build: Update gitversion.yml

Update gitversion.yml, adapted from the Uno Platform project.

gitversion.yml

@@ -1,51 +1,65 @@
 assembly-versioning-scheme: MajorMinorPatch
-mode: ContinuousDeployment
+mode: Mainline
 
 branches:
   master:
     mode: ContinuousDeployment
     regex: master
     tag: dev
     increment: Minor
+    is-source-branch-for: ['beta', 'stable']
+
+  legacy:
+    mode: ContinuousDeployment
+    regex: legacy/.*
+    tag: dev
+    increment: Minor
+    source-branches: ['master']
+    is-source-branch-for: ['beta', 'stable']
 
   pull-request:
     regex: ^(pull|pull\-requests|pr)[/-]
     mode: ContinuousDeployment
-    tag: PullRequest
-    increment: Inherit
+    tag: 'PullRequest'
+    tag-number-pattern: '[/-](?<number>\d+)[-/]'
+    increment: Minor # use minor to avoid expensive commit search
+
+  beta:
+    mode: ContinuousDeployment
+    regex: ^release/beta/.*
+    tag: beta
+    increment: none
+    source-branches: ['master','legacy']
 
   stable:
-    regex: release/stable/.*
+    regex: ^release/stable/.*
     tag: ''
     increment: Patch
-    source-branches: ['master']
+    source-branches: ['master','beta','legacy']
     is-mainline: true
 
-  beta:
-    mode: ContinuousDeployment
-    regex: release/beta/.*
-    tag: 'beta'
-    increment: inherit
-    source-branches: ['master']
-
   dev:
     mode: ContinuousDeployment
-    regex: dev/.*?/(.*?)
+    regex: ^dev/.*?/(.*?)
     tag: dev.{BranchName}
-    source-branches: ['master', 'release', 'projects', 'feature']
-    increment: inherit
+    source-branches: ['master', 'legacy', 'stable', 'projects', 'feature']
+    increment: none
 
   projects:
     tag: proj-{BranchName}
-    regex: projects/(.*?)
-    source-branches: ['master']
-    increment: inherit
+    regex: ^projects/(.*?)
+    source-branches: ['master','legacy']
+    increment: none
 
   feature:
     tag: feature.{BranchName}
-    regex: feature/(.*?)
-    source-branches: ['master']
-    increment: inherit
+    regex: ^feature/(.*?)
+    source-branches: ['master','legacy']
+    increment: none
+
+  release:
+    # disable default release branch
+    regex: ignore
 
 ignore:
   sha: []