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108 lines
2.6 KiB
V
108 lines
2.6 KiB
V
module main
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import os
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import flag
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import time
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import scripting
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struct CmdResult {
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mut:
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runs int
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outputs []string
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timings []int
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}
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struct Context {
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mut:
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count int
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warmup int
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show_help bool
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show_result bool
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verbose bool
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commands []string
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results []CmdResult
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}
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fn main(){
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mut context := Context{}
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context.parse_options()
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context.run()
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context.show_diff_summary()
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context.show_stddev()
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}
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fn (mut context Context) parse_options() {
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mut fp := flag.new_flag_parser(os.args)
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fp.application(os.file_name(os.executable()))
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fp.version('0.0.1')
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fp.description('Repeat command(s) and collect statistics. NB: you have to quote each command.')
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fp.arguments_description('CMD1 CMD2 ...')
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fp.skip_executable()
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fp.limit_free_args_to_at_least(1)
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context.count = fp.int('count', `c`, 10, 'Repetition count')
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context.warmup = fp.int('warmup', `w`, 2, 'Warmup runs')
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context.show_help = fp.bool('help', `h`, false, 'Show this help screen.')
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context.verbose = fp.bool('verbose', `v`, false, 'Be more verbose.')
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context.show_result = fp.bool('result', `r`, true, 'Show the result too.')
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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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if context.verbose {
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scripting.set_verbose(true)
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}
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context.commands = fp.finalize() or {
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eprintln('Error: ' + err)
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exit(1)
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}
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context.results = []CmdResult{ len: context.commands.len, init: CmdResult{} }
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}
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fn (mut context Context) run() {
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print('')
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for icmd, cmd in context.commands {
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mut runs := 0
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mut duration := 0
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mut sum := 0
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mut oldres := ''
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if context.warmup > 0 {
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for i in 1..context.warmup+1 {
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print('\r warming up run: ${i:4}/${context.warmup:-4} for ${cmd:-50s} took ${duration:6} ms ...')
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mut sw := time.new_stopwatch({})
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os.exec(cmd) or { continue }
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duration = int(sw.elapsed().milliseconds())
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}
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}
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for i in 1..(context.count+1) {
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avg := f64(sum)/f64(i)
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print('\r average: ${avg:9.3f} ms | run: ${i:4}/${context.count:-4} | took ${duration:6} ms | cmd: ${cmd:-50s}')
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if context.show_result {
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print(' | result: ${oldres:-s}')
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}
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mut sw := time.new_stopwatch({})
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res := os.exec(cmd) or {
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eprintln('${i:10} failed runnning cmd: $cmd')
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continue
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}
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duration = int(sw.elapsed().milliseconds())
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if res.exit_code != 0 {
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eprintln('${i:10} non 0 exit code for cmd: $cmd')
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continue
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}
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context.results[icmd].outputs << res.output
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context.results[icmd].timings << duration
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sum += duration
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runs++
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oldres = res.output.replace('\n', ' ')
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}
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context.results[icmd].runs = runs
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println('')
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}
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}
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fn (mut context Context) show_diff_summary() {
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// TODO
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}
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fn (mut context Context) show_stddev() {
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// TODO
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}
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