Migrate to Go module

README.md

@@ -5,35 +5,12 @@ burn is a CLI tool to convert performance profiles (perf_events, pprof, etc) to
 
 ## Getting Started
 
-Just download _burn_ from github using `go get` or the _pre-build_ binary and use it!
-
-### From go
-
-Make sure you have [golang](https://golang.org/) installed and `GOPATH` correctly set.
-
-```bash
-$ go get github.com/spiermar/burn
-$ burn $GOPATH/src/github.com/spiermar/burn/examples/out.perf
-```
-
-### From binary
-
-Binaries are being provided for both `linux` and `darwin`, in `amd64` arch.
-
-#### darwin/amd64
-
-```bash
-$ curl -L "https://dl.bintray.com/mspier/binaries/burn/1.0.1/darwin/amd64/burn" -o burn
-$ chmod +x burn
-$ ./burn <input_file>
-```
-
-#### linux/amd64
+Make sure you have [golang](https://go.dev) installed.
 
 ```bash
-$ curl -L "https://dl.bintray.com/mspier/binaries/burn/1.0.1/linux/amd64/burn" -o burn
-$ chmod +x burn
-$ ./burn <input_file>
+$ go install github.com/spiermar/burn@latest
+$ curl https://raw.githubusercontent.com/spiermar/burn/master/examples/out.perf >out.perf
+$ burn convert out.perf
 ```
 
 ## Options
@@ -74,11 +51,11 @@ Input and output examples can be found in the [examples](/examples) directory.
 
 ## Building from source
 
-Make sure you have [golang](https://golang.org/) installed and `GOPATH` correctly set.
+Make sure you have [golang](https://go.dev) installed.
 
 ```bash
-$ go get github.com/spiermar/burn
-$ cd $GOPATH/src/github.com/spiermar/burn
+$ git clone https://github.com/spiermar/burn
+$ cd burn
 $ go build
 $ ./burn examples/out.perf
 ```

cmd/convert.go

@@ -79,7 +79,7 @@ Examples:
 		if input == "folded" {
 			profile = convert.ParseFolded(file)
 		} else if input == "perf" {
-			profile = convert.ParsePerf(file)
+			profile = convert.ParsePerf(cmd.Context(), file)
 		} else {
 			panic("input type not supported: " + input)
 		}

convert/perf.go

@@ -16,6 +16,7 @@ package convert
 
 import (
 	"bufio"
+	"context"
 	"io"
 	"regexp"
 
@@ -24,7 +25,7 @@ import (
 )
 
 // ParsePerf parses a perf_events file format.
-func ParsePerf(r io.Reader) types.Profile {
+func ParsePerf(ctx context.Context, r io.Reader) types.Profile {
 	rootNode := types.Node{Name: "root", Value: 0, Children: make(map[string]*types.Node)}
 	profile := types.Profile{RootNode: rootNode, Stack: []string{}}
 
@@ -43,13 +44,13 @@ func ParsePerf(r io.Reader) types.Profile {
 			{Name: "finish", Src: []string{"closed"}, Dst: "end"},
 		},
 		fsm.Callbacks{
-			"enter_event": func(e *fsm.Event) {
+			"enter_event": func(_ context.Context, e *fsm.Event) {
 
 			},
-			"enter_open": func(e *fsm.Event) {
+			"enter_open": func(_ context.Context, e *fsm.Event) {
 
 			},
-			"enter_closed": func(e *fsm.Event) {
+			"enter_closed": func(_ context.Context, e *fsm.Event) {
 
 			},
 		},
@@ -67,12 +68,12 @@ func ParsePerf(r io.Reader) types.Profile {
 		switch current {
 		case "start":
 			if reCommentLine.MatchString(line) {
-				err := state.Event("read_comment")
+				err := state.Event(ctx, "read_comment")
 				if err != nil {
 					panic(err)
 				}
 			} else if matches := reEventRecordStartLine.FindStringSubmatch(line); matches != nil {
-				err := state.Event("open_stack")
+				err := state.Event(ctx, "open_stack")
 				if err != nil {
 					panic(err)
 				}
@@ -85,7 +86,7 @@ func ParsePerf(r io.Reader) types.Profile {
 			if reCommentLine.MatchString(line) {
 				// do nothing
 			} else if matches := reEventRecordStartLine.FindStringSubmatch(line); matches != nil {
-				err := state.Event("open_stack")
+				err := state.Event(ctx, "open_stack")
 				if err != nil {
 					panic(err)
 				}
@@ -96,13 +97,13 @@ func ParsePerf(r io.Reader) types.Profile {
 			}
 		case "event":
 			if matches := reStackLine.FindStringSubmatch(line); matches != nil {
-				err := state.Event("read_stack")
+				err := state.Event(ctx, "read_stack")
 				if err != nil {
 					panic(err)
 				}
 				profile.AddFrame(matches[2])
 			} else if reEndStackLine.MatchString(line) { // empty stack
-				err := state.Event("close_stack")
+				err := state.Event(ctx, "close_stack")
 				if err != nil {
 					panic(err)
 				}
@@ -114,7 +115,7 @@ func ParsePerf(r io.Reader) types.Profile {
 			if matches := reStackLine.FindStringSubmatch(line); matches != nil {
 				profile.AddFrame(matches[2])
 			} else if reEndStackLine.MatchString(line) {
-				err := state.Event("close_stack")
+				err := state.Event(ctx, "close_stack")
 				if err != nil {
 					panic(err)
 				}
@@ -124,14 +125,14 @@ func ParsePerf(r io.Reader) types.Profile {
 			}
 		case "closed":
 			if matches := reEventRecordStartLine.FindStringSubmatch(line); matches != nil {
-				err := state.Event("open_stack")
+				err := state.Event(ctx, "open_stack")
 				if err != nil {
 					panic(err)
 				}
 				profile.OpenStack()
 				profile.AddFrame(matches[1])
 			} else {
-				err := state.Event("finish")
+				err := state.Event(ctx, "finish")
 				if err != nil {
 					panic(err)
 				}

go.mod

@@ -0,0 +1,28 @@
+module github.com/spiermar/burn
+
+go 1.20
+
+require (
+	github.com/looplab/fsm v1.0.1
+	github.com/mitchellh/go-homedir v1.1.0
+	github.com/spf13/cobra v1.7.0
+	github.com/spf13/viper v1.15.0
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
+	github.com/spf13/afero v1.9.3 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.4.2 // indirect
+	golang.org/x/sys v0.3.0 // indirect
+	golang.org/x/text v0.5.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)