Add migration guide to PostCSS 8 error

ai · ai · commit e867c794b5d6 · 2020-09-28T17:39:23.000-04:00
diff --git a/lib/processor.es6 b/lib/processor.es6
@@ -115,8 +115,9 @@ class Processor {
       if (i.postcss === true) {
         let plugin = i()
         throw new Error(
-          'PostCSS plugin ' + plugin.postcssPlugin +
-          ' requires PostCSS 8. Update PostCSS or downgrade this plugin.'
+          'PostCSS plugin ' + plugin.postcssPlugin + ' requires PostCSS 8.\n' +
+          'Migration guide for end-users:\n' +
+          'https://github.com/postcss/postcss/wiki/PostCSS-8-for-end-users'
         )
       }
 
@@ -136,8 +137,9 @@ class Processor {
         }
       } else if (typeof i === 'object' && i.postcssPlugin) {
         throw new Error(
-          'PostCSS plugin ' + i.postcssPlugin +
-          ' requires PostCSS 8. Update PostCSS or downgrade this plugin.'
+          'PostCSS plugin ' + i.postcssPlugin + ' requires PostCSS 8.\n' +
+          'Migration guide for end-users:\n' +
+          'https://github.com/postcss/postcss/wiki/PostCSS-8-for-end-users'
         )
       } else {
         throw new Error(i + ' is not a PostCSS plugin')

Original file line number	Diff line number	Diff line change
`@@ -115,8 +115,9 @@ class Processor {`
`115`	`115`	`if (i.postcss === true) {`
`116`	`116`	`let plugin = i()`
`117`	`117`	`throw new Error(`
`118`		`- 'PostCSS plugin ' + plugin.postcssPlugin +`
`119`		`- ' requires PostCSS 8. Update PostCSS or downgrade this plugin.'`
	`118`	`+ 'PostCSS plugin ' + plugin.postcssPlugin + ' requires PostCSS 8.\n' +`
	`119`	`+ 'Migration guide for end-users:\n' +`
	`120`	`+ 'https://github.com/postcss/postcss/wiki/PostCSS-8-for-end-users'`
`120`	`121`	`)`
`121`	`122`	`}`
`122`	`123`
`@@ -136,8 +137,9 @@ class Processor {`
`136`	`137`	`}`
`137`	`138`	`} else if (typeof i === 'object' && i.postcssPlugin) {`
`138`	`139`	`throw new Error(`
`139`		`- 'PostCSS plugin ' + i.postcssPlugin +`
`140`		`- ' requires PostCSS 8. Update PostCSS or downgrade this plugin.'`
	`140`	`+ 'PostCSS plugin ' + i.postcssPlugin + ' requires PostCSS 8.\n' +`
	`141`	`+ 'Migration guide for end-users:\n' +`
	`142`	`+ 'https://github.com/postcss/postcss/wiki/PostCSS-8-for-end-users'`
`141`	`143`	`)`
`142`	`144`	`} else {`
`143`	`145`	`throw new Error(i + ' is not a PostCSS plugin')`