feat(execution): add ExecutionController working with session

2025-12-10 19:34:34 +00:00 · 2021-10-14 07:31:46 +00:00
parent 37b6936cca
commit 8b2564120d
1 changed files with 92 additions and 0 deletions
--- a/src/controllers/Execution.ts
+++ b/src/controllers/Execution.ts
@@ -0,0 +1,92 @@
+import { getSessionController } from './'
+import { readFile, fileExists, createFile } from '@sasjs/utils'
+import path from 'path'
+import { configuration } from '../../package.json'
+import { promisify } from 'util'
+import { execFile } from 'child_process'
+import { Session } from '../types'
+const execFilePromise = promisify(execFile)
+
+export class ExecutionController {
+  async execute(
+    program = '',
+    autoExec?: string,
+    session?: Session,
+    vars?: any
+  ) {
+    if (program) {
+      if (!(await fileExists(program))) {
+        throw 'ExecutionController: SAS file does not exist.'
+      }
+
+      program = await readFile(program)
+
+      if (vars) {
+        Object.keys(vars).forEach(
+          (key: string) => (program = `%let ${key}=${vars[key]};\n${program}`)
+        )
+      }
+    }
+
+    const sessionController = getSessionController()
+
+    if (!session) {
+      session = await sessionController.getSession()
+      session.inUse = true
+    }
+
+    let log = path.join(session.path, 'log.log')
+
+    let webout = path.join(session.path, 'webout.txt')
+    await createFile(webout, '')
+
+    program = `filename _webout "${webout}";\n${program}`
+
+    const code = path.join(session.path, 'code.sas')
+    if (!(await fileExists(code))) {
+      await createFile(code, program)
+    }
+
+    let additionalArgs: string[] = []
+    if (autoExec) additionalArgs = ['-AUTOEXEC', autoExec]
+
+    const { stdout, stderr } = await execFilePromise(configuration.sasPath, [
+      '-SYSIN',
+      code,
+      '-LOG',
+      log,
+      '-WORK',
+      session.path,
+      ...additionalArgs,
+      process.platform === 'win32' ? '-nosplash' : ''
+    ]).catch((err) => ({ stderr: err, stdout: '' }))
+
+    if (await fileExists(log)) log = await readFile(log)
+    else log = ''
+
+    if (stderr) return Promise.reject({ error: stderr, log: log })
+
+    if (await fileExists(webout)) webout = await readFile(webout)
+    else webout = ''
+
+    const debug = Object.keys(vars).find(
+      (key: string) => key.toLowerCase() === '_debug'
+    )
+
+    if (debug && vars[debug] >= 131) {
+      webout = `<html><body>
+${webout}
+<div style="text-align:left">
+<hr /><h2>SAS Log</h2>
+<pre>${log}</pre>
+</div>
+</body></html>`
+    }
+
+    session.inUse = false
+
+    sessionController.deleteSession(session)
+
+    return Promise.resolve(webout)
+  }
+}