feat: introduce overlay support (migration from https://github.com/speakeasy-api/openapi-overlay)

Author: TristanSpeakEasy

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
     name: Lint and Format Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: Install mise
         uses: jdx/mise-action@v2
@@ -45,7 +45,7 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: Install mise
         uses: jdx/mise-action@v2

.github/workflows/commits.yml

@@ -13,8 +13,8 @@ jobs:
     name: Conventional Commits
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - uses: webiny/[email protected]
-      - uses: amannn/action-semantic-pull-request@v6.0.1
+      - uses: amannn/action-semantic-pull-request@v5.5.3
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.golangci.yaml

@@ -30,6 +30,7 @@ linters:
     - misspell
     - musttag
     - nilerr
+    - nilnesserr
     - nolintlint
     - paralleltest
     - perfsprint

README.md

@@ -22,35 +22,14 @@
 
 </p>
   <p align="center">
-    <!-- Badges -->
-    <!-- OpenAPI Hub Badge -->
     <a href="https://www.speakeasy.com/openapi"><img src="https://custom-icon-badges.demolab.com/badge/-OpenAPI%20Hub-212015?style=for-the-badge&logoColor=FBE331&logo=speakeasy&labelColor=545454" /></a>
-    <!-- OpenAPI Support Badge -->
-    <a href="https://www.speakeasy.com/openapi"><img alt="OpenAPI Support" src="https://img.shields.io/badge/OpenAPI-3.0%20%7C%203.1-85EA2D.svg?style=for-the-badge&logo=openapiinitiative"></a>
-    <!-- Arazzo Support Badge -->
-    <img alt="Arazzo Support" src="https://img.shields.io/badge/Arazzo-1.0-purple.svg?style=for-the-badge">
-    <a href="https://pkg.go.dev/github.com/speakeasy-api/openapi?tab=doc"><img alt="Go Doc" src="https://img.shields.io/badge/godoc-reference-blue.svg?style=for-the-badge"></a>
-    <!-- Line Break --><br/>
-    <!-- Release Version Badge -->
+    <a href="https://speakeasy.com/"><img src="https://custom-icon-badges.demolab.com/badge/-Built%20By%20Speakeasy-212015?style=for-the-badge&logoColor=FBE331&logo=speakeasy&labelColor=545454" /></a>
     <a href="https://github.com/speakeasy-api/openapi/releases/latest"><img alt="Release" src="https://img.shields.io/github/release/speakeasy-api/openapi.svg?style=for-the-badge"></a>
-    <!-- Go Report Card Badge -->
+    <a href="https://pkg.go.dev/github.com/speakeasy-api/openapi?tab=doc"><img alt="Go Doc" src="https://img.shields.io/badge/godoc-reference-blue.svg?style=for-the-badge"></a>
+   <br />
+    <a href="https://github.com/speakeasy-api/openapi/actions/workflows/test.yaml"><img alt="GitHub Action: Test" src="https://img.shields.io/github/actions/workflow/status/speakeasy-api/openapi/test.yaml?style=for-the-badge"></a>
     <a href="https://goreportcard.com/report/github.com/speakeasy-api/openapi"><img alt="Go Report Card" src="https://goreportcard.com/badge/github.com/speakeasy-api/openapi?style=for-the-badge"></a>
-    <!-- Security Badge -->
-    <a href="https://github.com/speakeasy-api/openapi/actions/workflows/ci.yaml"><img alt="Security" src="https://img.shields.io/badge/security-scanned-green.svg?style=for-the-badge&logo=security"></a>
-    <!-- CI Badge -->
-    <a href="https://github.com/speakeasy-api/openapi/actions/workflows/ci.yaml"><img alt="GitHub Action: CI" src="https://img.shields.io/github/actions/workflow/status/speakeasy-api/openapi/ci.yaml?style=for-the-badge"></a>
-    <!-- Line Break --><br/>
-    <!-- Go Version Badge -->
-    <a href="https://golang.org/"><img alt="Go Version" src="https://img.shields.io/badge/go-1.24.3+-00ADD8.svg?style=for-the-badge&logo=go"></a>
-    <!-- Platform Support Badge -->
-    <img alt="Platform Support" src="https://img.shields.io/badge/platform-linux%20%7C%20macos%20%7C%20windows-lightgrey.svg?style=for-the-badge">
-    <!-- Stars Badge -->
-    <a href="https://github.com/speakeasy-api/openapi/stargazers"><img alt="GitHub stars" src="https://img.shields.io/github/stars/speakeasy-api/openapi.svg?style=for-the-badge&logo=github"></a>
-    <!-- Line Break --><br/>
-    <!-- Built By Speakeasy Badge -->
-    <a href="https://speakeasy.com/"><img src="https://custom-icon-badges.demolab.com/badge/-Built%20By%20Speakeasy-212015?style=for-the-badge&logoColor=FBE331&logo=speakeasy&labelColor=545454" /></a>
-    <!-- License Badge -->
-    <a href="/LICENSE"><img alt="Software License" src="https://img.shields.io/badge/license-MIT-blue.svg?style=for-the-badge"></a>    
+    <a href="/LICENSE"><img alt="Software License" src="https://img.shields.io/badge/license-MIT-blue.svg?style=for-the-badge"></a>
   </p>
 </p>
 

cmd/update-examples/main.go

@@ -38,8 +38,8 @@ func main() {
 func updateExamples() error {
 	fmt.Println("🔄 Updating examples in README files...")
 
-	// Process both packages
-	packages := []string{"openapi", "arazzo"}
+	// Process all packages
+	packages := []string{"openapi", "arazzo", "overlay"}
 
 	for _, pkg := range packages {
 		if err := processPackage(pkg); err != nil {

go.mod

@@ -5,14 +5,19 @@ go 1.24.3
 require (
 	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2
 	github.com/speakeasy-api/jsonpath v0.6.2
+	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.10.0
+	github.com/vmware-labs/yaml-jsonpath v0.3.2
 	golang.org/x/sync v0.16.0
 	golang.org/x/text v0.28.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/dprotaso/go-yit v0.0.0-20191028211022-135eb7262960 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 )

go.sum

@@ -1,26 +1,73 @@
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