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# Conflicts: # LangChain.sln # src/Databases/Sqlite/src/LangChain.Databases.Sqlite.csproj
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| name: dependabot auto-approve and auto-merge | ||
| on: pull_request | ||
|
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| permissions: | ||
| contents: write | ||
| pull-requests: write | ||
|
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| jobs: | ||
| dependabot: | ||
| runs-on: ubuntu-latest | ||
| if: ${{ github.actor == 'dependabot[bot]' && github.repository_owner == 'tryAGI' }} | ||
| steps: | ||
| - name: Dependabot metadata | ||
| id: metadata | ||
| uses: dependabot/fetch-metadata@0fb21704c18a42ce5aa8d720ea4b912f5e6babef | ||
| with: | ||
| github-token: "${{ secrets.GITHUB_TOKEN }}" | ||
|
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| - name: Approve a PR | ||
| run: gh pr review --approve "$PR_URL" | ||
| env: | ||
| PR_URL: ${{ github.event.pull_request.html_url }} | ||
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | ||
|
|
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| - name: Enable auto-merge for Dependabot PRs | ||
| run: gh pr merge --auto --merge "$PR_URL" | ||
| env: | ||
| PR_URL: ${{ github.event.pull_request.html_url }} | ||
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} |
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| # LangChain CLI | ||
|
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| This is a console utility that will help you use our library for such tasks: | ||
| - Summarize text | ||
| - Generate release notes | ||
| - Generate changelog | ||
| - Generate documentation | ||
| - Generate code snippets | ||
| - Generate code samples | ||
| - Generate code documentation | ||
|
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| ## Usage: | ||
| ``` | ||
| dotnet tool install -g langchain.cli | ||
| langchain auth openai OPENAI_API_KEY | ||
| langchain summarize --input README.md --output SUMMARY.md | ||
| ``` |
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| using System.CommandLine; | ||
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| namespace LangChain.Cli.Commands.Auth; | ||
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| public class AuthCommand : Command | ||
| { | ||
| public AuthCommand() : base(name: "auth", description: "Authenticates a provider.") | ||
| { | ||
| AddCommand(new OpenAiCommand()); | ||
| AddCommand(new OpenRouterCommand()); | ||
| } | ||
| } |
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| using System.CommandLine; | ||
| using OpenAI.Constants; | ||
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| namespace LangChain.Cli.Commands.Auth; | ||
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| public class OpenAiCommand : Command | ||
| { | ||
| public OpenAiCommand() : base(name: Providers.OpenAi, description: "Authenticates OpenAI provider.") | ||
| { | ||
| var apiKeyArgument = new Argument<string>( | ||
| name: "Api key", | ||
| description: "OpenAI API key from https://platform.openai.com/account/api-keys"); | ||
| var modelOption = new Option<string>( | ||
| aliases: ["--model", "-m"], | ||
| getDefaultValue: () => ChatModels.Gpt35Turbo, | ||
| description: "Model to use for commands"); | ||
| AddArgument(apiKeyArgument); | ||
| AddOption(modelOption); | ||
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| this.SetHandler(HandleAsync, apiKeyArgument, modelOption); | ||
| } | ||
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| private static async Task HandleAsync(string apiKey, string model) | ||
| { | ||
| await Helpers.AuthenticateWithApiKeyAsync(apiKey, model, Providers.OpenAi).ConfigureAwait(false); | ||
| } | ||
| } |
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| using System.CommandLine; | ||
| using LangChain.Providers.OpenRouter; | ||
| using OpenAI.Constants; | ||
|
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| namespace LangChain.Cli.Commands.Auth; | ||
|
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| public class OpenRouterCommand : Command | ||
| { | ||
| public OpenRouterCommand() : base(name: Providers.OpenRouter, description: "Authenticates OpenRouter provider.") | ||
| { | ||
| var apiKeyArgument = new Argument<string>( | ||
| name: "Api key", | ||
| description: "OpenRouter API key from https://openrouter.ai/keys"); | ||
| var modelOption = new Option<string>( | ||
| aliases: ["--model", "-m"], | ||
| getDefaultValue: () => OpenRouterModelProvider.GetModelById(OpenRouterModelIds.Mistral7BInstructFree), | ||
| description: "Model to use for commands"); | ||
| AddArgument(apiKeyArgument); | ||
| AddOption(modelOption); | ||
|
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| this.SetHandler(HandleAsync, apiKeyArgument, modelOption); | ||
| } | ||
|
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| private static async Task HandleAsync(string apiKey, string model) | ||
| { | ||
| await Helpers.AuthenticateWithApiKeyAsync(apiKey, model, Providers.OpenRouter).ConfigureAwait(false); | ||
| } | ||
| } |
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| using System.CommandLine; | ||
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| namespace LangChain.Cli.Commands; | ||
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| public class GenerateCommand : Command | ||
| { | ||
| public GenerateCommand() : base(name: "generate", description: "Generates text using a prompt.") | ||
| { | ||
| var inputPathArgument = CommonArguments.InputPath; | ||
| var outputPathArgument = CommonArguments.OutputPath; | ||
| AddArgument(inputPathArgument); | ||
| AddArgument(outputPathArgument); | ||
|
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| this.SetHandler(HandleAsync, inputPathArgument, outputPathArgument); | ||
| } | ||
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| private static async Task HandleAsync(string inputPath, string outputPath) | ||
| { | ||
| var inputText = await File.ReadAllTextAsync(inputPath).ConfigureAwait(false); | ||
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| var outputText = await Helpers.GenerateUsingAuthenticatedModelAsync(inputText).ConfigureAwait(false); | ||
|
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| await File.WriteAllTextAsync(outputPath, outputText).ConfigureAwait(false); | ||
| } | ||
| } |
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| using System.CommandLine; | ||
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| namespace LangChain.Cli.Commands; | ||
|
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| public class SummarizeCommand : Command | ||
| { | ||
| public SummarizeCommand() : base(name: "summarize", description: "Summarizes text using a provider.") | ||
| { | ||
| var inputPathArgument = CommonArguments.InputPath; | ||
| var outputPathArgument = CommonArguments.OutputPath; | ||
| var wordCountOption = new Option<int>( | ||
| aliases: ["--word-count", "-w"], getDefaultValue: () => 20, description: "Word count for summary"); | ||
|
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| AddArgument(inputPathArgument); | ||
| AddArgument(outputPathArgument); | ||
| AddOption(wordCountOption); | ||
|
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| this.SetHandler(HandleAsync, inputPathArgument, outputPathArgument, wordCountOption); | ||
| } | ||
|
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| private static async Task HandleAsync(string inputPath, string outputPath, int wordCount) | ||
| { | ||
| var inputText = await File.ReadAllTextAsync(inputPath).ConfigureAwait(false); | ||
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| var outputText = await Helpers.GenerateUsingAuthenticatedModelAsync( | ||
| $""" | ||
| Please summarize the the following text in {wordCount} words or less: | ||
| {inputText} | ||
| """).ConfigureAwait(false); | ||
|
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| await File.WriteAllTextAsync(outputPath, outputText).ConfigureAwait(false); | ||
| } | ||
| } |
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| using System.CommandLine; | ||
|
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| namespace LangChain.Cli; | ||
|
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| public static class CommonArguments | ||
| { | ||
| public static Argument<string> InputPath => new( | ||
| name: "Input file", | ||
| description: "Input file path"); | ||
|
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| public static Argument<string> OutputPath => new ( | ||
| name: "Output file", | ||
| description: "Output file path"); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| using LangChain.Providers; | ||
| using LangChain.Providers.OpenAI; | ||
| using LangChain.Providers.OpenRouter; | ||
|
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| namespace LangChain.Cli; | ||
|
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| public static class Helpers | ||
| { | ||
| public static string GetSettingsFolder() | ||
| { | ||
| var folder = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "LangChainDotnet.Cli"); | ||
| Directory.CreateDirectory(folder); | ||
|
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| return folder; | ||
| } | ||
|
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| public static async Task AuthenticateWithApiKeyAsync(string apiKey, string model, string provider) | ||
| { | ||
| var settingsFolder = GetSettingsFolder(); | ||
|
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| await File.WriteAllTextAsync(Path.Combine(settingsFolder, "provider.txt"), provider).ConfigureAwait(false); | ||
| await File.WriteAllTextAsync(Path.Combine(settingsFolder, "model.txt"), model).ConfigureAwait(false); | ||
| await File.WriteAllTextAsync(Path.Combine(settingsFolder, "api_key.txt"), apiKey).ConfigureAwait(false); | ||
| } | ||
|
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| public static async Task<string> GenerateUsingAuthenticatedModelAsync(string prompt) | ||
| { | ||
| var settingsFolder = GetSettingsFolder(); | ||
|
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| ChatModel model; | ||
| switch (await File.ReadAllTextAsync(Path.Combine(settingsFolder, "provider.txt")).ConfigureAwait(false)) | ||
| { | ||
| case Providers.OpenAi: | ||
| { | ||
| var provider = new OpenAiProvider(apiKey: await File.ReadAllTextAsync(Path.Combine(settingsFolder, "api_key.txt")).ConfigureAwait(false)); | ||
| model = new OpenAiChatModel(provider, id: await File.ReadAllTextAsync(Path.Combine(settingsFolder, "model.txt")).ConfigureAwait(false)); | ||
| break; | ||
|
|
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| } | ||
| case Providers.OpenRouter: | ||
| { | ||
| var provider = new OpenRouterProvider(apiKey: await File.ReadAllTextAsync(Path.Combine(settingsFolder, "api_key.txt")).ConfigureAwait(false)); | ||
| model = new OpenRouterModel(provider, id: await File.ReadAllTextAsync(Path.Combine(settingsFolder, "model.txt")).ConfigureAwait(false)); | ||
| break; | ||
| } | ||
| default: | ||
| throw new NotSupportedException("Provider not supported."); | ||
| } | ||
|
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| return await model.GenerateAsync(prompt).ConfigureAwait(false); | ||
| } | ||
| } |
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