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