Switch to specific release branches

Author: fgreinacher

CONTRIBUTING.md

@@ -11,12 +11,13 @@ The base version represents the MAJOR and MINOR parts of [SemVer](https://semver
 ## Branches / tags
 
 * `master` contains the latest sources - this is where we develop.
-* `release` contains the sources for the latest version on `nuget.org` - this is where we deploy from.
+* `release/v*` contains the sources for the respective version on `nuget.org` - this is where we deploy from.
 * All versions on `nuget.org` have a matching GitHub release/tag
 
 ### Release workflow
 
-1. Create a [PR from `master` to `release`](https://github.com/System-IO-Abstractions/System.IO.Abstractions/compare/release...master?expand=1) and wait for CI to finish. 
+1. Check out latest master branch
+1. Call `nbgv prepare-release` (you need [the NBGV CLI tool](https://github.com/AArnott/Nerdbank.GitVersioning/blob/master/doc/nbgv-cli.md))
+1. Push the newly created branch
 1. Inspect CI run (test results, version number)
-1. Merge PR and wait for deployment
 1. Inspect newly created package versions on NuGet.org and newly created GitHub release

appveyor.yml

@@ -48,7 +48,7 @@ for:
     skip_symbols: false
     artifact: /.*\.nupkg/
     on:
-      branch: release
+      branch: /release/v.*$/
 
   - provider: GitHub
     tag: v$(appveyor_build_version)
@@ -57,4 +57,4 @@ for:
     auth_token:
       secure: Rrk1zp93EpCyxec/GXKnRnJjX7vU+ClNZEBnxbM+1j6l+C56qSV7B/fUrVsJuZYV
     on: 
-      branch: release
+      branch: /release/v.*$/

version.json

@@ -1,12 +1,17 @@
 {
     "$schema": "https://raw.githubusercontent.com/AArnott/Nerdbank.GitVersioning/master/src/NerdBank.GitVersioning/version.schema.json",
-    "version": "4.0",
+    "version": "4.0-alpha",
     "assemblyVersion": {
       "precision": "major"
     },
     "publicReleaseRefSpec": [
-      "^refs/heads/release$"
+      "^refs/heads/release/v.*$"
     ],
+    "release": {
+      "branchName" : "release/v{version}",
+      "versionIncrement" : "minor",
+      "firstUnstableTag" : "alpha"
+    },
     "cloudBuild": {
       "buildNumber": {
         "enabled": true,