Merge branch 'errors-from-backend'

This commit is contained in:
Matthias Beyer 2015-12-04 14:17:45 +01:00
commit 406348bc34
2 changed files with 79 additions and 56 deletions

View file

@ -39,7 +39,7 @@ pub fn list_command(module: &Module, env: CommandEnv) -> CommandResult {
let files = get_filtered_files_from_backend(module, &env);
debug!("Printing files now");
printer.print_files(files);
files.map(|f| printer.print_files(f));
Ok(())
}
@ -66,7 +66,7 @@ pub fn remove_command(module: &Module, env: CommandEnv) -> CommandResult {
} else {
debug!("Remove more than one file");
let files = get_filtered_files_from_backend(module, &env);
get_filtered_files_from_backend(module, &env).and_then(|files| {
let nfiles = files.len();
info!("Removing {} Files", nfiles);
@ -94,6 +94,7 @@ pub fn remove_command(module: &Module, env: CommandEnv) -> CommandResult {
} else {
Ok(())
}
})
}
}
@ -104,12 +105,14 @@ pub fn remove_command(module: &Module, env: CommandEnv) -> CommandResult {
*/
fn get_filtered_files_from_backend<'a>(module: &'a Module,
env: &CommandEnv) -> IntoIter<File<'a>>
env: &CommandEnv)
-> Result<IntoIter<File<'a>>, ModuleError>
{
let parser = Parser::new(JsonHeaderParser::new(None));
let tags = get_tags(env.rt, env.matches);
debug!("Tags: {:?}", tags);
env.bk.iter_files(module, &parser).and_then(|files| {
env.bk.iter_files(module, &parser)
.map(|files| {
let f = files.filter(|file| {
if tags.len() != 0 {
debug!("Checking tags of: {:?}", file.id());
@ -124,8 +127,12 @@ fn get_filtered_files_from_backend<'a>(module: &'a Module,
.and_then(|r| Some(file.matches_with(&r)))
.unwrap_or(true)
}).collect::<Vec<File>>();
Some(f)
}).unwrap_or(Vec::<File>::new()).into_iter()
f.into_iter()
}).map_err(|e| {
let mut merr = ModuleError::new("Could not filter files");
merr.caused_by = Some(Box::new(e));
merr
})
}
fn get_tags<'a>(rt: &Runtime, sub: &ArgMatches<'a, 'a>) -> Vec<String> {

View file

@ -72,26 +72,42 @@ impl StorageBackend {
}
}
pub fn iter_ids(&self, m: &Module) -> Option<IntoIter<FileID>>
pub fn iter_ids(&self, m: &Module) -> Result<IntoIter<FileID>, StorageBackendError>
{
glob(&self.prefix_of_files_for_module(m)[..]).and_then(|globlist| {
glob(&self.prefix_of_files_for_module(m)[..])
.and_then(|globlist| {
let v = globlist.filter_map(Result::ok)
.map(|pbuf| FileID::from(&pbuf))
.collect::<Vec<FileID>>()
.into_iter();
Ok(v)
}).ok()
})
.map_err(|e| {
let serr = StorageBackendError::build(
"iter_ids()",
"Cannot iter on file ids",
None);
serr
})
}
pub fn iter_files<'a, HP>(&self, m: &'a Module, p: &Parser<HP>)
-> Option<IntoIter<File<'a>>>
-> Result<IntoIter<File<'a>>, StorageBackendError>
where HP: FileHeaderParser
{
self.iter_ids(m).and_then(|ids| {
Some(ids.filter_map(|id| self.get_file_by_id(m, &id, p))
self.iter_ids(m)
.and_then(|ids| {
Ok(ids.filter_map(|id| self.get_file_by_id(m, &id, p))
.collect::<Vec<File>>()
.into_iter())
})
.map_err(|e| {
let serr = StorageBackendError::build(
"iter_files()",
"Cannot iter on files",
None);
serr
})
}
/*