setup

.eslintrc.json

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+{
+  "root": true,
+  "env": {
+    "es2020": true,
+    "node": true
+  },
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint"],
+  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"]
+}

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+
+# misc
+.DS_Store

.prettierrc

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+{
+  "printWidth": 120,
+  "singleQuote": false
+}

CHANGELOG.md

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+# PHP Changelog
+
+## [Initial Version] - 2023-01-23

README.md

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+# PHP
+
+Switch PHP version with Homebrew

package.json

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+{
+  "$schema": "https://www.raycast.com/schemas/extension.json",
+  "name": "php",
+  "title": "Switch PHP version with Homebrew",
+  "description": "Switch PHP version with Homebrew",
+  "icon": "icon.png",
+  "author": "David",
+  "owner": "woda",
+  "license": "MIT",
+  "commands": [
+    {
+      "name": "php",
+      "title": "PHP",
+      "description": "Switch PHP version with Homebrew",
+      "mode": "view",
+      "preferences": [
+        {
+          "name": "7.4",
+          "required": false,
+          "title": "PHP 7.4",
+          "type": "checkbox",
+          "description": "PHP 7.4 installed?"
+        },
+        {
+          "name": "8.0",
+          "required": false,
+          "title": "PHP 8.0",
+          "type": "checkbox",
+          "description": "PHP 8.0 installed?"
+        },
+        {
+          "name": "8.1",
+          "required": false,
+          "title": "PHP 8.1",
+          "type": "checkbox",
+          "description": "PHP 8.1 installed?"
+        },
+        {
+          "name": "8.2",
+          "required": false,
+          "title": "PHP 8.2",
+          "type": "checkbox",
+          "description": "PHP 8.2 installed?"
+        }
+      ]
+    }
+  ],
+  "dependencies": {
+    "@raycast/api": "^1.46.0",
+    "@raycast/utils": "^1.4.16"
+  },
+  "devDependencies": {
+    "@types/node": "18.8.3",
+    "@types/react": "18.0.9",
+    "@typescript-eslint/eslint-plugin": "^5.0.0",
+    "@typescript-eslint/parser": "^5.0.0",
+    "eslint": "^7.32.0",
+    "eslint-config-prettier": "^8.3.0",
+    "prettier": "^2.5.1",
+    "typescript": "^4.4.3"
+  },
+  "scripts": {
+    "build": "ray build -e dist",
+    "dev": "ray develop",
+    "fix-lint": "ray lint --fix",
+    "lint": "ray lint",
+    "publish": "ray publish"
+  }
+}

src/php.tsx

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+import {
+    Action,
+    ActionPanel,
+    Clipboard,
+    Toast,
+    showToast,
+    popToRoot,
+    List,
+} from '@raycast/api';
+import { exec } from 'child_process';
+import { useMemo, useState } from 'react';
+import { useExec } from "@raycast/utils";
+
+interface Version {
+    name: string;
+    value: string;
+}
+
+const phpRegex = new RegExp('^(php[\\s@])');
+const versionRegex = new RegExp('^(\\d+\\.\\d+)');
+
+const handleError = async (message: string) => {
+    await Clipboard.copy(message);
+    void showToast({
+        title: 'Error',
+        message: 'Message copied to your clipboard',
+        style: Toast.Style.Failure,
+    });
+    return;
+}
+
+const linkVersion = (version: Version, unlinkVersions: string[]) => {
+    showToast({
+        title: `Linking PHP ${version.name}`,
+        style: Toast.Style.Animated,
+    });
+    const commands: string[] = [];
+    unlinkVersions.forEach((v) => {
+        commands.push(`brew unlink ${v}`);
+    });
+    commands.push(`brew link ${version.value}`);
+    const command = commands.join(' && ');
+    exec(command, (error, _stdout, stderr) => {
+        if (error) {
+            return handleError(error.message);
+        }
+        if (stderr) {
+            return handleError(stderr);
+        }
+        showToast({
+            title: `Successfully linked PHP ${version.name}`,
+            style: Toast.Style.Success,
+        }).then(() => {
+            popToRoot();
+        });;
+    });
+}
+
+export default function Command() {
+    const { isLoading, data } = useExec('/usr/local/bin/brew', ['list', '--versions']);
+    const [linkingInProgress, setLinkingInProgress] = useState(false);
+    const [linkedVersion, setLinkedVersion] = useState('');
+
+    const versions: Version[] = useMemo(() => {
+        if (isLoading) {
+            return [];
+        }
+        const newVersions: Version[] = [];
+        const entries = (data || '').split('\n');
+        entries.forEach((entry) => {
+            if (!phpRegex.test(entry)) {
+                return;
+            }
+            const [name, version] = entry.split(' ');
+            const simpleVersion = versionRegex.exec(version);
+            if (!simpleVersion) {
+                return;
+            }
+            newVersions.push({ name: simpleVersion[0], value: name });
+        });
+        return newVersions;
+    }, [data, isLoading]);
+
+    return <List
+        navigationTitle="Link PHP Version"
+        searchBarPlaceholder="Link PHP Version"
+    >
+        {linkingInProgress || versions.length === 0 ? (
+            <List.EmptyView
+                title={linkingInProgress ? `Linking PHP ${linkedVersion}` : 'Loading...'}
+                icon={{ source: "icon-small.png" }}
+            />
+        ) : (
+            versions.map((version) => (
+                <List.Item
+                    key={version.value}
+                    title={version.name}
+                    actions={
+                    <ActionPanel>
+                        <Action
+                            title="Link"
+                            onAction={() => {
+                                setLinkingInProgress(true);
+                                setLinkedVersion(version.name);
+                                linkVersion(
+                                    version,
+                                    versions.reduce(
+                                        (acc, v) => {
+                                            if (v.value !== version.value) {
+                                                acc.push(v.value);
+                                            }
+                                            return acc;
+                                        },
+                                        [] as string[]
+                                    )
+                                )
+                            }} />
+                    </ActionPanel>
+                    }
+                />
+            ))
+        )}
+    </List>
+}

tsconfig.json

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+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "display": "Node 16",
+  "include": ["src/**/*"],
+  "compilerOptions": {
+    "lib": ["es2021"],
+    "module": "commonjs",
+    "target": "es2021",
+    "strict": true,
+    "isolatedModules": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "jsx": "react-jsx",
+    "resolveJsonModule": true
+  }
+}