add a publish script; prep to publish (#267)

* blast_repo fixes

auto-publish

* rev to 1.17.1

.github/workflows/publish.yaml

@@ -0,0 +1,14 @@
+# A CI configuration to auto-publish pub packages.
+
+name: Publish
+
+on:
+  pull_request:
+    branches: [ master ]
+  push:
+    tags: [ 'v[0-9]+.[0-9]+.[0-9]+*' ]
+
+jobs:
+  publish:
+    if: ${{ github.repository_owner == 'dart-lang' }}
+    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 1.17.1-dev
+## 1.17.1
 
 * Require Dart 2.18
 * Improve docs for `splitAfter` and `splitBefore`.

README.md

@@ -57,3 +57,8 @@ functions on an existing object.
 Please file feature requests and bugs at the [issue tracker][tracker].
 
 [tracker]: https://github.com/dart-lang/collection/issues
+
+## Publishing automation
+
+For information about our publishing automation and release process, see
+https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.

pubspec.yaml

@@ -1,5 +1,5 @@
 name: collection
-version: 1.17.1-dev
+version: 1.17.1
 description: Collections and utilities functions and classes related to collections.
 repository: https://github.com/dart-lang/collection