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Add debug!() calls for external linking source

This commit is contained in:
Matthias Beyer 2016-04-12 22:27:38 +02:00
parent 766fb2a9e2
commit fdb03666b8
1 changed files with 35 additions and 4 deletions
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39
libimaglink/src/external.rs
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@ -112,6 +112,7 @@ pub trait ExternalLinker : InternalLinker {
/// Check whether the StoreId starts with `/link/external/`
fn is_link_store_id(id: &StoreId) -> bool {
debug!("Checking whether this is a /link/external/*: '{:?}'", id);
id.starts_with("/link/external/")
}
@ -132,12 +133,17 @@ impl ExternalLinker for Entry {
// put them into the return vector.
self.get_internal_links()
.map(|vect| {
debug!("Getting external links");
vect.into_iter()
.filter(is_link_store_id)
.map(|id| {
match store.retrieve(id) {
debug!("Retrieving entry for id: '{:?}'", id);
match store.retrieve(id.clone()) {
Ok(f) => get_external_link_from_file(&f),
Err(e) => Err(LE::new(LEK::StoreReadError, Some(Box::new(e)))),
Err(e) => {
debug!("Retrieving entry for id: '{:?}' failed", id);
Err(LE::new(LEK::StoreReadError, Some(Box::new(e))))
}
}
})
.filter_map(|x| x.ok()) // TODO: Do not ignore error here
@ -157,30 +163,47 @@ impl ExternalLinker for Entry {
let hash = &d[..];
let v = Vec::from(hash);
let s = String::from_utf8(v).unwrap(); // TODO: Uncaught unwrap()
ModuleEntryPath::new(format!("external/{}", s)).into_storeid()
debug!("Generating store id for digest: '{:?}' == {}", d, s);
let id = ModuleEntryPath::new(format!("external/{}", s)).into_storeid();
debug!("Generted store id: '{:?}'", id);
id
}
debug!("Iterating {} links = {:?}", links.len(), links);
for link in links { // for all links
let hash = hash::hash(link.serialize().as_bytes());
let file_id = hash_to_storeid(hash);
debug!("Link = '{:?}'", link);
debug!("Hash = '{:?}'", hash);
debug!("StoreId = '{:?}'", file_id);
let mut file = {
if let Ok(mut file) = store.retrieve(file_id.clone()) { // retrieve the file from the store
debug!("Woha, there is already a file for this link: '{:?}'", link);
file
} else { // or
debug!("Generating file for link = '{:?}' on id = {:?}", link, file_id);
let res = store.create(file_id) // create it
.and_then(|mut file| {
{
debug!("Generating header content!");
let mut hdr = file.deref_mut().get_header_mut();
// Write the URI into the header
match hdr.set("imag.content", Value::Table(BTreeMap::new())) {
Ok(_) => {
let v = Value::String(link.serialize());
debug!("setting URL = '{:?}", v);
hdr.set("imag.content.uri", v);
Ok(())
},
Err(e) => Err(e),
Err(e) => {
debug!("Failed to generate a table in header at 'imag.content'");
Err(e)
},
}
}.map(|_| file)
})
@ -188,26 +211,33 @@ impl ExternalLinker for Entry {
// And if that fails we can error
if let Err(e) = res {
debug!("Failed to create or retrieve an file for this link '{:?}'", link);
return Err(e);
}
debug!("Success creating or retrieving an file for this link '{:?}'", link);
res.unwrap()
}
};
// then add an internal link to the new file or return an error if this fails
if let Err(e) = self.add_internal_link(file.deref_mut()) {
debug!("Error adding internal link");
return Err(LE::new(LEK::StoreWriteError, Some(Box::new(e))));
}
}
debug!("Ready iterating");
Ok(())
}
/// Add an external link to the implementor object
fn add_external_link(&mut self, store: &Store, link: Url) -> Result<()> {
// get external links, add this one, save them
debug!("Getting links");
self.get_external_links(store)
.and_then(|mut links| {
debug!("Adding link = '{:?}' to links = {:?}", link, links);
links.push(link);
debug!("Setting {} links = {:?}", links.len(), links);
self.set_external_links(store, links)
})
}
@ -217,6 +247,7 @@ impl ExternalLinker for Entry {
// get external links, remove this one, save them
self.get_external_links(store)
.and_then(|mut links| {
debug!("Removing link = '{:?}' from links = {:?}", link, links);
let links = links.into_iter()
.filter(|l| l.serialize() != link.serialize())
.collect();