fix some docker only issues

README.md

@@ -158,3 +158,6 @@ docker run -it --rm \
   - The `<input-directory>` line can be omitted to not set `--input` or when the config is set by `--input "{...}"` in the `<parameters>`
 - `<parameters>` are additional options; see `docker run -it --rm ghcr.io/webis-de/scriptor:latest --help`
 
+**Chaining**
+[Chaining](#chaining) can also be used without NodeJS. However, the Docker container does exit after a single run (by design). Use the same command to continue the chain.
+

bin/entrypoint.js

@@ -14,11 +14,12 @@ const log = require('../lib/log.js');
 
 const dockerEntrypoint = true;
 const options = cli.parse(dockerEntrypoint);
+log.info({ options: options }, "entrypoint");
 
 try {
   const scriptDirectory = cli.getScriptDirectory(options);
-  const inputDirectory = cli.getInputDirectory(options, dockerEntrypoint);
   const outputDirectory = cli.getOutputDirectory(options);
+  const inputDirectory = cli.getInputDirectory(options, dockerEntrypoint);
   const runOptions = cli.getRunOptions(options);
 
   scripts

lib/cli.js

@@ -1,5 +1,6 @@
 // Static command line interface functions
 
+const chmodr = require('chmodr');
 const commander = require('commander');
 const fs = require("fs-extra");
 const os = require("os");
@@ -361,20 +362,21 @@ const getOutputDirectory = function(options) {
     outputDirectory = chain.getChainOutputDirectory(chainName, outputDirectory);
   }
 
-  if (options.overwriteOutput) {
-    fs.rmSync(outputDirectory, { recursive: true, force: true });
-    fs.mkdirSync(outputDirectory, { recursive: true });
-  } else {
-    fs.mkdirSync(outputDirectory, { recursive: true });
-    if (!fs.statSync(outputDirectory).isDirectory()) {
-      throw new Error(
-        "output directory '" + outputDirectory + "' is not a directory.");
-    }
-    if (fs.readdirSync(outputDirectory).length > 1) { // may contain log file
-      throw new Error(
-        "output directory '" + outputDirectory + "' is not empty.");
+  if (options.overwriteOutput && fs.existsSync(outputDirectory)) {
+    chmodr.sync(outputDirectory, 0o666);
+    for (const child of fs.readdirSync(outputDirectory)) {
+      fs.rmSync(path.join(outputDirectory, child), { recursive: true, force: true });
     }
   }
+  fs.mkdirSync(outputDirectory, { recursive: true });
+  if (!fs.statSync(outputDirectory).isDirectory()) {
+    throw new Error(
+      "output directory '" + outputDirectory + "' is not a directory.");
+  }
+  if (fs.readdirSync(outputDirectory).length > 1) { // may contain log file
+    throw new Error(
+      "output directory '" + outputDirectory + "' is not empty.");
+  }
   return outputDirectory;
 };
 module.exports.getOutputDirectory = getOutputDirectory;