v/cmd/tools/vcreate.v

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// Copyright (c) 2019-2022 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
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module main
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// This module follows a similar convention to Rust: `init` makes the
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// structure of the program in the _current_ directory, while `new`
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// makes the program structure in a _sub_ directory. Besides that, the
// functionality is essentially the same.
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import os
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struct Create {
mut:
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name string
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description string
version string
license string
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}
fn cerror(e string) {
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eprintln('\nerror: $e')
}
fn check_name(name string) string {
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if name.trim_space().len == 0 {
cerror('project name cannot be empty')
exit(1)
}
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if name.is_title() {
mut cname := name.to_lower()
if cname.contains(' ') {
cname = cname.replace(' ', '_')
}
eprintln('warning: the project name cannot be capitalized, the name will be changed to `$cname`')
return cname
}
if name.contains(' ') {
cname := name.replace(' ', '_')
eprintln('warning: the project name cannot contain spaces, the name will be changed to `$cname`')
return cname
}
return name
}
fn vmod_content(c Create) string {
return "Module {
name: '$c.name'
description: '$c.description'
version: '$c.version'
license: '$c.license'
dependencies: []
}
"
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}
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fn main_content() string {
return "module main
fn main() {
println('Hello World!')
}
"
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}
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fn gen_gitignore(name string) string {
return '# Binaries for programs and plugins
main
$name
*.exe
*.exe~
*.so
*.dylib
*.dll
vls.log
'
}
fn gitattributes_content() string {
return '*.v linguist-language=V text=auto eol=lf
*.vv linguist-language=V text=auto eol=lf
*.vsh linguist-language=V text=auto eol=lf
**/v.mod linguist-language=V text=auto eol=lf
'
}
fn editorconfig_content() string {
return '[*]
charset = utf-8
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true
[*.v]
indent_style = tab
indent_size = 4
'
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}
fn (c &Create) write_vmod(new bool) {
vmod_path := if new { '$c.name/v.mod' } else { 'v.mod' }
os.write_file(vmod_path, vmod_content(c)) or { panic(err) }
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}
fn (c &Create) write_main(new bool) {
if !new && (os.exists('${c.name}.v') || os.exists('src/${c.name}.v')) {
return
}
main_path := if new { '$c.name/${c.name}.v' } else { '${c.name}.v' }
os.write_file(main_path, main_content()) or { panic(err) }
}
fn (c &Create) write_gitattributes(new bool) {
gitattributes_path := if new { '$c.name/.gitattributes' } else { '.gitattributes' }
if !new && os.exists(gitattributes_path) {
return
}
os.write_file(gitattributes_path, gitattributes_content()) or { panic(err) }
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}
fn (c &Create) write_editorconfig(new bool) {
editorconfig_path := if new { '$c.name/.editorconfig' } else { '.editorconfig' }
if !new && os.exists(editorconfig_path) {
return
}
os.write_file(editorconfig_path, editorconfig_content()) or { panic(err) }
}
fn (c &Create) create_git_repo(dir string) {
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// Create Git Repo and .gitignore file
if !os.is_dir('$dir/.git') {
res := os.execute('git init $dir')
if res.exit_code != 0 {
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cerror('Unable to create git repo')
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exit(4)
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}
}
gitignore_path := '$dir/.gitignore'
if !os.exists(gitignore_path) {
os.write_file(gitignore_path, gen_gitignore(c.name)) or {}
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}
}
fn create(args []string) {
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mut c := Create{}
c.name = check_name(if args.len > 0 { args[0] } else { os.input('Input your project name: ') })
if c.name == '' {
cerror('project name cannot be empty')
exit(1)
}
if c.name.contains('-') {
cerror('"$c.name" should not contain hyphens')
exit(1)
}
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if os.is_dir(c.name) {
cerror('$c.name folder already exists')
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exit(3)
}
c.description = if args.len > 1 { args[1] } else { os.input('Input your project description: ') }
default_version := '0.0.0'
c.version = os.input('Input your project version: ($default_version) ')
if c.version == '' {
c.version = default_version
}
default_license := os.getenv_opt('VLICENSE') or { 'MIT' }
c.license = os.input('Input your project license: ($default_license) ')
if c.license == '' {
c.license = default_license
}
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println('Initialising ...')
os.mkdir(c.name) or { panic(err) }
c.write_vmod(true)
c.write_main(true)
c.write_gitattributes(true)
c.write_editorconfig(true)
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c.create_git_repo(c.name)
}
fn init_project() {
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mut c := Create{}
c.name = check_name(os.file_name(os.getwd()))
if !os.exists('v.mod') {
c.description = ''
c.write_vmod(false)
println('Change the description of your project in `v.mod`')
}
c.write_main(false)
c.write_gitattributes(false)
c.write_editorconfig(false)
c.create_git_repo('.')
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}
fn main() {
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cmd := os.args[1]
match cmd {
'new' {
create(os.args[2..])
}
'init' {
init_project()
}
else {
cerror('unknown command: $cmd')
exit(1)
}
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}
println('Complete!')
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}