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use crate::backup_progress::BackupProgress;
use crate::backup_reason::Reason;
use crate::chunkid::ChunkId;
use crate::client::{BackupClient, ClientConfig};
use crate::fsentry::FilesystemEntry;
use crate::generation::LocalGeneration;
use crate::policy::BackupPolicy;
use log::{info, warn};
pub struct BackupRun {
client: BackupClient,
policy: BackupPolicy,
buffer_size: usize,
progress: BackupProgress,
}
impl BackupRun {
pub fn new(config: &ClientConfig, buffer_size: usize) -> anyhow::Result<Self> {
let client = BackupClient::new(&config.server_url)?;
let policy = BackupPolicy::new();
let progress = BackupProgress::new();
Ok(Self {
client,
policy,
buffer_size,
progress,
})
}
pub fn client(&self) -> &BackupClient {
&self.client
}
pub fn progress(&self) -> &BackupProgress {
&self.progress
}
pub fn backup_file_initially(
&self,
entry: anyhow::Result<FilesystemEntry>,
) -> anyhow::Result<(FilesystemEntry, Vec<ChunkId>, Reason)> {
match entry {
Err(err) => Err(err.into()),
Ok(entry) => {
let path = &entry.pathbuf();
info!("backup: {}", path.display());
self.progress.found_live_file(path);
let ids = self
.client
.upload_filesystem_entry(&entry, self.buffer_size)?;
Ok((entry.clone(), ids, Reason::IsNew))
}
}
}
pub fn backup_file_incrementally(
&self,
entry: anyhow::Result<FilesystemEntry>,
old: &LocalGeneration,
) -> anyhow::Result<(FilesystemEntry, Vec<ChunkId>, Reason)> {
match entry {
Err(err) => {
warn!("backup: {}", err);
self.progress.found_problem();
Err(err)
}
Ok(entry) => {
let path = &entry.pathbuf();
info!("backup: {}", path.display());
self.progress.found_live_file(path);
let reason = self.policy.needs_backup(&old, &entry);
match reason {
Reason::IsNew | Reason::Changed | Reason::Error => {
let ids = self
.client
.upload_filesystem_entry(&entry, self.buffer_size)?;
Ok((entry.clone(), ids, reason))
}
Reason::Unchanged | Reason::Skipped => {
let fileno = old.get_fileno(&entry.pathbuf())?;
let ids = if let Some(fileno) = fileno {
old.chunkids(fileno)?
} else {
vec![]
};
Ok((entry.clone(), ids, reason))
}
}
}
}
}
}
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