duckdb imports/exports WIP

packages/api/src/controllers/databaseConnections.js

@@ -125,6 +125,12 @@ module.exports = {
     socket.emit(`session-initialize-file-${jslid}`);
   },
 
+  // eval event handler
+  handle_runnerDone(conid, database, props) {
+    const { runid } = props;
+    socket.emit(`runner-done-${runid}`);
+  },
+
   async ensureOpened(conid, database) {
     const existing = this.opened.find(x => x.conid == conid && x.database == database);
     if (existing) return existing;
@@ -794,7 +800,8 @@ module.exports = {
   },
 
   executeSessionQuery_meta: true,
-  async executeSessionQuery({ sesid, conid, database, sql }) {
+  async executeSessionQuery({ sesid, conid, database, sql }, req) {
+    testConnectionPermission(conid, req);
     logger.info({ sesid, sql }, 'Processing query');
     sessions.dispatchMessage(sesid, 'Query execution started');
 
@@ -803,4 +810,13 @@ module.exports = {
 
     return { state: 'ok' };
   },
+
+  evalJsonScript_meta: true,
+  async evalJsonScript({ conid, database, script, runid }, req) {
+    testConnectionPermission(conid, req);
+    const opened = await this.ensureOpened(conid, database);
+
+    opened.subprocess.send({ msgtype: 'evalJsonScript', script, runid });
+    return { state: 'ok' };
+  },
 };

packages/api/src/controllers/runners.js

@@ -58,7 +58,7 @@ dbgateApi.initializeApiEnvironment();
 ${requirePluginsTemplate(extractShellApiPlugins(functionName, props))}
 require=null;
 async function run() {
-const reader=await ${extractShellApiFunctionName(functionName)}(${JSON.stringify(props)});
+const reader=await ${extractShellApiFunctionName(functionName, true)}(${JSON.stringify(props)});
 const writer=await dbgateApi.collectorWriter({runid: '${runid}'});
 await dbgateApi.copyStream(reader, writer);
 }

packages/api/src/proc/databaseConnectionProcess.js

@@ -9,14 +9,18 @@ const {
   dbNameLogCategory,
   extractErrorMessage,
   extractErrorLogData,
+  ScriptWriterEval,
+  SqlGenerator,
+  playJsonScriptWriter,
 } = require('dbgate-tools');
 const requireEngineDriver = require('../utility/requireEngineDriver');
 const { connectUtility } = require('../utility/connectUtility');
 const { handleProcessCommunication } = require('../utility/processComm');
-const { SqlGenerator } = require('dbgate-tools');
 const generateDeploySql = require('../shell/generateDeploySql');
 const { dumpSqlSelect } = require('dbgate-sqltree');
 const { allowExecuteCustomScript, handleQueryStream } = require('../utility/handleQueryStream');
+const dbgateApi = require('../shell');
+const requirePlugin = require('../shell/requirePlugin');
 
 const logger = getLogger('dbconnProcess');
 
@@ -406,6 +410,12 @@ async function handleExecuteSessionQuery({ sesid, sql }) {
   process.send({ msgtype: 'done', sesid });
 }
 
+async function handleEvalJsonScript({ script, runid }) {
+  const evalWriter = new ScriptWriterEval(dbgateApi, requirePlugin, dbhan);
+  await playJsonScriptWriter(script, evalWriter);
+  process.send({ msgtype: 'runnerDone', runid });
+}
+
 // async function handleRunCommand({ msgid, sql }) {
 //   await waitConnected();
 //   const driver = engines(storedConnection);
@@ -437,6 +447,7 @@ const messageHandlers = {
   exportKeys: handleExportKeys,
   schemaList: handleSchemaList,
   executeSessionQuery: handleExecuteSessionQuery,
+  evalJsonScript: handleEvalJsonScript,
   // runCommand: handleRunCommand,
 };
 

packages/tools/src/ScriptWriter.ts

@@ -1,4 +1,5 @@
 import _uniq from 'lodash/uniq';
+import _cloneDeepWith from 'lodash/cloneDeepWith';
 import { evalShellApiFunctionName, extractShellApiFunctionName, extractShellApiPlugins } from './packageTools';
 
 export interface ScriptWriterGeneric {
@@ -43,7 +44,7 @@ export class ScriptWriterJavaScript implements ScriptWriterGeneric {
   }
 
   assign(variableName, functionName, props) {
-    this.assignCore(variableName, extractShellApiFunctionName(functionName), props);
+    this.assignCore(variableName, extractShellApiFunctionName(functionName, true), props);
     this.packageNames.push(...extractShellApiPlugins(functionName, props));
   }
 
@@ -117,7 +118,7 @@ export class ScriptWriterJson implements ScriptWriterGeneric {
     this.commands.push({
       type: 'assign',
       variableName,
-      functionName: extractShellApiFunctionName(functionName),
+      functionName: extractShellApiFunctionName(functionName, false),
       props,
     });
 
@@ -192,11 +193,13 @@ export class ScriptWriterEval implements ScriptWriterGeneric {
   dbgateApi: any;
   requirePlugin: (name: string) => any;
   variables: { [name: string]: any } = {};
+  hostConnection: any;
 
-  constructor(dbgateApi, requirePlugin, varCount = '0') {
+  constructor(dbgateApi, requirePlugin, hostConnection, varCount = '0') {
     this.varCount = parseInt(varCount) || 0;
     this.dbgateApi = dbgateApi;
     this.requirePlugin = requirePlugin;
+    this.hostConnection = hostConnection;
   }
 
   allocVariable(prefix = 'var') {
@@ -210,7 +213,14 @@ export class ScriptWriterEval implements ScriptWriterGeneric {
 
   async assign(variableName, functionName, props) {
     const func = evalShellApiFunctionName(functionName, this.dbgateApi, this.requirePlugin);
-    this.variables[variableName] = await func(props);
+
+    this.variables[variableName] = await func(
+      _cloneDeepWith(props, node => {
+        if (node?.$hostConnection) {
+          return this.hostConnection;
+        }
+      })
+    );
   }
 
   assignValue(variableName, jsonValue) {
@@ -243,32 +253,32 @@ export class ScriptWriterEval implements ScriptWriterGeneric {
   }
 }
 
-export function playJsonScriptWriter(json, script) {
+export async function playJsonScriptWriter(json, script: ScriptWriterGeneric) {
   for (const cmd of json.commands) {
     switch (cmd.type) {
       case 'assign':
-        script.assignCore(cmd.variableName, cmd.functionName, cmd.props);
+        await script.assign(cmd.variableName, cmd.functionName, cmd.props);
         break;
       case 'assignValue':
-        script.assignValue(cmd.variableName, cmd.jsonValue);
+        await script.assignValue(cmd.variableName, cmd.jsonValue);
         break;
       case 'copyStream':
-        script.copyStream(cmd.sourceVar, cmd.targetVar, cmd.colmapVar, cmd.progressName);
+        await script.copyStream(cmd.sourceVar, cmd.targetVar, cmd.colmapVar, cmd.progressName);
         break;
       case 'endLine':
-        script.endLine();
+        await script.endLine();
         break;
       case 'comment':
-        script.comment(cmd.text);
+        await script.comment(cmd.text);
         break;
       case 'importDatabase':
-        script.importDatabase(cmd.options);
+        await script.importDatabase(cmd.options);
         break;
       case 'dataReplicator':
-        script.dataReplicator(cmd.options);
+        await script.dataReplicator(cmd.options);
         break;
       case 'zipDirectory':
-        script.zipDirectory(cmd.inputDirectory, cmd.outputFile);
+        await script.zipDirectory(cmd.inputDirectory, cmd.outputFile);
         break;
     }
   }

packages/tools/src/packageTools.ts

@@ -27,12 +27,15 @@ export function extractPackageName(name): string {
   return null;
 }
 
-export function extractShellApiFunctionName(functionName) {
+export function extractShellApiFunctionName(functionName, usePrefixForDbGateApi) {
   const nsMatch = functionName.match(/^([^@]+)@([^@]+)/);
   if (nsMatch) {
     return `${_camelCase(nsMatch[2])}.shellApi.${nsMatch[1]}`;
   }
-  return `dbgateApi.${functionName}`;
+  if (usePrefixForDbGateApi) {
+    return `dbgateApi.${functionName}`;
+  }
+  return functionName;
 }
 
 export function evalShellApiFunctionName(functionName, dbgateApi, requirePlugin) {

packages/web/src/impexp/createImpExpScript.ts

@@ -63,14 +63,22 @@ async function getConnection(extensions, storageType, conid, database) {
   return [null, null];
 }
 
-function getSourceExpr(extensions, sourceName, values, sourceConnection, sourceDriver) {
+function getSourceExpr(extensions, sourceName, values, sourceConnection, sourceDriver, hostConnection) {
   const { sourceStorageType } = values;
+  const connectionParams =
+    sourceDriver?.singleConnectionOnly && hostConnection
+      ? {
+          systemConnection: { $hostConnection: true },
+        }
+      : {
+          connection: sourceConnection,
+        };
   if (sourceStorageType == 'database') {
     const fullName = { schemaName: values.sourceSchemaName, pureName: sourceName };
     return [
       'tableReader',
       {
-        connection: sourceConnection,
+        ...connectionParams,
         ...extractDriverApiParameters(values, 'source', sourceDriver),
         ...fullName,
       },
@@ -80,7 +88,7 @@ function getSourceExpr(extensions, sourceName, values, sourceConnection, sourceD
     return [
       'queryReader',
       {
-        connection: sourceConnection,
+        ...connectionParams,
         ...extractDriverApiParameters(values, 'source', sourceDriver),
         queryType: values.sourceQueryType,
         query: values.sourceQueryType == 'json' ? JSON.parse(values.sourceQuery) : values.sourceQuery,
@@ -145,8 +153,16 @@ function getFlagsFroAction(action) {
   };
 }
 
-function getTargetExpr(extensions, sourceName, values, targetConnection, targetDriver) {
+function getTargetExpr(extensions, sourceName, values, targetConnection, targetDriver, hostConnection) {
   const { targetStorageType } = values;
+  const connectionParams =
+    targetDriver?.singleConnectionOnly && hostConnection
+      ? {
+          systemConnection: { $hostConnection: true },
+        }
+      : {
+          connection: targetConnection,
+        };
   const format = findFileFormat(extensions, targetStorageType);
   if (format && format.writerFunc) {
     const outputParams = format.getOutputParams && format.getOutputParams(sourceName, values);
@@ -166,7 +182,7 @@ function getTargetExpr(extensions, sourceName, values, targetConnection, targetD
     return [
       'tableWriter',
       {
-        connection: targetConnection,
+        ...connectionParams,
         schemaName: values.targetSchemaName,
         pureName: getTargetName(extensions, sourceName, values),
         ...extractDriverApiParameters(values, 'target', targetDriver),
@@ -203,7 +219,7 @@ export function normalizeExportColumnMap(colmap) {
   return null;
 }
 
-export default async function createImpExpScript(extensions, values, format = undefined) {
+export default async function createImpExpScript(extensions, values, format = undefined, detectHostConnection = false) {
   const config = getCurrentConfig();
   let script: ScriptWriterGeneric = new ScriptWriterJson(values.startVariableIndex || 0);
   if (format == 'script' && config.allowShellScripting) {
@@ -223,15 +239,39 @@ export default async function createImpExpScript(extensions, values, format = un
     values.targetDatabaseName
   );
 
+  let hostConnection = null;
+  if (detectHostConnection) {
+    // @ts-ignore
+    if (sourceDriver?.singleConnectionOnly) {
+      hostConnection = { conid: values.sourceConnectionId, database: values.sourceDatabaseName };
+    }
+    // @ts-ignore
+    if (targetDriver?.singleConnectionOnly) {
+      if (
+        hostConnection &&
+        (hostConnection.conid != values.targetConnectionId || hostConnection.database != values.targetDatabaseName)
+      ) {
+        throw new Error('Cannot use two different single-connections in the same script');
+      }
+      hostConnection = { conid: values.targetConnectionId, database: values.targetDatabaseName };
+    }
+  }
+
   const sourceList = getAsArray(values.sourceList);
   for (const sourceName of sourceList) {
     const sourceVar = script.allocVariable();
-    // @ts-ignore
+    script.assign(
-    script.assign(sourceVar, ...getSourceExpr(extensions, sourceName, values, sourceConnection, sourceDriver));
+      sourceVar,
+      // @ts-ignore
+      ...getSourceExpr(extensions, sourceName, values, sourceConnection, sourceDriver, hostConnection)
+    );
 
     const targetVar = script.allocVariable();
-    // @ts-ignore
+    script.assign(
-    script.assign(targetVar, ...getTargetExpr(extensions, sourceName, values, targetConnection, targetDriver));
+      targetVar,
+      // @ts-ignore
+      ...getTargetExpr(extensions, sourceName, values, targetConnection, targetDriver, hostConnection)
+    );
 
     const colmap = normalizeExportColumnMap(values[`columns_${sourceName}`]);
 
@@ -251,7 +291,11 @@ export default async function createImpExpScript(extensions, values, format = un
     script.zipDirectory('.', values.createZipFileInArchive ? 'archive:' + zipFileName : zipFileName);
   }
 
-  return script.getScript(values.schedule);
+  const res = script.getScript(values.schedule);
+  if (format == 'json') {
+    res.hostConnection = hostConnection;
+  }
+  return res;
 }
 
 export function getActionOptions(extensions, source, values, targetDbinfo) {
@@ -289,7 +333,7 @@ export async function createPreviewReader(extensions, values, sourceName) {
     values.sourceConnectionId,
     values.sourceDatabaseName
   );
-  const [functionName, props] = getSourceExpr(extensions, sourceName, values, sourceConnection, sourceDriver);
+  const [functionName, props] = getSourceExpr(extensions, sourceName, values, sourceConnection, sourceDriver, null);
   return {
     functionName,
     props: {

packages/web/src/tabs/ImportExportTab.svelte

@@ -50,6 +50,8 @@
   import { registerFileCommands } from '../commands/stdCommands';
   import ToolStripCommandButton from '../buttons/ToolStripCommandButton.svelte';
   import ToolStripSaveButton from '../buttons/ToolStripSaveButton.svelte';
+  import uuidv1 from 'uuid/v1';
+  import { tick } from 'svelte';
 
   let busy = false;
   let executeNumber = 0;
@@ -183,12 +185,24 @@
     progressHolder = {};
     const values = $formValues as any;
     busy = true;
-    const script = await createImpExpScript($extensions, values, 'json');
+    const script = await createImpExpScript($extensions, values, 'json', true);
     executeNumber += 1;
-    let runid = runnerId;
+
-    const resp = await apiCall('runners/start', { script });
+    if (script.hostConnection) {
-    runid = resp.runid;
+      runnerId = uuidv1();
-    runnerId = runid;
+      await tick();
+      await apiCall('database-connections/eval-json-script', {
+        runid: runnerId,
+        conid: script.hostConnection.conid,
+        database: script.hostConnection.database,
+        script,
+      });
+    } else {
+      let runid = runnerId;
+      const resp = await apiCall('runners/start', { script });
+      runid = resp.runid;
+      runnerId = runid;
+    }
 
     if (values.targetStorageType == 'archive') {
       refreshArchiveFolderRef.set(values.targetArchiveFolder);