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Feat: Add initial Gist tools#340
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,247 @@ | ||
| package github | ||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "github.com/github/github-mcp-server/pkg/translations" | ||
| "github.com/google/go-github/v69/github" | ||
| "github.com/mark3labs/mcp-go/mcp" | ||
| "github.com/mark3labs/mcp-go/server" | ||
| ) | ||
| // ListGists creates a tool to list gists for a user | ||
| func ListGists(getClient GetClientFn, t translations.TranslationHelperFunc) (tool mcp.Tool, handler server.ToolHandlerFunc) { | ||
| return mcp.NewTool("list_gists", | ||
| mcp.WithDescription(t("TOOL_LIST_GISTS_DESCRIPTION", "List gists for a user")), | ||
| mcp.WithString("username", | ||
| mcp.Description("GitHub username (omit for authenticated user's gists)"), | ||
| ), | ||
| mcp.WithString("since", | ||
| mcp.Description("Only gists updated after this time (ISO 8601 timestamp)"), | ||
| ), | ||
| WithPagination(), | ||
| ), | ||
| func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { | ||
| username, err := OptionalParam[string](request, "username") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| since, err := OptionalParam[string](request, "since") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| pagination, err := OptionalPaginationParams(request) | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| opts := &github.GistListOptions{ | ||
| ListOptions: github.ListOptions{ | ||
| Page: pagination.page, | ||
| PerPage: pagination.perPage, | ||
| }, | ||
| } | ||
| // Parse since timestamp if provided | ||
| if since != "" { | ||
| sinceTime, err := parseISOTimestamp(since) | ||
| if err != nil { | ||
| return mcp.NewToolResultError(fmt.Sprintf("invalid since timestamp: %v", err)), nil | ||
| } | ||
| opts.Since = sinceTime | ||
| } | ||
| client, err := getClient(ctx) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get GitHub client: %w", err) | ||
| } | ||
| gists, resp, err := client.Gists.List(ctx, username, opts) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to list gists: %w", err) | ||
| } | ||
| defer func() { _ = resp.Body.Close() }() | ||
| if resp.StatusCode != http.StatusOK { | ||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to read response body: %w", err) | ||
| } | ||
| return mcp.NewToolResultError(fmt.Sprintf("failed to list gists: %s", string(body))), nil | ||
| } | ||
| r, err := json.Marshal(gists) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to marshal response: %w", err) | ||
| } | ||
| return mcp.NewToolResultText(string(r)), nil | ||
| } | ||
| } | ||
| // CreateGist creates a tool to create a new gist | ||
| func CreateGist(getClient GetClientFn, t translations.TranslationHelperFunc) (tool mcp.Tool, handler server.ToolHandlerFunc) { | ||
| return mcp.NewTool("create_gist", | ||
| mcp.WithDescription(t("TOOL_CREATE_GIST_DESCRIPTION", "Create a new gist")), | ||
| mcp.WithString("description", | ||
| mcp.Description("Description of the gist"), | ||
| ), | ||
| mcp.WithString("filename", | ||
| mcp.Required(), | ||
| mcp.Description("Filename for simple single-file gist creation"), | ||
| ), | ||
| mcp.WithString("content", | ||
| mcp.Required(), | ||
| mcp.Description("Content for simple single-file gist creation"), | ||
| ), | ||
| mcp.WithBoolean("public", | ||
| mcp.Description("Whether the gist is public"), | ||
| mcp.DefaultBool(false), | ||
| ), | ||
| ), | ||
| func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { | ||
| description, err := OptionalParam[string](request, "description") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| filename, err := requiredParam[string](request, "filename") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| content, err := requiredParam[string](request, "content") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| public, err := OptionalParam[bool](request, "public") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| files := make(map[github.GistFilename]github.GistFile) | ||
| files[github.GistFilename(filename)] = github.GistFile{ | ||
| Filename: github.Ptr(filename), | ||
| Content: github.Ptr(content), | ||
| } | ||
| gist := &github.Gist{ | ||
| Files: files, | ||
| Public: github.Ptr(public), | ||
| Description: github.Ptr(description), | ||
| } | ||
| client, err := getClient(ctx) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get GitHub client: %w", err) | ||
| } | ||
| createdGist, resp, err := client.Gists.Create(ctx, gist) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to create gist: %w", err) | ||
| } | ||
| defer func() { _ = resp.Body.Close() }() | ||
| if resp.StatusCode != http.StatusCreated { | ||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to read response body: %w", err) | ||
| } | ||
| return mcp.NewToolResultError(fmt.Sprintf("failed to create gist: %s", string(body))), nil | ||
| } | ||
| r, err := json.Marshal(createdGist) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to marshal response: %w", err) | ||
| } | ||
| return mcp.NewToolResultText(string(r)), nil | ||
| } | ||
| } | ||
| // UpdateGist creates a tool to edit an existing gist | ||
| func UpdateGist(getClient GetClientFn, t translations.TranslationHelperFunc) (tool mcp.Tool, handler server.ToolHandlerFunc) { | ||
| return mcp.NewTool("update_gist", | ||
| mcp.WithDescription(t("TOOL_UPDATE_GIST_DESCRIPTION", "Update an existing gist")), | ||
| mcp.WithString("gist_id", | ||
| mcp.Required(), | ||
| mcp.Description("ID of the gist to update"), | ||
| ), | ||
| mcp.WithString("description", | ||
| mcp.Description("Updated description of the gist"), | ||
| ), | ||
| mcp.WithString("filename", | ||
| mcp.Required(), | ||
| mcp.Description("Filename to update or create"), | ||
| ), | ||
| mcp.WithString("content", | ||
| mcp.Required(), | ||
| mcp.Description("Content for the file"), | ||
| ), | ||
| ), | ||
| func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { | ||
| gistID, err := requiredParam[string](request, "gist_id") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| description, err := OptionalParam[string](request, "description") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| filename, err := requiredParam[string](request, "filename") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| content, err := requiredParam[string](request, "content") | ||
| if err != nil { | ||
| return mcp.NewToolResultError(err.Error()), nil | ||
| } | ||
| files := make(map[github.GistFilename]github.GistFile) | ||
| files[github.GistFilename(filename)] = github.GistFile{ | ||
| Filename: github.Ptr(filename), | ||
| Content: github.Ptr(content), | ||
| } | ||
| gist := &github.Gist{ | ||
| Files: files, | ||
| Description: github.Ptr(description), | ||
| } | ||
| client, err := getClient(ctx) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get GitHub client: %w", err) | ||
| } | ||
| updatedGist, resp, err := client.Gists.Edit(ctx, gistID, gist) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to update gist: %w", err) | ||
| } | ||
| defer func() { _ = resp.Body.Close() }() | ||
| if resp.StatusCode != http.StatusOK { | ||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to read response body: %w", err) | ||
| } | ||
| return mcp.NewToolResultError(fmt.Sprintf("failed to update gist: %s", string(body))), nil | ||
| } | ||
| r, err := json.Marshal(updatedGist) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to marshal response: %w", err) | ||
| } | ||
| return mcp.NewToolResultText(string(r)), nil | ||
| } | ||
| } |
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