Merge pull request #64 from replicatedhq/ffi

Support CGO for calling analysis from other languages

Author: marccampbell

Makefile

@@ -5,6 +5,10 @@ export GO111MODULE=on
 
 all: test manager
 
+.PHONY: ffi
+ffi: fmt vet
+	go build -o bin/troubleshoot.so -buildmode=c-shared ffi/main.go
+
 # Run tests
 test: generate fmt vet manifests
 	go test ./pkg/... ./cmd/... -coverprofile cover.out

deploy/.goreleaser.snapshot.yml

@@ -4,6 +4,18 @@ release:
     owner: replicatedhq
     name: troubleshoot
 builds:
+  - id: so
+    goos:
+      - linux
+    goarch:
+      - amd64
+    env:
+      - CGO_ENABLED=1
+      - GO111MODULE=on
+    main: ffi/main.go
+    flags: -buildmode=c-shared
+    binary: troubleshoot.so
+    hooks: {}
   - id: collector
     goos:
       - linux
@@ -73,6 +85,10 @@ builds:
     binary: manager
     hooks: {}
 archives:
+  - id: so
+    builds:
+      - so
+    format: tar.gz
   - id: tar
     format: tar.gz
     name_template: '{{ .Binary }}_{{.Version}}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{.Arm }}{{ end }}-alpha'

deploy/.goreleaser.yml

@@ -4,6 +4,18 @@ release:
     owner: replicatedhq
     name: troubleshoot
 builds:
+  - id: so
+    goos:
+      - linux
+    goarch:
+      - amd64
+    env:
+      - CGO_ENABLED=1
+      - GO111MODULE=on
+    main: ffi/main.go
+    flags: -buildmode=c-shared
+    binary: troubleshoot.so
+    hooks: {}
   - id: collector
     goos:
       - linux
@@ -73,6 +85,10 @@ builds:
     binary: manager
     hooks: {}
 archives:
+  - id: so
+    builds:
+      - so
+    format: tar.gz
   - id: preflight
     builds:
       - preflight

ffi/main.go

@@ -0,0 +1,54 @@
+package main
+
+import "C"
+
+import (
+	"fmt"
+	"context"
+	"encoding/json"
+	
+	"gopkg.in/yaml.v2"
+	analyzer "github.com/replicatedhq/troubleshoot/pkg/analyze"
+	"github.com/replicatedhq/troubleshoot/pkg/logger"
+	"github.com/replicatedhq/troubleshoot/pkg/convert"
+
+)
+
+//export Analyze
+func Analyze(bundleURL string, outputFormat string, compatibility string) *C.char { 
+	logger.SetQuiet(true)
+
+	result, err := analyzer.DownloadAndAnalyze(context.TODO(), bundleURL)
+	if err != nil {
+		fmt.Printf("error downloading and analyzing: %s\n", err.Error())
+		return C.CString("")
+	}
+
+	var data interface{}
+	switch compatibility {
+	case "support-bundle":
+		data = convert.FromAnalyzerResult(result)
+	default:
+		data = result
+	}
+
+	var formatted []byte
+	switch outputFormat {
+	case "json":
+		formatted, err = json.MarshalIndent(data, "", "    ")
+	case "", "yaml":
+		formatted, err = yaml.Marshal(data)
+	default:
+		fmt.Printf("unknown output format: %s\n", outputFormat)
+		return C.CString("")
+	}
+
+	if err != nil {
+		fmt.Printf("error formatting output: %#v\n", err)
+		return C.CString("")
+	}
+
+	return C.CString(string(formatted))
+}
+
+func main() {}

go.mod

@@ -3,39 +3,21 @@ module github.com/replicatedhq/troubleshoot
 go 1.12
 
 require (
-	github.com/Masterminds/goutils v1.1.0 // indirect
-	github.com/Masterminds/semver v1.4.2 // indirect
-	github.com/Masterminds/sprig v2.20.0+incompatible // indirect
 	github.com/ahmetalpbalkan/go-cursor v0.0.0-20131010032410-8136607ea412
-	github.com/andrewchambers/go-jqpipe v0.0.0-20180509223707-2d54cef8cd94 // indirect
 	github.com/blang/semver v3.5.1+incompatible
-	github.com/docker/distribution v2.7.1+incompatible // indirect
-	github.com/docker/docker v1.13.1 // indirect
-	github.com/docker/go-connections v0.4.0 // indirect
-	github.com/docker/go-units v0.4.0 // indirect
-	github.com/docker/spdystream v0.0.0-20181023171402-6480d4af844c // indirect
-	github.com/dsnet/compress v0.0.1 // indirect
 	github.com/fatih/color v1.7.0
 	github.com/gin-gonic/gin v1.4.0
 	github.com/gizak/termui/v3 v3.1.0
-	github.com/golang/snappy v0.0.1 // indirect
-	github.com/hashicorp/go-getter v1.3.0
+	github.com/hashicorp/go-getter v1.3.1-0.20190627223108-da0323b9545e
 	github.com/hashicorp/go-multierror v1.0.0
-	github.com/huandu/xstrings v1.2.0 // indirect
-	github.com/manifoldco/promptui v0.3.2 // indirect
 	github.com/mholt/archiver v3.1.1+incompatible
-	github.com/nwaples/rardecode v1.0.0 // indirect
 	github.com/onsi/gomega v1.5.0
-	github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
-	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
-	github.com/pierrec/lz4 v2.0.5+incompatible // indirect
 	github.com/pkg/errors v0.8.1
-	github.com/spf13/cobra v0.0.4
+	github.com/replicatedhq/kots v0.2.0 // indirect
+	github.com/spf13/cobra v0.0.5
 	github.com/spf13/viper v1.4.0
 	github.com/stretchr/testify v1.3.0
 	github.com/tj/go-spin v1.1.0
-	github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 // indirect
-	github.com/xo/dburl v0.0.0-20190203050942-98997a05b24f // indirect
 	golang.org/x/net v0.0.0-20190812203447-cdfb69ac37fc
 	gopkg.in/yaml.v2 v2.2.2
 	k8s.io/api v0.0.0-20190409021203-6e4e0e4f393b
@@ -47,6 +29,4 @@ require (
 	k8s.io/kube-openapi v0.0.0-20190815110238-8ff09bc626d6 // indirect
 	k8s.io/utils v0.0.0-20190809000727-6c36bc71fc4a // indirect
 	sigs.k8s.io/controller-runtime v0.2.0-beta.2
-	sigs.k8s.io/controller-tools v0.2.0-beta.2 // indirect
-	sigs.k8s.io/kustomize v2.0.3+incompatible // indirect
 )