Files
2025-07-15 16:40:25 +08:00

128 lines
4.2 KiB
Lua

local Path = require("plenary.path")
local Utils = require("avante.utils")
local Base = require("avante.llm_tools.base")
local Helpers = require("avante.llm_tools.helpers")
---@class AvanteLLMTool
local M = setmetatable({}, Base)
M.name = "view"
M.description = [[Reads the content of the given file in the project.
- Never attempt to read a path that hasn't been previously mentioned.
IMPORTANT NOTE: If the file content exceeds a certain size, the returned content will be truncated, and `is_truncated` will be set to true. If `is_truncated` is true, please use the `start_line` parameter and `end_line` parameter to call this `view` tool again.
]]
M.enabled = function(opts)
if opts.user_input:match("@read_global_file") then return false end
for _, message in ipairs(opts.history_messages) do
if message.role == "user" then
local content = message.content
if type(content) == "string" and content:match("@read_global_file") then return false end
if type(content) == "table" then
for _, item in ipairs(content) do
if type(item) == "string" and item:match("@read_global_file") then return false end
end
end
end
end
return true
end
---@type AvanteLLMToolParam
M.param = {
type = "table",
fields = {
{
name = "path",
description = [[The relative path of the file to read.
This path should never be absolute, and the first component of the path should always be a root directory in a project.
<example>
If the project has the following root directories:
- directory1
- directory2
If you want to access `file.txt` in `directory1`, you should use the path `directory1/file.txt`. If you want to access `file.txt` in `directory2`, you should use the path `directory2/file.txt`.
</example>]],
type = "string",
},
{
name = "start_line",
description = "Optional line number to start reading on (1-based index)",
type = "integer",
optional = true,
},
{
name = "end_line",
description = "Optional line number to end reading on (1-based index, inclusive)",
type = "integer",
optional = true,
},
},
usage = {
path = "The path to the file in the current project scope",
start_line = "The start line of the view range, 1-indexed",
end_line = "The end line of the view range, 1-indexed, and -1 for the end line means read to the end of the file",
},
}
---@type AvanteLLMToolReturn[]
M.returns = {
{
name = "content",
description = "Contents of the file",
type = "string",
},
{
name = "error",
description = "Error message if the file was not read successfully",
type = "string",
optional = true,
},
}
---@type AvanteLLMToolFunc<{ path: string, start_line?: integer, end_line?: integer }>
function M.func(input, opts)
local on_log = opts.on_log
local on_complete = opts.on_complete
if not input.path then return false, "path is required" end
if on_log then on_log("path: " .. input.path) end
local abs_path = Helpers.get_abs_path(input.path)
if not Helpers.has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
if not Path:new(abs_path):exists() then return false, "Path not found: " .. abs_path end
if Path:new(abs_path):is_dir() then return false, "Path is a directory: " .. abs_path end
local file = io.open(abs_path, "r")
if not file then return false, "file not found: " .. abs_path end
local lines = Utils.read_file_from_buf_or_disk(abs_path)
local start_line = input.start_line
local end_line = input.end_line
if start_line and end_line and lines then lines = vim.list_slice(lines, start_line, end_line) end
local truncated_lines = {}
local is_truncated = false
local size = 0
for _, line in ipairs(lines or {}) do
size = size + #line
if size > 2048 * 100 then
is_truncated = true
break
end
table.insert(truncated_lines, line)
end
local total_line_count = lines and #lines or 0
local content = truncated_lines and table.concat(truncated_lines, "\n") or ""
local result = vim.json.encode({
content = content,
total_line_count = total_line_count,
is_truncated = is_truncated,
})
if not on_complete then return result, nil end
on_complete(result, nil)
end
return M