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package prep
// This is where the actual autocomplete happens
// lots of the fun magic is in here
import (
"errors"
"os"
"time"
"go.wit.com/dev/alexflint/arg"
"go.wit.com/lib/config"
durationpb "google.golang.org/protobuf/types/known/durationpb"
timestamppb "google.golang.org/protobuf/types/known/timestamppb"
)
func Autocomplete(dest any) *Auto {
myAuto = new(AutoArgs) // todo: redo this
findAppInfo(dest) // parses back to main() for argv info
if myAuto.guiFunc != nil {
// register gui args
myAuto.guiFunc()
// log.Info("gui init")
} else {
// log.Info("no gui init")
}
// load the argv history from the protobuf file
all := NewAutos()
err := config.LoadCache(all, "argv", myAuto.appName) // loads ~/.cache/argv/forge.pb
if err != nil {
// there is no history. do something here(?)
}
pb := parseArgv(myAuto.appName) // parses os.Args into a protobuf
// set the start time of the binary
now := time.Now()
pb.Ctime = timestamppb.New(now)
// try to register bash args for go-args
arg.Register(&argBash)
// arg.Register(&argGui)
// user is trying to setup bash or zsh autocomplete
// --bash or --zsh is the first os.Args
if pb.SetupAuto {
// --bash was passed. try to configure bash-completion
MakeAutocompleteFiles(myAuto.appName)
// never forget to run this our you will hate yourself and the choices you have made
os.Exit(0)
}
// not autocompleting. return go-arg & the application
if !pb.IsAuto {
// save the pb & history
all.Clone(pb)
errors.Join(err, all.Save())
myAuto.pp = arg.MustParse(dest)
myAuto.err = err
return pb
}
// EVERYTHING PAST HERE IS FOR AUTOCOMPLETE
// everything sent to STDOUT and STDERR matters past this point
// set the duration since the last auto complete
// find the last entry. this is dumb way to do it
var last *Auto
for found := range all.IterAll() {
last = found
}
dur := time.Since(last.Ctime.AsTime())
pb.Duration = durationpb.New(dur)
if pb.Debug {
// dump debug info
pb.PrintDebug()
all.PrintHistory()
}
// roll the autocomplete file
if all.Len() > 15 {
pb.Debugf("DEBUG: trim() history is over 100 len=%d vs new=%d", all.Len(), all.Len()-90)
all.Autos = all.Autos[all.Len()-10:]
// newall.Autos = all.Autos[0:10]
// for _, found := range all.Autos[0:10] {
// newall.Append(found)
// }
}
pb.Debugf("WRITE DEBUG: write PB='%s' len(pb)=%d config.Save().err=%v", all.Filename, all.Len(), err)
// turn on debugging if duration < 200 milliseconds
dur = pb.Duration.AsDuration()
if dur < time.Millisecond*200 {
pb.Debug = true
pb.Fast = true
pb.Fastcmd = pb.Cmd
if last.Fast {
if pb.Fastcmd == last.Fastcmd {
// do the smart something here
}
}
}
flags := []string{}
for _, s := range pb.Argv {
if s == "--autodebug" {
continue
}
flags = append(flags, s)
}
// use go-args to parse the structs so we can use them here
myAuto.pp, err = arg.ParseFlags(flags, dest)
if err != nil {
// users has command line arguments that won't parse with go-args
pb.Debugf("DEBUG: Parse error: %v flags(%v)", err, flags)
}
if myAuto.pp == nil {
pb.Debugf("DEBUG: myAuto.pp == nil after ParseFlags()")
} else {
// pb.Debugf("DEBUG: myAuto.pp is ok after ParseFlags()")
}
// save now. this is near the end probably
all.Clone(pb)
errors.Join(err, all.Save())
// this is a work in progress
if pb.Last == "--gui" {
pb.Debugf("DEBUG: last=%s found --gui", pb.Last)
pb.Autocomplete2("andlabs gogui")
os.Exit(0)
} else {
// pb.Debugf("DEBUG: NO MATCH last='%s' found key '%s' = %s", pb.Last, key, val)
}
if pb.Fast {
if last.Fast {
os.Exit(0)
} else {
// this means the user is pressing tab. no longer doing stderr
if pb.Cmd == "" {
myAuto.pp.WriteHelp(os.Stderr)
} else {
myAuto.pp.WriteHelpForSubcommand(os.Stderr, pb.Cmd)
}
}
} else {
}
if myAuto.autoFunc == nil {
pb.SubCommand(pb.Argv...)
} else {
myAuto.autoFunc(pb) // run the autocomplete function the user made for their application
}
if pb.Debug {
// TODO:
// check here to see if there was any completion text sent
// if not, send "reset bash newline\n" to cause bash to redraw PS1 for the user
}
os.Exit(0)
return nil
}
|
