Initial working disaster
This commit is contained in:
commit
9b7032d3d2
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.direnv
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target/
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# Added by cargo
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/target
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@ -0,0 +1,259 @@
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"type": "github"
|
||||
}
|
||||
},
|
||||
"utils": {
|
||||
"locked": {
|
||||
"lastModified": 1659877975,
|
||||
"narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"type": "github"
|
||||
}
|
||||
}
|
||||
},
|
||||
"root": "root",
|
||||
"version": 7
|
||||
}
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
{
|
||||
description = "Check that you've copied all your photos from removable media.";
|
||||
|
||||
inputs = {
|
||||
utils.url = "github:numtide/flake-utils";
|
||||
devshell.url = "github:numtide/devshell";
|
||||
naersk.url = "github:nix-community/naersk";
|
||||
rust-overlay.url = "github:oxalica/rust-overlay";
|
||||
};
|
||||
|
||||
outputs = {
|
||||
self,
|
||||
nixpkgs,
|
||||
utils,
|
||||
naersk,
|
||||
devshell,
|
||||
rust-overlay,
|
||||
}:
|
||||
utils.lib.eachDefaultSystem (system: let
|
||||
pkgs = import nixpkgs {
|
||||
inherit system;
|
||||
overlays = [(import rust-overlay)];
|
||||
};
|
||||
rust = pkgs.rust-bin.stable.latest.default;
|
||||
# Override naersk to use our chosen rust version from rust-overlay
|
||||
naersk-lib = naersk.lib.${system}.override {
|
||||
cargo = rust;
|
||||
rustc = rust;
|
||||
};
|
||||
in rec {
|
||||
packages.default = naersk-lib.buildPackage {
|
||||
pname = "cool-rust-disaster";
|
||||
root = ./.;
|
||||
};
|
||||
|
||||
apps.default = utils.lib.mkApp {drv = packages.default;};
|
||||
|
||||
# Provide a dev env with rust and rls
|
||||
devShells.default = let
|
||||
pkgs = import nixpkgs {
|
||||
inherit system;
|
||||
overlays = [devshell.overlay];
|
||||
};
|
||||
in
|
||||
pkgs.devshell.mkShell {
|
||||
packages = with pkgs; [(rust.override {extensions = ["rls"];})];
|
||||
};
|
||||
formatter = pkgs.alejandra;
|
||||
});
|
||||
}
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
use std::{collections::{HashMap, HashSet}, error::Error, os::unix::prelude::MetadataExt, path::PathBuf};
|
||||
|
||||
use clap::Parser;
|
||||
use walkdir::WalkDir;
|
||||
|
||||
type StdError<T> = Result<T, Box<dyn Error>>;
|
||||
|
||||
#[derive(Parser)]
|
||||
#[clap(author, version, about)]
|
||||
struct Cli {
|
||||
/// Source directory
|
||||
#[clap(value_parser)]
|
||||
source: PathBuf,
|
||||
/// Destination directory
|
||||
#[clap(value_parser)]
|
||||
destination: PathBuf,
|
||||
// /// Be more verbose
|
||||
// #[clap(short, long, value_parser)]
|
||||
// verbose: bool,
|
||||
}
|
||||
|
||||
// Map from (filesize, filename) to full file path relative to root
|
||||
#[derive(Default)]
|
||||
struct FileMap(HashMap<(u64, String), String>);
|
||||
|
||||
impl FileMap {
|
||||
fn new(path: &PathBuf) -> StdError<Self> {
|
||||
let mut fm = Self::default();
|
||||
for entry in WalkDir::new(path).into_iter().filter_entry(|e| {
|
||||
!e.file_name()
|
||||
.to_str()
|
||||
.map(|s| s.starts_with('.'))
|
||||
.unwrap_or(false)
|
||||
}) {
|
||||
let entry = entry?;
|
||||
let meta = &entry.metadata()?;
|
||||
if meta.is_dir() {
|
||||
continue;
|
||||
}
|
||||
let fname = entry.file_name().to_str().unwrap().to_owned();
|
||||
let fpath = entry.path().to_str().unwrap().to_owned();
|
||||
if let Some(old) = fm.0.insert((meta.size(), fname.clone()), fpath.clone()) {
|
||||
return Err(format!("Duplicate filesize/filename detected: {}, clashes with {}!", old, fpath).into());
|
||||
}
|
||||
}
|
||||
Ok(fm)
|
||||
}
|
||||
}
|
||||
|
||||
fn main() -> StdError<()> {
|
||||
let cli = Cli::parse();
|
||||
let source = FileMap::new(&cli.source)?;
|
||||
let source_set: HashSet<_> = source.0.keys().collect();
|
||||
eprintln!("{} files in source", source.0.len());
|
||||
let dest = FileMap::new(&cli.destination)?;
|
||||
let dest_set = dest.0.keys().collect();
|
||||
eprintln!("{} files in destination", dest.0.len());
|
||||
let mut diffs: Vec<_> = source_set.difference(&dest_set).map(|d| source.0[d].clone()).collect();
|
||||
diffs.sort();
|
||||
if !diffs.is_empty() {
|
||||
eprintln!("Files present in source but not dest:");
|
||||
for diff in diffs {
|
||||
eprintln!("{}", diff);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
Loading…
Reference in New Issue