45 lines
		
	
	
		
			936 B
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			936 B
		
	
	
	
		
			V
		
	
	
| module main
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| 
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| import (
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| 	os
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| 	v.pref
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| )
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| 
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| fn main() {
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| 	vexe := pref.vexe_path()
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| 	vroot := os.dir(vexe)
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| 	os.chdir(vroot)
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| 
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| 	mut cmd := '$vexe -o v2 cmd/v'
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| 	if os.args.len >= 3 && os.args[2] == '-prod' {
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| 		cmd = '$vexe -o v2 -prod cmd/v'
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| 		println('V self compiling (-prod mode)...')
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| 	}
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| 	else {
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| 		println('V self compiling...')
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| 	}
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| 
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| 	result := os.exec(cmd) or { panic(err) }
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| 	if result.exit_code != 0 {
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| 		mut err := 'Permission denied'
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| 		if !result.output.contains('Permission denied') {
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| 			err = '\n$result.output'
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| 		}
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| 		eprintln('cannot compile to ‘$vroot: $err')
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| 		exit(1)
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| 	}
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| 	if result.output.len > 0 {
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| 		println(result.output)
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| 	}
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| 
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| 	v_file := if os.user_os() == 'windows' { 'v.exe' } else { 'v' }
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| 	v2_file := if os.user_os() == 'windows' { 'v2.exe' } else { 'v2' }
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| 	bak_file := if os.user_os() == 'windows' { 'v_old.exe' } else { 'v_old' }
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| 
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| 	if os.exists(bak_file) {
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| 		os.rm(bak_file)
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| 	}
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| 	os.mv(v_file, bak_file)
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| 	os.mv(v2_file, v_file)
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| }
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