Add multi-platform build steps and plugin registration

- Updated GitHub Actions workflow to build for Linux, Windows, and macOS.
- Introduced `RegisterPlugin` function to dynamically register plugins.
- Modified `NewTrail` function to load all registered plugins dynamically.
- Added build tags to posix_plugin_unix.go for selective build on Linux and Darwin.
- Registered PosixPlugin during initialization.

Signed-off-by: Frederick F. Kautz IV <frederick@testifysec.com>

.github/workflows/go.yml

@@ -21,8 +21,14 @@ jobs:
       with:
         go-version: 1.19
 
-    - name: Build
-      run: go build -v ./...
+    - name: Build linux
+      run: GOOS=linux go build -v ./...
+
+    - name: Build windows
+      run: GOOS=windows go build -v ./...
+
+    - name: Build macos
+      run: GOOS=darwin go build -v ./...
 
     - name: Test
       run: go test -v ./...

go.sum

@@ -1,15 +1,25 @@
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/edwarnicke/gitoid v0.0.0-20220710194850-1be5bfda1f9d h1:4l+Uq5zFWSagXgGFaKRRVWJrnlzeathyagWgYUltCgY=
 github.com/edwarnicke/gitoid v0.0.0-20220710194850-1be5bfda1f9d/go.mod h1:WxWwA3EYuCQjlR5EBUX3uaTS8bh9BOa7BcqVREHQ0uQ=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/omnibor/omnibor-go v0.0.0-20230521145532-a77de61a16cd h1:25EpGVgctk6V3DUa1gqFHvjVbmdWqM+jBZAed7p/krQ=
 github.com/omnibor/omnibor-go v0.0.0-20230521145532-a77de61a16cd/go.mod h1:ArlQivzDQvZnFe8itjlA3ndPTXd9iWOgqzF31OyIEFQ=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
+github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -18,7 +28,10 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
 github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

omnitrail.go

@@ -5,6 +5,14 @@ import (
 	"sort"
 )
 
+type PluginInit func() Plugin
+
+var pluginMap = make(map[string]PluginInit)
+
+func RegisterPlugin(name string, initFn PluginInit) {
+	pluginMap[name] = initFn
+}
+
 func NewTrail(option ...Option) Factory {
 	o := &Options{}
 	for _, opt := range option {
@@ -15,9 +23,16 @@ func NewTrail(option ...Option) Factory {
 	}
 	allowList := []string{}
 	plugins := make([]Plugin, 0)
+	// Directory plugin depends on the File plugin
+	// We assume all other plugins depend on both the File and Directory plugins
 	plugins = append(plugins, NewFilePlugin())
 	plugins = append(plugins, NewDirectoryPlugin())
-	plugins = append(plugins, NewPosixPlugin())
+	// We load all other plugins here
+	for _, pluginInitFunc := range pluginMap {
+		plugins = append(plugins, pluginInitFunc())
+	}
+
+	fmt.Println(plugins)
 
 	factory := &factoryImpl{
 		Options: o,

omnitrail_test.go

@@ -85,6 +85,9 @@ func testAdd(t *testing.T, name string) error {
 		return err
 	}
 
+	a, _ := json.MarshalIndent(mapping.Envelope(), "", "  ")
+	fmt.Println(string(a))
+
 	// WARNING: these are only for generating new test cases easily
 	// file, err := json.MarshalIndent(mapping.Envelope(), "", "  ")
 	// os.WriteFile("./test/"+name+".json", file, 0644)
@@ -106,8 +109,13 @@ func testAdd(t *testing.T, name string) error {
 	shortestExpectedKey := getShortestKey(&expectedEnvelope)
 	shortestActualKey := getShortestKey(mapping.Envelope())
 
+	fmt.Println(shortestExpectedKey)
+	fmt.Println(shortestActualKey)
+
 	for oldKey, val := range expectedEnvelope.Mapping {
+		fmt.Println("old key: ", oldKey)
 		newKey := strings.Replace(oldKey, shortestExpectedKey, shortestActualKey, 1)
+		fmt.Println("new key: ", oldKey)
 		delete(expectedEnvelope.Mapping, oldKey)
 		expectedEnvelope.Mapping[newKey] = val
 	}

posix_plugin_unix.go

@@ -1,3 +1,5 @@
+//go:build linux || darwin
+
 package omnitrail
 
 import (
@@ -9,6 +11,10 @@ import (
 	"syscall"
 )
 
+func init() {
+	RegisterPlugin("posix", NewPosixPlugin)
+}
+
 type PosixPlugin struct {
 	params    map[string]*posixInfo
 	AllowList []string