Parsing arguments with Docopt

pull/10/head
Dennis Schwerdel 2017-03-14 16:07:52 +01:00
parent c549af635f
commit 6aa35bcdb5
5 changed files with 225 additions and 100 deletions

116
Cargo.lock generated
View File

@ -3,17 +3,26 @@ name = "zvault"
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@ -38,9 +47,15 @@ version = "0.1.2"
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@ -51,6 +66,11 @@ dependencies = [
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@ -66,6 +86,14 @@ name = "linked-hash-map"
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[[package]] [[package]]
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@ -104,8 +132,20 @@ dependencies = [
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[[package]] [[package]]
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[[package]] [[package]]
@ -127,18 +167,6 @@ dependencies = [
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@ -177,6 +205,11 @@ dependencies = [
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@ -186,16 +219,41 @@ dependencies = [
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View File

@ -13,3 +13,5 @@ mmap = "*"
quick-error = "1.1" quick-error = "1.1"
blake2-rfc = "*" blake2-rfc = "*"
murmurhash3 = "*" murmurhash3 = "*"
docopt = "0.7"
rustc-serialize = "0.3"

View File

@ -7,6 +7,8 @@ extern crate blake2_rfc as blake2;
extern crate murmurhash3; extern crate murmurhash3;
extern crate serde_yaml; extern crate serde_yaml;
#[macro_use] extern crate quick_error; #[macro_use] extern crate quick_error;
extern crate docopt;
extern crate rustc_serialize;
mod errors; mod errors;
mod util; mod util;
@ -20,59 +22,110 @@ use chunker::ChunkerType;
use repository::{Repository, Config, Mode}; use repository::{Repository, Config, Mode};
use util::{ChecksumType, Compression, HashMethod}; use util::{ChecksumType, Compression, HashMethod};
use std::path::Path;
use std::fs::File; use std::fs::File;
use std::env;
use std::io::Read; use std::io::Read;
use std::time; use std::time;
use docopt::Docopt;
static USAGE: &'static str = "
Usage:
zvault init <repo>
zvault algotest <path>
zvault check [--full] <repo>
zvault test <repo> <path>
Options:
--full Whether to verify the repository by loading all bundles
--bundle-size SIZE The target size of a full bundle in MiB [default: 25]
--chunker METHOD The chunking algorithm to use [default: fastcdc]
--chunk-size SIZE The target average chunk size in KiB [default: 8]
--compression COMPRESSION The compression to use [default: brotli/3]
";
#[derive(RustcDecodable, Debug)]
struct Args {
cmd_init: bool,
cmd_algotest: bool,
cmd_test: bool,
cmd_check: bool,
arg_repo: Option<String>,
arg_path: Option<String>,
flag_full: bool,
flag_bundle_size: usize,
flag_chunker: String,
flag_chunk_size: usize,
flag_compression: String
}
fn main() { fn main() {
let path: &Path = "test_data".as_ref(); let args: Args = Docopt::new(USAGE).and_then(|d| d.decode()).unwrap_or_else(|e| e.exit());
let mut repo = if path.exists() { println!("{:?}", args);
Repository::open(path).unwrap()
} else { if args.cmd_algotest {
Repository::create(path, Config { algotest::run(&args.arg_path.unwrap());
bundle_size: 25*1024*1024, return
}
if args.cmd_init {
let chunker = ChunkerType::from(&args.flag_chunker, args.flag_chunk_size, 0).expect("No such chunk algorithm");
let compression = if args.flag_compression == "none" {
None
} else {
Some(Compression::from_string(&args.flag_compression).expect("Failed to parse compression"))
};
Repository::create(&args.arg_repo.unwrap(), Config {
bundle_size: args.flag_bundle_size*1024*1024,
checksum: ChecksumType::Blake2_256, checksum: ChecksumType::Blake2_256,
chunker: ChunkerType::FastCdc((8*1024, 0)), chunker: chunker,
compression: Some(Compression::Brotli(1)), compression: compression,
hash: HashMethod::Blake2 hash: HashMethod::Blake2
}).unwrap() }).unwrap();
}; return
print!("Integrity check before..."); }
repo.check(true).unwrap();
println!(" done.");
let file_path = env::args().nth(1).expect("Need file as argument"); let mut repo = Repository::open(&args.arg_repo.unwrap()).unwrap();
print!("Reading file {}...", file_path);
let mut data = Vec::new();
let mut file = File::open(file_path).unwrap();
file.read_to_end(&mut data).unwrap();
println!(" done. {} bytes", data.len());
print!("Adding data to repository..."); if args.cmd_check {
let start = time::Instant::now(); repo.check(args.flag_full).unwrap();
let chunks = repo.put_data(Mode::Content, &data).unwrap(); return
repo.flush().unwrap(); }
let elapsed = start.elapsed();
let duration = elapsed.as_secs() as f64 * 1.0 + elapsed.subsec_nanos() as f64 / 1_000_000_000.0;
let write_speed = data.len() as f64 / duration;
println!(" done. {} chunks, {:.1} MB/s", chunks.len(), write_speed / 1_000_000.0);
println!("Integrity check after..."); if args.cmd_test {
repo.check(true).unwrap(); print!("Integrity check before...");
println!(" done."); repo.check(true).unwrap();
println!(" done.");
print!("Reading data from repository..."); let file_path = args.arg_path.unwrap();
let start = time::Instant::now(); print!("Reading file {}...", file_path);
let data2 = repo.get_data(&chunks).unwrap(); let mut data = Vec::new();
let elapsed = start.elapsed(); let mut file = File::open(file_path).unwrap();
let duration = elapsed.as_secs() as f64 * 1.0 + elapsed.subsec_nanos() as f64 / 1_000_000_000.0; file.read_to_end(&mut data).unwrap();
let read_speed = data.len() as f64 / duration; println!(" done. {} bytes", data.len());
assert_eq!(data.len(), data2.len());
println!(" done. {:.1} MB/s", read_speed / 1_000_000.0);
//algotest::run("test.tar"); print!("Adding data to repository...");
let start = time::Instant::now();
let chunks = repo.put_data(Mode::Content, &data).unwrap();
repo.flush().unwrap();
let elapsed = start.elapsed();
let duration = elapsed.as_secs() as f64 * 1.0 + elapsed.subsec_nanos() as f64 / 1_000_000_000.0;
let write_speed = data.len() as f64 / duration;
println!(" done. {} chunks, {:.1} MB/s", chunks.len(), write_speed / 1_000_000.0);
println!("Integrity check after...");
repo.check(true).unwrap();
println!(" done.");
print!("Reading data from repository...");
let start = time::Instant::now();
let data2 = repo.get_data(&chunks).unwrap();
let elapsed = start.elapsed();
let duration = elapsed.as_secs() as f64 * 1.0 + elapsed.subsec_nanos() as f64 / 1_000_000_000.0;
let read_speed = data.len() as f64 / duration;
assert_eq!(data.len(), data2.len());
println!(" done. {:.1} MB/s", read_speed / 1_000_000.0);
}
} }

View File

@ -67,47 +67,22 @@ impl ChunkerType {
struct CompressionYaml {
codec: String,
level: Option<u8>
}
impl Default for CompressionYaml {
fn default() -> Self {
CompressionYaml {
codec: "brotli".to_string(),
level: None
}
}
}
serde_impl!(CompressionYaml(String) {
codec: String => "codec",
level: Option<u8> => "level"
});
impl Compression { impl Compression {
fn from_yaml(yaml: CompressionYaml) -> Result<Self, &'static str> { #[inline]
match &yaml.codec as &str { fn from_yaml(yaml: String) -> Result<Self, &'static str> {
"snappy" => Ok(Compression::Snappy(())), Compression::from_string(&yaml)
"zstd" => Ok(Compression::ZStd(yaml.level.unwrap_or(5))),
"deflate" | "zlib" | "gzip" => Ok(Compression::Deflate(yaml.level.unwrap_or(5))),
"brotli" => Ok(Compression::Brotli(yaml.level.unwrap_or(5))),
"lzma2" => Ok(Compression::Lzma2(yaml.level.unwrap_or(5))),
_ => Err("Unsupported codec")
}
} }
fn to_yaml(&self) -> CompressionYaml { #[inline]
CompressionYaml { fn to_yaml(&self) -> String {
codec: self.name().to_string(), self.to_string()
level: self.level()
}
} }
} }
struct ConfigYaml { struct ConfigYaml {
compression: Option<CompressionYaml>, compression: Option<String>,
bundle_size: usize, bundle_size: usize,
chunker: ChunkerYaml, chunker: ChunkerYaml,
checksum: String, checksum: String,
@ -116,7 +91,7 @@ struct ConfigYaml {
impl Default for ConfigYaml { impl Default for ConfigYaml {
fn default() -> Self { fn default() -> Self {
ConfigYaml { ConfigYaml {
compression: Some(CompressionYaml { codec: "brotli".to_string(), level: Some(5) }), compression: Some("brotli/5".to_string()),
bundle_size: 25*1024*1024, bundle_size: 25*1024*1024,
chunker: ChunkerYaml::default(), chunker: ChunkerYaml::default(),
checksum: "blake2_256".to_string(), checksum: "blake2_256".to_string(),
@ -125,7 +100,7 @@ impl Default for ConfigYaml {
} }
} }
serde_impl!(ConfigYaml(String) { serde_impl!(ConfigYaml(String) {
compression: Option<CompressionYaml> => "compression", compression: Option<String> => "compression",
bundle_size: usize => "bundle_size", bundle_size: usize => "bundle_size",
chunker: ChunkerYaml => "chunker", chunker: ChunkerYaml => "chunker",
checksum: String => "checksum", checksum: String => "checksum",

View File

@ -1,6 +1,7 @@
use std::ptr; use std::ptr;
use std::ffi::{CStr, CString}; use std::ffi::{CStr, CString};
use std::io::Write; use std::io::Write;
use std::str::FromStr;
use squash::*; use squash::*;
@ -23,6 +24,34 @@ serde_impl!(Compression(u64) {
impl Compression { impl Compression {
#[inline]
pub fn to_string(&self) -> String {
if let Some(level) = self.level() {
format!("{}/{}", self.name(), level)
} else {
self.name().to_string()
}
}
#[inline]
pub fn from_string(name: &str) -> Result<Self, &'static str> {
let (name, level) = if let Some(pos) = name.find("/") {
let level = try!(u8::from_str(&name[pos+1..]).map_err(|_| "Level must be a number"));
let name = &name[..pos];
(name, level)
} else {
(name, 5)
};
match name {
"snappy" => Ok(Compression::Snappy(())),
"zstd" => Ok(Compression::ZStd(level)),
"deflate" | "zlib" | "gzip" => Ok(Compression::Deflate(level)),
"brotli" => Ok(Compression::Brotli(level)),
"lzma2" => Ok(Compression::Lzma2(level)),
_ => Err("Unsupported codec")
}
}
#[inline] #[inline]
pub fn name(&self) -> &'static str { pub fn name(&self) -> &'static str {
match *self { match *self {