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import { BrowseRefsSchema } from "./schema-readonly";
import { ManageRefSchema } from "./schema";
import { gitlab, toQuery } from "../../utils/gitlab-api";
import { ToolRegistry, EnhancedToolDefinition } from "../../types";
import { isActionDenied } from "../../config";
/**
* Refs tools registry - 2 CQRS tools
*
* browse_refs (Query): list_branches, get_branch, list_tags, get_tag,
* list_protected_branches, get_protected_branch, list_protected_tags
* manage_ref (Command): create_branch, delete_branch, protect_branch, unprotect_branch,
* update_branch_protection, create_tag, delete_tag, protect_tag, unprotect_tag
*/
export const refsToolRegistry: ToolRegistry = new Map<string, EnhancedToolDefinition>([
// ============================================================================
// browse_refs - CQRS Query Tool (discriminated union schema)
// TypeScript automatically narrows types in each switch case
// ============================================================================
[
"browse_refs",
{
name: "browse_refs",
description:
"Inspect branches, tags, and their protection rules. Actions: list_branches, get_branch, list_tags, get_tag, list_protected_branches, get_protected_branch, list_protected_tags (protection details and access levels). Related: manage_ref to create/delete/protect, browse_commits for commit history.",
inputSchema: z.toJSONSchema(BrowseRefsSchema),
handler: async (args: unknown): Promise<unknown> => {
const input = BrowseRefsSchema.parse(args);
// Runtime validation: reject denied actions even if they bypass schema filtering
if (isActionDenied("browse_refs", input.action)) {
throw new Error(`Action '${input.action}' is not allowed for browse_refs tool`);
}
const encodedProjectId = encodeURIComponent(input.project_id);
switch (input.action) {
case "list_branches": {
const { action: _action, project_id: _projectId, ...queryOptions } = input;
return gitlab.get(`projects/${encodedProjectId}/repository/branches`, {
query: toQuery(queryOptions, []),
});
}
case "get_branch": {
const { branch } = input;
const encodedBranch = encodeURIComponent(branch);
return gitlab.get(`projects/${encodedProjectId}/repository/branches/${encodedBranch}`);
}
case "list_tags": {
const { action: _action, project_id: _projectId, ...queryOptions } = input;
return gitlab.get(`projects/${encodedProjectId}/repository/tags`, {
query: toQuery(queryOptions, []),
});
}
case "get_tag": {
const { tag_name } = input;
const encodedTagName = encodeURIComponent(tag_name);
return gitlab.get(`projects/${encodedProjectId}/repository/tags/${encodedTagName}`);
}
case "list_protected_branches": {
const { action: _action, project_id: _projectId, ...queryOptions } = input;
return gitlab.get(`projects/${encodedProjectId}/protected_branches`, {
query: toQuery(queryOptions, []),
});
}
case "get_protected_branch": {
const { name } = input;
const encodedName = encodeURIComponent(name);
return gitlab.get(`projects/${encodedProjectId}/protected_branches/${encodedName}`);
}
case "list_protected_tags": {
const { action: _action, project_id: _projectId, ...queryOptions } = input;
return gitlab.get(`projects/${encodedProjectId}/protected_tags`, {
query: toQuery(queryOptions, []),
});
}
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
// ============================================================================
// manage_ref - CQRS Command Tool (discriminated union schema)
// TypeScript automatically narrows types in each switch case
// ============================================================================
[
"manage_ref",
{
name: "manage_ref",
description:
"Create, delete, and protect branches and tags. Actions: create_branch (from ref), delete_branch, protect_branch (set allowed roles), unprotect_branch, update_branch_protection, create_tag (annotated or lightweight), delete_tag, protect_tag, unprotect_tag. Related: browse_refs for inspection.",
inputSchema: z.toJSONSchema(ManageRefSchema),
handler: async (args: unknown): Promise<unknown> => {
const input = ManageRefSchema.parse(args);
// Runtime validation: reject denied actions even if they bypass schema filtering
if (isActionDenied("manage_ref", input.action)) {
throw new Error(`Action '${input.action}' is not allowed for manage_ref tool`);
}
const encodedProjectId = encodeURIComponent(input.project_id);
switch (input.action) {
case "create_branch": {
const { branch, ref } = input;
return gitlab.post(`projects/${encodedProjectId}/repository/branches`, {
body: { branch, ref },
contentType: "json",
});
}
case "delete_branch": {
const { branch } = input;
const encodedBranch = encodeURIComponent(branch);
await gitlab.delete(
`projects/${encodedProjectId}/repository/branches/${encodedBranch}`
);
return { deleted: true, branch };
}
case "protect_branch": {
const {
action: _action,
project_id: _projectId,
name,
push_access_level,
merge_access_level,
unprotect_access_level,
allow_force_push,
allowed_to_push,
allowed_to_merge,
allowed_to_unprotect,
code_owner_approval_required,
} = input;
const body: Record<string, unknown> = { name };
if (push_access_level !== undefined) body.push_access_level = push_access_level;
if (merge_access_level !== undefined) body.merge_access_level = merge_access_level;
if (unprotect_access_level !== undefined)
body.unprotect_access_level = unprotect_access_level;
if (allow_force_push !== undefined) body.allow_force_push = allow_force_push;
Iif (allowed_to_push !== undefined) body.allowed_to_push = allowed_to_push;
Iif (allowed_to_merge !== undefined) body.allowed_to_merge = allowed_to_merge;
if (allowed_to_unprotect !== undefined)
body.allowed_to_unprotect = allowed_to_unprotect;
if (code_owner_approval_required !== undefined)
body.code_owner_approval_required = code_owner_approval_required;
return gitlab.post(`projects/${encodedProjectId}/protected_branches`, {
body,
contentType: "json",
});
}
case "unprotect_branch": {
const { name } = input;
const encodedName = encodeURIComponent(name);
await gitlab.delete(`projects/${encodedProjectId}/protected_branches/${encodedName}`);
return { unprotected: true, name };
}
case "update_branch_protection": {
const {
action: _action,
project_id: _projectId,
name,
allow_force_push,
allowed_to_push,
allowed_to_merge,
allowed_to_unprotect,
code_owner_approval_required,
} = input;
const encodedName = encodeURIComponent(name);
const body: Record<string, unknown> = {};
if (allow_force_push !== undefined) body.allow_force_push = allow_force_push;
if (allowed_to_push !== undefined) body.allowed_to_push = allowed_to_push;
if (allowed_to_merge !== undefined) body.allowed_to_merge = allowed_to_merge;
if (allowed_to_unprotect !== undefined)
body.allowed_to_unprotect = allowed_to_unprotect;
if (code_owner_approval_required !== undefined)
body.code_owner_approval_required = code_owner_approval_required;
return gitlab.patch(`projects/${encodedProjectId}/protected_branches/${encodedName}`, {
body,
contentType: "json",
});
}
case "create_tag": {
const { tag_name, ref, message } = input;
const body: Record<string, unknown> = { tag_name, ref };
if (message !== undefined) body.message = message;
return gitlab.post(`projects/${encodedProjectId}/repository/tags`, {
body,
contentType: "json",
});
}
case "delete_tag": {
const { tag_name } = input;
const encodedTagName = encodeURIComponent(tag_name);
await gitlab.delete(`projects/${encodedProjectId}/repository/tags/${encodedTagName}`);
return { deleted: true, tag_name };
}
case "protect_tag": {
const {
action: _action,
project_id: _projectId,
name,
create_access_level,
allowed_to_create,
} = input;
const body: Record<string, unknown> = { name };
if (create_access_level !== undefined) body.create_access_level = create_access_level;
if (allowed_to_create !== undefined) body.allowed_to_create = allowed_to_create;
return gitlab.post(`projects/${encodedProjectId}/protected_tags`, {
body,
contentType: "json",
});
}
case "unprotect_tag": {
const { name } = input;
const encodedName = encodeURIComponent(name);
await gitlab.delete(`projects/${encodedProjectId}/protected_tags/${encodedName}`);
return { unprotected: true, name };
}
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
]);
/**
* Get read-only tool names from the registry
*/
export function getRefsReadOnlyToolNames(): string[] {
return ["browse_refs"];
}
/**
* Get all tool definitions from the registry
*/
export function getRefsToolDefinitions(): EnhancedToolDefinition[] {
return Array.from(refsToolRegistry.values());
}
/**
* Get filtered tools based on read-only mode
*/
export function getFilteredRefsTools(readOnlyMode: boolean = false): EnhancedToolDefinition[] {
if (readOnlyMode) {
const readOnlyNames = getRefsReadOnlyToolNames();
return Array.from(refsToolRegistry.values()).filter(tool => readOnlyNames.includes(tool.name));
}
return getRefsToolDefinitions();
}
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