diff options
author | Matthias Beyer <mail@beyermatthias.de> | 2018-10-30 18:40:51 +0100 |
---|---|---|
committer | Matthias Beyer <mail@beyermatthias.de> | 2018-10-30 18:46:29 +0100 |
commit | f4ff2ba250079ca66d58587c7698f7686ac6be74 (patch) | |
tree | 25c2174e0a680dd67bb54e0c32601731d2e8a82f /lib/domain/libimagmail/src/mail.rs | |
parent | d3c082618815df6eb2d3189bb89e641d4ebbcae8 (diff) |
libimagmail: Move from error-chain to failure
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Diffstat (limited to 'lib/domain/libimagmail/src/mail.rs')
-rw-r--r-- | lib/domain/libimagmail/src/mail.rs | 43 |
1 files changed, 25 insertions, 18 deletions
diff --git a/lib/domain/libimagmail/src/mail.rs b/lib/domain/libimagmail/src/mail.rs index bf16c4a6..a1b33a14 100644 --- a/lib/domain/libimagmail/src/mail.rs +++ b/lib/domain/libimagmail/src/mail.rs @@ -21,7 +21,6 @@ use std::path::Path; use std::fs::File; use std::io::Read; use std::fs::OpenOptions; -use std::result::Result as RResult; use libimagstore::store::Store; use libimagstore::storeid::StoreId; @@ -29,24 +28,25 @@ use libimagstore::store::FileLockEntry; use libimagentryref::reference::Ref; use libimagentryref::refstore::RefStore; use libimagentryref::refstore::UniqueRefPathGenerator; +use libimagerror::errors::ErrorMsg as EM; use email::MimeMessage; use email::results::ParsingResult as EmailParsingResult; -use error::Result; -use error::{ResultExt, MailError as ME, MailErrorKind as MEK}; +use failure::Fallible as Result; +use failure::ResultExt; +use failure::Error; +use failure::err_msg; struct UniqueMailRefGenerator; impl UniqueRefPathGenerator for UniqueMailRefGenerator { - type Error = ME; - /// The collection the `StoreId` should be created for fn collection() -> &'static str { "mail" } /// A function which should generate a unique string for a Path - fn unique_hash<A: AsRef<Path>>(path: A) -> RResult<String, Self::Error> { + fn unique_hash<A: AsRef<Path>>(path: A) -> Result<String> { use filters::filter::Filter; use email::Header; @@ -59,7 +59,8 @@ impl UniqueRefPathGenerator for UniqueMailRefGenerator { .read_to_string(&mut s)?; MimeMessage::parse(&s) - .chain_err(|| MEK::RefCreationError) + .context(err_msg("Error creating ref")) + .map_err(Error::from) .and_then(|mail| { let has_key = |hdr: &Header, exp: &str| hdr.name == exp; @@ -73,7 +74,7 @@ impl UniqueRefPathGenerator for UniqueMailRefGenerator { for hdr in mail.headers.iter().filter(|item| filter.filter(item)) { let s = hdr .get_value() - .chain_err(|| MEK::RefCreationError)?; + .context(err_msg("Ref creation error"))?; v.push(s); } @@ -83,7 +84,7 @@ impl UniqueRefPathGenerator for UniqueMailRefGenerator { } /// Postprocess the generated `StoreId` object - fn postprocess_storeid(sid: StoreId) -> RResult<StoreId, Self::Error> { + fn postprocess_storeid(sid: StoreId) -> Result<StoreId> { Ok(sid) } } @@ -113,13 +114,15 @@ impl<'a> Mail<'a> { .and_then(|reference| { debug!("Build reference file: {:?}", reference); reference.get_path() - .chain_err(|| MEK::RefHandlingError) - .and_then(|path| File::open(path).chain_err(|| MEK::IOError)) + .context(err_msg("Ref handling error")) + .map_err(Error::from) + .and_then(|path| File::open(path).context(EM::IO).map_err(Error::from)) .and_then(|mut file| { let mut s = String::new(); file.read_to_string(&mut s) .map(|_| s) - .chain_err(|| MEK::IOError) + .context(EM::IO) + .map_err(Error::from) }) .map(Buffer::from) .map(|buffer| Mail(reference, buffer)) @@ -130,8 +133,9 @@ impl<'a> Mail<'a> { pub fn open<S: AsRef<str>>(store: &Store, hash: S) -> Result<Option<Mail>> { debug!("Opening Mail by Hash"); store.get_ref::<UniqueMailRefGenerator, S>(hash) - .chain_err(|| MEK::FetchByHashError) - .chain_err(|| MEK::FetchError) + .context(err_msg("Fetch by hash error")) + .context(err_msg("Fetch error")) + .map_err(Error::from) .and_then(|o| match o { Some(r) => Mail::from_fle(r).map(Some), None => Ok(None), @@ -141,13 +145,15 @@ impl<'a> Mail<'a> { /// Implement me as TryFrom as soon as it is stable pub fn from_fle(fle: FileLockEntry<'a>) -> Result<Mail<'a>> { fle.get_path() - .chain_err(|| MEK::RefHandlingError) - .and_then(|path| File::open(path).chain_err(|| MEK::IOError)) + .context(err_msg("Ref handling error")) + .map_err(Error::from) + .and_then(|path| File::open(path).context(EM::IO).map_err(Error::from)) .and_then(|mut file| { let mut s = String::new(); file.read_to_string(&mut s) .map(|_| s) - .chain_err(|| MEK::IOError) + .context(EM::IO) + .map_err(Error::from) }) .map(Buffer::from) .map(|buffer| Mail(fle, buffer)) @@ -157,7 +163,8 @@ impl<'a> Mail<'a> { debug!("Getting field in mail: {:?}", field); self.1 .parsed() - .chain_err(|| MEK::MailParsingError) + .context(err_msg("Mail parsing error")) + .map_err(Error::from) .map(|parsed| { parsed.headers .iter() |