Add example go project and Action

.github/workflows/go-action.yml

@@ -0,0 +1,21 @@
+name: Go Action detection of dependencies
+on:
+  push
+# on:
+#   push:
+#     branches:
+#       - main
+jobs:
+  go-action-detection:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout Repository'
+        uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+      - name: Run snapshot action
+        uses: dsp-testing/go-snapshot-action@main
+        with:
+          go-mod-path: go-example/go.mod
+          go-build-target: go-example/cmd/octocat.go

README.md

@@ -5,7 +5,7 @@ An Action that creates a dependency submission using `go mod graph`.
 Optional inputs for the Action include: `detector-name`, `detector-url`, `detector-version`, and `metadata` - a JSON of max eight keys to provide with the snapshot.
 
 ### Example
-```
+```yaml
 name: Go Action detection of dependencies
 on:
   push:
@@ -27,6 +27,16 @@ jobs:
       - name: Run snapshot action
         uses: @dsp-testing/go-snapshot-action
         with:
+            # Required: Define the repo path to the go.mod file used by the
+            # build target
+            go-mod-path: go-example/go.mod
+            #
+            # Define the repo path of a build target (a file with a
+            # `main()` function) If not defined, this Aciton will collect all
+            # dependencies used by all build targets for the module, which may
+            # include Go dependencies used by tests and tooling.
+            go-build-target: go-example/cmd/octocat.go
+            #
             # All of the below have defaults, but can be overriden manually
             detector-name: go snapshot action
             detector-url: ${{ github.server_url }}/${{ github.repository }}

go-example/cmd/octocat.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"fmt"
+
+	"golang.org/x/example/stringutil"
+)
+
+func main() {
+	fmt.Println(stringutil.Reverse("reverof stacotcO"))
+}

go-example/go.mod

@@ -0,0 +1,5 @@
+module go-example
+
+go 1.18
+
+require golang.org/x/example v0.0.0-20220412213650-2e68773dfca0

go-example/go.sum

@@ -0,0 +1,23 @@
+github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/example v0.0.0-20220412213650-2e68773dfca0 h1:ygD+9PaH9IfzZUF131IxmiXGkxzuN/pphDjzh2LY8N8=
+golang.org/x/example v0.0.0-20220412213650-2e68773dfca0/go.mod h1:+yakPl5KR9J+ysfUNADYwEU5qeqjUO473wDktD4xMYw=
+golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20210112183307-1e6ecd4bf1b0/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

src/index.ts

@@ -25,14 +25,20 @@ const goListDependencies = `go list -deps -f '{{define "M"}}{{.Path}}@{{.Version
 // Enumerate directories
 async function detect () {
   // If provided, set the metadata provided from the action workflow input
-  const goModPath = core.getInput('goModPath')
+  const goModPath = path.normalize(core.getInput('go-mod-path'))
   if (path.basename(goModPath) !== 'go.mod' && fs.existsSync(goModPath)) {
     throw new Error(`${goModPath} is not a go.mod file or does not exist!`)
   }
   const goModDir = path.dirname(goModPath)
-  const goBuildTarget = core.getInput('goBuildTarget')
-  if (goBuildTarget !== 'all' && goBuildTarget !== '...' && fs.existsSync(path.join(goModDir, goBuildTarget))) {
-    throw new Error(`The build target '${goBuildTarget}' does not exist at ${path.join(goModDir, goBuildTarget)}`)
+
+  const goBuildTarget = path.normalize(core.getInput('go-build-target'))
+  if (goBuildTarget !== 'all' && goBuildTarget !== '...') {
+    if (!fs.existsSync(goBuildTarget)) {
+      throw new Error(`The build target '${goBuildTarget}' does not exist`)
+    }
+    if (goModDir !== "." && !goBuildTarget.startsWith(goModDir)) {
+      throw new Error(`The build target ${goBuildTarget} is not a sub-directory of ${goModDir}`)
+    }
   }
 
   const metadataInput = core.getInput('metadata')