[pbs-devel] [PATCH v2 proxmox-backup 06/20] file-restore: add binary and basic commands
Stefan Reiter
s.reiter at proxmox.com
Wed Mar 24 16:18:13 CET 2021
From: Dominik Csapak <d.csapak at proxmox.com>
For now it only supports 'list' and 'extract' commands for 'pxar.didx'
files. This should be the foundation for a general file-restore
interface that is shared with block-level snapshots.
This is packaged as a seperate .deb file, since for block level restore
it will need to depend on pve-qemu-kvm, which we want to seperate from
proxmox-backup-client.
[original code for proxmox-file-restore.rs]
Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
[code cleanups/clippy, use helpers::list_dir_content/ArchiveEntry, no
/block subdir for .fidx files, seperate binary and package]
Signed-off-by: Stefan Reiter <s.reiter at proxmox.com>
---
v2:
* update debian/* with 'proxmox-backup-restore-image' naming
Cargo.toml | 2 +-
Makefile | 9 +-
debian/control | 12 +
debian/control.in | 11 +
debian/proxmox-file-restore.bash-completion | 1 +
debian/proxmox-file-restore.bc | 8 +
debian/proxmox-file-restore.install | 3 +
debian/rules | 7 +-
docs/Makefile | 10 +-
docs/command-line-tools.rst | 5 +
docs/proxmox-file-restore/description.rst | 3 +
docs/proxmox-file-restore/man1.rst | 28 ++
src/api2.rs | 2 +-
src/bin/proxmox-file-restore.rs | 345 ++++++++++++++++++++
zsh-completions/_proxmox-file-restore | 13 +
15 files changed, 452 insertions(+), 7 deletions(-)
create mode 100644 debian/proxmox-file-restore.bash-completion
create mode 100644 debian/proxmox-file-restore.bc
create mode 100644 debian/proxmox-file-restore.install
create mode 100644 docs/proxmox-file-restore/description.rst
create mode 100644 docs/proxmox-file-restore/man1.rst
create mode 100644 src/bin/proxmox-file-restore.rs
create mode 100644 zsh-completions/_proxmox-file-restore
diff --git a/Cargo.toml b/Cargo.toml
index 9483831c..e849406c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -60,7 +60,7 @@ serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
siphasher = "0.3"
syslog = "4.0"
-tokio = { version = "1.0", features = [ "fs", "io-util", "macros", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "time" ] }
+tokio = { version = "1.0", features = [ "fs", "io-util", "io-std", "macros", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "time" ] }
tokio-openssl = "0.6.1"
tokio-stream = "0.1.0"
tokio-util = { version = "0.6", features = [ "codec" ] }
diff --git a/Makefile b/Makefile
index bf41c372..ec52d88f 100644
--- a/Makefile
+++ b/Makefile
@@ -9,6 +9,7 @@ SUBDIRS := etc www docs
# Binaries usable by users
USR_BIN := \
proxmox-backup-client \
+ proxmox-file-restore \
pxar \
proxmox-tape \
pmtx \
@@ -47,9 +48,12 @@ SERVER_DEB=${PACKAGE}-server_${DEB_VERSION}_${ARCH}.deb
SERVER_DBG_DEB=${PACKAGE}-server-dbgsym_${DEB_VERSION}_${ARCH}.deb
CLIENT_DEB=${PACKAGE}-client_${DEB_VERSION}_${ARCH}.deb
CLIENT_DBG_DEB=${PACKAGE}-client-dbgsym_${DEB_VERSION}_${ARCH}.deb
+RESTORE_DEB=proxmox-file-restore_${DEB_VERSION}_${ARCH}.deb
+RESTORE_DBG_DEB=proxmox-file-restore-dbgsym_${DEB_VERSION}_${ARCH}.deb
DOC_DEB=${PACKAGE}-docs_${DEB_VERSION}_all.deb
-DEBS=${SERVER_DEB} ${SERVER_DBG_DEB} ${CLIENT_DEB} ${CLIENT_DBG_DEB}
+DEBS=${SERVER_DEB} ${SERVER_DBG_DEB} ${CLIENT_DEB} ${CLIENT_DBG_DEB} \
+ ${RESTORE_DEB} ${RESTORE_DBG_DEB}
DSC = rust-${PACKAGE}_${DEB_VERSION}.dsc
@@ -152,8 +156,9 @@ install: $(COMPILED_BINS)
$(MAKE) -C docs install
.PHONY: upload
-upload: ${SERVER_DEB} ${CLIENT_DEB} ${DOC_DEB}
+upload: ${SERVER_DEB} ${CLIENT_DEB} ${RESTORE_DEB} ${DOC_DEB}
# check if working directory is clean
git diff --exit-code --stat && git diff --exit-code --stat --staged
tar cf - ${SERVER_DEB} ${SERVER_DBG_DEB} ${DOC_DEB} | ssh -X repoman at repo.proxmox.com upload --product pbs --dist buster
tar cf - ${CLIENT_DEB} ${CLIENT_DBG_DEB} | ssh -X repoman at repo.proxmox.com upload --product "pbs,pve,pmg" --dist buster
+ tar cf - ${RESTORE_DEB} ${RESTORE_DBG_DEB} | ssh -X repoman at repo.proxmox.com upload --product "pbs,pve,pmg" --dist buster
diff --git a/debian/control b/debian/control
index 4cd86124..5c72b986 100644
--- a/debian/control
+++ b/debian/control
@@ -52,6 +52,7 @@ Build-Depends: debhelper (>= 11),
librust-syslog-4+default-dev,
librust-tokio-1+default-dev,
librust-tokio-1+fs-dev,
+ librust-tokio-1+io-std-dev,
librust-tokio-1+io-util-dev,
librust-tokio-1+macros-dev,
librust-tokio-1+net-dev,
@@ -146,3 +147,14 @@ Depends: libjs-extjs,
Architecture: all
Description: Proxmox Backup Documentation
This package contains the Proxmox Backup Documentation files.
+
+Package: proxmox-file-restore
+Architecture: any
+Depends: ${misc:Depends},
+ ${shlibs:Depends},
+ proxmox-backup-restore-image,
+Recommends: pve-qemu-kvm (>= 5.0.0-9),
+Description: PBS single file restore for pxar and block device backups
+ This package contains the Proxmox Backup single file restore client for
+ restoring individual files and folders from both host/container and VM/block
+ device backups. It includes a block device restore driver using QEMU.
diff --git a/debian/control.in b/debian/control.in
index c6aee8ca..5d344664 100644
--- a/debian/control.in
+++ b/debian/control.in
@@ -43,3 +43,14 @@ Depends: libjs-extjs,
Architecture: all
Description: Proxmox Backup Documentation
This package contains the Proxmox Backup Documentation files.
+
+Package: proxmox-file-restore
+Architecture: any
+Depends: ${misc:Depends},
+ ${shlibs:Depends},
+ proxmox-backup-restore-image,
+Recommends: pve-qemu-kvm (>= 5.0.0-9),
+Description: PBS single file restore for pxar and block device backups
+ This package contains the Proxmox Backup single file restore client for
+ restoring individual files and folders from both host/container and VM/block
+ device backups. It includes a block device restore driver using QEMU.
diff --git a/debian/proxmox-file-restore.bash-completion b/debian/proxmox-file-restore.bash-completion
new file mode 100644
index 00000000..7160209c
--- /dev/null
+++ b/debian/proxmox-file-restore.bash-completion
@@ -0,0 +1 @@
+debian/proxmox-file-restore.bc proxmox-file-restore
diff --git a/debian/proxmox-file-restore.bc b/debian/proxmox-file-restore.bc
new file mode 100644
index 00000000..646ebdd2
--- /dev/null
+++ b/debian/proxmox-file-restore.bc
@@ -0,0 +1,8 @@
+# proxmox-file-restore bash completion
+
+# see http://tiswww.case.edu/php/chet/bash/FAQ
+# and __ltrim_colon_completions() in /usr/share/bash-completion/bash_completion
+# this modifies global var, but I found no better way
+COMP_WORDBREAKS=${COMP_WORDBREAKS//:}
+
+complete -C 'proxmox-file-restore bashcomplete' proxmox-file-restore
diff --git a/debian/proxmox-file-restore.install b/debian/proxmox-file-restore.install
new file mode 100644
index 00000000..2082e46b
--- /dev/null
+++ b/debian/proxmox-file-restore.install
@@ -0,0 +1,3 @@
+usr/bin/proxmox-file-restore
+usr/share/man/man1/proxmox-file-restore.1
+usr/share/zsh/vendor-completions/_proxmox-file-restore
diff --git a/debian/rules b/debian/rules
index 22671c0a..ce2db72e 100755
--- a/debian/rules
+++ b/debian/rules
@@ -52,8 +52,11 @@ override_dh_dwz:
override_dh_strip:
dh_strip
- for exe in $$(find debian/proxmox-backup-client/usr \
- debian/proxmox-backup-server/usr -executable -type f); do \
+ for exe in $$(find \
+ debian/proxmox-backup-client/usr \
+ debian/proxmox-backup-server/usr \
+ debian/proxmox-file-restore/usr \
+ -executable -type f); do \
debian/scripts/elf-strip-unused-dependencies.sh "$$exe" || true; \
done
diff --git a/docs/Makefile b/docs/Makefile
index 05352b48..85d44ee4 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -5,6 +5,7 @@ GENERATED_SYNOPSIS := \
proxmox-backup-client/synopsis.rst \
proxmox-backup-client/catalog-shell-synopsis.rst \
proxmox-backup-manager/synopsis.rst \
+ proxmox-file-restore/synopsis.rst \
pxar/synopsis.rst \
pmtx/synopsis.rst \
pmt/synopsis.rst \
@@ -25,7 +26,8 @@ MAN1_PAGES := \
proxmox-tape.1 \
proxmox-backup-proxy.1 \
proxmox-backup-client.1 \
- proxmox-backup-manager.1
+ proxmox-backup-manager.1 \
+ proxmox-file-restore.1
MAN5_PAGES := \
media-pool.cfg.5 \
@@ -179,6 +181,12 @@ proxmox-backup-manager.1: proxmox-backup-manager/man1.rst proxmox-backup-manage
proxmox-backup-proxy.1: proxmox-backup-proxy/man1.rst proxmox-backup-proxy/description.rst
rst2man $< >$@
+proxmox-file-restore/synopsis.rst: ${COMPILEDIR}/proxmox-file-restore
+ ${COMPILEDIR}/proxmox-file-restore printdoc > proxmox-file-restore/synopsis.rst
+
+proxmox-file-restore.1: proxmox-file-restore/man1.rst proxmox-file-restore/description.rst proxmox-file-restore/synopsis.rst
+ rst2man $< >$@
+
.PHONY: onlinehelpinfo
onlinehelpinfo:
@echo "Generating OnlineHelpInfo.js..."
diff --git a/docs/command-line-tools.rst b/docs/command-line-tools.rst
index 9b0a1290..bf3a92cc 100644
--- a/docs/command-line-tools.rst
+++ b/docs/command-line-tools.rst
@@ -6,6 +6,11 @@ Command Line Tools
.. include:: proxmox-backup-client/description.rst
+``proxmox-file-restore``
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. include:: proxmox-file-restore/description.rst
+
``proxmox-backup-manager``
~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/docs/proxmox-file-restore/description.rst b/docs/proxmox-file-restore/description.rst
new file mode 100644
index 00000000..605dd12c
--- /dev/null
+++ b/docs/proxmox-file-restore/description.rst
@@ -0,0 +1,3 @@
+Command line tool for restoring files and directories from PBS archives. In contrast to
+proxmox-backup-client, this supports both container/host and VM backups.
+
diff --git a/docs/proxmox-file-restore/man1.rst b/docs/proxmox-file-restore/man1.rst
new file mode 100644
index 00000000..fe3625b1
--- /dev/null
+++ b/docs/proxmox-file-restore/man1.rst
@@ -0,0 +1,28 @@
+==========================
+proxmox-file-restore
+==========================
+
+.. include:: ../epilog.rst
+
+-----------------------------------------------------------------------
+Command line tool for restoring files and directories from PBS archives
+-----------------------------------------------------------------------
+
+:Author: |AUTHOR|
+:Version: Version |VERSION|
+:Manual section: 1
+
+
+Synopsis
+==========
+
+.. include:: synopsis.rst
+
+
+Description
+============
+
+.. include:: description.rst
+
+
+.. include:: ../pbs-copyright.rst
diff --git a/src/api2.rs b/src/api2.rs
index b7230f75..132e2c2a 100644
--- a/src/api2.rs
+++ b/src/api2.rs
@@ -12,7 +12,7 @@ pub mod version;
pub mod ping;
pub mod pull;
pub mod tape;
-mod helpers;
+pub mod helpers;
use proxmox::api::router::SubdirMap;
use proxmox::api::Router;
diff --git a/src/bin/proxmox-file-restore.rs b/src/bin/proxmox-file-restore.rs
new file mode 100644
index 00000000..ede6a5b8
--- /dev/null
+++ b/src/bin/proxmox-file-restore.rs
@@ -0,0 +1,345 @@
+use std::ffi::OsStr;
+use std::os::unix::ffi::OsStrExt;
+use std::path::PathBuf;
+use std::sync::Arc;
+
+use anyhow::{bail, format_err, Error};
+use serde_json::Value;
+
+use proxmox::api::{
+ api,
+ cli::{run_cli_command, CliCommand, CliCommandMap, CliEnvironment},
+};
+use pxar::accessor::aio::Accessor;
+
+use proxmox_backup::api2::{helpers, types::ArchiveEntry};
+use proxmox_backup::backup::{
+ decrypt_key, BackupDir, BufferedDynamicReader, CatalogReader, CryptConfig, CryptMode,
+ DirEntryAttribute, IndexFile, LocalDynamicReadAt, CATALOG_NAME,
+};
+use proxmox_backup::client::{BackupReader, RemoteChunkReader};
+use proxmox_backup::pxar::{create_zip, extract_sub_dir};
+use proxmox_backup::tools;
+
+// use "pub" so rust doesn't complain about "unused" functions in the module
+pub mod proxmox_client_tools;
+use proxmox_client_tools::{
+ complete_group_or_snapshot, complete_repository, connect, extract_repository_from_value,
+ key_source::{
+ crypto_parameters, format_key_source, get_encryption_key_password, KEYFD_SCHEMA,
+ KEYFILE_SCHEMA,
+ },
+ REPO_URL_SCHEMA,
+};
+
+enum ExtractPath {
+ ListArchives,
+ Pxar(String, Vec<u8>),
+}
+
+fn parse_path(path: String, base64: bool) -> Result<ExtractPath, Error> {
+ let mut bytes = if base64 {
+ base64::decode(path)?
+ } else {
+ path.into_bytes()
+ };
+
+ if bytes == b"/" {
+ return Ok(ExtractPath::ListArchives);
+ }
+
+ while bytes.len() > 0 && bytes[0] == b'/' {
+ bytes.remove(0);
+ }
+
+ let (file, path) = {
+ let slash_pos = bytes.iter().position(|c| *c == b'/').unwrap_or(bytes.len());
+ let path = bytes.split_off(slash_pos);
+ let file = String::from_utf8(bytes)?;
+ (file, path)
+ };
+
+ if file.ends_with(".pxar.didx") {
+ Ok(ExtractPath::Pxar(file, path))
+ } else {
+ bail!("'{}' is not supported for file-restore", file);
+ }
+}
+
+#[api(
+ input: {
+ properties: {
+ repository: {
+ schema: REPO_URL_SCHEMA,
+ optional: true,
+ },
+ snapshot: {
+ type: String,
+ description: "Group/Snapshot path.",
+ },
+ "path": {
+ description: "Path to restore. Directories will be restored as .zip files.",
+ type: String,
+ },
+ "base64": {
+ type: Boolean,
+ description: "If set, 'path' will be interpreted as base64 encoded.",
+ optional: true,
+ default: false,
+ },
+ keyfile: {
+ schema: KEYFILE_SCHEMA,
+ optional: true,
+ },
+ "keyfd": {
+ schema: KEYFD_SCHEMA,
+ optional: true,
+ },
+ "crypt-mode": {
+ type: CryptMode,
+ optional: true,
+ },
+ }
+ }
+)]
+/// List a directory from a backup snapshot.
+async fn list(param: Value) -> Result<Vec<ArchiveEntry>, Error> {
+ let repo = extract_repository_from_value(¶m)?;
+ let base64 = param["base64"].as_bool().unwrap_or(false);
+ let path = parse_path(
+ tools::required_string_param(¶m, "path")?.to_string(),
+ base64,
+ )?;
+ let snapshot: BackupDir = tools::required_string_param(¶m, "snapshot")?.parse()?;
+
+ let crypto = crypto_parameters(¶m)?;
+ let crypt_config = match crypto.enc_key {
+ None => None,
+ Some(ref key) => {
+ let (key, _, _) =
+ decrypt_key(&key.key, &get_encryption_key_password).map_err(|err| {
+ eprintln!("{}", format_key_source(&key.source, "encryption"));
+ err
+ })?;
+ Some(Arc::new(CryptConfig::new(key)?))
+ }
+ };
+
+ let client = connect(&repo)?;
+ let client = BackupReader::start(
+ client,
+ crypt_config.clone(),
+ repo.store(),
+ &snapshot.group().backup_type(),
+ &snapshot.group().backup_id(),
+ snapshot.backup_time(),
+ true,
+ )
+ .await?;
+
+ let (manifest, _) = client.download_manifest().await?;
+ manifest.check_fingerprint(crypt_config.as_ref().map(Arc::as_ref))?;
+
+ match path {
+ ExtractPath::ListArchives => {
+ let mut entries = vec![];
+ for file in manifest.files() {
+ match file.filename.rsplitn(2, '.').next().unwrap() {
+ "didx" => {}
+ "fidx" => {}
+ _ => continue, // ignore all non fidx/didx
+ }
+ let path = format!("/{}", file.filename);
+ let attr = DirEntryAttribute::Directory { start: 0 };
+ entries.push(ArchiveEntry::new(path.as_bytes(), &attr));
+ }
+
+ Ok(entries)
+ }
+ ExtractPath::Pxar(file, mut path) => {
+ let index = client
+ .download_dynamic_index(&manifest, CATALOG_NAME)
+ .await?;
+ let most_used = index.find_most_used_chunks(8);
+ let file_info = manifest.lookup_file_info(&CATALOG_NAME)?;
+ let chunk_reader = RemoteChunkReader::new(
+ client.clone(),
+ crypt_config,
+ file_info.chunk_crypt_mode(),
+ most_used,
+ );
+ let reader = BufferedDynamicReader::new(index, chunk_reader);
+ let mut catalog_reader = CatalogReader::new(reader);
+
+ let mut fullpath = file.into_bytes();
+ fullpath.append(&mut path);
+
+ helpers::list_dir_content(&mut catalog_reader, &fullpath)
+ }
+ }
+}
+
+#[api(
+ input: {
+ properties: {
+ repository: {
+ schema: REPO_URL_SCHEMA,
+ optional: true,
+ },
+ snapshot: {
+ type: String,
+ description: "Group/Snapshot path.",
+ },
+ "path": {
+ description: "Path to restore. Directories will be restored as .zip files if extracted to stdout.",
+ type: String,
+ },
+ "base64": {
+ type: Boolean,
+ description: "If set, 'path' will be interpreted as base64 encoded.",
+ optional: true,
+ default: false,
+ },
+ target: {
+ type: String,
+ optional: true,
+ description: "Target directory path. Use '-' to write to standard output.",
+ },
+ keyfile: {
+ schema: KEYFILE_SCHEMA,
+ optional: true,
+ },
+ "keyfd": {
+ schema: KEYFD_SCHEMA,
+ optional: true,
+ },
+ "crypt-mode": {
+ type: CryptMode,
+ optional: true,
+ },
+ verbose: {
+ type: Boolean,
+ description: "Print verbose information",
+ optional: true,
+ default: false,
+ }
+ }
+ }
+)]
+/// Restore files from a backup snapshot.
+async fn extract(param: Value) -> Result<Value, Error> {
+ let repo = extract_repository_from_value(¶m)?;
+ let verbose = param["verbose"].as_bool().unwrap_or(false);
+ let base64 = param["base64"].as_bool().unwrap_or(false);
+ let orig_path = tools::required_string_param(¶m, "path")?.to_string();
+ let path = parse_path(orig_path.clone(), base64)?;
+
+ let target = match param["target"].as_str() {
+ Some(target) if target == "-" => None,
+ Some(target) => Some(PathBuf::from(target)),
+ None => Some(std::env::current_dir()?),
+ };
+
+ let snapshot: BackupDir = tools::required_string_param(¶m, "snapshot")?.parse()?;
+
+ let crypto = crypto_parameters(¶m)?;
+ let crypt_config = match crypto.enc_key {
+ None => None,
+ Some(ref key) => {
+ let (key, _, _) =
+ decrypt_key(&key.key, &get_encryption_key_password).map_err(|err| {
+ eprintln!("{}", format_key_source(&key.source, "encryption"));
+ err
+ })?;
+ Some(Arc::new(CryptConfig::new(key)?))
+ }
+ };
+
+ match path {
+ ExtractPath::Pxar(archive_name, path) => {
+ let client = connect(&repo)?;
+ let client = BackupReader::start(
+ client,
+ crypt_config.clone(),
+ repo.store(),
+ &snapshot.group().backup_type(),
+ &snapshot.group().backup_id(),
+ snapshot.backup_time(),
+ true,
+ )
+ .await?;
+ let (manifest, _) = client.download_manifest().await?;
+ let file_info = manifest.lookup_file_info(&archive_name)?;
+ let index = client
+ .download_dynamic_index(&manifest, &archive_name)
+ .await?;
+ let most_used = index.find_most_used_chunks(8);
+ let chunk_reader = RemoteChunkReader::new(
+ client.clone(),
+ crypt_config,
+ file_info.chunk_crypt_mode(),
+ most_used,
+ );
+ let reader = BufferedDynamicReader::new(index, chunk_reader);
+
+ let archive_size = reader.archive_size();
+ let reader = LocalDynamicReadAt::new(reader);
+ let decoder = Accessor::new(reader, archive_size).await?;
+
+ let root = decoder.open_root().await?;
+ let file = root
+ .lookup(OsStr::from_bytes(&path))
+ .await?
+ .ok_or(format_err!("error opening '{:?}'", path))?;
+
+ if let Some(target) = target {
+ extract_sub_dir(target, decoder, OsStr::from_bytes(&path), verbose).await?;
+ } else {
+ match file.kind() {
+ pxar::EntryKind::File { .. } => {
+ tokio::io::copy(&mut file.contents().await?, &mut tokio::io::stdout())
+ .await?;
+ }
+ _ => {
+ create_zip(
+ tokio::io::stdout(),
+ decoder,
+ OsStr::from_bytes(&path),
+ verbose,
+ )
+ .await?;
+ }
+ }
+ }
+ }
+ _ => {
+ bail!("cannot extract '{}'", orig_path);
+ }
+ }
+
+ Ok(Value::Null)
+}
+
+fn main() {
+ let list_cmd_def = CliCommand::new(&API_METHOD_LIST)
+ .arg_param(&["snapshot", "path"])
+ .completion_cb("repository", complete_repository)
+ .completion_cb("snapshot", complete_group_or_snapshot);
+
+ let restore_cmd_def = CliCommand::new(&API_METHOD_EXTRACT)
+ .arg_param(&["snapshot", "path", "target"])
+ .completion_cb("repository", complete_repository)
+ .completion_cb("snapshot", complete_group_or_snapshot)
+ .completion_cb("target", tools::complete_file_name);
+
+ let cmd_def = CliCommandMap::new()
+ .insert("list", list_cmd_def)
+ .insert("extract", restore_cmd_def);
+
+ let rpcenv = CliEnvironment::new();
+ run_cli_command(
+ cmd_def,
+ rpcenv,
+ Some(|future| proxmox_backup::tools::runtime::main(future)),
+ );
+}
diff --git a/zsh-completions/_proxmox-file-restore b/zsh-completions/_proxmox-file-restore
new file mode 100644
index 00000000..e2e48c7a
--- /dev/null
+++ b/zsh-completions/_proxmox-file-restore
@@ -0,0 +1,13 @@
+#compdef _proxmox-backup-client() proxmox-backup-client
+
+function _proxmox-backup-client() {
+ local cwords line point cmd curr prev
+ cworkds=${#words[@]}
+ line=$words
+ point=${#line}
+ cmd=${words[1]}
+ curr=${words[cwords]}
+ prev=${words[cwords-1]}
+ compadd -- $(COMP_CWORD="$cwords" COMP_LINE="$line" COMP_POINT="$point" \
+ proxmox-file-restore bashcomplete "$cmd" "$curr" "$prev")
+}
--
2.20.1
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