mirror of
https://git.proxmox.com/git/vma-to-pbs
synced 2025-04-28 12:41:11 +00:00
switch argument handling from clap to pico-args
Signed-off-by: Filip Schauer <f.schauer@proxmox.com>
This commit is contained in:
Filip Schauer
Wolfgang Bumiller
parent
715c658e0e
commit
80fb0a4a79
@ -7,7 +7,7 @@ edition = "2021"
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[dependencies]
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anyhow = "1.0"
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bincode = "1.3"
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clap = { version = "4.0.32", features = ["cargo", "env"] }
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pico-args = "0.4"
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md5 = "0.7.0"
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scopeguard = "1.1.0"
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serde = "1.0"
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228
src/main.rs
228
src/main.rs
@ -1,91 +1,106 @@
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use anyhow::{Context, Error};
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use clap::{command, Arg, ArgAction};
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use std::ffi::OsString;
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use anyhow::{bail, Context, Error};
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use proxmox_sys::linux::tty;
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mod vma;
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mod vma2pbs;
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use vma2pbs::{backup_vma_to_pbs, BackupVmaToPbsArgs};
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fn main() -> Result<(), Error> {
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let matches = command!()
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.arg(
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Arg::new("repository")
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.long("repository")
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.value_name("auth_id@host:port:datastore")
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.help("Repository URL")
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.required(true),
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)
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.arg(
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Arg::new("vmid")
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.long("vmid")
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.value_name("VMID")
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.help("Backup ID")
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.required(true),
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)
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.arg(
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Arg::new("fingerprint")
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.long("fingerprint")
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.value_name("FINGERPRINT")
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.help("Proxmox Backup Server Fingerprint")
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.env("PBS_FINGERPRINT"),
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)
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.arg(
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Arg::new("keyfile")
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.long("keyfile")
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.value_name("KEYFILE")
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.help("Key file"),
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)
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.arg(
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Arg::new("master_keyfile")
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.long("master_keyfile")
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.value_name("MASTER_KEYFILE")
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.help("Master key file"),
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)
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.arg(
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Arg::new("compress")
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.long("compress")
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.short('c')
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.help("Compress the Backup")
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.action(ArgAction::SetTrue),
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)
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.arg(
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Arg::new("encrypt")
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.long("encrypt")
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.short('e')
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.help("Encrypt the Backup")
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.action(ArgAction::SetTrue),
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)
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.arg(
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Arg::new("password-file")
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.long("password-file")
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.value_name("PASSWORD_FILE")
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.help("Password file"),
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)
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.arg(
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Arg::new("key-password-file")
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.long("key-password-file")
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.value_name("KEY_PASSWORD_FILE")
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.help("Key password file"),
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)
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.arg(Arg::new("vma_file"))
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.get_matches();
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const CMD_HELP: &str = "\
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Usage: vma-to-pbs [OPTIONS] --repository <auth_id@host:port:datastore> --vmid <VMID> [vma_file]
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let pbs_repository = matches.get_one::<String>("repository").unwrap().to_string();
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let vmid = matches.get_one::<String>("vmid").unwrap().to_string();
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Arguments:
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[vma_file]
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let fingerprint = matches
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.get_one::<String>("fingerprint")
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.context("Fingerprint not set. Use $PBS_FINGERPRINT or --fingerprint")?
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.to_string();
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Options:
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--repository <auth_id@host:port:datastore>
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Repository URL
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--vmid <VMID>
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Backup ID
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--fingerprint <FINGERPRINT>
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Proxmox Backup Server Fingerprint [env: PBS_FINGERPRINT=]
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--keyfile <KEYFILE>
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Key file
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--master_keyfile <MASTER_KEYFILE>
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Master key file
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-c, --compress
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Compress the Backup
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-e, --encrypt
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Encrypt the Backup
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--password_file <PASSWORD_FILE>
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Password file
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--key_password_file <KEY_PASSWORD_FILE>
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Key password file
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-h, --help
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Print help
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-V, --version
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Print version
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";
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let keyfile = matches.get_one::<String>("keyfile");
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let master_keyfile = matches.get_one::<String>("master_keyfile");
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let compress = matches.get_flag("compress");
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let encrypt = matches.get_flag("encrypt");
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fn parse_args() -> Result<BackupVmaToPbsArgs, Error> {
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let mut args: Vec<_> = std::env::args_os().collect();
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args.remove(0); // remove the executable path.
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let vma_file_path = matches.get_one::<String>("vma_file");
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let mut first_later_args_index = 0;
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let options = ["-h", "--help", "-c", "--compress", "-e", "--encrypt"];
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let password_file = matches.get_one::<String>("password-file");
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for (i, arg) in args.iter().enumerate() {
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if let Some(arg) = arg.to_str() {
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if arg.starts_with('-') {
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if arg == "--" {
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args.remove(i);
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first_later_args_index = i;
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break;
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}
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first_later_args_index = i + 1;
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if !options.contains(&arg) {
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first_later_args_index += 1;
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}
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}
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}
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}
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let forwarded_args = if first_later_args_index > args.len() {
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Vec::new()
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} else {
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args.split_off(first_later_args_index)
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};
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let mut args = pico_args::Arguments::from_vec(args);
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if args.contains(["-h", "--help"]) {
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print!("{CMD_HELP}");
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std::process::exit(0);
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}
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let pbs_repository = args.value_from_str("--repository")?;
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let vmid = args.value_from_str("--vmid")?;
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let fingerprint = args.opt_value_from_str("--fingerprint")?;
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let keyfile = args.opt_value_from_str("--keyfile")?;
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let master_keyfile = args.opt_value_from_str("--master_keyfile")?;
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let compress = args.contains(["-c", "--compress"]);
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let encrypt = args.contains(["-e", "--encrypt"]);
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let password_file: Option<OsString> = args.opt_value_from_str("--password-file")?;
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let key_password_file: Option<OsString> = args.opt_value_from_str("--key-password-file")?;
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if !args.finish().is_empty() {
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bail!("unexpected extra arguments, use '-h' for usage");
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}
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let fingerprint = match fingerprint {
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Some(v) => v,
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None => std::env::var("PBS_FINGERPRINT")
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.context("Fingerprint not set. Use $PBS_FINGERPRINT or --fingerprint")?,
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};
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if forwarded_args.len() > 1 {
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bail!("too many arguments");
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}
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let vma_file_path = forwarded_args.first();
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let pbs_password = match password_file {
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Some(password_file) => {
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@ -101,46 +116,65 @@ fn main() -> Result<(), Error> {
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password
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}
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None => String::from_utf8(tty::read_password("Password: ")?)?,
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None => {
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if vma_file_path.is_none() {
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bail!(
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"Please use --password-file to provide the password \
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when passing the VMA file to stdin"
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);
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}
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String::from_utf8(tty::read_password("Password: ")?)?
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}
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};
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let key_password = match keyfile {
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Some(_) => {
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let key_password_file = matches.get_one::<String>("key_password_file");
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Some(_) => Some(match key_password_file {
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Some(key_password_file) => {
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let mut key_password = std::fs::read_to_string(key_password_file)
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.context("Could not read key password file")?;
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Some(match key_password_file {
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Some(key_password_file) => {
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let mut key_password = std::fs::read_to_string(key_password_file)
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.context("Could not read key password file")?;
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if key_password.ends_with('\n') || key_password.ends_with('\r') {
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if key_password.ends_with('\n') || key_password.ends_with('\r') {
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key_password.pop();
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if key_password.ends_with('\r') {
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key_password.pop();
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if key_password.ends_with('\r') {
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key_password.pop();
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}
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}
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key_password
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}
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None => String::from_utf8(tty::read_password("Key Password: ")?)?,
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})
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}
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key_password
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}
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None => {
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if vma_file_path.is_none() {
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bail!(
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"Please use --key-password-file to provide the password \
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when passing the VMA file to stdin"
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);
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}
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String::from_utf8(tty::read_password("Key Password: ")?)?
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}
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}),
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None => None,
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};
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let args = BackupVmaToPbsArgs {
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let options = BackupVmaToPbsArgs {
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vma_file_path: vma_file_path.cloned(),
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pbs_repository,
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backup_id: vmid,
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pbs_password,
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keyfile: keyfile.cloned(),
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keyfile,
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key_password,
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master_keyfile: master_keyfile.cloned(),
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master_keyfile,
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fingerprint,
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compress,
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encrypt,
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};
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Ok(options)
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}
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fn main() -> Result<(), Error> {
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let args = parse_args()?;
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backup_vma_to_pbs(args)?;
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Ok(())
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@ -1,7 +1,7 @@
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use std::cell::RefCell;
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use std::collections::hash_map::Entry;
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use std::collections::HashMap;
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use std::ffi::{c_char, CStr, CString};
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use std::ffi::{c_char, CStr, CString, OsString};
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use std::fs::File;
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use std::io::{stdin, BufRead, BufReader, Read};
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use std::ptr;
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@ -22,7 +22,7 @@ use crate::vma::VmaReader;
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const VMA_CLUSTER_SIZE: usize = 65536;
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pub struct BackupVmaToPbsArgs {
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pub vma_file_path: Option<String>,
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pub vma_file_path: Option<OsString>,
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pub pbs_repository: String,
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pub backup_id: String,
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pub pbs_password: String,
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