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| 1 | +local h = require("null-ls.helpers") |
| 2 | +local methods = require("null-ls.methods") |
| 3 | + |
| 4 | +local FORMATTING = methods.internal.FORMATTING |
| 5 | + |
| 6 | +return h.make_builtin({ |
| 7 | + name = "blackd", |
| 8 | + meta = { |
| 9 | + url = "https://github.com/psf/black", |
| 10 | + description = "blackd is a small HTTP server that exposes Black’s functionality over a simple protocol. The main benefit of using it is to avoid the cost of starting up a new Black process every time you want to blacken a file. The only way to configure the formatter is by using the provided config options, it will not pick up on config files.", |
| 11 | + |
| 12 | + config = { |
| 13 | + { |
| 14 | + key = "hostname", |
| 15 | + type = "string", |
| 16 | + description = "Address to bind the server to. Defaults to localhost.", |
| 17 | + }, |
| 18 | + { key = "port", type = "string", description = "Port to listen on. Defaults to 45484." }, |
| 19 | + { |
| 20 | + key = "line_length", |
| 21 | + type = "number", |
| 22 | + description = "Set how many characters per line to allow. Defaults to 88.", |
| 23 | + }, |
| 24 | + { |
| 25 | + key = "skip_source_first_line", |
| 26 | + type = "boolean", |
| 27 | + description = "If set to true, the first line of the source code will be ignored. Defaults to false.", |
| 28 | + }, |
| 29 | + { |
| 30 | + key = "skip_string_normalization", |
| 31 | + type = "boolean", |
| 32 | + description = "If set to true, no string normalization will be performed. Defaults to false.", |
| 33 | + }, |
| 34 | + { |
| 35 | + key = "skip_magic_trailing_comma", |
| 36 | + type = "boolean", |
| 37 | + description = "If set to true, trailing commas will not be used as a reason to split lines. Defaults to false.", |
| 38 | + }, |
| 39 | + { |
| 40 | + key = "preview", |
| 41 | + type = "boolean", |
| 42 | + description = "If set to true, experimental and potentially disruptive style changes will be used. Defaults to false.", |
| 43 | + }, |
| 44 | + { |
| 45 | + key = "fast", |
| 46 | + type = "boolean", |
| 47 | + description = "If set to true, Black will not perform an AST safety check after formatting. Defaults to false.", |
| 48 | + }, |
| 49 | + { |
| 50 | + key = "python_variant", |
| 51 | + type = "string", |
| 52 | + description = "If set to pyi, Black will format all input files like typing stubs regardless of the file extension. Otherwise, its value must correspond to a Python version or a set of comma-separated Python versions, optionally prefixed with py. (e.g. py3.5,py3.6). Defaults to empty string.", |
| 53 | + }, |
| 54 | + }, |
| 55 | + }, |
| 56 | + method = FORMATTING, |
| 57 | + filetypes = { "python" }, |
| 58 | + generator = { |
| 59 | + async = true, |
| 60 | + fn = function(params, done) |
| 61 | + local config = params:get_config() |
| 62 | + local hostname = config.hostname or "localhost" |
| 63 | + local port = config.port or 45484 |
| 64 | + require("plenary.curl").post(hostname .. ":" .. port, { |
| 65 | + body = table.concat(params.content, "\n"), |
| 66 | + headers = { |
| 67 | + ["X-Line-Length"] = config.line_length or 88, |
| 68 | + ["X-Skip-Source-First-Line"] = config.skip_source_first_line or nil, |
| 69 | + ["X-Skip-String-Normalization"] = config.skip_string_normalization or nil, |
| 70 | + ["X-Skip-Magic-Trailing-Comma"] = config.skip_magic_trailing_comma or nil, |
| 71 | + ["X-Preview"] = config.preview or nil, |
| 72 | + ["X-Fast-Or-Safe"] = config.fast == "fast" and "fast" or nil, |
| 73 | + ["X-Python-Variant"] = config.python_variant or "", |
| 74 | + }, |
| 75 | + callback = function(response) |
| 76 | + if response.status == 200 then |
| 77 | + return done({ { text = response.body } }) |
| 78 | + end |
| 79 | + return done() |
| 80 | + end, |
| 81 | + }) |
| 82 | + end, |
| 83 | + }, |
| 84 | +}) |
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