95 lines
2.1 KiB
V
95 lines
2.1 KiB
V
module main
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import os
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import flag
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const (
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tool_version = '0.0.3'
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tool_description = 'Converts a list of arbitrary files into a single v module file.'
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)
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struct Context {
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mut:
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files []string
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prefix string
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show_help bool
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module_name string
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}
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fn (context Context) header() {
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println('module ${context.module_name}')
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println('')
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allfiles := context.files.join(' ')
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mut options := []string
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if context.prefix.len > 0 {
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options << '-p ${context.prefix}'
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}
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if context.module_name.len > 0 {
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options << '-m ${context.module_name}'
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}
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soptions := options.join(' ')
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println('// File generated by:')
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println('// v bin2v ${allfiles} ${soptions}')
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println('// Please, do not edit this file.')
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println('// Your changes may be overwritten.')
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println('')
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println('const (')
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}
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fn (context Context) footer() {
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println(')')
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}
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fn (context Context) file2v(file string) {
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fname := os.file_name(file)
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fname_no_dots := fname.replace('.', '_')
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byte_name := '${context.prefix}${fname_no_dots}'
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fbytes := os.read_bytes(file) or {
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eprintln('Error: $err')
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return
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}
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fbyte := fbytes[0]
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println(' ${byte_name}_len = ${fbytes.len}')
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print(' ${byte_name} = [ byte(${fbyte}), \n ')
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for i := 1; i < fbytes.len; i++ {
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b := int(fbytes[i]).str()
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print('${b:4s}, ')
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if 0 == i % 16 {
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print('\n ')
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}
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}
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println('\n]!!')
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println('')
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}
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fn main() {
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mut context := Context{}
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mut fp := flag.new_flag_parser(os.args[1..])
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fp.application('v bin2v')
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fp.version(tool_version)
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fp.description(tool_description)
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fp.arguments_description('FILE [FILE]...')
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context.show_help = fp.bool('help', `h`, false, 'Show this help screen.')
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context.module_name = fp.string('module', `m`, 'binary', 'Name of the generated module.\n')
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context.prefix = fp.string('prefix', `p`, '', 'A prefix put before each resource name.\n')
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if context.show_help {
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println(fp.usage())
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exit(0)
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}
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files := fp.finalize() or {
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eprintln('Error: ' + err)
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exit(1)
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}
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real_files := files.filter(it != 'bin2v')
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if real_files.len == 0 {
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println(fp.usage())
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exit(0)
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}
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context.files = real_files
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context.header()
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for file in real_files {
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context.file2v(file)
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}
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context.footer()
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}
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