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docs(readme): add Arch Linux installation for dependencies #221

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3 changes: 3 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -479,6 +479,9 @@ The `.codegraph/config.json` file controls indexing:
# Linux (RHEL / Fedora)
sudo yum groupinstall "Development Tools"

# Linux (Arch / Arch-based)
sudo pacman -S base-devel python

# Then rebuild on any platform:
npm rebuild better-sqlite3

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4 changes: 3 additions & 1 deletion __tests__/sqlite-backend.test.ts
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Expand Up @@ -23,6 +23,7 @@ describe('buildWasmFallbackBanner — fix-recipe content', () => {
expect(banner).toContain('5-10x slower');
expect(banner).toContain('xcode-select --install');
expect(banner).toContain('apt install build-essential');
expect(banner).toContain('pacman -S base-devel');
expect(banner).toContain('npm rebuild better-sqlite3');
expect(banner).toContain('npm install better-sqlite3 --save');
expect(banner).toContain('codegraph status');
Expand All @@ -44,8 +45,9 @@ describe('buildWasmFallbackBanner — fix-recipe content', () => {
});

describe('WASM_FALLBACK_FIX_RECIPE — single source of truth', () => {
it('mentions the three recovery commands', () => {
it('mentions the recovery commands', () => {
expect(WASM_FALLBACK_FIX_RECIPE).toContain('xcode-select --install');
expect(WASM_FALLBACK_FIX_RECIPE).toContain('pacman -S base-devel');
expect(WASM_FALLBACK_FIX_RECIPE).toContain('npm rebuild better-sqlite3');
expect(WASM_FALLBACK_FIX_RECIPE).toContain(
'npm install better-sqlite3 --save'
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3 changes: 2 additions & 1 deletion src/db/sqlite-adapter.ts
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Expand Up @@ -28,7 +28,7 @@ export type SqliteBackend = 'native' | 'wasm';
* stderr banner and the MCP status formatter.
*/
export const WASM_FALLBACK_FIX_RECIPE =
'`xcode-select --install` (macOS) or `apt install build-essential` (Debian/Ubuntu), ' +
'`xcode-select --install` (macOS), `apt install build-essential` (Debian/Ubuntu), or `pacman -S base-devel` (Arch), ' +
'then `npm rebuild better-sqlite3`, or `npm install better-sqlite3 --save` to force-include it.';

/**
Expand All @@ -55,6 +55,7 @@ export function buildWasmFallbackBanner(nativeError?: string): string {
'Fix on Linux:',
' sudo apt install build-essential python3 make # Debian/Ubuntu',
' # or: sudo yum groupinstall "Development Tools" # RHEL/Fedora',
' # or: sudo pacman -S base-devel python # Arch Linux',
' npm rebuild better-sqlite3',
'',
'Or force-include as a hard dependency on any platform:',
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