fix(@angular/cli): display post migration message when updating from previous major version

alan-agius4 · dgp1130 · commit cc913e219572 · 2020-03-23T14:21:58.000-07:00
Fixes #17256 (cherry picked from commit 4f50aa0)
diff --git a/packages/angular/cli/commands/update-impl.ts b/packages/angular/cli/commands/update-impl.ts
@@ -525,6 +525,8 @@ export class UpdateCommand extends Command<UpdateCommandSchema> {
       if (success) {
         if (
           packageName === '@angular/core'
+          && options.from
+          && +options.from.split('.')[0] < 9
           && (options.to || packageNode.package.version).split('.')[0] === '9'
         ) {
           this.logger.info(NG_VERSION_9_POST_MSG);
@@ -675,7 +677,7 @@ export class UpdateCommand extends Command<UpdateCommandSchema> {
         }
       }
 
-      if (migrations.some(m => m.package === '@angular/core' && m.to.split('.')[0] === '9')) {
+      if (migrations.some(m => m.package === '@angular/core' && m.to.split('.')[0] === '9' && +m.from.split('.')[0] < 9)) {
         this.logger.info(NG_VERSION_9_POST_MSG);
       }
     }

Original file line number	Diff line number	Diff line change
`@@ -525,6 +525,8 @@ export class UpdateCommand extends Command<UpdateCommandSchema> {`
`525`	`525`	`if (success) {`
`526`	`526`	`if (`
`527`	`527`	`packageName === '@angular/core'`
	`528`	`+ && options.from`
	`529`	`+ && +options.from.split('.')[0] < 9`
`528`	`530`	`&& (options.to \|\| packageNode.package.version).split('.')[0] === '9'`
`529`	`531`	`) {`
`530`	`532`	`this.logger.info(NG_VERSION_9_POST_MSG);`
`@@ -675,7 +677,7 @@ export class UpdateCommand extends Command<UpdateCommandSchema> {`
`675`	`677`	`}`
`676`	`678`	`}`
`677`	`679`
`678`		`- if (migrations.some(m => m.package === '@angular/core' && m.to.split('.')[0] === '9')) {`
	`680`	`+ if (migrations.some(m => m.package === '@angular/core' && m.to.split('.')[0] === '9' && +m.from.split('.')[0] < 9)) {`
`679`	`681`	`this.logger.info(NG_VERSION_9_POST_MSG);`
`680`	`682`	`}`
`681`	`683`	`}`