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v run: recompile and execute changed file.v just once.

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This commit is contained in:
Delyan Angelov 2019-08-06 19:04:55 +03:00 committed by Alexander Medvednikov
parent c7312d9d1c
commit d072178cef
1 changed files with 52 additions and 23 deletions
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75
compiler/main.v
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@ -189,7 +189,24 @@ fn main() {
// v.gen_doc_html_for_module(args.last())
exit(0)
}
if 'run' in args {
vsource := v.dir
vtarget := final_target_out_name( v.out_name )
if os.file_exists(vtarget) && ( os.file_last_mod_unix(vsource) <= os.file_last_mod_unix(vtarget) ) {
//println('ALREADY BUILD FROM vsource: $vsource | vtarget: $vtarget')
v.run_compiled_executable_and_exit()
}
v.compile()
v.run_compiled_executable_and_exit()
}
v.compile()
if v.pref.is_test {
v.run_compiled_executable_and_exit()
}
}
fn (v mut V) compile() {
@ -609,35 +626,47 @@ void reload_so() {
if v.pref.is_verbose {
v.log('flags=')
println(v.table.flags)
}
}
v.cc()
if v.pref.is_test || v.pref.is_run {
if v.pref.is_verbose {
println('============ running $v.out_name ============')
}
mut cmd := if v.out_name.starts_with('/') {
v.out_name
}
else {
'./' + v.out_name
}
$if windows {
cmd = v.out_name
cmd = cmd.replace('/', '\\')
}
if os.args.len > 3 {
cmd += ' ' + os.args.right(3).join(' ')
}
}
fn final_target_out_name(out_name string) string {
mut cmd := if out_name.starts_with('/') {
out_name
}
else {
'./' + out_name
}
$if windows {
cmd = out_name
cmd = cmd.replace('/', '\\')
}
return cmd
}
fn (v V) run_compiled_executable_and_exit() {
if v.pref.is_verbose {
println('============ running $v.out_name ============')
}
mut cmd := final_target_out_name(v.out_name)
if os.args.len > 3 {
cmd += ' ' + os.args.right(3).join(' ')
}
if v.pref.is_test {
ret := os.system(cmd)
if ret != 0 {
if !v.pref.is_test {
s := os.exec(cmd)
println(s)
println('failed to run the compiled program')
}
exit(1)
}
}
if v.pref.is_run {
ret := os.system(cmd)
// TODO: make the runner wrapping as transparent as possible
// (i.e. use execve when implemented). For now though, the runner
// just returns the same exit code as the child process
// (see man system, man 2 waitpid: C macro WEXITSTATUS section)
exit( ret >> 8 )
}
exit(0)
}
fn (c &V) cc_windows_cross() {