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Hilbish
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Merge 56ba00e213 into 4743222044

sammyette 2024-12-29 19:25:46 +00:00 committed by GitHub
parent 4743222044 56ba00e213
commit 7b1f1c40c0
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21 changed files with 728 additions and 530 deletions
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20
api.go
View File

@ -13,10 +13,9 @@
package main
import (
"bytes"
//"bytes"
"errors"
"fmt"
"io"
"os"
"os/exec"
"runtime"
@ -28,9 +27,9 @@ import (
rt "github.com/arnodel/golua/runtime"
"github.com/arnodel/golua/lib/packagelib"
"github.com/arnodel/golua/lib/iolib"
//"github.com/arnodel/golua/lib/iolib"
"github.com/maxlandon/readline"
"mvdan.cc/sh/v3/interp"
//"mvdan.cc/sh/v3/interp"
)
var exports = map[string]util.LuaExport{
@ -49,7 +48,7 @@ var exports = map[string]util.LuaExport{
"inputMode": {hlinputMode, 1, false},
"interval": {hlinterval, 2, false},
"read": {hlread, 1, false},
"run": {hlrun, 1, true},
//"run": {hlrun, 1, true},
"timeout": {hltimeout, 2, false},
"which": {hlwhich, 1, false},
}
@ -154,6 +153,7 @@ func unsetVimMode() {
util.SetField(l, hshMod, "vimMode", rt.NilValue)
}
/*
func handleStream(v rt.Value, strms *streams, errStream bool) error {
ud, ok := v.TryUserData()
if !ok {
@ -182,6 +182,7 @@ func handleStream(v rt.Value, strms *streams, errStream bool) error {
return nil
}
*/
// run(cmd, streams) -> exitCode (number), stdout (string), stderr (string)
// Runs `cmd` in Hilbish's shell script interpreter.
@ -210,6 +211,7 @@ hilbish.run('wc -l', {
})
*/
// #example
/*
func hlrun(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// TODO: ON BREAKING RELEASE, DO NOT ACCEPT `streams` AS A BOOLEAN.
if err := c.Check1Arg(); err != nil {
@ -288,6 +290,7 @@ func hlrun(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
return c.PushingNext(t.Runtime, rt.IntValue(int64(exitcode)), rt.StringValue(stdoutStr), rt.StringValue(stderrStr)), nil
}
*/
// cwd() -> string
// Returns the current directory of the shell.
@ -508,7 +511,7 @@ func hlexec(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
}
cmdArgs, _ := splitInput(cmd)
if runtime.GOOS != "windows" {
cmdPath, err := exec.LookPath(cmdArgs[0])
cmdPath, err := util.LookPath(cmdArgs[0])
if err != nil {
fmt.Println(err)
// if we get here, cmdPath will be nothing
@ -706,7 +709,7 @@ func hlwhich(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
return c.PushingNext1(t.Runtime, rt.StringValue(cmd)), nil
}
path, err := exec.LookPath(cmd)
path, err := util.LookPath(cmd)
if err != nil {
return c.Next(), nil
}
@ -743,6 +746,8 @@ func hlinputMode(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
}
// runnerMode(mode)
// **NOTE: This function is deprecated and will be removed in 3.0**
// Use `hilbish.runner.setCurrent` instead.
// Sets the execution/runner mode for interactive Hilbish.
// This determines whether Hilbish wll try to run input as Lua
// and/or sh or only do one of either.
@ -752,6 +757,7 @@ func hlinputMode(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// Read [about runner mode](../features/runner-mode) for more information.
// #param mode string|function
func hlrunnerMode(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// TODO: Reimplement in Lua
if err := c.Check1Arg(); err != nil {
return nil, err
}

4
complete.go
View File

@ -98,7 +98,7 @@ func binaryComplete(query, ctx string, fields []string) ([]string, string) {
if len(fileCompletions) != 0 {
for _, f := range fileCompletions {
fullPath, _ := filepath.Abs(util.ExpandHome(query + strings.TrimPrefix(f, filePref)))
if err := findExecutable(escapeInvertReplaer.Replace(fullPath), false, true); err != nil {
if err := util.FindExecutable(escapeInvertReplaer.Replace(fullPath), false, true); err != nil {
continue
}
completions = append(completions, f)
@ -115,7 +115,7 @@ func binaryComplete(query, ctx string, fields []string) ([]string, string) {
// get basename from matches
for _, match := range matches {
// check if we have execute permissions for our match
err := findExecutable(match, true, false)
err := util.FindExecutable(match, true, false)
if err != nil {
continue
}

28
docs/hooks/hilbish.md
View File

@ -43,5 +43,29 @@ The notification. The properties are defined in the link above.
<hr>
+ `hilbish.vimAction` -> actionName, args > Sent when the user does a "vim action," being something
like yanking or pasting text. See `doc vim-mode actions` for more info.
## hilbish.cd
Sent when the current directory of the shell is changed (via interactive means.)
If you are implementing a custom command that changes the directory of the shell,
you must throw this hook manually for correctness.
#### Variables
`string` **`path`**
Absolute path of the directory that was changed to.
`string` **`oldPath`**
Absolute path of the directory Hilbish *was* in.
<hr>
## hilbish.vimAction
Sent when the user does a "vim action," being something like yanking or pasting text.
See `doc vim-mode actions` for more info.
#### Variables
`string` **`actionName`**
Absolute path of the directory that was changed to.
`table` **`args`**
Table of args relating to the Vim action.
<hr>

431
exec.go
View File

@ -1,141 +1,45 @@
package main
import (
"bytes"
"context"
"errors"
"os/exec"
"fmt"
"io"
"os"
"os/signal"
"path/filepath"
"runtime"
"strings"
"syscall"
"time"
"hilbish/util"
//herror "hilbish/errors"
rt "github.com/arnodel/golua/runtime"
"mvdan.cc/sh/v3/shell"
//"github.com/yuin/gopher-lua/parse"
"mvdan.cc/sh/v3/interp"
"mvdan.cc/sh/v3/syntax"
"mvdan.cc/sh/v3/expand"
)
var errNotExec = errors.New("not executable")
var errNotFound = errors.New("not found")
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
}
var runnerMode rt.Value = rt.NilValue
func runInput(input string, priv bool) {
running = true
cmdString := aliases.Resolve(input)
hooks.Emit("command.preexec", input, cmdString)
currentRunner := runnerMode
rerun:
var exitCode uint8
var err error
var cont bool
var newline 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, newline, 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, newline, err = handleSh(input)
}
} else {
// can only be a string or function so
var runnerErr error
input, exitCode, cont, newline, 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
input, exitCode, cont, newline, runnerErr, err := runLuaRunner(currentRunner, input)
if err != nil {
fmt.Fprintln(os.Stderr, err)
cmdFinish(124, input, priv)
return
}
// 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 = continuePrompt(input, newline)
@ -147,8 +51,8 @@ func runInput(input string, priv bool) {
}
if err != nil && err != io.EOF {
if exErr, ok := isExecError(err); ok {
hooks.Emit("command." + exErr.typ, exErr.cmd)
if exErr, ok := util.IsExecError(err); ok {
hooks.Emit("command." + exErr.Typ, exErr.Cmd)
} else {
fmt.Fprintln(os.Stderr, err)
}
@ -239,16 +143,7 @@ func handleLua(input string) (string, uint8, error) {
return cmdString, 125, err
}
func handleSh(cmdString string) (input string, exitCode uint8, cont bool, newline bool, runErr error) {
shRunner := hshMod.Get(rt.StringValue("runner")).AsTable().Get(rt.StringValue("sh"))
var err error
input, exitCode, cont, newline, runErr, err = runLuaRunner(shRunner, cmdString)
if err != nil {
runErr = err
}
return
}
/*
func execSh(cmdString string) (input string, exitcode uint8, cont bool, newline bool, e error) {
_, _, err := execCommand(cmdString, nil)
if err != nil {
@ -274,291 +169,15 @@ func execSh(cmdString string) (input string, exitcode uint8, cont bool, newline
return cmdString, 0, false, false, nil
}
// Run command in sh interpreter
func execCommand(cmd string, strms *streams) (io.Writer, io.Writer, error) {
file, err := syntax.NewParser().Parse(strings.NewReader(cmd), "")
if err != nil {
return nil, nil, err
}
if strms == nil {
strms = &streams{}
}
if strms.stdout == nil {
strms.stdout = os.Stdout
}
if strms.stderr == nil {
strms.stderr = os.Stderr
}
if strms.stdin == nil {
strms.stdin = os.Stdin
}
interp.StdIO(strms.stdin, strms.stdout, strms.stderr)(runner)
interp.Env(nil)(runner)
buf := new(bytes.Buffer)
printer := syntax.NewPrinter()
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
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))
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 {
fmt.Fprintln(os.Stderr, "Error in command:\n" + err.Error())
return interp.NewExitStatus(1)
}
var exitcode uint8
if code, ok := luaexitcode.TryInt(); ok {
exitcode = uint8(code)
} else if luaexitcode != rt.NilValue {
// deregister commander
delete(cmds.Commands, args[0])
fmt.Fprintf(os.Stderr, "Commander did not return number for exit code. %s, you're fired.\n", args[0])
}
return interp.NewExitStatus(exitcode)
}
path, 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,
}
}
killTimeout := 2 * time.Second
// from here is basically copy-paste of the default exec handler from
// sh/interp but with our job handling
env := hc.Env
envList := os.Environ()
env.Each(func(name string, vr expand.Variable) bool {
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()
}
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)
if bg {
j.exitCode = int(exit)
j.finish()
}
return interp.NewExitStatus(exit)
}
}
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) (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 file, 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 path, nil
}
}
return "", os.ErrNotExist
}
*/
func splitInput(input string) ([]string, string) {
// end my suffering
// TODO: refactor this garbage
quoted := false
startlastcmd := false
lastcmddone := false
cmdArgs := []string{}
sb := &strings.Builder{}
cmdstr := &strings.Builder{}
lastcmd := "" //readline.GetHistory(readline.HistorySize() - 1)
for _, r := range input {
if r == '"' {
@ -574,22 +193,6 @@ func splitInput(input string) ([]string, string) {
// 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)
}

63
golibs/fs/fs.go
View File

@ -19,38 +19,25 @@ import (
rt "github.com/arnodel/golua/runtime"
"github.com/arnodel/golua/lib/packagelib"
"github.com/arnodel/golua/lib/iolib"
"mvdan.cc/sh/v3/interp"
)
type fs struct{
runner *interp.Runner
Loader packagelib.Loader
var Loader = packagelib.Loader{
Load: loaderFunc,
Name: "fs",
}
func New(runner *interp.Runner) *fs {
f := &fs{
runner: runner,
}
f.Loader = packagelib.Loader{
Load: f.loaderFunc,
Name: "fs",
}
return f
}
func (f *fs) loaderFunc(rtm *rt.Runtime) (rt.Value, func()) {
func loaderFunc(rtm *rt.Runtime) (rt.Value, func()) {
exports := map[string]util.LuaExport{
"cd": util.LuaExport{f.fcd, 1, false},
"mkdir": util.LuaExport{f.fmkdir, 2, false},
"stat": util.LuaExport{f.fstat, 1, false},
"readdir": util.LuaExport{f.freaddir, 1, false},
"abs": util.LuaExport{f.fabs, 1, false},
"basename": util.LuaExport{f.fbasename, 1, false},
"dir": util.LuaExport{f.fdir, 1, false},
"glob": util.LuaExport{f.fglob, 1, false},
"join": util.LuaExport{f.fjoin, 0, true},
"pipe": util.LuaExport{f.fpipe, 0, false},
"cd": util.LuaExport{fcd, 1, false},
"mkdir": util.LuaExport{fmkdir, 2, false},
"stat": util.LuaExport{fstat, 1, false},
"readdir": util.LuaExport{freaddir, 1, false},
"abs": util.LuaExport{fabs, 1, false},
"basename": util.LuaExport{fbasename, 1, false},
"dir": util.LuaExport{fdir, 1, false},
"glob": util.LuaExport{fglob, 1, false},
"join": util.LuaExport{fjoin, 0, true},
"pipe": util.LuaExport{fpipe, 0, false},
}
mod := rt.NewTable()
util.SetExports(rtm, mod, exports)
@ -65,7 +52,7 @@ func (f *fs) loaderFunc(rtm *rt.Runtime) (rt.Value, func()) {
// This can be used to resolve short paths like `..` to `/home/user`.
// #param path string
// #returns string
func (f *fs) fabs(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fabs(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
path, err := c.StringArg(0)
if err != nil {
return nil, err
@ -85,7 +72,7 @@ func (f *fs) fabs(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// `.` will be returned.
// #param path string Path to get the base name of.
// #returns string
func (f *fs) fbasename(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fbasename(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}
@ -100,7 +87,7 @@ func (f *fs) fbasename(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// cd(dir)
// Changes Hilbish's directory to `dir`.
// #param dir string Path to change directory to.
func (f *fs) fcd(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fcd(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}
@ -110,12 +97,10 @@ func (f *fs) fcd(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
}
path = util.ExpandHome(strings.TrimSpace(path))
abspath, _ := filepath.Abs(path)
err = os.Chdir(path)
if err != nil {
return nil, err
}
interp.Dir(abspath)(f.runner)
return c.Next(), err
}
@ -125,7 +110,7 @@ func (f *fs) fcd(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// `~/Documents/doc.txt` then this function will return `~/Documents`.
// #param path string Path to get the directory for.
// #returns string
func (f *fs) fdir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fdir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}
@ -156,7 +141,7 @@ print(matches)
-- -> {'init.lua', 'code.lua'}
#example
*/
func (f *fs) fglob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fglob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}
@ -190,7 +175,7 @@ print(fs.join(hilbish.userDir.config, 'hilbish'))
-- -> '/home/user/.config/hilbish' on Linux
#example
*/
func (f *fs) fjoin(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fjoin(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
strs := make([]string, len(c.Etc()))
for i, v := range c.Etc() {
if v.Type() != rt.StringType {
@ -217,7 +202,7 @@ func (f *fs) fjoin(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
fs.mkdir('./foo/bar', true)
#example
*/
func (f *fs) fmkdir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fmkdir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.CheckNArgs(2); err != nil {
return nil, err
}
@ -248,7 +233,7 @@ func (f *fs) fmkdir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// The type returned is a Lua file, same as returned from `io` functions.
// #returns File
// #returns File
func (f *fs) fpipe(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fpipe(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
rf, wf, err := os.Pipe()
if err != nil {
return nil, err
@ -263,7 +248,7 @@ func (f *fs) fpipe(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
// Returns a list of all files and directories in the provided path.
// #param dir string
// #returns table
func (f *fs) freaddir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func freaddir(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}
@ -311,7 +296,7 @@ Would print the following:
]]--
#example
*/
func (f *fs) fstat(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
func fstat(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}

128
golibs/snail/lua.go 100644
View File

@ -0,0 +1,128 @@
package snail
import (
"fmt"
"strings"
"hilbish/util"
rt "github.com/arnodel/golua/runtime"
"github.com/arnodel/golua/lib/packagelib"
"mvdan.cc/sh/v3/interp"
"mvdan.cc/sh/v3/syntax"
)
var snailMetaKey = rt.StringValue("hshsnail")
var Loader = packagelib.Loader{
Load: loaderFunc,
Name: "snail",
}
func loaderFunc(rtm *rt.Runtime) (rt.Value, func()) {
snailMeta := rt.NewTable()
snailMethods := rt.NewTable()
snailFuncs := map[string]util.LuaExport{
"run": {srun, 2, false},
}
util.SetExports(rtm, snailMethods, snailFuncs)
snailIndex := func(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
arg := c.Arg(1)
val := snailMethods.Get(arg)
return c.PushingNext1(t.Runtime, val), nil
}
snailMeta.Set(rt.StringValue("__index"), rt.FunctionValue(rt.NewGoFunction(snailIndex, "__index", 2, false)))
rtm.SetRegistry(snailMetaKey, rt.TableValue(snailMeta))
exports := map[string]util.LuaExport{
"new": util.LuaExport{snew, 0, false},
}
mod := rt.NewTable()
util.SetExports(rtm, mod, exports)
return rt.TableValue(mod), nil
}
func snew(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
s := New(t.Runtime)
return c.PushingNext1(t.Runtime, rt.UserDataValue(snailUserData(s))), nil
}
func srun(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.CheckNArgs(2); err != nil {
return nil, err
}
s, err := snailArg(c, 0)
if err != nil {
return nil, err
}
cmd, err := c.StringArg(1)
if err != nil {
return nil, err
}
var newline bool
var cont bool
var luaErr rt.Value = rt.NilValue
exitCode := 0
bg, _, _, err := s.Run(cmd, nil)
if err != nil {
if syntax.IsIncomplete(err) {
/*
if !interactive {
return cmdString, 126, false, false, err
}
*/
if strings.Contains(err.Error(), "unclosed here-document") {
newline = true
}
cont = true
} else {
if code, ok := interp.IsExitStatus(err); ok {
exitCode = int(code)
} else {
if exErr, ok := util.IsExecError(err); ok {
exitCode = exErr.Code
}
luaErr = rt.StringValue(err.Error())
}
}
}
runnerRet := rt.NewTable()
runnerRet.Set(rt.StringValue("input"), rt.StringValue(cmd))
runnerRet.Set(rt.StringValue("exitCode"), rt.IntValue(int64(exitCode)))
runnerRet.Set(rt.StringValue("continue"), rt.BoolValue(cont))
runnerRet.Set(rt.StringValue("newline"), rt.BoolValue(newline))
runnerRet.Set(rt.StringValue("err"), luaErr)
runnerRet.Set(rt.StringValue("bg"), rt.BoolValue(bg))
return c.PushingNext1(t.Runtime, rt.TableValue(runnerRet)), nil
}
func snailArg(c *rt.GoCont, arg int) (*snail, error) {
s, ok := valueToSnail(c.Arg(arg))
if !ok {
return nil, fmt.Errorf("#%d must be a snail", arg + 1)
}
return s, nil
}
func valueToSnail(val rt.Value) (*snail, bool) {
u, ok := val.TryUserData()
if !ok {
return nil, false
}
s, ok := u.Value().(*snail)
return s, ok
}
func snailUserData(s *snail) *rt.UserData {
snailMeta := s.runtime.Registry(snailMetaKey)
return rt.NewUserData(s, snailMeta.AsTable())
}

302
golibs/snail/snail.go 100644
View File

@ -0,0 +1,302 @@
// shell script interpreter library
package snail
import (
"bytes"
"context"
"fmt"
"io"
"os"
"os/exec"
"os/signal"
"runtime"
"strings"
"time"
"hilbish/sink"
"hilbish/util"
rt "github.com/arnodel/golua/runtime"
"mvdan.cc/sh/v3/shell"
//"github.com/yuin/gopher-lua/parse"
"mvdan.cc/sh/v3/interp"
"mvdan.cc/sh/v3/syntax"
"mvdan.cc/sh/v3/expand"
)
type snail struct{
runner *interp.Runner
runtime *rt.Runtime
}
func New(rtm *rt.Runtime) *snail {
runner, _ := interp.New()
return &snail{
runner: runner,
runtime: rtm,
}
}
func (s *snail) Run(cmd string, strms *util.Streams) (bool, io.Writer, io.Writer, error){
file, err := syntax.NewParser().Parse(strings.NewReader(cmd), "")
if err != nil {
return false, nil, nil, err
}
if strms == nil {
strms = &util.Streams{}
}
if strms.Stdout == nil {
strms.Stdout = os.Stdout
}
if strms.Stderr == nil {
strms.Stderr = os.Stderr
}
if strms.Stdin == nil {
strms.Stdin = os.Stdin
}
interp.StdIO(strms.Stdin, strms.Stdout, strms.Stderr)(s.runner)
interp.Env(nil)(s.runner)
buf := new(bytes.Buffer)
//printer := syntax.NewPrinter()
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(func(ctx context.Context, args []string) error {
_, argstring := splitInput(strings.Join(args, " "))
// i dont really like this but it works
aliases := make(map[string]string)
aliasesLua, _ := util.DoString(s.runtime, "return hilbish.aliases.list()")
util.ForEach(aliasesLua.AsTable(), func(k, v rt.Value) {
aliases[k.AsString()] = v.AsString()
})
if aliases[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 = util.MustDoString(s.runtime, fmt.Sprintf(`return hilbish.aliases.resolve("%s")`, argstring)).AsString()
var err error
args, err = shell.Fields(argstring, nil)
if err != nil {
return err
}
}
// If command is defined in Lua then run it
luacmdArgs := rt.NewTable()
for i, str := range args[1:] {
luacmdArgs.Set(rt.IntValue(int64(i + 1)), rt.StringValue(str))
}
hc := interp.HandlerCtx(ctx)
cmds := make(map[string]*rt.Closure)
luaCmds := util.MustDoString(s.runtime, "local commander = require 'commander'; return commander.registry()").AsTable()
util.ForEach(luaCmds, func(k, v rt.Value) {
cmds[k.AsString()] = v.AsTable().Get(rt.StringValue("exec")).AsClosure()
})
if cmd := cmds[args[0]]; cmd != nil {
stdin := sink.NewSinkInput(s.runtime, hc.Stdin)
stdout := sink.NewSinkOutput(s.runtime, hc.Stdout)
stderr := sink.NewSinkOutput(s.runtime, hc.Stderr)
sinks := rt.NewTable()
sinks.Set(rt.StringValue("in"), rt.UserDataValue(stdin.UserData))
sinks.Set(rt.StringValue("input"), rt.UserDataValue(stdin.UserData))
sinks.Set(rt.StringValue("out"), rt.UserDataValue(stdout.UserData))
sinks.Set(rt.StringValue("err"), rt.UserDataValue(stderr.UserData))
t := rt.NewThread(s.runtime)
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 {
fmt.Fprintln(os.Stderr, "Error in command:\n" + err.Error())
return interp.NewExitStatus(1)
}
var exitcode uint8
if code, ok := luaexitcode.TryInt(); ok {
exitcode = uint8(code)
} else if luaexitcode != rt.NilValue {
// deregister commander
delete(cmds, args[0])
fmt.Fprintf(os.Stderr, "Commander did not return number for exit code. %s, you're fired.\n", args[0])
}
return interp.NewExitStatus(exitcode)
}
path, err := util.LookPath(args[0])
if err == util.ErrNotExec {
return util.ExecError{
Typ: "not-executable",
Cmd: args[0],
Code: 126,
Colon: true,
Err: util.ErrNotExec,
}
} else if err != nil {
return util.ExecError{
Typ: "not-found",
Cmd: args[0],
Code: 127,
Err: util.ErrNotFound,
}
}
killTimeout := 2 * time.Second
// from here is basically copy-paste of the default exec handler from
// sh/interp but with our job handling
env := hc.Env
envList := os.Environ()
env.Each(func(name string, vr expand.Variable) bool {
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()
}
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 := util.HandleExecErr(err)
if bg {
//j.exitCode = int(exit)
//j.finish()
}
return interp.NewExitStatus(exit)
})(s.runner)
err = s.runner.Run(context.TODO(), stmt)
if err != nil {
return bg, strms.Stdout, strms.Stderr, err
}
}
return bg, strms.Stdout, strms.Stderr, nil
}
func splitInput(input string) ([]string, string) {
// end my suffering
// TODO: refactor this garbage
quoted := false
cmdArgs := []string{}
sb := &strings.Builder{}
cmdstr := &strings.Builder{}
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 {
sb.WriteRune(r)
}
cmdstr.WriteRune(r)
}
if sb.Len() > 0 {
cmdArgs = append(cmdArgs, sb.String())
}
return cmdArgs, cmdstr.String()
}

6
job.go
View File

@ -56,8 +56,8 @@ func (j *job) start() error {
}
j.setHandle(&cmd)
}
// bgProcAttr is defined in execfile_<os>.go, it holds a procattr struct
// in a simple explanation, it makes signals from hilbish (sigint)
// bgProcAttr is defined in job_<os>.go, it holds a procattr struct
// in a simple explanation, it makes signals from hilbish (like sigint)
// not go to it (child process)
j.handle.SysProcAttr = bgProcAttr
// reset output buffers
@ -136,7 +136,7 @@ func luaStartJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if !j.running {
err := j.start()
exit := handleExecErr(err)
exit := util.HandleExecErr(err)
j.exitCode = int(exit)
j.finish()
}

4
job_unix.go
View File

@ -10,6 +10,10 @@ import (
"golang.org/x/sys/unix"
)
var bgProcAttr *syscall.SysProcAttr = &syscall.SysProcAttr{
Setpgid: true,
}
func (j *job) foreground() error {
if jobs.foreground {
return errors.New("(another) job already foregrounded")

5
job_windows.go
View File

@ -4,8 +4,13 @@ package main
import (
"errors"
"syscall"
)
var bgProcAttr *syscall.SysProcAttr = &syscall.SysProcAttr{
CreationFlags: syscall.CREATE_NEW_PROCESS_GROUP,
}
func (j *job) foreground() error {
return errors.New("not supported on windows")
}

9
lua.go
View File

@ -4,10 +4,12 @@ import (
"fmt"
"os"
"hilbish/sink"
"hilbish/util"
"hilbish/golibs/bait"
"hilbish/golibs/commander"
"hilbish/golibs/fs"
"hilbish/golibs/snail"
"hilbish/golibs/terminal"
rt "github.com/arnodel/golua/runtime"
@ -23,16 +25,15 @@ func luaInit() {
MessageHandler: debuglib.Traceback,
})
lib.LoadAll(l)
setupSinkType(l)
sink.SetupSinkType(l)
lib.LoadLibs(l, hilbishLoader)
// yes this is stupid, i know
util.DoString(l, "hilbish = require 'hilbish'")
// Add fs and terminal module module to Lua
f := fs.New(runner)
lib.LoadLibs(l, f.Loader)
lib.LoadLibs(l, fs.Loader)
lib.LoadLibs(l, terminal.Loader)
lib.LoadLibs(l, snail.Loader)
cmds = commander.New(l)
lib.LoadLibs(l, cmds.Loader)

12
main.go
View File

@ -21,7 +21,6 @@ import (
"github.com/pborman/getopt"
"github.com/maxlandon/readline"
"golang.org/x/term"
"mvdan.cc/sh/v3/interp"
)
var (
@ -38,11 +37,9 @@ var (
cmds *commander.Commander
defaultConfPath string
defaultHistPath string
runner *interp.Runner
)
func main() {
runner, _ = interp.New()
curuser, _ = user.Current()
homedir := curuser.HomeDir
confDir, _ = os.UserConfigDir()
@ -313,15 +310,6 @@ func removeDupes(slice []string) []string {
return newSlice
}
func contains(s []string, e string) bool {
for _, a := range s {
if strings.ToLower(a) == strings.ToLower(e) {
return true
}
}
return false
}
func exit(code int) {
jobs.stopAll()

9
nature/commands/cd.lua
View File

@ -3,8 +3,9 @@ local commander = require 'commander'
local fs = require 'fs'
local dirs = require 'nature.dirs'
dirs.old = hilbish.cwd()
commander.register('cd', function (args, sinks)
local oldPath = hilbish.cwd()
if #args > 1 then
sinks.out:writeln("cd: too many arguments")
return 1
@ -16,13 +17,11 @@ commander.register('cd', function (args, sinks)
sinks.out:writeln(path)
end
dirs.setOld(hilbish.cwd())
dirs.push(path)
local ok, err = pcall(function() fs.cd(path) end)
if not ok then
sinks.out:writeln(err)
return 1
end
bait.throw('cd', path)
bait.throw('cd', path, oldPath)
bait.throw('hilbish.cd', fs.abs(path), oldPath)
end)

6
nature/dirs.lua
View File

@ -1,4 +1,5 @@
-- @module dirs
local bait = require 'bait'
local fs = require 'fs'
local dirs = {}
@ -73,4 +74,9 @@ function dirs.setOld(d)
dirs.old = d
end
bait.catch('hilbish.cd', function(path, oldPath)
dirs.setOld(oldPath)
dirs.push(path)
end)
return dirs

13
nature/runner.lua
View File

@ -1,4 +1,6 @@
--- hilbish.runner
local snail = require 'snail'
local currentRunner = 'hybrid'
local runners = {}
@ -81,6 +83,11 @@ function hilbish.runner.getCurrent()
return currentRunner
end
local snaili = snail.new()
function hilbish.runner.sh(input)
return snaili:run(input)
end
hilbish.runner.add('hybrid', function(input)
local cmdStr = hilbish.aliases.resolve(input)
@ -107,7 +114,5 @@ hilbish.runner.add('lua', function(input)
return hilbish.runner.lua(cmdStr)
end)
hilbish.runner.add('sh', function(input)
return hilbish.runner.sh(input)
end)
hilbish.runner.add('sh', hilbish.runner.sh)
hilbish.runner.setCurrent 'hybrid'

8
runnermode.go
View File

@ -53,7 +53,7 @@ end)
*/
func runnerModeLoader(rtm *rt.Runtime) *rt.Table {
exports := map[string]util.LuaExport{
"sh": {shRunner, 1, false},
//"sh": {shRunner, 1, false},
"lua": {luaRunner, 1, false},
"setMode": {hlrunnerMode, 1, false},
}
@ -66,10 +66,12 @@ func runnerModeLoader(rtm *rt.Runtime) *rt.Table {
// #interface runner
// setMode(cb)
// **NOTE: This function is deprecated and will be removed in 3.0**
// Use `hilbish.runner.setCurrent` instead.
// This is the same as the `hilbish.runnerMode` function.
// It takes a callback, which will be used to execute all interactive input.
// In normal cases, neither callbacks should be overrided by the user,
// as the higher level functions listed below this will handle it.
// as the higher level functions (setCurrent) this will handle it.
// #param cb function
func _runnerMode() {}
@ -78,6 +80,7 @@ func _runnerMode() {}
// Runs a command in Hilbish's shell script interpreter.
// This is the equivalent of using `source`.
// #param cmd string
/*
func shRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
@ -101,6 +104,7 @@ func shRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
return c.PushingNext(t.Runtime, rt.TableValue(runnerRet)), nil
}
*/
// #interface runner
// lua(cmd)

34
sink.go → sink/sink.go
View File

@ -1,4 +1,4 @@
package main
package sink
import (
"bufio"
@ -17,15 +17,15 @@ var sinkMetaKey = rt.StringValue("hshsink")
// #type
// A sink is a structure that has input and/or output to/from
// a desination.
type sink struct{
type Sink struct{
writer *bufio.Writer
reader *bufio.Reader
file *os.File
ud *rt.UserData
UserData *rt.UserData
autoFlush bool
}
func setupSinkType(rtm *rt.Runtime) {
func SetupSinkType(rtm *rt.Runtime) {
sinkMeta := rt.NewTable()
sinkMethods := rt.NewTable()
@ -37,7 +37,7 @@ func setupSinkType(rtm *rt.Runtime) {
"write": {luaSinkWrite, 2, false},
"writeln": {luaSinkWriteln, 2, false},
}
util.SetExports(l, sinkMethods, sinkFuncs)
util.SetExports(rtm, sinkMethods, sinkFuncs)
sinkIndex := func(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
s, _ := sinkArg(c, 0)
@ -64,7 +64,7 @@ func setupSinkType(rtm *rt.Runtime) {
}
sinkMeta.Set(rt.StringValue("__index"), rt.FunctionValue(rt.NewGoFunction(sinkIndex, "__index", 2, false)))
l.SetRegistry(sinkMetaKey, rt.TableValue(sinkMeta))
rtm.SetRegistry(sinkMetaKey, rt.TableValue(sinkMeta))
}
@ -212,11 +212,11 @@ func luaSinkAutoFlush(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
return c.Next(), nil
}
func newSinkInput(r io.Reader) *sink {
s := &sink{
func NewSinkInput(rtm *rt.Runtime, r io.Reader) *Sink {
s := &Sink{
reader: bufio.NewReader(r),
}
s.ud = sinkUserData(s)
s.UserData = sinkUserData(rtm, s)
if f, ok := r.(*os.File); ok {
s.file = f
@ -225,17 +225,17 @@ func newSinkInput(r io.Reader) *sink {
return s
}
func newSinkOutput(w io.Writer) *sink {
s := &sink{
func NewSinkOutput(rtm *rt.Runtime, w io.Writer) *Sink {
s := &Sink{
writer: bufio.NewWriter(w),
autoFlush: true,
}
s.ud = sinkUserData(s)
s.UserData = sinkUserData(rtm, s)
return s
}
func sinkArg(c *rt.GoCont, arg int) (*sink, error) {
func sinkArg(c *rt.GoCont, arg int) (*Sink, error) {
s, ok := valueToSink(c.Arg(arg))
if !ok {
return nil, fmt.Errorf("#%d must be a sink", arg + 1)
@ -244,17 +244,17 @@ func sinkArg(c *rt.GoCont, arg int) (*sink, error) {
return s, nil
}
func valueToSink(val rt.Value) (*sink, bool) {
func valueToSink(val rt.Value) (*Sink, bool) {
u, ok := val.TryUserData()
if !ok {
return nil, false
}
s, ok := u.Value().(*sink)
s, ok := u.Value().(*Sink)
return s, ok
}
func sinkUserData(s *sink) *rt.UserData {
sinkMeta := l.Registry(sinkMetaKey)
func sinkUserData(rtm *rt.Runtime, s *Sink) *rt.UserData {
sinkMeta := rtm.Registry(sinkMetaKey)
return rt.NewUserData(s, sinkMeta.AsTable())
}

11
util/streams.go 100644
View File

@ -0,0 +1,11 @@
package util
import (
"io"
)
type Streams struct {
Stdout io.Writer
Stderr io.Writer
Stdin io.Reader
}

137
util/util.go
View File

@ -2,14 +2,78 @@ package util
import (
"bufio"
"context"
"errors"
"fmt"
"io"
"path/filepath"
"strings"
"os"
"os/exec"
"os/user"
"runtime"
"syscall"
rt "github.com/arnodel/golua/runtime"
)
var ErrNotExec = errors.New("not executable")
var ErrNotFound = errors.New("not found")
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
}
// SetField sets a field in a table, adding docs for it.
// It is accessible via the __docProp metatable. It is a table of the names of the fields.
func SetField(rtm *rt.Runtime, module *rt.Table, field string, value rt.Value) {
@ -36,6 +100,15 @@ func DoString(rtm *rt.Runtime, code string) (rt.Value, error) {
return ret, err
}
func MustDoString(rtm *rt.Runtime, code string) rt.Value {
val, err := DoString(rtm, code)
if err != nil {
panic(err)
}
return val
}
// DoFile runs the contents of the file in the Lua runtime.
func DoFile(rtm *rt.Runtime, path string) error {
f, err := os.Open(path)
@ -141,3 +214,67 @@ func AbbrevHome(path string) string {
return path
}
func LookPath(file string) (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 file, 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 path, nil
}
}
return "", os.ErrNotExist
}
func Contains(s []string, e string) bool {
for _, a := range s {
if strings.ToLower(a) == strings.ToLower(e) {
return true
}
}
return false
}
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
}

11
execfile_unix.go → util/util_unix.go
View File

@ -1,17 +1,12 @@
//go:build unix
package main
package util
import (
"os"
"syscall"
)
var bgProcAttr *syscall.SysProcAttr = &syscall.SysProcAttr{
Setpgid: true,
}
func findExecutable(path string, inPath, dirs bool) error {
func FindExecutable(path string, inPath, dirs bool) error {
f, err := os.Stat(path)
if err != nil {
return err
@ -25,5 +20,5 @@ func findExecutable(path string, inPath, dirs bool) error {
return nil
}
}
return errNotExec
return ErrNotExec
}

17
execfile_windows.go → util/util_windows.go
View File

@ -1,18 +1,13 @@
//go:build windows
package main
package util
import (
"path/filepath"
"os"
"syscall"
)
var bgProcAttr *syscall.SysProcAttr = &syscall.SysProcAttr{
CreationFlags: syscall.CREATE_NEW_PROCESS_GROUP,
}
func findExecutable(path string, inPath, dirs bool) error {
func FindExecutable(path string, inPath, dirs bool) error {
nameExt := filepath.Ext(path)
pathExts := filepath.SplitList(os.Getenv("PATHEXT"))
if inPath {
@ -26,15 +21,15 @@ func findExecutable(path string, inPath, dirs bool) error {
} else {
_, err := os.Stat(path)
if err == nil {
if contains(pathExts, nameExt) { return nil }
return errNotExec
if Contains(pathExts, nameExt) { return nil }
return ErrNotExec
}
}
} else {
_, err := os.Stat(path)
if err == nil {
if contains(pathExts, nameExt) { return nil }
return errNotExec
if Contains(pathExts, nameExt) { return nil }
return ErrNotExec
}
}