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v/v.v

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// Copyright (c) 2019 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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import (
compiler
benchmark
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os
filepath
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//time
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)
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fn main() {
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//t := time.ticks()
//defer { println(time.ticks() - t) }
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// There's no `flags` module yet, so args have to be parsed manually
args := compiler.env_vflags_and_os_args()
options := args.filter(it.starts_with('-'))
//NB: commands should be explicitly set by the command line (os.args)
// NOT passed through VFLAGS, otherwise the naked `v` invocation for
// the repl does not work when you have VFLAGS with -cc or -cflags set
// which may be surprising to v users.
stuff_after_executable := os.args[1..]
commands := stuff_after_executable.filter(!it.starts_with('-'))
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simple_tools := ['up', 'create', 'test', 'test-compiler', 'build-tools', 'build-examples', 'build-vbinaries']
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for tool in simple_tools {
if tool in commands {
compiler.launch_tool('v$tool')
return
}
}
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// Print the version and exit.
if '-v' in options || '--version' in options || 'version' in commands {
version_hash := compiler.vhash()
println('V $compiler.Version $version_hash')
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return
}
else if '-h' in options || '--help' in options || 'help' in commands {
println(compiler.help_text)
return
}
else if 'translate' in commands {
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println('Translating C to V will be available in V 0.3')
return
}
else if 'search' in commands || 'install' in commands || 'update' in commands || 'remove' in commands {
compiler.launch_tool('vpm')
return
}
else if ('get' in commands) { // obsoleted
println('use `v install` to install modules from vpm.vlang.io ')
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return
}
else if 'symlink' in commands {
compiler.create_symlink()
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return
}
// TODO quit if the v compiler is too old
// u := os.file_last_mod_unix('v')
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// If there's no tmp path with current version yet, the user must be using a pre-built package
//
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// Just fmt and exit
else if 'fmt' in commands {
compiler.vfmt(args)
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return
}
// No args? REPL
else if 'runrepl' in commands || commands.len == 0 || (args.len == 2 && args[1] == '-') {
compiler.launch_tool('vrepl')
return
}
// Generate the docs and exit
else if 'doc' in commands {
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vexe := os.executable()
vdir := os.dir(os.executable())
os.chdir(vdir)
mod := args.last()
os.system('$vexe build module vlib$os.path_separator' + args.last())
txt := os.read_file(filepath.join(compiler.v_modules_path, 'vlib', '${mod}.vh')) or {
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panic(err)
}
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println(txt)
exit(0)
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// v.gen_doc_html_for_module(args.last())
}
else {
//println('unknown command/argument\n')
//println(compiler.help_text)
}
// Construct the V object from command line arguments
mut v := compiler.new_v(args)
if v.pref.is_verbose {
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println(args)
}
if 'run' in args {
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// always recompile for now, too error prone to skip recompilation otherwise
// for example for -repl usage, especially when piping lines to v
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v.compile()
v.run_compiled_executable_and_exit()
}
mut tmark := benchmark.new_benchmark()
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if v.pref.x64 {
v.compile_x64()
} else {
v.compile()
}
if v.pref.is_stats {
tmark.stop()
println( 'compilation took: ' + tmark.total_duration().str() + 'ms')
}
if v.pref.is_test {
v.run_compiled_executable_and_exit()
}
v.finalize_compilation()
}
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