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working_copy: extract function for getting mtime

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We had a few lines of duplicated code for this, so I moved it into a
function and added better error handling.
This commit is contained in:
Martin von Zweigbergk 2022-05-23 23:23:52 -07:00 committed by Martin von Zweigbergk
parent 23f9e6479f
commit 9feb786a51
1 changed files with 15 additions and 7 deletions
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22
lib/src/working_copy.rs
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@ -14,7 +14,6 @@
use std::cell::{RefCell, RefMut};
use std::collections::{BTreeMap, HashSet};
use std::convert::TryInto;
use std::ffi::OsString;
use std::fs;
use std::fs::{File, Metadata, OpenOptions};
@ -154,10 +153,21 @@ fn create_parent_dirs(disk_path: &Path) {
.unwrap_or_else(|_| panic!("failed to create parent directories for {:?}", &disk_path));
}
fn mtime_from_metadata(metadata: &Metadata) -> MillisSinceEpoch {
let time = metadata
.modified()
.expect("File mtime not supported on this platform?");
let since_epoch = time
.duration_since(UNIX_EPOCH)
.expect("mtime before unix epoch");
MillisSinceEpoch(
u64::try_from(since_epoch.as_millis()).expect("mtime billions of years into the future"),
)
}
fn file_state(metadata: &Metadata) -> FileState {
let time = metadata.modified().unwrap();
let since_epoch = time.duration_since(UNIX_EPOCH).unwrap();
let mtime = MillisSinceEpoch(since_epoch.as_millis().try_into().unwrap());
let mtime = mtime_from_metadata(metadata);
let size = metadata.len();
let metadata_file_type = metadata.file_type();
let file_type = if metadata_file_type.is_dir() {
@ -279,9 +289,7 @@ impl TreeState {
fn update_own_mtime(&mut self) {
if let Ok(metadata) = self.state_path.join("tree_state").symlink_metadata() {
let time = metadata.modified().unwrap();
let since_epoch = time.duration_since(UNIX_EPOCH).unwrap();
self.own_mtime = MillisSinceEpoch(since_epoch.as_millis().try_into().unwrap());
self.own_mtime = mtime_from_metadata(&metadata);
} else {
self.own_mtime = MillisSinceEpoch(0);
}