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Sort links alphabetically before writing

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This commit is contained in:
Matthias Beyer 2016-04-16 16:09:00 +02:00
parent b63e2cb7b2
commit 915e711c3e
1 changed files with 26 additions and 3 deletions
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29
libimaglink/src/internal.rs
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@ -1,3 +1,5 @@
use std::cmp::Ordering;
use libimagstore::storeid::StoreId;
use libimagstore::store::Entry;
use libimagstore::store::EntryHeader;
@ -52,7 +54,16 @@ impl InternalLinker for Entry {
new_links.push(String::from(link));
}
let new_links = new_links.into_iter().unique().map(|s| Value::String(s)).collect();
let new_links = new_links
.into_iter()
.unique()
.map(|s| Value::String(s))
.sorted_by(|a, b| {
match (a, b) {
(&Value::String(ref a), &Value::String(ref b)) => Ord::cmp(a, b),
_ => unreachable!()
}
});
process_rw_result(self.get_header_mut().set("imag.links", Value::Array(new_links)))
}
@ -95,7 +106,13 @@ fn rewrite_links(header: &mut EntryHeader, links: Vec<StoreId>) -> Result<()> {
.map(|s| s.to_str().map(|s| String::from(s)))
.unique()
.map(|elem| elem.map(|s| Value::String(s)))
.collect();
.sorted_by(|a, b| {
match (a, b) {
(&Some(Value::String(ref a)), &Some(Value::String(ref b))) => Ord::cmp(a, b),
(&None, _) | (_, &None) => Ordering::Equal,
_ => unreachable!()
}
});
if links.iter().any(|o| o.is_none()) {
// if any type convert failed we fail as well
@ -124,7 +141,13 @@ fn add_foreign_link(target: &mut Entry, from: StoreId) -> Result<()> {
})
.unique()
.map(|elem| elem.map(|s| Value::String(s)))
.collect();
.sorted_by(|a, b| {
match (a, b) {
(&Some(Value::String(ref a)), &Some(Value::String(ref b))) => Ord::cmp(a, b),
(&None, _) | (_, &None) => Ordering::Equal,
_ => unreachable!()
}
});
if links.iter().any(|o| o.is_none()) {
Err(LinkError::new(LinkErrorKind::InternalConversionError, None))
} else {