504 lines
12 KiB
V
504 lines
12 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module main
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import os
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import os.cmdline
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import rand
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import term
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import vhelp
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import v.pref
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import regex
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const (
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too_long_line_length = 100
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term_colors = term.can_show_color_on_stderr()
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hide_warnings = '-hide-warnings' in os.args || '-w' in os.args
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show_progress = os.getenv('GITHUB_JOB') == '' && '-silent' !in os.args
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non_option_args = cmdline.only_non_options(os.args[2..])
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)
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struct CheckResult {
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pub mut:
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warnings int
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errors int
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oks int
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}
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fn (v1 CheckResult) + (v2 CheckResult) CheckResult {
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return CheckResult{
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warnings: v1.warnings + v2.warnings
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errors: v1.errors + v2.errors
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oks: v1.oks + v2.oks
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}
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}
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fn main() {
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if non_option_args.len == 0 || '-help' in os.args {
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vhelp.show_topic('check-md')
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exit(0)
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}
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if '-all' in os.args {
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println('´-all´ flag is deprecated. Please use ´v check-md .´ instead.')
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exit(1)
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}
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if show_progress {
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// this is intended to be replaced by the progress lines
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println('')
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}
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mut files_paths := non_option_args.clone()
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mut res := CheckResult{}
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if term_colors {
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os.setenv('VCOLORS', 'always', true)
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}
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for i := 0; i < files_paths.len; i++ {
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file_path := files_paths[i]
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if os.is_dir(file_path) {
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files_paths << md_file_paths(file_path)
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continue
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}
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real_path := os.real_path(file_path)
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lines := os.read_lines(real_path) or {
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println('"$file_path" does not exist')
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res.warnings++
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continue
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}
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mut mdfile := MDFile{
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path: file_path
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lines: lines
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}
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res += mdfile.check()
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}
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if res.errors == 0 && show_progress {
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term.clear_previous_line()
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}
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if res.warnings > 0 || res.errors > 0 || res.oks > 0 {
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println('\nWarnings: $res.warnings | Errors: $res.errors | OKs: $res.oks')
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}
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if res.errors > 0 {
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exit(1)
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}
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}
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fn md_file_paths(dir string) []string {
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mut files_to_check := []string{}
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md_files := os.walk_ext(dir, '.md')
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for file in md_files {
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if file.contains_any_substr(['/thirdparty/', 'CHANGELOG']) {
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continue
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}
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files_to_check << file
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}
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return files_to_check
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}
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fn wprintln(s string) {
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if !hide_warnings {
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println(s)
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}
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}
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fn ftext(s string, cb fn (string) string) string {
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if term_colors {
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return cb(s)
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}
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return s
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}
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fn btext(s string) string {
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return ftext(s, term.bold)
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}
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fn mtext(s string) string {
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return ftext(s, term.magenta)
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}
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fn rtext(s string) string {
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return ftext(s, term.red)
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}
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fn wline(file_path string, lnumber int, column int, message string) string {
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return btext('$file_path:${lnumber + 1}:${column + 1}:') + btext(mtext(' warn:')) +
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rtext(' $message')
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}
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fn eline(file_path string, lnumber int, column int, message string) string {
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return btext('$file_path:${lnumber + 1}:${column + 1}:') + btext(rtext(' error: $message'))
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}
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const (
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default_command = 'compile'
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)
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struct VCodeExample {
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mut:
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text []string
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command string
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sline int
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eline int
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}
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enum MDFileParserState {
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markdown
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vexample
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codeblock
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}
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struct MDFile {
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path string
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lines []string
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mut:
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examples []VCodeExample
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current VCodeExample
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state MDFileParserState = .markdown
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}
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fn (mut f MDFile) progress(message string) {
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if show_progress {
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term.clear_previous_line()
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println('File: ${f.path:-30s}, Lines: ${f.lines.len:5}, $message')
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}
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}
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fn (mut f MDFile) check() CheckResult {
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mut res := CheckResult{}
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mut anchor_data := AnchorData{}
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for j, line in f.lines {
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// f.progress('line: $j')
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if line.len > too_long_line_length {
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if f.state == .vexample {
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wprintln(wline(f.path, j, line.len, 'long V example line'))
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wprintln(line)
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res.warnings++
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} else if f.state == .codeblock {
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wprintln(wline(f.path, j, line.len, 'long code block line'))
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wprintln(line)
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res.warnings++
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} else if line.starts_with('|') {
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wprintln(wline(f.path, j, line.len, 'long table'))
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wprintln(line)
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res.warnings++
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} else if line.contains('https') {
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wprintln(wline(f.path, j, line.len, 'long link'))
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wprintln(line)
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res.warnings++
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} else {
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eprintln(eline(f.path, j, line.len, 'line too long'))
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eprintln(line)
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res.errors++
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}
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}
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if f.state == .markdown {
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anchor_data.add_links(j, line)
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anchor_data.add_link_targets(j, line)
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}
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f.parse_line(j, line)
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}
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anchor_data.check_link_target_match(f.path, mut res)
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res += f.check_examples()
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return res
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}
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fn (mut f MDFile) parse_line(lnumber int, line string) {
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if line.starts_with('```v') {
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if f.state == .markdown {
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f.state = .vexample
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mut command := line.replace('```v', '').trim_space()
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if command == '' {
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command = default_command
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} else if command == 'nofmt' {
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command += ' $default_command'
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}
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f.current = VCodeExample{
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sline: lnumber
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command: command
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}
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}
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return
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}
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if line.starts_with('```') {
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match f.state {
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.vexample {
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f.state = .markdown
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f.current.eline = lnumber
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f.examples << f.current
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f.current = VCodeExample{}
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return
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}
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.codeblock {
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f.state = .markdown
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return
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}
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.markdown {
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f.state = .codeblock
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return
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}
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}
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}
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if f.state == .vexample {
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f.current.text << line
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}
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}
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struct Headline {
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line int
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lable string
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level int
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}
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struct Anchor {
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line int
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}
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type AnchorTarget = Anchor | Headline
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struct AnchorLink {
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line int
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lable string
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}
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struct AnchorData {
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mut:
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links map[string][]AnchorLink
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anchors map[string][]AnchorTarget
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}
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fn (mut ad AnchorData) add_links(line_number int, line string) {
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query := r'\[(?P<lable>[^\]]+)\]\(\s*#(?P<link>[a-z\-]+)\)'
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mut re := regex.regex_opt(query) or { panic(err) }
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res := re.find_all_str(line)
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for elem in res {
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re.match_string(elem)
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link := re.get_group_by_name(elem, 'link')
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ad.links[link] << AnchorLink{
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line: line_number
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lable: re.get_group_by_name(elem, 'lable')
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}
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}
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}
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fn (mut ad AnchorData) add_link_targets(line_number int, line string) {
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if line.trim_space().starts_with('#') {
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if headline_start_pos := line.index(' ') {
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headline := line.substr(headline_start_pos + 1, line.len)
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link := create_ref_link(headline)
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ad.anchors[link] << Headline{
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line: line_number
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lable: headline
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level: headline_start_pos
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}
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}
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} else {
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query := r'<a\s*id=["\'](?P<link>[a-z\-]+)["\']\s*/>'
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mut re := regex.regex_opt(query) or { panic(err) }
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res := re.find_all_str(line)
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for elem in res {
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re.match_string(elem)
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link := re.get_group_by_name(elem, 'link')
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ad.anchors[link] << Anchor{
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line: line_number
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}
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}
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}
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}
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fn (mut ad AnchorData) check_link_target_match(fpath string, mut res CheckResult) {
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mut checked_headlines := []string{}
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mut found_error_warning := false
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for link, linkdata in ad.links {
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if link in ad.anchors {
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checked_headlines << link
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if ad.anchors[link].len > 1 {
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found_error_warning = true
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res.errors++
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for anchordata in ad.anchors[link] {
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eprintln(eline(fpath, anchordata.line, 0, 'multiple link targets of existing link (#$link)'))
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}
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}
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} else {
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found_error_warning = true
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res.errors++
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for brokenlink in linkdata {
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eprintln(eline(fpath, brokenlink.line, 0, 'no link target found for existing link [$brokenlink.lable](#$link)'))
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}
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}
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}
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for link, anchor_lists in ad.anchors {
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if !(link in checked_headlines) {
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if anchor_lists.len > 1 {
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for anchor in anchor_lists {
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line := match anchor {
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Headline {
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anchor.line
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}
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Anchor {
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anchor.line
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}
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}
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wprintln(wline(fpath, line, 0, 'multiple link target for non existing link (#$link)'))
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found_error_warning = true
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res.warnings++
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}
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}
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}
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}
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if found_error_warning {
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eprintln('') // fix suppressed last error output
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}
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}
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fn create_ref_link(s string) string {
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query_remove := r'[^a-z \-]'
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mut re := regex.regex_opt(query_remove) or { panic(err) }
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return re.replace_simple(s.to_lower(), '').replace(' ', '-')
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}
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fn (mut f MDFile) debug() {
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for e in f.examples {
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eprintln('f.path: $f.path | example: $e')
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}
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}
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fn cmdexecute(cmd string) int {
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res := os.execute(cmd)
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if res.exit_code < 0 {
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return 1
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}
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if res.exit_code != 0 {
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eprint(res.output)
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}
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return res.exit_code
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}
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fn silent_cmdexecute(cmd string) int {
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res := os.execute(cmd)
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return res.exit_code
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}
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fn get_fmt_exit_code(vfile string, vexe string) int {
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return silent_cmdexecute('"$vexe" fmt -verify $vfile')
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}
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fn (mut f MDFile) check_examples() CheckResult {
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mut errors := 0
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mut oks := 0
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vexe := pref.vexe_path()
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for e in f.examples {
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if e.command == 'ignore' {
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continue
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}
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if e.command == 'wip' {
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continue
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}
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fname := os.base(f.path).replace('.md', '_md')
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uid := rand.ulid()
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vfile := os.join_path(os.temp_dir(), 'check_${fname}_example_${e.sline}__${e.eline}__${uid}.v')
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mut should_cleanup_vfile := true
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// eprintln('>>> checking example $vfile ...')
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vcontent := e.text.join('\n') + '\n'
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os.write_file(vfile, vcontent) or { panic(err) }
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mut acommands := e.command.split(' ')
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nofmt := 'nofmt' in acommands
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for command in acommands {
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f.progress('example from $e.sline to $e.eline, command: $command')
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fmt_res := if nofmt { 0 } else { get_fmt_exit_code(vfile, vexe) }
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match command {
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'compile' {
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res := cmdexecute('"$vexe" -w -Wfatal-errors -o x.c $vfile')
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os.rm('x.c') or {}
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if res != 0 || fmt_res != 0 {
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if res != 0 {
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eprintln(eline(f.path, e.sline, 0, 'example failed to compile'))
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}
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if fmt_res != 0 {
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eprintln(eline(f.path, e.sline, 0, 'example is not formatted'))
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}
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eprintln(vcontent)
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should_cleanup_vfile = false
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errors++
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continue
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}
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oks++
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}
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'live' {
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res := cmdexecute('"$vexe" -w -Wfatal-errors -live -o x.c $vfile')
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if res != 0 || fmt_res != 0 {
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if res != 0 {
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eprintln(eline(f.path, e.sline, 0, 'example failed to compile with -live'))
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}
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if fmt_res != 0 {
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eprintln(eline(f.path, e.sline, 0, 'example is not formatted'))
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}
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eprintln(vcontent)
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should_cleanup_vfile = false
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errors++
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continue
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}
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oks++
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}
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'failcompile' {
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res := silent_cmdexecute('"$vexe" -w -Wfatal-errors -o x.c $vfile')
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os.rm('x.c') or {}
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if res == 0 || fmt_res != 0 {
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if res == 0 {
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eprintln(eline(f.path, e.sline, 0, '`failcompile` example compiled'))
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}
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if fmt_res != 0 {
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eprintln(eline(f.path, e.sline, 0, 'example is not formatted'))
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}
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eprintln(vcontent)
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should_cleanup_vfile = false
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errors++
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continue
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}
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oks++
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}
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'oksyntax' {
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res := cmdexecute('"$vexe" -w -Wfatal-errors -check-syntax $vfile')
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if res != 0 || fmt_res != 0 {
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if res != 0 {
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eprintln(eline(f.path, e.sline, 0, '`oksyntax` example with invalid syntax'))
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}
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if fmt_res != 0 {
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eprintln(eline(f.path, e.sline, 0, '`oksyntax` example is not formatted'))
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}
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eprintln(vcontent)
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should_cleanup_vfile = false
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errors++
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continue
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}
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oks++
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}
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'badsyntax' {
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res := silent_cmdexecute('"$vexe" -w -Wfatal-errors -check-syntax $vfile')
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if res == 0 {
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eprintln(eline(f.path, e.sline, 0, '`badsyntax` example can be parsed fine'))
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eprintln(vcontent)
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should_cleanup_vfile = false
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errors++
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continue
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}
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oks++
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}
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'nofmt' {}
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else {
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eprintln(eline(f.path, e.sline, 0, 'unrecognized command: "$command", use one of: wip/ignore/compile/failcompile/oksyntax/badsyntax'))
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should_cleanup_vfile = false
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errors++
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}
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}
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}
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if should_cleanup_vfile {
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os.rm(vfile) or { panic(err) }
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}
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}
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return CheckResult{
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errors: errors
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oks: oks
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}
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}
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