From 3c7866e261f404ad6d6d8b9b0de5072058796144 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Vy=C4=8D=C3=ADtal?=
 <tom.vycital@gmail.com>
Date: Sat, 16 May 2020 07:43:43 +0200
Subject: [PATCH] fix(rollup-conf): styles dir location (#155)

Due to recent breaking changes in Rollup PostCSS plugin that I
completely missed the styles dir has moved from the root to the bundle
files and is now 4 times in the packages (4 copies of the same thing).
This is not how it is documented and was never announced to the public
as a breaking change. This commit reverses it to the way it used to be
prior to the update. It also officially drops support for Rollup PostCSS
plugin (dev dep in our projects) version 2 since the way paths are
interpreted is different from the up to date version 3.
---
 package.json                                  |  2 +-
 .../generate-rollup-configuration/index.ts    | 35 ++++++++++++-------
 2 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/package.json b/package.json
index 7cd7cc415..19eae42e4 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "rollup-plugin-analyzer": "^3.2.0",
     "rollup-plugin-babel": "^4.3.0",
     "rollup-plugin-copy": "^3.3.0",
-    "rollup-plugin-postcss": "^2.0.0 || ^3.0.0",
+    "rollup-plugin-postcss": "^3.0.0",
     "rollup-plugin-terser": "^5.2.0",
     "rollup-plugin-typescript2": "^0.24.0 || ^0.26.0 || ^0.27.0"
   },
diff --git a/src/module/generate-rollup-configuration/index.ts b/src/module/generate-rollup-configuration/index.ts
index ad98fb56b..6c76f7837 100644
--- a/src/module/generate-rollup-configuration/index.ts
+++ b/src/module/generate-rollup-configuration/index.ts
@@ -529,12 +529,14 @@ export function generateRollupConfiguration(
 
   const commonOutputESM = {
     banner,
+    dir: ".",
     format: "esm",
     globals: processGlobals(globals),
     sourcemap: true
   };
   const commonOutputUMD = {
     banner,
+    dir: ".",
     exports: "named",
     extend: true,
     format: "umd",
@@ -555,8 +557,14 @@ export function generateRollupConfiguration(
       external: external.standalone,
       input: standaloneEntry,
       output: [
-        { ...commonOutputESM, file: `standalone/esm/${libraryFilename}.js` },
-        { ...commonOutputUMD, file: `standalone/umd/${libraryFilename}.js` }
+        {
+          ...commonOutputESM,
+          entryFileNames: `standalone/esm/${libraryFilename}.js`
+        },
+        {
+          ...commonOutputUMD,
+          entryFileNames: `standalone/umd/${libraryFilename}.js`
+        }
       ],
       plugins: getPlugins("standalone", {
         injectCSS,
@@ -570,9 +578,12 @@ export function generateRollupConfiguration(
       output: [
         {
           ...commonOutputESM,
-          file: `standalone/esm/${libraryFilename}.min.js`
+          entryFileNames: `standalone/esm/${libraryFilename}.min.js`
         },
-        { ...commonOutputUMD, file: `standalone/umd/${libraryFilename}.min.js` }
+        {
+          ...commonOutputUMD,
+          entryFileNames: `standalone/umd/${libraryFilename}.min.js`
+        }
       ],
       plugins: getPlugins("standalone", {
         injectCSS,
@@ -588,12 +599,12 @@ export function generateRollupConfiguration(
       output: [
         {
           ...commonOutputESM,
-          file: `peer/esm/${libraryFilename}.js`,
+          entryFileNames: `peer/esm/${libraryFilename}.js`,
           paths: getPaths("peer")
         },
         {
           ...commonOutputUMD,
-          file: `peer/umd/${libraryFilename}.js`,
+          entryFileNames: `peer/umd/${libraryFilename}.js`,
           paths: getPaths("peer")
         }
       ],
@@ -608,12 +619,12 @@ export function generateRollupConfiguration(
       output: [
         {
           ...commonOutputESM,
-          file: `peer/esm/${libraryFilename}.min.js`,
+          entryFileNames: `peer/esm/${libraryFilename}.min.js`,
           paths: getPaths("peer")
         },
         {
           ...commonOutputUMD,
-          file: `peer/umd/${libraryFilename}.min.js`,
+          entryFileNames: `peer/umd/${libraryFilename}.min.js`,
           paths: getPaths("peer")
         }
       ],
@@ -630,12 +641,12 @@ export function generateRollupConfiguration(
       output: [
         {
           ...commonOutputESM,
-          file: `esnext/esm/${libraryFilename}.js`,
+          entryFileNames: `esnext/esm/${libraryFilename}.js`,
           paths: getPaths("esnext")
         },
         {
           ...commonOutputUMD,
-          file: `esnext/umd/${libraryFilename}.js`,
+          entryFileNames: `esnext/umd/${libraryFilename}.js`,
           paths: getPaths("esnext")
         }
       ],
@@ -649,12 +660,12 @@ export function generateRollupConfiguration(
       output: [
         {
           ...commonOutputESM,
-          file: `esnext/esm/${libraryFilename}.min.js`,
+          entryFileNames: `esnext/esm/${libraryFilename}.min.js`,
           paths: getPaths("esnext")
         },
         {
           ...commonOutputUMD,
-          file: `esnext/umd/${libraryFilename}.min.js`,
+          entryFileNames: `esnext/umd/${libraryFilename}.min.js`,
           paths: getPaths("esnext")
         }
       ],