module main import markdown import os import os.cmdline import time import strings import sync import runtime import v.doc import v.pref import v.vmod import json import term const ( allowed_formats = ['md', 'markdown', 'json', 'text', 'stdout', 'html', 'htm'] vexe = pref.vexe_path() vroot = os.dir(vexe) tabs = ['\t\t', '\t\t\t\t\t\t', '\t\t\t\t\t\t\t'] ) enum OutputType { unset html markdown json plaintext stdout } struct VDoc { cfg Config [required] mut: docs []doc.Doc assets map[string]string manifest vmod.Manifest search_index []string search_data []SearchResult search_module_index []string // search results are split into a module part and the rest search_module_data []SearchModuleResult } struct Config { mut: pub_only bool = true show_loc bool // for plaintext is_color bool is_multi bool is_vlib bool is_verbose bool include_readme bool include_examples bool = true include_comments bool // for plaintext inline_assets bool theme_dir string = default_theme no_timestamp bool output_path string output_type OutputType = .unset input_path string symbol_name string platform doc.Platform } // struct Output { mut: path string typ OutputType = .unset } struct ParallelDoc { d doc.Doc out Output } fn (vd VDoc) gen_json(d doc.Doc) string { cfg := vd.cfg mut jw := strings.new_builder(200) comments := if cfg.include_examples { d.head.merge_comments() } else { d.head.merge_comments_without_examples() } jw.write_string('{"module_name":"$d.head.name","description":"${escape(comments)}","contents":') jw.write_string(json.encode(d.contents.keys().map(d.contents[it]))) jw.write_string(',"generator":"vdoc","time_generated":"$d.time_generated.str()"}') return jw.str() } fn (vd VDoc) gen_plaintext(d doc.Doc) string { cfg := vd.cfg mut pw := strings.new_builder(200) if cfg.is_color { content_arr := d.head.content.split(' ') pw.writeln('${term.bright_blue(content_arr[0])} ${term.green(content_arr[1])}\n') } else { pw.writeln('$d.head.content\n') } if cfg.include_comments { comments := if cfg.include_examples { d.head.merge_comments() } else { d.head.merge_comments_without_examples() } if comments.trim_space().len > 0 { pw.writeln(indent(comments)) } } vd.write_plaintext_content(d.contents.arr(), mut pw) return pw.str() } fn indent(s string) string { return ' ' + s.replace('\n', '\n ') } fn (vd VDoc) write_plaintext_content(contents []doc.DocNode, mut pw strings.Builder) { cfg := vd.cfg for cn in contents { if cn.content.len > 0 { if cfg.is_color { pw.writeln(color_highlight(cn.content, vd.docs[0].table)) } else { pw.writeln(cn.content) } if cn.comments.len > 0 && cfg.include_comments { comments := cn.merge_comments_without_examples() pw.writeln(indent(comments.trim_space())) if cfg.include_examples { examples := cn.examples() for ex in examples { pw.write_string(' Example: ') mut fex := ex if ex.index_byte(`\n`) >= 0 { // multi-line example pw.write_byte(`\n`) fex = indent(ex) } if cfg.is_color { fex = color_highlight(fex, vd.docs[0].table) } pw.writeln(fex) } } } if cfg.show_loc { pw.writeln('Location: $cn.file_path:${cn.pos.line_nr + 1}\n') } } vd.write_plaintext_content(cn.children, mut pw) } } fn (vd VDoc) render_doc(d doc.Doc, out Output) (string, string) { name := vd.get_file_name(d.head.name, out) output := match out.typ { .html { vd.gen_html(d) } .markdown { vd.gen_markdown(d, true) } .json { vd.gen_json(d) } else { vd.gen_plaintext(d) } } return name, output } // get_file_name returns the final file name from a module name fn (vd VDoc) get_file_name(mod string, out Output) string { cfg := vd.cfg mut name := mod // since builtin is generated first, ignore it if (cfg.is_vlib && mod == 'builtin' && !cfg.include_readme) || mod == 'README' { name = 'index' } else if !cfg.is_multi && !os.is_dir(out.path) { name = os.file_name(out.path) } if name == '' { name = 'index' } name = name + match out.typ { .html { '.html' } .markdown { '.md' } .json { '.json' } else { '.txt' } } return name } fn (vd VDoc) work_processor(mut work sync.Channel, mut wg sync.WaitGroup) { for { mut pdoc := ParallelDoc{} if !work.pop(&pdoc) { break } file_name, content := vd.render_doc(pdoc.d, pdoc.out) output_path := os.join_path(pdoc.out.path, file_name) println('Generating $pdoc.out.typ in "$output_path"') os.write_file(output_path, content) or { panic(err) } } wg.done() } fn (vd VDoc) render_parallel(out Output) { vjobs := runtime.nr_jobs() mut work := sync.new_channel(u32(vd.docs.len)) mut wg := sync.new_waitgroup() for i in 0 .. vd.docs.len { p_doc := ParallelDoc{vd.docs[i], out} work.push(&p_doc) } work.close() wg.add(vjobs) for _ in 0 .. vjobs { go vd.work_processor(mut work, mut wg) } wg.wait() } fn (vd VDoc) render(out Output) map[string]string { mut docs := map[string]string{} for doc in vd.docs { name, output := vd.render_doc(doc, out) docs[name] = output.trim_space() } vd.vprintln('Rendered: ' + docs.keys().str()) return docs } fn (vd VDoc) get_readme(path string) string { mut fname := '' for name in ['readme', 'README'] { if os.exists(os.join_path(path, '${name}.md')) { fname = name break } } if fname == '' { return '' } readme_path := os.join_path(path, '${fname}.md') vd.vprintln('Reading README file from $readme_path') readme_contents := os.read_file(readme_path) or { '' } return readme_contents } fn (vd VDoc) emit_generate_err(err IError) { cfg := vd.cfg mut err_msg := err.msg if err.code == 1 { mod_list := get_modules_list(cfg.input_path, []string{}) println('Available modules:\n==================') for mod in mod_list { println(mod.all_after('vlib/').all_after('modules/').replace('/', '.')) } err_msg += ' Use the `-m` flag when generating docs from a directory that has multiple modules.' } eprintln(err_msg) } fn (mut vd VDoc) generate_docs_from_file() { cfg := vd.cfg mut out := Output{ path: cfg.output_path typ: cfg.output_type } if out.path.len == 0 { if cfg.output_type == .unset { out.typ = .stdout } else { vd.vprintln('No output path has detected. Using input path instead.') out.path = cfg.input_path } } else if out.typ == .unset { vd.vprintln('Output path detected. Identifying output type..') ext := os.file_ext(out.path) out.typ = set_output_type_from_str(ext.all_after('.')) } if cfg.include_readme && out.typ !in [.html, .stdout] { eprintln('vdoc: Including README.md for doc generation is supported on HTML output, or when running directly in the terminal.') exit(1) } dir_path := if cfg.is_vlib { vroot } else if os.is_dir(cfg.input_path) { cfg.input_path } else { os.dir(cfg.input_path) } manifest_path := os.join_path(dir_path, 'v.mod') if os.exists(manifest_path) { vd.vprintln('Reading v.mod info from $manifest_path') if manifest := vmod.from_file(manifest_path) { vd.manifest = manifest } } if cfg.include_readme { readme_contents := vd.get_readme(dir_path) comment := doc.DocComment{ text: readme_contents } if out.typ == .stdout { println(markdown.to_plain(readme_contents)) } else if out.typ == .html && cfg.is_multi { vd.docs << doc.Doc{ head: doc.DocNode{ name: 'README' comments: [comment] } time_generated: time.now() } } } dirs := if cfg.is_multi { get_modules_list(cfg.input_path, []string{}) } else { [ cfg.input_path, ] } for dirpath in dirs { vd.vprintln('Generating $out.typ docs for "$dirpath"') mut dcs := doc.generate(dirpath, cfg.pub_only, true, cfg.platform, cfg.symbol_name) or { vd.emit_generate_err(err) exit(1) } if dcs.contents.len == 0 { continue } if cfg.is_multi || (!cfg.is_multi && cfg.include_readme) { readme_contents := vd.get_readme(dirpath) comment := doc.DocComment{ text: readme_contents } dcs.head.comments = [comment] } if cfg.pub_only { for name, dc in dcs.contents { dcs.contents[name].content = dc.content.all_after('pub ') for i, cc in dc.children { dcs.contents[name].children[i].content = cc.content.all_after('pub ') } } } vd.docs << dcs } // Important. Let builtin be in the top of the module list // if we are generating docs for vlib. if cfg.is_vlib { mut docs := vd.docs.filter(it.head.name == 'builtin') docs << vd.docs.filter(it.head.name != 'builtin') vd.docs = docs } if dirs.len == 0 && cfg.is_multi { eprintln('vdoc: -m requires at least 1 module folder') exit(1) } vd.vprintln('Rendering docs...') if out.path.len == 0 || out.path == 'stdout' { if out.typ == .html { vd.render_static_html(out) } outputs := vd.render(out) if outputs.len == 0 { if dirs.len == 0 { eprintln('vdoc: No documentation found') } else { eprintln('vdoc: No documentation found for ${dirs[0]}') } exit(1) } else { first := outputs.keys()[0] println(outputs[first]) } } else { if !os.exists(out.path) { os.mkdir_all(out.path) or { panic(err) } } else if !os.is_dir(out.path) { out.path = os.real_path('.') } if cfg.is_multi { out.path = os.join_path(out.path, '_docs') if !os.exists(out.path) { os.mkdir(out.path) or { panic(err) } } else { for fname in css_js_assets { existing_asset_path := os.join_path(out.path, fname) if os.exists(existing_asset_path) { os.rm(existing_asset_path) or { panic(err) } } } } } if out.typ == .html { vd.render_static_html(out) } vd.render_parallel(out) if out.typ == .html { println('Creating search index...') vd.collect_search_index(out) vd.render_search_index(out) // move favicons to target directory println('Copying favicons...') favicons_path := os.join_path(cfg.theme_dir, 'favicons') favicons := os.ls(favicons_path) or { panic(err) } for favicon in favicons { favicon_path := os.join_path(favicons_path, favicon) destination_path := os.join_path(out.path, favicon) os.cp(favicon_path, destination_path) or { panic(err) } } } } } fn (vd VDoc) vprintln(str string) { if vd.cfg.is_verbose { println('vdoc: $str') } } fn parse_arguments(args []string) Config { mut cfg := Config{} cfg.is_color = term.can_show_color_on_stdout() for i := 0; i < args.len; i++ { arg := args[i] current_args := args[i..] match arg { '-all' { cfg.pub_only = false } '-f' { format := cmdline.option(current_args, '-f', '') if format !in allowed_formats { allowed_str := allowed_formats.join(', ') eprintln('vdoc: "$format" is not a valid format. Only $allowed_str are allowed.') exit(1) } cfg.output_type = set_output_type_from_str(format) i++ } '-color' { cfg.is_color = true } '-no-color' { cfg.is_color = false } '-inline-assets' { cfg.inline_assets = true } '-theme-dir' { cfg.theme_dir = cmdline.option(current_args, '-theme-dir', default_theme) } '-l' { cfg.show_loc = true } '-comments' { cfg.include_comments = true } '-m' { cfg.is_multi = true } '-o' { opath := cmdline.option(current_args, '-o', '') cfg.output_path = if opath == 'stdout' { opath } else { os.real_path(opath) } i++ } '-os' { platform_str := cmdline.option(current_args, '-os', '') if platform_str == 'cross' { eprintln('`v doc -os cross` is not supported yet.') exit(1) } selected_platform := doc.platform_from_string(platform_str) or { eprintln(err.msg) exit(1) } cfg.platform = selected_platform i++ } '-no-timestamp' { cfg.no_timestamp = true } '-no-examples' { cfg.include_examples = false } '-readme' { cfg.include_readme = true } '-v' { cfg.is_verbose = true } else { if cfg.input_path.len < 1 { cfg.input_path = arg } else if !cfg.is_multi { // Symbol name filtering should not be enabled // in multi-module documentation mode. cfg.symbol_name = arg } if i == args.len - 1 { break } } } } // Correct from configuration from user input if cfg.output_path == 'stdout' && cfg.output_type == .html { cfg.inline_assets = true } $if windows { cfg.input_path = cfg.input_path.replace('/', os.path_separator) } $else { cfg.input_path = cfg.input_path.replace('\\', os.path_separator) } is_path := cfg.input_path.ends_with('.v') || cfg.input_path.split(os.path_separator).len > 1 || cfg.input_path == '.' if cfg.input_path.trim_right('/') == 'vlib' { cfg.is_vlib = true cfg.is_multi = true cfg.input_path = os.join_path(vroot, 'vlib') } else if !is_path { // TODO vd.vprintln('Input "$cfg.input_path" is not a valid path. Looking for modules named "$cfg.input_path"...') mod_path := doc.lookup_module(cfg.input_path) or { eprintln('vdoc: $err') exit(1) } cfg.input_path = mod_path } return cfg } fn main() { if os.args.len < 2 || '-h' in os.args || '-help' in os.args || '--help' in os.args || os.args[1..] == ['doc', 'help'] { os.system('${os.quoted_path(vexe)} help doc') exit(0) } args := os.args[2..].clone() cfg := parse_arguments(args) if cfg.input_path.len == 0 { eprintln('vdoc: No input path found.') exit(1) } // Config is immutable from this point on mut vd := VDoc{ cfg: cfg manifest: vmod.Manifest{ repo_url: '' } } vd.vprintln('Setting output type to "$cfg.output_type"') vd.generate_docs_from_file() }