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Make --ignore a b c work with directories and files

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This commit is contained in:
Mark 2023-11-04 15:44:22 +01:00
parent e8e5b363ff
commit 7595d2482c
2 changed files with 16 additions and 26 deletions
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2
src/args.rs
View File

@ -17,7 +17,7 @@ pub struct Args {
/// directories to ignore.
/// can be paths relative to <source> (like backups/) or paths starting with <source> (like my_source/backups/).
/// if <index> starts with <source>, it is automatically ignored and doesn't need to be specified.
#[arg(long)]
#[arg(long, num_args(0..))]
pub ignore: Vec<PathBuf>,
/// don't ask for confirmation, just apply the changes.
#[arg(long)]

40
src/update_index.rs
View File

@ -5,19 +5,19 @@ use crate::{indexchanges::IndexChange, indexfile::IndexFile};
pub fn perform_index_diff<'a>(
source: &Path,
index: &'a Path,
mut ignore_subdirs: Vec<&'a Path>,
mut ignore_paths: Vec<&'a Path>,
) -> io::Result<Vec<IndexChange>> {
let mut changes = Vec::new();
if let Ok(inner_index) = index.strip_prefix(source) {
eprintln!("[info] source contains index, but index will not be part of the backup.");
ignore_subdirs.push(inner_index);
ignore_paths.push(inner_index);
}
rec(
source.as_ref(),
Path::new(""),
index,
&mut changes,
&ignore_subdirs,
&ignore_paths,
)?;
Ok(changes)
}
@ -30,15 +30,8 @@ fn rec(
index_files: &Path,
// list of changes to be made
changes: &mut Vec<IndexChange>,
// if the index is part of `source`, where exactly is it?
ignore_subdirs: &Vec<&Path>,
ignore_paths: &Vec<&Path>,
) -> Result<(), io::Error> {
for ii in ignore_subdirs {
if rel_path.starts_with(ii) {
return Ok(());
}
}
// used to find removals
let index_rel_path = index_files.join(rel_path);
let mut index_entries = match fs::read_dir(&index_rel_path) {
@ -57,33 +50,30 @@ fn rec(
// find changes/adds
for entry in source_files {
let entry = entry?;
let rel_path = rel_path.join(entry.file_name());
// ignore entries
if ignore_paths.iter().any(|ii| &rel_path == ii) {
continue;
}
let metadata = entry.metadata()?;
let in_index_and_is_dir = index_entries.remove(&entry.file_name());
if metadata.is_dir() {
if let Some(false) = in_index_and_is_dir {
// is dir, but was file -> remove file
changes.push(IndexChange::RemoveFile(rel_path.join(entry.file_name())));
changes.push(IndexChange::RemoveFile(rel_path.clone()));
}
rec(
source,
&rel_path.join(entry.file_name()),
index_files,
changes,
ignore_subdirs,
)?;
rec(source, &rel_path, index_files, changes, ignore_paths)?;
} else {
if let Some(true) = in_index_and_is_dir {
// is file, but was dir -> remove dir
changes.push(IndexChange::RemoveDir(rel_path.join(entry.file_name())));
changes.push(IndexChange::RemoveDir(rel_path.clone()));
}
let newif = IndexFile::new_from_metadata(&metadata);
let oldif = IndexFile::from_path(&index_files.join(rel_path).join(entry.file_name()));
let oldif = IndexFile::from_path(&index_files.join(&rel_path));
match oldif {
Ok(Ok(oldif)) if oldif == newif => {}
_ => changes.push(IndexChange::AddFile(
rel_path.join(entry.file_name()),
newif,
)),
_ => changes.push(IndexChange::AddFile(rel_path, newif)),
}
}
}