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Rewrite BMModule::get_filtered_files_from_backend() with the backend speaking Result<> now instead of Option<>

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Matthias Beyer 2015-12-04 14:17:32 +01:00
parent 40ae26d0f2
commit 04df3fdf3c
1 changed files with 48 additions and 41 deletions
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17
src/module/bm/commands.rs
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@ -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> {