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138 lines
4.1 KiB
Go
138 lines
4.1 KiB
Go
/*
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* Copyright 2025 CloudWeGo Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package tools
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import (
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"context"
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"fmt"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"github.com/cloudwego/eino-examples/adk/multiagent/deep/utils"
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"github.com/cloudwego/eino-ext/components/tool/commandline"
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"github.com/cloudwego/eino/components/tool"
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"github.com/cloudwego/eino/schema"
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jsoniter "github.com/json-iterator/go"
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"github.com/cloudwego/eino-examples/adk/multiagent/deep/params"
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)
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var toolPythonRunnerInfo = &schema.ToolInfo{
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Name: "python_runner",
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Desc: `Write Python code to a file and execute it, and return the execution result.
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Code would be overwritten to the same file when this tool is called multiple times.`,
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ParamsOneOf: schema.NewParamsOneOfByParams(map[string]*schema.ParameterInfo{
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"code": {
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Type: "string",
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Desc: "Python code to be executed. " +
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"The code MUST be enclosed in a Markdown code block starting with ```python and ending with ```. " +
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"CRITICAL: The code within the block must be a raw, multi-line string with real newlines. " +
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"It MUST NOT be a JSON-escaped string containing literal '\\n' or '\\\"' sequences. " +
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"The code must be ready for direct execution without any unescaping. " +
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"Do not generate code comments.",
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Required: true,
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},
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}),
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}
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func NewPythonRunnerTool(op commandline.Operator) tool.InvokableTool {
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return &pythonRunnerTool{op: op}
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}
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type pythonRunnerTool struct {
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op commandline.Operator
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}
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func (p *pythonRunnerTool) Info(ctx context.Context) (*schema.ToolInfo, error) {
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return toolPythonRunnerInfo, nil
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}
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func (p *pythonRunnerTool) InvokableRun(ctx context.Context, argumentsInJSON string, opts ...tool.Option) (string, error) {
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code := tryExtractCodeSnippet(argumentsInJSON)
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if code == "" {
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return "", fmt.Errorf("python code is empty, original=%s", argumentsInJSON)
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}
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taskID := params.MustGetContextParams[string](ctx, params.TaskIDKey)
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wd, ok := params.GetTypedContextParams[string](ctx, params.WorkDirSessionKey)
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if !ok {
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return "", fmt.Errorf("work dir not found")
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}
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filePath := filepath.Join(wd, fmt.Sprintf("%s.py", taskID))
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if err := p.op.WriteFile(ctx, filePath, code); err != nil {
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return fmt.Sprintf("failed to create python file %s: %v", filePath, err), nil
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}
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pyExecutablePath := os.Getenv("EXCEL_AGENT_PYTHON_EXECUTABLE_PATH")
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if pyExecutablePath == "" {
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pyExecutablePath = "python"
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}
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result, err := p.op.RunCommand(ctx, []string{pyExecutablePath, filePath})
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if err != nil {
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if strings.HasPrefix(err.Error(), "internal error") {
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return err.Error(), nil
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}
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return "", fmt.Errorf("execute error: %w", err)
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}
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return utils.FormatCommandOutput(result), nil
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}
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func tryExtractCodeSnippet(res string) string {
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var input struct {
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Code string `json:"code"`
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}
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var codeToProcess string
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err := jsoniter.Unmarshal([]byte(res), &input)
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if err != nil {
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codeToProcess = res
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} else {
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codeToProcess = input.Code
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}
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rawCode := extractCodeSnippet(codeToProcess)
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unescapedCode := strings.NewReplacer(
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"\\\\", "\\",
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"\\n", "\n",
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"\\r", "\r",
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"\\t", "\t",
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"\\\"", "\"",
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"\\'", "'",
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).Replace(rawCode)
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return unescapedCode
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}
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func extractCodeSnippet(res string) string {
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codePattern := regexp.MustCompile("(?s)```python\\s*(.*?)\\s*```")
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codeMatch := codePattern.FindStringSubmatch(res)
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if len(codeMatch) > 1 {
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return strings.TrimSpace(codeMatch[1])
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} else {
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fallbackPattern := regexp.MustCompile("(?s)```\\s*(.*?)\\s*```")
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fallbackMatch := fallbackPattern.FindStringSubmatch(res)
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if len(fallbackMatch) > 1 {
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return strings.TrimSpace(fallbackMatch[1])
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} else {
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return strings.TrimSpace(res)
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}
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}
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}
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