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Reimplement StorageBackend::new(), create directory if not existing, store storepath in extra variable

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Matthias Beyer 2015-12-02 11:49:53 +01:00
parent 1e5c50bc0b
commit 0e4a56fe68
1 changed files with 21 additions and 4 deletions
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25
src/storage/backend.rs
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@ -6,6 +6,7 @@ use std::path::Path;
use std::path::PathBuf; use std::path::PathBuf;
use std::vec::Vec; use std::vec::Vec;
use std::fs::File as FSFile; use std::fs::File as FSFile;
use std::fs::create_dir_all;
use std::fs::remove_file; use std::fs::remove_file;
use std::io::Read; use std::io::Read;
use std::io::Write; use std::io::Write;
@ -25,14 +26,30 @@ pub type BackendOperationResult<T = ()> = Result<T, StorageBackendError>;
pub struct StorageBackend { pub struct StorageBackend {
basepath: String, basepath: String,
storepath: String,
} }
impl StorageBackend { impl StorageBackend {
pub fn new(basepath: String) -> StorageBackend { pub fn new(rt: &Runtime) -> BackendOperationResult<StorageBackend> {
StorageBackend { let storepath = rt.get_rtp() + "/store/";
basepath: basepath, debug!("Trying to create {}", storepath);
} create_dir_all(&storepath).and_then(|_| {
debug!("Creating succeeded, constructing backend instance");
Ok(StorageBackend {
basepath: rt.get_rtp(),
storepath: storepath.clone(),
})
}).or_else(|e| {
debug!("Creating failed, constructing error instance");
let mut serr = StorageBackendError::build(
"create_dir_all()",
"Could not create store directories",
Some(storepath)
);
serr.caused_by = Some(Box::new(e));
Err(serr)
})
} }
fn build<M: Module>(rt: &Runtime, m: &M) -> StorageBackend { fn build<M: Module>(rt: &Runtime, m: &M) -> StorageBackend {