Add history feature

Author: bindung

Diff for: Makefile

@@ -12,6 +12,12 @@ build-ui:
 build-exe:
 	GOOS=windows go build -o bin/gptscript.exe -tags "${GO_TAGS}" .
 
+build-linux-amd64:
+	GOOS=linux GOARCH=amd64 go build -o bin/gptscript_linux_amd64 -tags "${GO_TAGS}" .
+
+build-linux-arm64:
+	GOOS=linux GOARCH=arm64 go build -o bin/gptscript_linux_arm64 -tags "${GO_TAGS}" .
+
 build:
 	CGO_ENABLED=0 go build -o bin/gptscript -tags "${GO_TAGS}" -ldflags "-s -w" .
 
@@ -21,6 +27,11 @@ tidy:
 test:
 	go test -v ./...
 
+cp: build-linux-amd64 build-linux-arm64
+	cp bin/gptscript_linux_amd64 ~/Workspace/streamlit-gptscript/gptscript/bin/gptscript
+	cp bin/gptscript_linux_amd64 ~/Workspace/streamlit-gptscript/gptscript/bin/gptscript_linux_amd64
+	cp bin/gptscript_linux_arm64 ~/Workspace/streamlit-gptscript/gptscript/bin/gptscript_linux_arm64
+
 GOLANGCI_LINT_VERSION ?= v1.56.1
 lint:
 	if ! command -v golangci-lint &> /dev/null; then \

Diff for: go.mod

@@ -47,12 +47,14 @@ require (
 	github.com/bodgit/plumbing v1.2.0 // indirect
 	github.com/bodgit/sevenzip v1.3.0 // indirect
 	github.com/bodgit/windows v1.0.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/charmbracelet/glamour v0.7.0 // indirect
 	github.com/charmbracelet/lipgloss v0.11.0 // indirect
 	github.com/charmbracelet/x/ansi v0.1.1 // indirect
 	github.com/connesc/cipherio v0.2.1 // indirect
 	github.com/containerd/console v1.0.4 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/dlclark/regexp2 v1.4.0 // indirect
 	github.com/dsnet/compress v0.0.1 // indirect
 	github.com/go-openapi/jsonpointer v0.20.2 // indirect

Diff for: pkg/engine/engine.go

@@ -1,9 +1,12 @@
 package engine
 
 import (
+	"bufio"
 	"context"
 	"encoding/json"
 	"fmt"
+	"log/slog"
+	"os"
 	"strings"
 	"sync"
 
@@ -194,6 +197,36 @@ func (c *Context) WrappedContext() context.Context {
 	return context.WithValue(c.Ctx, engineContext{}, c)
 }
 
+func putHistory(messages []types.CompletionMessage) []types.CompletionMessage {
+	prevHistoryFile := strings.TrimSpace(os.Getenv("GPTSCRIPT_PREVIOUS_HISTORY_FILE"))
+
+	if prevHistoryFile == "" {
+		return messages
+	}
+	fp, err := os.Open(prevHistoryFile)
+	if err != nil {
+		slog.Error("Open Error", err)
+		return messages
+	}
+	defer fp.Close()
+
+	scanner := bufio.NewScanner(fp)
+
+	prevMessages := []types.CompletionMessage{}
+	for scanner.Scan() {
+		var message types.CompletionMessage
+		line := scanner.Text()
+		err := json.Unmarshal([]byte(line), &message)
+		if err != nil {
+			slog.Error("Unmarshal Error", err)
+			return messages
+		}
+		prevMessages = append(prevMessages, message)
+	}
+
+	return append(messages, prevMessages...)
+}
+
 func (e *Engine) Start(ctx Context, input string) (ret *Return, _ error) {
 	tool := ctx.Tool
 
@@ -256,6 +289,10 @@ func (e *Engine) Start(ctx Context, input string) (ret *Return, _ error) {
 		input = ""
 	}
 
+	if ctx.Parent == nil {
+		completion.Messages = putHistory(completion.Messages)
+	}
+
 	if input != "" {
 		completion.Messages = append(completion.Messages, types.CompletionMessage{
 			Role:    types.CompletionMessageRoleTypeUser,