refactor: split entrypoint and main

Author: Simon Renoult

src/index.ts

@@ -1,35 +1,5 @@
 #!/usr/bin/env node
 
-import cli from "./cli";
-import { prepareStdout } from "./services/prepare-stdout";
-import {
-  ComplexityPerFile,
-  computeComplexityPerFile
-} from "./services/compute-complexity-per-file";
-import {
-  CommitCountPerFile,
-  countCommitsPerFile
-} from "./services/count-commits-per-file";
+import computeComplexity from "./services/compute-complexity";
 
-main();
-
-export default async function main(): Promise<void> {
-  if (!cli.args || !cli.args.length) {
-    cli.help();
-    process.exit(0);
-  }
-
-  const [directory] = cli.args;
-  const options = { firstParent: cli.firstParent, since: cli.since };
-
-  const commitCountPerFiles: CommitCountPerFile[] = await countCommitsPerFile(
-    directory,
-    options
-  );
-
-  const complexityPerFiles: ComplexityPerFile[] = await computeComplexityPerFile(
-    commitCountPerFiles
-  );
-
-  prepareStdout(complexityPerFiles, cli).forEach(line => console.log(line));
-}
+computeComplexity();

src/services/compute-complexity.ts

@@ -0,0 +1,33 @@
+#!/usr/bin/env node
+
+import cli from "../cli";
+import { prepareStdout } from "./prepare-stdout";
+import {
+  ComplexityPerFile,
+  computeComplexityPerFile
+} from "./compute-complexity-per-file";
+import {
+  CommitCountPerFile,
+  countCommitsPerFile
+} from "./count-commits-per-file";
+
+export default async function computeComplexity(): Promise<void> {
+  if (!cli.args || !cli.args.length) {
+    cli.help();
+    process.exit(0);
+  }
+
+  const [directory] = cli.args;
+  const options = { firstParent: cli.firstParent, since: cli.since };
+
+  const commitCountPerFiles: CommitCountPerFile[] = await countCommitsPerFile(
+    directory,
+    options
+  );
+
+  const complexityPerFiles: ComplexityPerFile[] = await computeComplexityPerFile(
+    commitCountPerFiles
+  );
+
+  prepareStdout(complexityPerFiles, cli).forEach(line => console.log(line));
+}