-server` (on Windows use `vendor/vimeo/psalm/psalm-language-server`, or for a 'global' install '%APPDATA%' + `\Composer\vendor\vimeo\psalm\psalm-language-server`, where the '%APPDATA%' environment variable is probably something like `C:\Users\<homedir>\AppData\Roaming\`)
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In the "Timeouts" tab you can adjust the initialization timeout. This is important if you have a large project. You should set the "Init" value to the number of milliseconds you allow Psalm to scan your entire project and your project's dependencies. For opening a couple of projects that use large PHP frameworks, on a high-end business laptop, try `240000` milliseconds for Init.
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## Sublime Text
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I use the excellent Sublime [LSP plugin](https://github.com/tomv564/LSP) with the following config(Package Settings > LSP > Settings):
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```json
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"clients": {
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"psalm": {
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"command": ["php", "vendor/bin/psalm-language-server"],
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"selector": "source.php | embedding.php",
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"enabled": true
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}
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}
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```
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## Vim & Neovim
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**ALE**
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[ALE](https://github.com/w0rp/ale) has support for Psalm (since v2.3.0).
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```vim
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let g:ale_linters = { 'php': ['php', 'psalm'] }
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```
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**vim-lsp**
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I also got it working with [vim-lsp](https://github.com/prabirshrestha/vim-lsp)
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This is the config I used (for Vim):
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```vim
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au User lsp_setup call lsp#register_server({
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\ 'name': 'psalm-language-server',
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\ 'cmd': {server_info->[expand('vendor/bin/psalm-language-server')]},
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\ 'allowlist': ['php'],
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\ })
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```
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**coc.nvim**
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It also works with [coc.nvim](https://github.com/neoclide/coc.nvim).
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Add settings to `coc-settings.json`:
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```jsonc
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"languageserver": {
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"psalmls": {
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"command": "vendor/bin/psalm-language-server",
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"filetypes": ["php"],
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"rootPatterns": ["psalm.xml", "psalm.xml.dist"],
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"requireRootPattern": true
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}
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}
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```
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## VS Code
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[Get the Psalm plugin here](https://marketplace.visualstudio.com/items?itemName=getpsalm.psalm-vscode-plugin) (Requires VS Code 1.26+):
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