Add pi global install scripts (#57)

package.json

@@ -38,6 +38,8 @@
     "test": "node --import ./src/resources/extensions/gsd/tests/resolve-ts.mjs --experimental-strip-types --test 'src/resources/extensions/gsd/tests/*.test.ts' 'src/resources/extensions/gsd/tests/*.test.mjs' 'src/tests/*.test.ts'",
     "dev": "tsc --watch",
     "postinstall": "node scripts/postinstall.js",
+    "pi:install-global": "node scripts/install-pi-global.js",
+    "pi:uninstall-global": "node scripts/uninstall-pi-global.js",
     "sync-pkg-version": "node scripts/sync-pkg-version.cjs",
     "prepublishOnly": "npm run sync-pkg-version && npm run build"
   },

scripts/install-pi-global.js

@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+import { cpSync, existsSync, mkdirSync, readFileSync, writeFileSync } from 'node:fs'
+import os from 'node:os'
+import { dirname, join, resolve } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const resourcesDir = resolve(__dirname, '..', 'src', 'resources')
+const piRoot = join(os.homedir(), '.pi')
+const piAgentDir = join(piRoot, 'agent')
+
+const copyDir = (name) => {
+  const src = join(resourcesDir, name)
+  const dest = join(piAgentDir, name)
+  if (!existsSync(src)) return false
+  mkdirSync(dest, { recursive: true })
+  cpSync(src, dest, { recursive: true, force: true })
+  return true
+}
+
+mkdirSync(piAgentDir, { recursive: true })
+
+const copied = []
+if (copyDir('extensions')) copied.push('extensions')
+if (copyDir('skills')) copied.push('skills')
+if (copyDir('agents')) copied.push('agents')
+
+const agentsMdSrc = join(resourcesDir, 'AGENTS.md')
+if (existsSync(agentsMdSrc)) {
+  writeFileSync(join(piAgentDir, 'AGENTS.md'), readFileSync(agentsMdSrc))
+  copied.push('AGENTS.md')
+}
+
+const workflowSrc = join(resourcesDir, 'GSD-WORKFLOW.md')
+if (existsSync(workflowSrc)) {
+  writeFileSync(join(piRoot, 'GSD-WORKFLOW.md'), readFileSync(workflowSrc))
+  copied.push('GSD-WORKFLOW.md')
+}
+
+process.stdout.write(
+  `Installed GSD resources for pi in ${piRoot}\n` +
+  `Copied: ${copied.join(', ')}\n` +
+  `Extensions are now available under ${join(piAgentDir, 'extensions')}\n`
+)

scripts/uninstall-pi-global.js

@@ -0,0 +1,66 @@
+#!/usr/bin/env node
+import { existsSync, readFileSync, readdirSync, rmSync, rmdirSync } from 'node:fs'
+import os from 'node:os'
+import { dirname, join, resolve } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const resourcesDir = resolve(__dirname, '..', 'src', 'resources')
+const piRoot = join(os.homedir(), '.pi')
+const piAgentDir = join(piRoot, 'agent')
+
+const removed = []
+const skipped = []
+
+function safeRemove(path, label) {
+  if (!existsSync(path)) return
+  rmSync(path, { recursive: true, force: true })
+  removed.push(label)
+}
+
+function removeResourceEntries(containerName) {
+  const srcDir = join(resourcesDir, containerName)
+  const destDir = join(piAgentDir, containerName)
+  if (!existsSync(srcDir) || !existsSync(destDir)) return
+
+  for (const entry of readdirSync(srcDir)) {
+    safeRemove(join(destDir, entry), `${containerName}/${entry}`)
+  }
+
+  try {
+    if (readdirSync(destDir).length === 0) {
+      rmdirSync(destDir)
+      removed.push(`${containerName}/`)
+    }
+  } catch {
+    // ignore non-empty or missing dirs
+  }
+}
+
+function removeIfContentMatches(targetPath, sourcePath, label) {
+  if (!existsSync(targetPath) || !existsSync(sourcePath)) return
+  try {
+    const target = readFileSync(targetPath, 'utf8')
+    const source = readFileSync(sourcePath, 'utf8')
+    if (target === source) {
+      rmSync(targetPath, { force: true })
+      removed.push(label)
+    } else {
+      skipped.push(`${label} (modified, left in place)`)
+    }
+  } catch {
+    skipped.push(`${label} (could not verify, left in place)`)
+  }
+}
+
+removeResourceEntries('extensions')
+removeResourceEntries('skills')
+removeResourceEntries('agents')
+removeIfContentMatches(join(piAgentDir, 'AGENTS.md'), join(resourcesDir, 'AGENTS.md'), 'agent/AGENTS.md')
+removeIfContentMatches(join(piRoot, 'GSD-WORKFLOW.md'), join(resourcesDir, 'GSD-WORKFLOW.md'), 'GSD-WORKFLOW.md')
+
+process.stdout.write(
+  `Removed GSD resources from ${piRoot}\n` +
+  `Removed: ${removed.length ? removed.join(', ') : '(nothing)'}\n` +
+  (skipped.length ? `Skipped: ${skipped.join(', ')}\n` : '')
+)