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src/pxar/encoder.rs: refactoring of match_exclude_pattern()

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match_exclude_pattern() does not need a '&mut self' reference to the encoder,
move it therefore out of the impl.
Further, this patch contains some naming and formatting cosmetics.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
This commit is contained in:
Christian Ebner 2019-07-16 13:19:49 +02:00 committed by Dietmar Maurer
parent 3ff4ef28e6
commit 9f8fcdd050
1 changed files with 34 additions and 32 deletions
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66
src/pxar/encoder.rs
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@ -652,12 +652,12 @@ impl <'a, W: Write> Encoder<'a, W> {
Err(err) => bail!("fstat {:?} failed - {}", self.full_path(), err),
};
match self.match_exclude_pattern(&filename, &stat, &local_match_pattern) {
match match_exclude_pattern(&filename, &stat, &local_match_pattern) {
(MatchType::Exclude, _) => {
let filename_osstr = std::ffi::OsStr::from_bytes(filename.to_bytes());
eprintln!("matched by .pxarexclude entry - skipping: {:?}", self.full_path().join(filename_osstr));
},
(_, pattern_list) => name_list.push((filename, stat, pattern_list)),
(_, child_pattern) => name_list.push((filename, stat, child_pattern)),
}
if name_list.len() > MAX_DIRECTORY_ENTRIES {
@ -825,36 +825,6 @@ impl <'a, W: Write> Encoder<'a, W> {
Ok(())
}
// If there is a match, an updated PxarExcludePattern list to pass to the matched child is returned.
fn match_exclude_pattern(&mut self, filename: &CStr, stat: &FileStat, match_pattern: &Vec<PxarExcludePattern>) -> (MatchType, Vec<PxarExcludePattern>) {
let mut child_pattern = Vec::new();
let mut match_type = MatchType::None;
let is_dir = is_directory(&stat);
for pattern in match_pattern {
match pattern.matches_filename(filename, is_dir) {
MatchType::None => {},
MatchType::Exclude => match_type = MatchType::Exclude,
MatchType::Include => match_type = MatchType::Include,
MatchType::PartialExclude => {
if match_type != MatchType::Include && match_type != MatchType::Exclude {
match_type = MatchType::PartialExclude;
}
child_pattern.push(pattern.get_rest_pattern());
},
MatchType::PartialInclude => {
if match_type != MatchType::Include && match_type != MatchType::Exclude {
// always include partial matches, as we need to match children to decide
match_type = MatchType::PartialInclude;
}
child_pattern.push(pattern.get_rest_pattern());
},
}
}
(match_type, child_pattern)
}
fn encode_file(&mut self, filefd: RawFd, stat: &FileStat, magic: i64) -> Result<(), Error> {
//println!("encode_file: {:?}", self.full_path());
@ -1043,6 +1013,38 @@ impl <'a, W: Write> Encoder<'a, W> {
}
}
// If there is a match, an updated PxarExcludePattern list to pass to the matched child is returned.
fn match_exclude_pattern(
filename: &CStr,
stat: &FileStat,
match_pattern: &Vec<PxarExcludePattern>
) -> (MatchType, Vec<PxarExcludePattern>) {
let mut child_pattern = Vec::new();
let mut match_state = MatchType::None;
for pattern in match_pattern {
match pattern.matches_filename(filename, is_directory(&stat)) {
MatchType::None => {},
MatchType::Exclude => match_state = MatchType::Exclude,
MatchType::Include => match_state = MatchType::Include,
MatchType::PartialExclude => {
if match_state != MatchType::Exclude && match_state != MatchType::Include {
match_state = MatchType::PartialExclude;
}
child_pattern.push(pattern.get_rest_pattern());
},
MatchType::PartialInclude => {
if match_state != MatchType::Exclude && match_state != MatchType::Include {
match_state = MatchType::PartialInclude;
}
child_pattern.push(pattern.get_rest_pattern());
},
}
}
(match_state, child_pattern)
}
fn errno_is_unsupported(errno: Errno) -> bool {
match errno {