pbs-config/src/remote.rs

   1 use std::collections::HashMap;
   2
   3 use anyhow::Error;
   4 use lazy_static::lazy_static;
   5
   6 use proxmox_schema::*;
   7 use proxmox_section_config::{SectionConfig, SectionConfigData, SectionConfigPlugin};
   8
   9 use pbs_api_types::{Remote, REMOTE_ID_SCHEMA};
  10
  11 use crate::{open_backup_lockfile, BackupLockGuard};
  12
  13 lazy_static! {
  14     pub static ref CONFIG: SectionConfig = init();
  15 }
  16
  17 fn init() -> SectionConfig {
  18     let obj_schema = match Remote::API_SCHEMA {
  19         Schema::AllOf(ref allof_schema) => allof_schema,
  20         _ => unreachable!(),
  21     };
  22
  23     let plugin = SectionConfigPlugin::new("remote".to_string(), Some("name".to_string()), obj_schema);
  24     let mut config = SectionConfig::new(&REMOTE_ID_SCHEMA);
  25     config.register_plugin(plugin);
  26
  27     config
  28 }
  29
  30 pub const REMOTE_CFG_FILENAME: &str = "/etc/proxmox-backup/remote.cfg";
  31 pub const REMOTE_CFG_LOCKFILE: &str = "/etc/proxmox-backup/.remote.lck";
  32
  33 /// Get exclusive lock
  34 pub fn lock_config() -> Result<BackupLockGuard, Error> {
  35     open_backup_lockfile(REMOTE_CFG_LOCKFILE, None, true)
  36 }
  37
  38 pub fn config() -> Result<(SectionConfigData, [u8;32]), Error> {
  39
  40     let content = proxmox::tools::fs::file_read_optional_string(REMOTE_CFG_FILENAME)?
  41         .unwrap_or_else(|| "".to_string());
  42
  43     let digest = openssl::sha::sha256(content.as_bytes());
  44     let data = CONFIG.parse(REMOTE_CFG_FILENAME, &content)?;
  45     Ok((data, digest))
  46 }
  47
  48 pub fn save_config(config: &SectionConfigData) -> Result<(), Error> {
  49     let raw = CONFIG.write(REMOTE_CFG_FILENAME, &config)?;
  50     crate::replace_backup_config(REMOTE_CFG_FILENAME, raw.as_bytes())
  51 }
  52
  53 // shell completion helper
  54 pub fn complete_remote_name(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
  55     match config() {
  56         Ok((data, _digest)) => data.sections.iter().map(|(id, _)| id.to_string()).collect(),
  57         Err(_) => return vec![],
  58     }
  59 }