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src/bin/proxmox-backup-client.rs - restore: allow to pipe output to stdout

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This commit is contained in:
Dietmar Maurer 2019-07-05 12:14:50 +02:00
parent f8100e9623
commit bf1252619a
1 changed files with 48 additions and 18 deletions
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32
src/bin/proxmox-backup-client.rs
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@ -6,6 +6,7 @@ use failure::*;
use chrono::{Local, TimeZone};
use std::path::{Path, PathBuf};
use std::collections::HashMap;
use std::io::Write;
use proxmox_backup::tools;
use proxmox_backup::cli::*;
@ -615,6 +616,7 @@ fn restore(
};
let target = tools::required_string_param(&param, "target")?;
let target = if target == "-" { None } else { Some(target) };
let keyfile = param["keyfile"].as_str().map(|p| PathBuf::from(p));
@ -656,7 +658,14 @@ fn restore(
None => blob.decode(None)?,
};
if let Some(target) = target {
crate::tools::file_set_contents(target, &raw_data, None)?;
} else {
let stdout = std::io::stdout();
let mut writer = stdout.lock();
writer.write_all(&raw_data)
.map_err(|err| format_err!("unable to pipe data - {}", err))?;
}
} else if server_archive_name.ends_with(".didx") {
let tmpfile = client.download(&server_archive_name, tmpfile).wait()?;
@ -670,6 +679,8 @@ fn restore(
let mut reader = BufferedDynamicReader::new(index, chunk_reader);
if let Some(target) = target {
let feature_flags = pxar::CA_FORMAT_DEFAULT;
let mut decoder = pxar::SequentialDecoder::new(&mut reader, feature_flags, |path| {
if verbose {
@ -679,7 +690,13 @@ fn restore(
});
decoder.restore(Path::new(target))?;
} else {
let stdout = std::io::stdout();
let mut writer = stdout.lock();
std::io::copy(&mut reader, &mut writer)
.map_err(|err| format_err!("unable to pipe data - {}", err))?;
}
} else if server_archive_name.ends_with(".fidx") {
let tmpfile = client.download(&server_archive_name, tmpfile).wait()?;
@ -692,6 +709,7 @@ fn restore(
let mut reader = BufferedFixedReader::new(index, chunk_reader);
if let Some(target) = target {
let mut writer = std::fs::OpenOptions::new()
.write(true)
.create(true)
@ -701,6 +719,13 @@ fn restore(
std::io::copy(&mut reader, &mut writer)
.map_err(|err| format_err!("unable to store data - {}", err))?;
} else {
let stdout = std::io::stdout();
let mut writer = stdout.lock();
std::io::copy(&mut reader, &mut writer)
.map_err(|err| format_err!("unable to pipe data - {}", err))?;
}
} else {
bail!("unknown archive file extension (expected .pxar of .img)");
}
@ -1227,7 +1252,12 @@ fn main() {
.required("repository", REPO_URL_SCHEMA.clone())
.required("snapshot", StringSchema::new("Group/Snapshot path."))
.required("archive-name", StringSchema::new("Backup archive name."))
.required("target", StringSchema::new("Target directory path."))
.required("target", StringSchema::new(r###"Target directory path. Use '-' to write to stdandard output.
We do not extraxt '.pxar' archives when writing to stdandard output.
"###
))
.optional("keyfile", StringSchema::new("Path to encryption key."))
.optional(
"verbose",