package main
import (
- "bytes"
"fmt"
- "io"
- "io/ioutil"
"os"
- "os/exec"
- "os/signal"
+ "path/filepath"
"regexp"
+ "runtime"
+ "strconv"
"strings"
- "github.com/mitchellh/go-homedir"
+ humanize "github.com/dustin/go-humanize"
+ "github.com/zyedidia/micro/cmd/micro/shellwords"
)
+// A Command contains a action (a function to call) as well as information about how to autocomplete the command
type Command struct {
action func([]string)
completions []Completion
}
+// A StrCommand is similar to a command but keeps the name of the action
type StrCommand struct {
action string
completions []Completion
var commands map[string]Command
-var commandActions = map[string]func([]string){
- "Set": Set,
- "SetLocal": SetLocal,
- "Show": Show,
- "Run": Run,
- "Bind": Bind,
- "Quit": Quit,
- "Save": Save,
- "Replace": Replace,
- "VSplit": VSplit,
- "HSplit": HSplit,
- "Tab": NewTab,
- "Help": Help,
- "Eval": Eval,
- "ToggleLog": ToggleLog,
- "Plugin": PluginCmd,
+var commandActions map[string]func([]string)
+
+func init() {
+ commandActions = map[string]func([]string){
+ "Set": Set,
+ "SetLocal": SetLocal,
+ "Show": Show,
+ "ShowKey": ShowKey,
+ "Run": Run,
+ "Bind": Bind,
+ "Quit": Quit,
+ "Save": Save,
+ "Replace": Replace,
+ "ReplaceAll": ReplaceAll,
+ "VSplit": VSplit,
+ "HSplit": HSplit,
+ "Tab": NewTab,
+ "Help": Help,
+ "Eval": Eval,
+ "ToggleLog": ToggleLog,
+ "Plugin": PluginCmd,
+ "Reload": Reload,
+ "Cd": Cd,
+ "Pwd": Pwd,
+ "Open": Open,
+ "TabSwitch": TabSwitch,
+ "Term": Term,
+ "MemUsage": MemUsage,
+ "Retab": Retab,
+ "Raw": Raw,
+ }
}
// InitCommands initializes the default commands
// DefaultCommands returns a map containing micro's default commands
func DefaultCommands() map[string]StrCommand {
return map[string]StrCommand{
- "set": {"Set", []Completion{OptionCompletion, NoCompletion}},
- "setlocal": {"SetLocal", []Completion{OptionCompletion, NoCompletion}},
- "show": {"Show", []Completion{OptionCompletion, NoCompletion}},
- "bind": {"Bind", []Completion{NoCompletion}},
- "run": {"Run", []Completion{NoCompletion}},
- "quit": {"Quit", []Completion{NoCompletion}},
- "save": {"Save", []Completion{NoCompletion}},
- "replace": {"Replace", []Completion{NoCompletion}},
- "vsplit": {"VSplit", []Completion{FileCompletion, NoCompletion}},
- "hsplit": {"HSplit", []Completion{FileCompletion, NoCompletion}},
- "tab": {"Tab", []Completion{FileCompletion, NoCompletion}},
- "help": {"Help", []Completion{HelpCompletion, NoCompletion}},
- "eval": {"Eval", []Completion{NoCompletion}},
- "log": {"ToggleLog", []Completion{NoCompletion}},
- "plugin": {"Plugin", []Completion{PluginCmdCompletion, PluginNameCompletion}},
+ "set": {"Set", []Completion{OptionCompletion, OptionValueCompletion}},
+ "setlocal": {"SetLocal", []Completion{OptionCompletion, OptionValueCompletion}},
+ "show": {"Show", []Completion{OptionCompletion, NoCompletion}},
+ "showkey": {"ShowKey", []Completion{NoCompletion}},
+ "bind": {"Bind", []Completion{NoCompletion}},
+ "run": {"Run", []Completion{NoCompletion}},
+ "quit": {"Quit", []Completion{NoCompletion}},
+ "save": {"Save", []Completion{NoCompletion}},
+ "replace": {"Replace", []Completion{NoCompletion}},
+ "replaceall": {"ReplaceAll", []Completion{NoCompletion}},
+ "vsplit": {"VSplit", []Completion{FileCompletion, NoCompletion}},
+ "hsplit": {"HSplit", []Completion{FileCompletion, NoCompletion}},
+ "tab": {"Tab", []Completion{FileCompletion, NoCompletion}},
+ "help": {"Help", []Completion{HelpCompletion, NoCompletion}},
+ "eval": {"Eval", []Completion{NoCompletion}},
+ "log": {"ToggleLog", []Completion{NoCompletion}},
+ "plugin": {"Plugin", []Completion{PluginCmdCompletion, PluginNameCompletion}},
+ "reload": {"Reload", []Completion{NoCompletion}},
+ "cd": {"Cd", []Completion{FileCompletion}},
+ "pwd": {"Pwd", []Completion{NoCompletion}},
+ "open": {"Open", []Completion{FileCompletion}},
+ "tabswitch": {"TabSwitch", []Completion{NoCompletion}},
+ "term": {"Term", []Completion{NoCompletion}},
+ "memusage": {"MemUsage", []Completion{NoCompletion}},
+ "retab": {"Retab", []Completion{NoCompletion}},
+ "raw": {"Raw", []Completion{NoCompletion}},
+ }
+}
+
+// CommandEditAction returns a bindable function that opens a prompt with
+// the given string and executes the command when the user presses
+// enter
+func CommandEditAction(prompt string) func(*View, bool) bool {
+ return func(v *View, usePlugin bool) bool {
+ input, canceled := messenger.Prompt("> ", prompt, "Command", CommandCompletion)
+ if !canceled {
+ HandleCommand(input)
+ }
+ return false
+ }
+}
+
+// CommandAction returns a bindable function which executes the
+// given command
+func CommandAction(cmd string) func(*View, bool) bool {
+ return func(v *View, usePlugin bool) bool {
+ HandleCommand(cmd)
+ return false
}
}
removed := ""
for _, plugin := range args[1:] {
// check if the plugin exists.
- for _, lp := range loadedPlugins {
- if lp == plugin {
- UninstallPlugin(plugin)
- removed += plugin + " "
- continue
- }
+ if _, ok := loadedPlugins[plugin]; ok {
+ UninstallPlugin(plugin)
+ removed += plugin + " "
+ continue
}
}
- if !IsSpaces(removed) {
+ if !IsSpaces([]byte(removed)) {
messenger.Message("Removed ", removed)
} else {
messenger.Error("The requested plugins do not exist")
ToggleLog([]string{})
}
}
+ case "available":
+ packages := GetAllPluginPackages()
+ messenger.AddLog("Available Plugins:")
+ for _, pkg := range packages {
+ messenger.AddLog(pkg.Name)
+ }
+ if CurView().Type != vtLog {
+ ToggleLog([]string{})
+ }
}
} else {
messenger.Error("Not enough arguments")
}
}
+// Retab changes all spaces to tabs or all tabs to spaces
+// depending on the user's settings
+func Retab(args []string) {
+ CurView().Retab(true)
+}
+
+// Raw opens a new raw view which displays the escape sequences micro
+// is receiving in real-time
+func Raw(args []string) {
+ buf := NewBufferFromString("", "Raw events")
+
+ view := NewView(buf)
+ view.Buf.Insert(view.Cursor.Loc, "Warning: Showing raw event escape codes\n")
+ view.Buf.Insert(view.Cursor.Loc, "Use CtrlQ to exit\n")
+ view.Type = vtRaw
+ tab := NewTabFromView(view)
+ tab.SetNum(len(tabs))
+ tabs = append(tabs, tab)
+ curTab = len(tabs) - 1
+ if len(tabs) == 2 {
+ for _, t := range tabs {
+ for _, v := range t.views {
+ v.ToggleTabbar()
+ }
+ }
+ }
+}
+
+// TabSwitch switches to a given tab either by name or by number
+func TabSwitch(args []string) {
+ if len(args) > 0 {
+ num, err := strconv.Atoi(args[0])
+ if err != nil {
+ // Check for tab with this name
+
+ found := false
+ for _, t := range tabs {
+ v := t.views[t.CurView]
+ if v.Buf.GetName() == args[0] {
+ curTab = v.TabNum
+ found = true
+ }
+ }
+ if !found {
+ messenger.Error("Could not find tab: ", err)
+ }
+ } else {
+ num--
+ if num >= 0 && num < len(tabs) {
+ curTab = num
+ } else {
+ messenger.Error("Invalid tab index")
+ }
+ }
+ }
+}
+
+// Cd changes the current working directory
+func Cd(args []string) {
+ if len(args) > 0 {
+ path := ReplaceHome(args[0])
+ err := os.Chdir(path)
+ if err != nil {
+ messenger.Error("Error with cd: ", err)
+ return
+ }
+ wd, _ := os.Getwd()
+ for _, tab := range tabs {
+ for _, view := range tab.views {
+ if len(view.Buf.name) == 0 {
+ continue
+ }
+
+ view.Buf.Path, _ = MakeRelative(view.Buf.AbsPath, wd)
+ if p, _ := filepath.Abs(view.Buf.Path); !strings.Contains(p, wd) {
+ view.Buf.Path = view.Buf.AbsPath
+ }
+ }
+ }
+ }
+}
+
+// MemUsage prints micro's memory usage
+// Alloc shows how many bytes are currently in use
+// Sys shows how many bytes have been requested from the operating system
+// NumGC shows how many times the GC has been run
+// Note that Go commonly reserves more memory from the OS than is currently in-use/required
+// Additionally, even if Go returns memory to the OS, the OS does not always claim it because
+// there may be plenty of memory to spare
+func MemUsage(args []string) {
+ var mem runtime.MemStats
+ runtime.ReadMemStats(&mem)
+
+ messenger.Message(fmt.Sprintf("Alloc: %v, Sys: %v, NumGC: %v", humanize.Bytes(mem.Alloc), humanize.Bytes(mem.Sys), mem.NumGC))
+}
+
+// Pwd prints the current working directory
+func Pwd(args []string) {
+ wd, err := os.Getwd()
+ if err != nil {
+ messenger.Message(err.Error())
+ } else {
+ messenger.Message(wd)
+ }
+}
+
+// Open opens a new buffer with a given filename
+func Open(args []string) {
+ if len(args) > 0 {
+ filename := args[0]
+ // the filename might or might not be quoted, so unquote first then join the strings.
+ args, err := shellwords.Split(filename)
+ if err != nil {
+ messenger.Error("Error parsing args ", err)
+ return
+ }
+ filename = strings.Join(args, " ")
+
+ CurView().Open(filename)
+ } else {
+ messenger.Error("No filename")
+ }
+}
+
+// ToggleLog toggles the log view
func ToggleLog(args []string) {
buffer := messenger.getBuffer()
if CurView().Type != vtLog {
CurView().HSplit(buffer)
CurView().Type = vtLog
+ RedrawAll()
+ buffer.Cursor.Loc = buffer.Start()
+ CurView().Relocate()
+ buffer.Cursor.Loc = buffer.End()
+ CurView().Relocate()
} else {
CurView().Quit(true)
}
}
+// Reload reloads all files (syntax files, colorschemes...)
+func Reload(args []string) {
+ LoadAll()
+}
+
// Help tries to open the given help page in a horizontal split
func Help(args []string) {
if len(args) < 1 {
// If no file is given, it opens an empty buffer in a new split
func VSplit(args []string) {
if len(args) == 0 {
- CurView().VSplit(NewBuffer([]byte{}, ""))
+ CurView().VSplit(NewBufferFromString("", ""))
} else {
filename := args[0]
- home, _ := homedir.Dir()
- filename = strings.Replace(filename, "~", home, 1)
- file, err := ioutil.ReadFile(filename)
+ filename = ReplaceHome(filename)
+ file, err := os.Open(filename)
+ fileInfo, _ := os.Stat(filename)
+
+ if err == nil && fileInfo.IsDir() {
+ messenger.Error(filename, " is a directory")
+ return
+ }
+
+ defer file.Close()
var buf *Buffer
if err != nil {
// File does not exist -- create an empty buffer with that name
- buf = NewBuffer([]byte{}, filename)
+ buf = NewBufferFromString("", filename)
} else {
- buf = NewBuffer(file, filename)
+ buf = NewBuffer(file, FSize(file), filename)
}
CurView().VSplit(buf)
}
// If no file is given, it opens an empty buffer in a new split
func HSplit(args []string) {
if len(args) == 0 {
- CurView().HSplit(NewBuffer([]byte{}, ""))
+ CurView().HSplit(NewBufferFromString("", ""))
} else {
filename := args[0]
- home, _ := homedir.Dir()
- filename = strings.Replace(filename, "~", home, 1)
- file, err := ioutil.ReadFile(filename)
+ filename = ReplaceHome(filename)
+ file, err := os.Open(filename)
+ fileInfo, _ := os.Stat(filename)
+
+ if err == nil && fileInfo.IsDir() {
+ messenger.Error(filename, " is a directory")
+ return
+ }
+
+ defer file.Close()
var buf *Buffer
if err != nil {
// File does not exist -- create an empty buffer with that name
- buf = NewBuffer([]byte{}, filename)
+ buf = NewBufferFromString("", filename)
} else {
- buf = NewBuffer(file, filename)
+ buf = NewBuffer(file, FSize(file), filename)
}
CurView().HSplit(buf)
}
CurView().AddTab(true)
} else {
filename := args[0]
- home, _ := homedir.Dir()
- filename = strings.Replace(filename, "~", home, 1)
- file, _ := ioutil.ReadFile(filename)
+ filename = ReplaceHome(filename)
+ file, err := os.Open(filename)
+ fileInfo, _ := os.Stat(filename)
+
+ if err == nil && fileInfo.IsDir() {
+ messenger.Error(filename, " is a directory")
+ return
+ }
+
+ defer file.Close()
- tab := NewTabFromView(NewView(NewBuffer(file, filename)))
+ var buf *Buffer
+ if err != nil {
+ buf = NewBufferFromString("", filename)
+ } else {
+ buf = NewBuffer(file, FSize(file), filename)
+ }
+
+ tab := NewTabFromView(NewView(buf))
tab.SetNum(len(tabs))
tabs = append(tabs, tab)
- curTab++
+ curTab = len(tabs) - 1
if len(tabs) == 2 {
for _, t := range tabs {
for _, v := range t.views {
return
}
- option := strings.TrimSpace(args[0])
- value := strings.TrimSpace(args[1])
+ option := args[0]
+ value := args[1]
SetOptionAndSettings(option, value)
}
return
}
- option := strings.TrimSpace(args[0])
- value := strings.TrimSpace(args[1])
+ option := args[0]
+ value := args[1]
err := SetLocalOption(option, value, CurView())
if err != nil {
messenger.Message(option)
}
+// ShowKey displays the action that a key is bound to
+func ShowKey(args []string) {
+ if len(args) < 1 {
+ messenger.Error("Please provide a key to show")
+ return
+ }
+
+ if action, ok := bindingsStr[args[0]]; ok {
+ messenger.Message(action)
+ } else {
+ messenger.Message(args[0], " has no binding")
+ }
+}
+
// Bind creates a new keybinding
func Bind(args []string) {
if len(args) < 2 {
// Run runs a shell command in the background
func Run(args []string) {
// Run a shell command in the background (openTerm is false)
- HandleShellCommand(JoinCommandArgs(args...), false, true)
+ HandleShellCommand(shellwords.Join(args...), false, true)
}
// Quit closes the main view
// Replace runs search and replace
func Replace(args []string) {
- if len(args) < 2 {
+ if len(args) < 2 || len(args) > 4 {
// We need to find both a search and replace expression
messenger.Error("Invalid replace statement: " + strings.Join(args, " "))
return
}
- var flags string
- if len(args) == 3 {
- // The user included some flags
- flags = args[2]
+ all := false
+ noRegex := false
+
+ if len(args) > 2 {
+ for _, arg := range args[2:] {
+ switch arg {
+ case "-a":
+ all = true
+ case "-l":
+ noRegex = true
+ default:
+ messenger.Error("Invalid flag: " + arg)
+ return
+ }
+ }
}
search := string(args[0])
+
+ if noRegex {
+ search = regexp.QuoteMeta(search)
+ }
+
replace := string(args[1])
- regex, err := regexp.Compile(search)
+ regex, err := regexp.Compile("(?m)" + search)
if err != nil {
// There was an error with the user's regex
messenger.Error(err.Error())
view := CurView()
found := 0
- if strings.Contains(flags, "c") {
+ replaceAll := func() {
+ var deltas []Delta
+ deltaXOffset := Count(replace) - Count(search)
+ for i := 0; i < view.Buf.LinesNum(); i++ {
+ matches := regex.FindAllIndex(view.Buf.lines[i].data, -1)
+ str := string(view.Buf.lines[i].data)
+
+ if matches != nil {
+ xOffset := 0
+ for _, m := range matches {
+ from := Loc{runePos(m[0], str) + xOffset, i}
+ to := Loc{runePos(m[1], str) + xOffset, i}
+
+ xOffset += deltaXOffset
+
+ deltas = append(deltas, Delta{replace, from, to})
+ found++
+ }
+ }
+ }
+ view.Buf.MultipleReplace(deltas)
+ }
+
+ if all {
+ replaceAll()
+ } else {
for {
// The 'check' flag was used
Search(search, view, true)
break
}
view.Relocate()
- if view.Buf.Settings["syntax"].(bool) {
- view.matches = Match(view)
- }
RedrawAll()
- choice, canceled := messenger.YesNoPrompt("Perform replacement? (y,n)")
+ choice, canceled := messenger.LetterPrompt("Perform replacement? (y,n,a)", 'y', 'n', 'a')
if canceled {
if view.Cursor.HasSelection() {
view.Cursor.Loc = view.Cursor.CurSelection[0]
}
messenger.Reset()
break
- }
- if choice {
+ } else if choice == 'a' {
+ if view.Cursor.HasSelection() {
+ view.Cursor.Loc = view.Cursor.CurSelection[0]
+ view.Cursor.ResetSelection()
+ }
+ messenger.Reset()
+ replaceAll()
+ break
+ } else if choice == 'y' {
view.Cursor.DeleteSelection()
view.Buf.Insert(view.Cursor.Loc, replace)
view.Cursor.ResetSelection()
messenger.Reset()
found++
- } else {
- if view.Cursor.HasSelection() {
- searchStart = ToCharPos(view.Cursor.CurSelection[1], view.Buf)
- } else {
- searchStart = ToCharPos(view.Cursor.Loc, view.Buf)
- }
- continue
}
- }
- } else {
- matches := regex.FindAllStringIndex(view.Buf.String(), -1)
- if matches != nil && len(matches) > 0 {
- adjust := 0
- prevMatch := matches[0]
- from := FromCharPos(prevMatch[0], view.Buf)
- to := from.Move(Count(search), view.Buf)
- adjust += Count(replace) - Count(search)
- view.Buf.Replace(from, to, replace)
- if len(matches) > 1 {
- for _, match := range matches[1:] {
- found++
- from = from.Move(match[0]-prevMatch[0]+adjust, view.Buf)
- to := from.Move(Count(search), view.Buf)
- // TermMessage(match[0], " ", prevMatch[0], " ", adjust, "\n", from, " ", to)
- view.Buf.Replace(from, to, replace)
- prevMatch = match
- // adjust += Count(replace) - Count(search)
- }
+ if view.Cursor.HasSelection() {
+ searchStart = view.Cursor.CurSelection[1]
+ } else {
+ searchStart = view.Cursor.Loc
}
}
}
}
}
-// RunShellCommand executes a shell command and returns the output/error
-func RunShellCommand(input string) (string, error) {
- inputCmd := SplitCommandArgs(input)[0]
- args := SplitCommandArgs(input)[1:]
-
- cmd := exec.Command(inputCmd, args...)
- outputBytes := &bytes.Buffer{}
- cmd.Stdout = outputBytes
- cmd.Stderr = outputBytes
- cmd.Start()
- err := cmd.Wait() // wait for command to finish
- outstring := outputBytes.String()
- return outstring, err
-}
-
-// HandleShellCommand runs the shell command
-// The openTerm argument specifies whether a terminal should be opened (for viewing output
-// or interacting with stdin)
-func HandleShellCommand(input string, openTerm bool, waitToFinish bool) string {
- inputCmd := SplitCommandArgs(input)[0]
- if !openTerm {
- // Simply run the command in the background and notify the user when it's done
- messenger.Message("Running...")
- go func() {
- output, err := RunShellCommand(input)
- totalLines := strings.Split(output, "\n")
-
- if len(totalLines) < 3 {
- if err == nil {
- messenger.Message(inputCmd, " exited without error")
- } else {
- messenger.Message(inputCmd, " exited with error: ", err, ": ", output)
- }
- } else {
- messenger.Message(output)
- }
- // We have to make sure to redraw
- RedrawAll()
- }()
- } else {
- // Shut down the screen because we're going to interact directly with the shell
- screen.Fini()
- screen = nil
-
- args := SplitCommandArgs(input)[1:]
-
- // Set up everything for the command
- var outputBuf bytes.Buffer
- cmd := exec.Command(inputCmd, args...)
- cmd.Stdin = os.Stdin
- cmd.Stdout = io.MultiWriter(os.Stdout, &outputBuf)
- cmd.Stderr = os.Stderr
-
- // This is a trap for Ctrl-C so that it doesn't kill micro
- // Instead we trap Ctrl-C to kill the program we're running
- c := make(chan os.Signal, 1)
- signal.Notify(c, os.Interrupt)
- go func() {
- for range c {
- cmd.Process.Kill()
- }
- }()
-
- cmd.Start()
- err := cmd.Wait()
-
- output := outputBuf.String()
- if err != nil {
- output = err.Error()
- }
-
- if waitToFinish {
- // This is just so we don't return right away and let the user press enter to return
- TermMessage("")
- }
-
- // Start the screen back up
- InitScreen()
+// ReplaceAll replaces search term all at once
+func ReplaceAll(args []string) {
+ // aliased to Replace command
+ Replace(append(args, "-a"))
+}
- return output
+// Term opens a terminal in the current view
+func Term(args []string) {
+ var err error
+ if len(args) == 0 {
+ err = CurView().StartTerminal([]string{os.Getenv("SHELL"), "-i"}, true, false, "")
+ } else {
+ err = CurView().StartTerminal(args, true, false, "")
+ }
+ if err != nil {
+ messenger.Error(err)
}
- return ""
}
// HandleCommand handles input from the user
func HandleCommand(input string) {
- args := SplitCommandArgs(input)
+ args, err := shellwords.Split(input)
+ if err != nil {
+ messenger.Error("Error parsing args ", err)
+ return
+ }
+
inputCmd := args[0]
if _, ok := commands[inputCmd]; !ok {
projects / micro.git / blobdiff