/
client.go
256 lines (218 loc) · 5.24 KB
/
client.go
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package main
import (
"flag"
"fmt"
"io/ioutil"
"net/rpc"
"os"
"path/filepath"
"strconv"
"time"
"code.google.com/p/goplan9/plan9/acme"
)
var compl_win *acme.Win
var compl_id int
var afile *acmeFile
var carrent_win *acme.Win
var carrent_win_id int
var needinsert bool
func do_client() int {
addr := *g_addr
if *g_sock == "unix" {
addr = get_socket_filename()
}
// client
client, err := rpc.Dial(*g_sock, addr)
if err != nil {
if *g_sock == "unix" && file_exists(addr) {
os.Remove(addr)
}
err = try_run_server()
if err != nil {
fmt.Printf("%s\n", err.Error())
return 1
}
client, err = try_to_connect(*g_sock, addr)
if err != nil {
fmt.Printf("%s\n", err.Error())
return 1
}
}
defer client.Close()
if flag.NArg() > 0 {
switch flag.Arg(0) {
case "autocomplete":
cmd_auto_complete(client)
case "cursortype":
cmd_cursor_type_pkg(client)
case "close":
cmd_close(client)
case "status":
cmd_status(client)
case "drop-cache":
cmd_drop_cache(client)
case "set":
cmd_set(client)
}
}else{
cmd_auto_complete(client)
}
return 0
}
func try_run_server() error {
path := get_executable_filename()
args := []string{os.Args[0], "-s", "-sock", *g_sock, "-addr", *g_addr}
cwd, _ := os.Getwd()
procattr := os.ProcAttr{Dir: cwd, Env: os.Environ(), Files: []*os.File{nil, nil, nil}}
p, err := os.StartProcess(path, args, &procattr)
if err != nil {
return err
}
return p.Release()
}
func try_to_connect(network, address string) (client *rpc.Client, err error) {
t := 0
for {
client, err = rpc.Dial(network, address)
if err != nil && t < 1000 {
time.Sleep(10 * time.Millisecond)
t += 10
continue
}
break
}
return
}
func prepare_file_filename_cursor() ([]byte, string, int) {
var file []byte
var err error
if *g_input != "" {
file, err = ioutil.ReadFile(*g_input)
} else {
file, err = ioutil.ReadAll(os.Stdin)
}
if err != nil {
panic(err.Error())
}
var skipped int
file, skipped = filter_out_shebang(file)
filename := *g_input
cursor := -1
offset := ""
switch flag.NArg() {
case 2:
offset = flag.Arg(1)
case 3:
filename = flag.Arg(1) // Override default filename
offset = flag.Arg(2)
}
if offset != "" {
if offset[0] == 'c' || offset[0] == 'C' {
cursor, _ = strconv.Atoi(offset[1:])
cursor = char_to_byte_offset(file, cursor)
} else {
cursor, _ = strconv.Atoi(offset)
}
}
cursor -= skipped
if filename != "" && !filepath.IsAbs(filename) {
cwd, _ := os.Getwd()
filename = filepath.Join(cwd, filename)
}
return file, filename, cursor
}
//-------------------------------------------------------------------------
// commands
//-------------------------------------------------------------------------
func cmd_status(c *rpc.Client) {
fmt.Printf("%s\n", client_status(c, 0))
}
func cmd_auto_complete(c *rpc.Client) {
var env gocode_env
env.get()
var args, reply int
var err error
args = 0
err = c.Call("RPC.RPC_setid", &args, &reply)
compl_id = reply
compl_win, err = acme.Open(compl_id, nil)
if err != nil {
compl_win, _ = acme.New()
args = compl_win.GetId()
err = c.Call("RPC.RPC_setid", &args, &reply)}
//for acme
var src []byte
var searchpos int
var fname string
if afile, err = acmeCurrentFile(); err != nil {
fmt.Printf("%v", err)
}
fname, src, searchpos = afile.name, afile.body, afile.offset
compl_win.Name("%v+completions", fname)
compl_win.Addr(",")
compl_win.Write("data", nil)
//for acme
write_candidates(client_auto_complete(c, src, fname, searchpos, env))
}
func cmd_cursor_type_pkg(c *rpc.Client) {
var args, reply int
var err error
args = 0
err = c.Call("RPC.RPC_setid", &args, &reply)
compl_id = reply
compl_win, err = acme.Open(compl_id, nil)
if err != nil {
compl_win, _ = acme.New()
args = compl_win.GetId()
err = c.Call("RPC.RPC_setid", &args, &reply)}
//for acme
var src []byte
var searchpos int
var fname string
if afile, err = acmeCurrentFile(); err != nil {
fmt.Printf("%v", err)
}
fname, src, searchpos = afile.name, afile.body, afile.offset
//for acme
typ, pkg := client_cursor_type_pkg(c, src, fname, searchpos)
fmt.Printf("%s,,%s\n", typ, pkg)
}
func cmd_close(c *rpc.Client) {
client_close(c, 0)
}
func cmd_drop_cache(c *rpc.Client) {
client_drop_cache(c, 0)
}
func cmd_set(c *rpc.Client) {
switch flag.NArg() {
case 1:
fmt.Print(client_set(c, "\x00", "\x00"))
case 2:
fmt.Print(client_set(c, flag.Arg(1), "\x00"))
case 3:
fmt.Print(client_set(c, flag.Arg(1), flag.Arg(2)))
}
}
func write_candidates(candidates []candidate, num int) {
var warnings, completions, messages string
compl_win.Ctl("cleartag")
if candidates != nil {
messages = fmt.Sprintf("Found %d candidates:\n", len(candidates))
insertfirst = []byte(candidates[0].Name)
for _, c := range candidates {
abbr := fmt.Sprintf("%s %s %s", c.Class, c.Name, c.Type)
if c.Class == decl_func {
abbr = fmt.Sprintf("%s %s%s", c.Class, c.Name, c.Type[len("func"):])
}
completions = completions + fmt.Sprintf(" %s\n", abbr)
}
needinsert = true
compl_win.Write("body", []byte(messages))
compl_win.Write("body", []byte(completions))
} else {
needinsert = false
warnings = fmt.Sprintf("Nothing to complete.\n")
compl_win.Write("body", []byte(warnings))
}
compl_win.Ctl("clean")
}