73 lines
2.1 KiB
V
73 lines
2.1 KiB
V
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module scripting
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import os
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pub fn verbose_trace(label string, message string){
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if os.getenv('VERBOSE').len > 0 {
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slabel := 'scripting.${label}'
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println('# ${slabel:30s} : $message')
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}
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}
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pub fn verbose_trace_exec_result(x os.Result) {
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if os.getenv('VERBOSE').len > 0 {
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println('# cmd.exit_code : ${x.exit_code.str()}')
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println('# cmd.output :')
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println('# ----------------------------------- #')
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mut lnum := 1
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lines := x.output.split_into_lines()
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for line in lines {
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println('# ${lnum:3d}: $line')
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lnum++
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}
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println('# ----------------------------------- #')
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}
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}
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pub fn chdir(path string) {
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verbose_trace(@FN, 'cd $path')
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os.chdir( path )
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}
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pub fn run(cmd string) string {
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verbose_trace(@FN, cmd)
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x := os.exec(cmd) or { return '' }
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verbose_trace_exec_result( x )
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if x.exit_code == 0 { return x.output }
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return ''
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}
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pub fn command_exits_with_zero_status(cmd string) bool {
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verbose_trace(@FN, cmd)
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x := os.exec(cmd) or { return false }
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verbose_trace_exec_result( x )
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if x.exit_code == 0 { return true }
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return false
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}
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pub fn tool_must_exist(toolcmd string) {
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verbose_trace(@FN, toolcmd)
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if command_exits_with_zero_status( 'type $toolcmd' ) { return }
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eprintln('Missing tool: $toolcmd')
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eprintln('Please try again after you install it.')
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exit(1)
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}
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pub fn used_tools_must_exist(tools []string) {
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for t in tools {
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tool_must_exist(t)
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}
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}
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pub fn check_v_commit_timestamp_before_self_rebuilding(v_timestamp int) {
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if v_timestamp >= 1561805697 { return }
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eprintln('##################################################################')
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eprintln('# WARNING: v self rebuilding, before 5b7a1e8 (2019-06-29 12:21) #')
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eprintln('# required the v executable to be built *inside* #')
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eprintln('# the toplevel compiler/ folder. #')
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eprintln('# #')
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eprintln('# That is not supported by this tool. #')
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eprintln('# You will have to build it manually there. #')
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eprintln('##################################################################')
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}
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