mirror of
https://github.com/rwinkhart/MUTN.git
synced 2026-08-28 04:46:41 -04:00
97 lines
3.9 KiB
Go
97 lines
3.9 KiB
Go
package main
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import (
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"bufio"
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"fmt"
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"github.com/rwinkhart/MUTN/src/backend"
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"github.com/rwinkhart/MUTN/src/cli"
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"github.com/rwinkhart/MUTN/src/sync"
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"os"
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"strconv"
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"strings"
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)
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// Field separator key:
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// \x1d = path separator
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// \x1e = space/list separator
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// \x1f = misc. field separator (if \x1e is already used)
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func main() {
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args := os.Args
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if len(args) < 2 {
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helpServer()
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}
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// check if stdin was provided
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stdinInfo, _ := os.Stdin.Stat()
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stdinPresent := stdinInfo.Mode()&os.ModeNamedPipe != 0
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var stdin []string
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if stdinPresent {
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// read stdin, appending each line to the stdin slice
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scanner := bufio.NewScanner(os.Stdin)
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for scanner.Scan() {
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stdin = append(stdin, scanner.Text())
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}
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}
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switch args[1] {
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case "fetch":
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// print all information needed for syncing to stdout for interpretation by the client
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// stdin[0] is expected to be the device ID
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sync.GetRemoteDataFromServer(stdin[0])
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case "rename":
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// move an entry to a new location before using fallthrough to add its previous iteration to the deletions directory
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// stdin[0] is evaluated after fallthrough
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// stdin[1] is expected to be the OLD incomplete target location with "\x1d" representing path separators - always pass in UNIX format
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// stdin[2] is expected to be the NEW incomplete target location with "\x1d" representing path separators - always pass in UNIX format
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sync.Rename(strings.ReplaceAll(stdin[1], "\x1d", "/"), strings.ReplaceAll(stdin[2], "\x1d", "/"), true)
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fallthrough // fallthrough to add the old entry to the deletions directory
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case "shear":
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// shear an entry from the server and add it to the deletions directory
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// stdin[0] is expected to be the device ID
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// stdin[1] is expected to be the incomplete target location with "\x1d" representing path separators - always pass in UNIX format
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sync.ShearLocal(strings.ReplaceAll(stdin[1], "\x1d", "/"), stdin[0])
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case "addfolder":
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// add a new folder to the server
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// stdin[0] is expected to be the incomplete target location with "\x1d" representing path separators - always pass in UNIX format
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sync.AddFolderLocal(strings.ReplaceAll(stdin[0], "\x1d", "/"))
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case "register":
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// register a new device ID
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// stdin[0] is expected to be the device ID
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_, _ = os.Create(backend.ConfigDir + backend.PathSeparator + "devices" + backend.PathSeparator + stdin[0]) // error ignored; failure unlikely to occur if init was successful; "register" is not a user-facing argument and thus the error would not be visible
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// print EntryRoot and bool indicating OS type to stdout for client to store in config
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fmt.Print(backend.EntryRoot + "\x1e" + strconv.FormatBool(backend.IsWindows))
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case "init":
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// create the necessary directories for libmuttonserver to function
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backend.DirInit(false)
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_ = os.MkdirAll(backend.ConfigDir+backend.PathSeparator+"deletions", 0700) // error ignored; failure would have occurred by this point in backend.DirInit
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fmt.Println("libmuttonserver directories initialized")
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case "version", "-v":
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versionServer()
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default:
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helpServer()
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}
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}
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func helpServer() {
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fmt.Print(cli.AnsiBold + "\nlibmuttonserver | Copyright (c) 2024 Randall Winkhart\n" + backend.AnsiReset + `
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This software exists under the MIT license; you may redistribute it under certain conditions.
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This program comes with absolutely no warranty; type "libmuttonserver version" for details.
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` + cli.AnsiBold + "Usage:" + backend.AnsiReset + ` libmuttonserver <argument>
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` + cli.AnsiBold + "Arguments (user):" + backend.AnsiReset + `
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help|-h Bring up this menu
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version|-v Display version and license information
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init Create the necessary directories for libmuttonserver to function` + "\n\n")
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os.Exit(0)
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}
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func versionServer() {
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cli.MITLicense()
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fmt.Print(cli.AnsiBold + "\n\n libmuttonserver" + backend.AnsiReset + " Version " + backend.LibmuttonVersion + `
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Copyright (c) 2024 Randall Winkhart` + "\n\n")
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}
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