v/cmd/tools/vdoc/vdoc.v

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module main
import markdown
import os
import os.cmdline
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import time
import strings
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import sync
import runtime
import v.doc
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import v.pref
import v.vmod
import json
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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']
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)
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
is_local bool
local_filename string
local_pos int
show_loc bool // for plaintext
serve_http bool // for html
is_multi bool
is_vlib bool
is_verbose bool
include_readme bool
include_examples bool = true
open_docs bool
server_port int = 8046
inline_assets bool
no_timestamp bool
output_path string
output_type OutputType = .unset
input_path string
symbol_name string
}
//
struct Output {
mut:
path string
typ OutputType = .unset
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}
struct ParallelDoc {
d doc.Doc
out Output
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}
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('{"module_name":"$d.head.name","description":"${escape(comments)}","contents":')
jw.write(json.encode(d.contents.keys().map(d.contents[it])))
jw.write(',"generator":"vdoc","time_generated":"$d.time_generated.str()"}')
return jw.str()
}
fn (vd VDoc) gen_plaintext(d doc.Doc) string {
cfg := vd.cfg
mut pw := strings.new_builder(200)
pw.writeln('$d.head.content\n')
comments := if cfg.include_examples {
d.head.merge_comments()
} else {
d.head.merge_comments_without_examples()
}
if comments.trim_space().len > 0 && !cfg.pub_only {
pw.writeln(comments.split_into_lines().map(' ' + it).join('\n'))
}
vd.write_plaintext_content(d.contents.arr(), mut pw)
return pw.str()
}
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 {
pw.writeln(cn.content)
if cn.comments.len > 0 && !cfg.pub_only {
comments := if cfg.include_examples {
cn.merge_comments()
} else {
cn.merge_comments_without_examples()
}
pw.writeln(comments.trim_space().split_into_lines().map(' ' + it).join('\n'))
}
if cfg.show_loc {
pw.writeln('Location: $cn.file_path:$cn.pos.line\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
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// 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)
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}
name = name + match out.typ {
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.html { '.html' }
.markdown { '.md' }
.json { '.json' }
else { '.txt' }
}
return name
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}
fn (vd VDoc) work_processor(mut work sync.Channel, mut wg sync.WaitGroup) {
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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"')
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os.write_file(output_path, content)
}
wg.done()
}
fn (vd VDoc) render_parallel(out Output) {
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vjobs := runtime.nr_jobs()
mut work := sync.new_channel<ParallelDoc>(vd.docs.len)
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mut wg := sync.new_waitgroup()
for i in 0 .. vd.docs.len {
p_doc := ParallelDoc{vd.docs[i], out}
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work.push(&p_doc)
}
work.close()
wg.add(vjobs)
for _ in 0 .. vjobs {
go vd.work_processor(mut work, mut wg)
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}
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)
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docs[name] = output.trim_space()
}
vd.vprintln('Rendered: ' + docs.keys().str())
return docs
}
fn (vd VDoc) get_readme(path string) string {
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mut fname := ''
for name in ['readme', 'README'] {
if os.exists(os.join_path(path, '${name}.md')) {
fname = name
break
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}
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}
if fname == '' {
return ''
}
readme_path := os.join_path(path, '${fname}.md')
vd.vprintln('Reading README file from $readme_path')
readme_contents := os.read_file(readme_path) or { '' }
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return readme_contents
}
fn (vd VDoc) emit_generate_err(err string, errcode int) {
cfg := vd.cfg
mut err_msg := err
if errcode == 1 {
mod_list := get_modules_list(cfg.input_path, []string{})
println('Available modules:\n==================')
for mod in mod_list {
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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
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} else if os.is_dir(cfg.input_path) {
cfg.input_path
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} else {
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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
}
}
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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]
}
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time_generated: time.now()
}
}
}
dirs := if cfg.is_multi {
get_modules_list(cfg.input_path, []string{})
} else {
[cfg.input_path]
}
is_local_and_single := cfg.is_local && !cfg.is_multi
for dirpath in dirs {
mut dcs := doc.Doc{}
vd.vprintln('Generating $out.typ docs for "$dirpath"')
if is_local_and_single {
dcs = doc.generate_with_pos(dirpath, cfg.local_filename, cfg.local_pos) or {
vd.emit_generate_err(err, errcode)
exit(1)
}
} else {
dcs = doc.generate(dirpath, cfg.pub_only, true) or {
vd.emit_generate_err(err, errcode)
exit(1)
}
}
if dcs.contents.len == 0 {
continue
}
if !is_local_and_single {
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 ')
}
}
}
if !cfg.is_multi && cfg.symbol_name.len > 0 {
if cfg.symbol_name in dcs.contents {
for _, c in dcs.contents[cfg.symbol_name].children {
dcs.contents[c.name] = c
}
}
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}
}
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
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}
if cfg.serve_http {
vd.serve_html(out)
return
}
vd.vprintln('Rendering docs...')
if out.path.len == 0 || out.path == 'stdout' {
if out.typ == .html {
vd.render_static_html(cfg.serve_http, out)
}
outputs := vd.render(out)
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if outputs.len == 0 {
println('No documentation for $dirs')
} else {
first := outputs.keys()[0]
println(outputs[first])
}
} else {
if !os.is_dir(out.path) {
out.path = os.real_path('.')
}
if !os.exists(out.path) {
os.mkdir(out.path) or { panic(err) }
}
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 {
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for fname in css_js_assets {
os.rm(os.join_path(out.path, fname))
}
}
}
if out.typ == .html {
vd.render_static_html(cfg.serve_http, out)
}
vd.render_parallel(out)
println('Creating search index...')
if out.typ == .html {
vd.collect_search_index(out)
vd.render_search_index(out)
// move favicons to target directory
println('Copying 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)
}
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}
}
}
fn (vd VDoc) vprintln(str string) {
if vd.cfg.is_verbose {
println('vdoc: $str')
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}
}
fn parse_arguments(args []string) Config {
mut cfg := Config{}
for i := 0; i < args.len; i++ {
arg := args[i]
current_args := args[i..]
match arg {
'-all' {
cfg.pub_only = false
}
'-filename' {
cfg.is_local = true
cfg.local_filename = cmdline.option(current_args, '-filename', '')
i++
}
'-f' {
format := cmdline.option(current_args, '-f', '')
if format !in allowed_formats {
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allowed_str := allowed_formats.join(', ')
eprintln('vdoc: "$format" is not a valid format. Only $allowed_str are allowed.')
exit(1)
}
cfg.output_type = set_output_type_from_str(format)
i++
}
'-inline-assets' {
cfg.inline_assets = true
}
'-l' {
cfg.show_loc = 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++
}
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'-open' {
cfg.open_docs = true
}
'-pos' {
if !cfg.is_local {
eprintln('vdoc: `-pos` is only allowed with `-filename` flag.')
exit(1)
}
cfg.local_pos = cmdline.option(current_args, '-pos', '').int()
i++
}
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'-p' {
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s_port := cmdline.option(current_args, '-p', '')
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s_port_int := s_port.int()
if s_port.len == 0 {
eprintln('vdoc: No port number specified on "-p".')
exit(1)
}
if s_port != s_port_int.str() {
eprintln('vdoc: Invalid port number.')
exit(1)
}
cfg.server_port = s_port_int
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i++
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}
'-s' {
cfg.inline_assets = true
cfg.serve_http = true
if cfg.output_type == .unset {
cfg.output_type = .html
}
}
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'-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 {
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)
} $else {
cfg.input_path = cfg.input_path.replace('\\', os.path_separator)
}
is_path := cfg.input_path.ends_with('.v') || cfg.input_path.split(os.path_separator).len >
1 || cfg.input_path == '.'
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if cfg.input_path.trim_right('/') == 'vlib' {
cfg.is_vlib = true
cfg.is_multi = true
cfg.input_path = os.join_path(vroot, 'vlib')
} else if !is_path {
// TODO vd.vprintln('Input "$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: $err')
exit(1)
}
cfg.input_path = mod_path
}
return cfg
}
fn main() {
if os.args.len < 2 || '-h' in os.args || '--help' in os.args || os.args[1..] == ['doc', 'help'] {
os.system('$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()
}