Hilbish/exec.go

617 lines
14 KiB
Go
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package main
import (
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"bytes"
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"context"
"errors"
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"os/exec"
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"fmt"
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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"io"
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"os"
"os/signal"
"path/filepath"
"runtime"
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"strings"
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"syscall"
"time"
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"hilbish/util"
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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rt "github.com/arnodel/golua/runtime"
"mvdan.cc/sh/v3/shell"
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//"github.com/yuin/gopher-lua/parse"
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"mvdan.cc/sh/v3/interp"
"mvdan.cc/sh/v3/syntax"
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"mvdan.cc/sh/v3/expand"
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)
var errNotExec = errors.New("not executable")
var errNotFound = errors.New("not found")
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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var runnerMode rt.Value = rt.StringValue("hybrid")
type streams struct {
stdout io.Writer
stderr io.Writer
stdin io.Reader
}
type execError struct{
typ string
cmd string
code int
colon bool
err error
}
func (e execError) Error() string {
return fmt.Sprintf("%s: %s", e.cmd, e.typ)
}
func (e execError) sprint() error {
sep := " "
if e.colon {
sep = ": "
}
return fmt.Errorf("hilbish: %s%s%s", e.cmd, sep, e.err.Error())
}
func isExecError(err error) (execError, bool) {
if exErr, ok := err.(execError); ok {
return exErr, true
}
fields := strings.Split(err.Error(), ": ")
knownTypes := []string{
"not-found",
"not-executable",
}
if len(fields) > 1 && contains(knownTypes, fields[1]) {
var colon bool
var e error
switch fields[1] {
case "not-found":
e = errNotFound
case "not-executable":
colon = true
e = errNotExec
}
return execError{
cmd: fields[0],
typ: fields[1],
colon: colon,
err: e,
}, true
}
return execError{}, false
}
func runInput(input string, priv bool) {
running = true
cmdString := aliases.Resolve(input)
hooks.Emit("command.preexec", input, cmdString)
rerun:
var exitCode uint8
var err error
var cont bool
// save incase it changes while prompting (For some reason)
currentRunner := runnerMode
if currentRunner.Type() == rt.StringType {
switch currentRunner.AsString() {
case "hybrid":
_, _, err = handleLua(input)
if err == nil {
cmdFinish(0, input, priv)
return
}
input, exitCode, cont, err = handleSh(input)
case "hybridRev":
_, _, _, err = handleSh(input)
if err == nil {
cmdFinish(0, input, priv)
return
}
input, exitCode, err = handleLua(input)
case "lua":
input, exitCode, err = handleLua(input)
case "sh":
input, exitCode, cont, err = handleSh(input)
}
} else {
// can only be a string or function so
var runnerErr error
input, exitCode, cont, runnerErr, err = runLuaRunner(currentRunner, input)
if err != nil {
fmt.Fprintln(os.Stderr, err)
cmdFinish(124, input, priv)
return
}
// yep, we only use `err` to check for lua eval error
// our actual error should only be a runner provided error at this point
// command not found type, etc
err = runnerErr
}
if cont {
input, err = reprompt(input)
if err == nil {
goto rerun
} else if err == io.EOF {
return
}
}
if err != nil {
if exErr, ok := isExecError(err); ok {
hooks.Emit("command." + exErr.typ, exErr.cmd)
} else {
fmt.Fprintln(os.Stderr, err)
}
}
cmdFinish(exitCode, input, priv)
}
func reprompt(input string) (string, error) {
for {
in, err := continuePrompt(strings.TrimSuffix(input, "\\"))
if err != nil {
lr.SetPrompt(fmtPrompt(prompt))
return input, err
}
if strings.HasSuffix(in, "\\") {
continue
}
return in, nil
}
}
func runLuaRunner(runr rt.Value, userInput string) (input string, exitCode uint8, continued bool, runnerErr, err error) {
term := rt.NewTerminationWith(l.MainThread().CurrentCont(), 3, false)
err = rt.Call(l.MainThread(), runr, []rt.Value{rt.StringValue(userInput)}, term)
if err != nil {
return "", 124, false, nil, err
}
var runner *rt.Table
var ok bool
runnerRet := term.Get(0)
if runner, ok = runnerRet.TryTable(); !ok {
fmt.Fprintln(os.Stderr, "runner did not return a table")
exitCode = 125
input = userInput
return
}
if code, ok := runner.Get(rt.StringValue("exitCode")).TryInt(); ok {
exitCode = uint8(code)
}
if inp, ok := runner.Get(rt.StringValue("input")).TryString(); ok {
input = inp
}
if errStr, ok := runner.Get(rt.StringValue("err")).TryString(); ok {
runnerErr = fmt.Errorf("%s", errStr)
}
if c, ok := runner.Get(rt.StringValue("continue")).TryBool(); ok {
continued = c
}
return
}
func handleLua(input string) (string, uint8, error) {
cmdString := aliases.Resolve(input)
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// First try to load input, essentially compiling to bytecode
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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chunk, err := l.CompileAndLoadLuaChunk("", []byte(cmdString), rt.TableValue(l.GlobalEnv()))
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if err != nil && noexecute {
fmt.Println(err)
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/* if lerr, ok := err.(*lua.ApiError); ok {
if perr, ok := lerr.Cause.(*parse.Error); ok {
print(perr.Pos.Line == parse.EOF)
}
}
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*/
return cmdString, 125, err
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}
// And if there's no syntax errors and -n isnt provided, run
if !noexecute {
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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if chunk != nil {
_, err = rt.Call1(l.MainThread(), rt.FunctionValue(chunk))
}
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}
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if err == nil {
return cmdString, 0, nil
}
return cmdString, 125, err
}
func handleSh(cmdString string) (input string, exitCode uint8, cont bool, runErr error) {
shRunner := hshMod.Get(rt.StringValue("runner")).AsTable().Get(rt.StringValue("sh"))
var err error
input, exitCode, cont, runErr, err = runLuaRunner(shRunner, cmdString)
if err != nil {
runErr = err
}
return
}
func execSh(cmdString string) (string, uint8, bool, error) {
_, _, err := execCommand(cmdString, nil)
if err != nil {
// If input is incomplete, start multiline prompting
if syntax.IsIncomplete(err) {
if !interactive {
return cmdString, 126, false, err
}
return cmdString, 126, true, err
} else {
if code, ok := interp.IsExitStatus(err); ok {
return cmdString, code, false, nil
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} else {
return cmdString, 126, false, err
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}
}
}
return cmdString, 0, false, nil
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}
// Run command in sh interpreter
func execCommand(cmd string, strms *streams) (io.Writer, io.Writer, error) {
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file, err := syntax.NewParser().Parse(strings.NewReader(cmd), "")
if err != nil {
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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return nil, nil, err
}
runner, _ := interp.New()
if strms == nil {
strms = &streams{}
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}
if strms.stdout == nil {
strms.stdout = os.Stdout
}
if strms.stderr == nil {
strms.stderr = os.Stderr
}
if strms.stdin == nil {
strms.stdin = os.Stdin
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}
interp.StdIO(strms.stdin, strms.stdout, strms.stderr)(runner)
buf := new(bytes.Buffer)
printer := syntax.NewPrinter()
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var bg bool
for _, stmt := range file.Stmts {
bg = false
if stmt.Background {
bg = true
printer.Print(buf, stmt.Cmd)
stmtStr := buf.String()
buf.Reset()
jobs.add(stmtStr, []string{}, "")
}
interp.ExecHandler(execHandle(bg))(runner)
err = runner.Run(context.TODO(), stmt)
if err != nil {
return strms.stdout, strms.stderr, err
}
}
return strms.stdout, strms.stderr, nil
}
func execHandle(bg bool) interp.ExecHandlerFunc {
return func(ctx context.Context, args []string) error {
_, argstring := splitInput(strings.Join(args, " "))
// i dont really like this but it works
if aliases.All()[args[0]] != "" {
for i, arg := range args {
if strings.Contains(arg, " ") {
args[i] = fmt.Sprintf("\"%s\"", arg)
}
}
_, argstring = splitInput(strings.Join(args, " "))
// If alias was found, use command alias
argstring = aliases.Resolve(argstring)
var err error
args, err = shell.Fields(argstring, nil)
if err != nil {
return err
}
}
// If command is defined in Lua then run it
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
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luacmdArgs := rt.NewTable()
for i, str := range args[1:] {
luacmdArgs.Set(rt.IntValue(int64(i + 1)), rt.StringValue(str))
}
hc := interp.HandlerCtx(ctx)
if cmd := cmds.Commands[args[0]]; cmd != nil {
stdin := newSinkInput(hc.Stdin)
stdout := newSinkOutput(hc.Stdout)
stderr := newSinkOutput(hc.Stderr)
sinks := rt.NewTable()
sinks.Set(rt.StringValue("in"), rt.UserDataValue(stdin.ud))
sinks.Set(rt.StringValue("input"), rt.UserDataValue(stdin.ud))
sinks.Set(rt.StringValue("out"), rt.UserDataValue(stdout.ud))
sinks.Set(rt.StringValue("err"), rt.UserDataValue(stderr.ud))
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t := rt.NewThread(l)
sig := make(chan os.Signal)
exit := make(chan bool)
luaexitcode := rt.IntValue(63)
var err error
go func() {
defer func() {
if r := recover(); r != nil {
exit <- true
}
}()
signal.Notify(sig, os.Interrupt)
select {
case <-sig:
t.KillContext()
return
}
}()
go func() {
luaexitcode, err = rt.Call1(t, rt.FunctionValue(cmd), rt.TableValue(luacmdArgs), rt.TableValue(sinks))
exit <- true
}()
<-exit
if err != nil {
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
2022-04-04 10:40:02 +00:00
fmt.Fprintln(os.Stderr, "Error in command:\n" + err.Error())
return interp.NewExitStatus(1)
}
var exitcode uint8
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
2022-04-04 10:40:02 +00:00
if code, ok := luaexitcode.TryInt(); ok {
exitcode = uint8(code)
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
2022-04-04 10:40:02 +00:00
} else if luaexitcode != rt.NilValue {
// deregister commander
delete(cmds.Commands, args[0])
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
2022-04-04 10:40:02 +00:00
fmt.Fprintf(os.Stderr, "Commander did not return number for exit code. %s, you're fired.\n", args[0])
}
return interp.NewExitStatus(exitcode)
}
err := lookpath(args[0])
if err == errNotExec {
return execError{
typ: "not-executable",
cmd: args[0],
code: 126,
colon: true,
err: errNotExec,
}
} else if err != nil {
return execError{
typ: "not-found",
cmd: args[0],
code: 127,
err: errNotFound,
}
}
2021-11-21 23:50:35 +00:00
2022-03-19 17:10:50 +00:00
killTimeout := 2 * time.Second
// from here is basically copy-paste of the default exec handler from
// sh/interp but with our job handling
path, err := interp.LookPathDir(hc.Dir, hc.Env, args[0])
if err != nil {
fmt.Fprintln(hc.Stderr, err)
return interp.NewExitStatus(127)
}
env := hc.Env
envList := make([]string, 0, 64)
env.Each(func(name string, vr expand.Variable) bool {
if !vr.IsSet() {
// If a variable is set globally but unset in the
// runner, we need to ensure it's not part of the final
// list. Seems like zeroing the element is enough.
// This is a linear search, but this scenario should be
// rare, and the number of variables shouldn't be large.
for i, kv := range envList {
if strings.HasPrefix(kv, name+"=") {
envList[i] = ""
}
}
}
if vr.Exported && vr.Kind == expand.String {
envList = append(envList, name+"="+vr.String())
}
return true
})
cmd := exec.Cmd{
Path: path,
Args: args,
Env: envList,
Dir: hc.Dir,
Stdin: hc.Stdin,
Stdout: hc.Stdout,
Stderr: hc.Stderr,
}
var j *job
if bg {
j = jobs.getLatest()
j.setHandle(&cmd)
err = j.start()
} else {
err = cmd.Start()
}
2022-03-19 17:10:50 +00:00
if err == nil {
if done := ctx.Done(); done != nil {
go func() {
<-done
if killTimeout <= 0 || runtime.GOOS == "windows" {
cmd.Process.Signal(os.Kill)
return
}
// TODO: don't temporarily leak this goroutine
// if the program stops itself with the
// interrupt.
go func() {
time.Sleep(killTimeout)
cmd.Process.Signal(os.Kill)
}()
cmd.Process.Signal(os.Interrupt)
}()
}
err = cmd.Wait()
}
exit := handleExecErr(err)
2022-03-19 17:10:50 +00:00
if bg {
j.exitCode = int(exit)
j.finish()
2022-03-19 17:10:50 +00:00
}
return interp.NewExitStatus(exit)
}
2021-04-03 17:13:45 +00:00
}
func handleExecErr(err error) (exit uint8) {
ctx := context.TODO()
switch x := err.(type) {
case *exec.ExitError:
// started, but errored - default to 1 if OS
// doesn't have exit statuses
if status, ok := x.Sys().(syscall.WaitStatus); ok {
if status.Signaled() {
if ctx.Err() != nil {
return
}
exit = uint8(128 + status.Signal())
return
}
exit = uint8(status.ExitStatus())
return
}
exit = 1
return
case *exec.Error:
// did not start
//fmt.Fprintf(hc.Stderr, "%v\n", err)
exit = 127
default: return
}
return
}
func lookpath(file string) error { // custom lookpath function so we know if a command is found *and* is executable
var skip []string
if runtime.GOOS == "windows" {
skip = []string{"./", "../", "~/", "C:"}
} else {
skip = []string{"./", "/", "../", "~/"}
}
for _, s := range skip {
if strings.HasPrefix(file, s) {
return findExecutable(file, false, false)
}
}
for _, dir := range filepath.SplitList(os.Getenv("PATH")) {
path := filepath.Join(dir, file)
err := findExecutable(path, true, false)
if err == errNotExec {
return err
} else if err == nil {
return nil
}
}
return os.ErrNotExist
}
2022-01-29 21:43:12 +00:00
2021-04-03 17:13:45 +00:00
func splitInput(input string) ([]string, string) {
// end my suffering
// TODO: refactor this garbage
quoted := false
startlastcmd := false
lastcmddone := false
cmdArgs := []string{}
2021-04-03 17:13:45 +00:00
sb := &strings.Builder{}
cmdstr := &strings.Builder{}
lastcmd := "" //readline.GetHistory(readline.HistorySize() - 1)
2021-04-03 17:13:45 +00:00
for _, r := range input {
if r == '"' {
// start quoted input
// this determines if other runes are replaced
quoted = !quoted
// dont add back quotes
//sb.WriteRune(r)
} else if !quoted && r == '~' {
// if not in quotes and ~ is found then make it $HOME
sb.WriteString(os.Getenv("HOME"))
} else if !quoted && r == ' ' {
// if not quoted and there's a space then add to cmdargs
cmdArgs = append(cmdArgs, sb.String())
sb.Reset()
} else if !quoted && r == '^' && startlastcmd && !lastcmddone {
// if ^ is found, isnt in quotes and is
// the second occurence of the character and is
// the first time "^^" has been used
cmdstr.WriteString(lastcmd)
sb.WriteString(lastcmd)
startlastcmd = !startlastcmd
lastcmddone = !lastcmddone
continue
} else if !quoted && r == '^' && !lastcmddone {
// if ^ is found, isnt in quotes and is the
// first time of starting "^^"
startlastcmd = !startlastcmd
continue
} else {
sb.WriteRune(r)
}
cmdstr.WriteRune(r)
}
if sb.Len() > 0 {
cmdArgs = append(cmdArgs, sb.String())
}
return cmdArgs, cmdstr.String()
}
func cmdFinish(code uint8, cmdstr string, private bool) {
util.SetField(l, hshMod, "exitCode", rt.IntValue(int64(code)))
refactor!: support lua 5.4 (#129) major rewrite which changes the library hilbish uses for it's lua vm this one implements lua 5.4, and since that's a major version bump, it's a breaking change. introduced here also is a fix for `hilbish.login` not being the right value * refactor: start work on lua 5.4 lots of commented out code ive found a go lua library which implements lua 5.4 and found an opportunity to start working on it. this commit basically removes everything and just leaves enough for the shell to be "usable" and able to start. there are no builtins or libraries (besides the `hilbish` global) * fix: call cont next in prompt function this continues execution of lua, very obvious fixes an issue with code stopping at the prompt function * fix: handle errors in user config * fix: handle panic in lua input if it is incorrect * feat: implement bait * refactor: use util funcs to run lua where possible * refactor: move arg handle function to util * feat: implement commander * feat: implement fs * feat: add hilbish module functions used by prelude * chore: use custom fork of golua * fix: make sure args to setenv are strings in prelude * feat: implement completions * chore: remove comment * feat: implement terminal * feat: implement hilbish.interval * chore: update lunacolors * chore: update golua * feat: implement aliases * feat: add input mode * feat: implement runner mode * style: use comma separated cases instead of fallthrough * feat: implement syntax highlight and hints * chore: add comments to document util functions * chore: fix dofile comment doc * refactor: make loader functions for go modules unexported * feat: implement job management * feat: add hilbish properties * feat: implement all hilbish module functions * feat: implement history interface * feat: add completion interface * feat: add module description docs * feat: implement os interface * refactor: use hlalias for add function in hilbish.alias interface * feat: make it so hilbish.run can return command output * fix: set hilbish.exitCode to last command exit code * fix(ansikit): flush on io.write * fix: deregister commander if return isnt number * feat: run script when provided path * fix: read file manually in DoFile to avoid shebang * chore: add comment for reason of unreading byte * fix: remove prelude error printing * fix: add names at chunk load for context in errors * fix: add newline at the beginning of file buffer when there is shebang this makes the line count in error messages line up properly * fix: remove extra newline after error
2022-04-04 10:40:02 +00:00
// using AsValue (to convert to lua type) on an interface which is an int
// results in it being unknown in lua .... ????
// so we allow the hook handler to take lua runtime Values
hooks.Emit("command.exit", rt.IntValue(int64(code)), cmdstr, private)
}