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pxar: add command 'mount' to cli of pxar

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Allows to mount an archive to a specified mountpoint via the cli.
Once the archive is mounted, the process is send to the background.
By passing the --verbose flag, the process is kept in foreground and
debug output is provided.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
This commit is contained in:
Christian Ebner 2019-08-08 12:49:20 +02:00 committed by Dietmar Maurer
parent 02ba8a5d11
commit f71e8cc96f
1 changed files with 35 additions and 0 deletions
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35
src/bin/pxar.rs
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@ -12,6 +12,7 @@ use serde_json::{Value};
use std::io::Write;
use std::path::{Path, PathBuf};
use std::fs::OpenOptions;
use std::ffi::OsStr;
use std::sync::Arc;
use std::os::unix::fs::OpenOptionsExt;
use std::os::unix::io::AsRawFd;
@ -216,6 +217,27 @@ fn create_archive(
Ok(Value::Null)
}
/// Mount the archive to the provided mountpoint via FUSE.
fn mount_archive(
param: Value,
_info: &ApiMethod,
_rpcenv: &mut dyn RpcEnvironment,
) -> Result<Value, Error> {
let archive = tools::required_string_param(&param, "archive")?;
let mountpoint = tools::required_string_param(&param, "mountpoint")?;
let verbose = param["verbose"].as_bool().unwrap_or(false);
let archive = Path::new(archive);
let mountpoint = Path::new(mountpoint);
let options = OsStr::new("ro,default_permissions");
let mut session = pxar::fuse::Session::new(&archive, &options, verbose)
.map_err(|err| format_err!("pxar mount failed: {}", err))?;
session.mount(&mountpoint)?;
session.run_loop()?;
Ok(Value::Null)
}
fn main() {
let cmd_def = CliCommandMap::new()
@ -267,6 +289,19 @@ fn main() {
.completion_cb("files-from", tools::complete_file_name)
.into()
)
.insert("mount", CliCommand::new(
ApiMethod::new(
mount_archive,
ObjectSchema::new("Mount the archive as filesystem via FUSE.")
.required("archive", StringSchema::new("Archive name."))
.required("mountpoint", StringSchema::new("Mountpoint for the filesystem root."))
.optional("verbose", BooleanSchema::new("Verbose output, keeps process running in foreground.").default(false))
))
.arg_param(vec!["archive", "mountpoint"])
.completion_cb("archive", tools::complete_file_name)
.completion_cb("mountpoint", tools::complete_file_name)
.into()
)
.insert("list", CliCommand::new(
ApiMethod::new(
dump_archive,