develop #8

Merged
David merged 26 commits from develop into master 2024-05-18 20:53:25 +02:00
13 changed files with 1226 additions and 387 deletions
Showing only changes of commit d9aeb582a2 - Show all commits

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.gitignore vendored
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# will have compiled files and executables # will have compiled files and executables
/target/ /target/
# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
Cargo.lock
# These are backup files generated by rustfmt # These are backup files generated by rustfmt
**/*.rs.bk **/*.rs.bk

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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
dependencies = [
"winapi",
]
[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]]
name = "windows-sys"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
[[package]]
name = "windows_aarch64_msvc"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
[[package]]
name = "windows_i686_gnu"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
[[package]]
name = "windows_i686_msvc"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
[[package]]
name = "windows_x86_64_gnu"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
[[package]]
name = "windows_x86_64_msvc"
version = "0.42.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
[[package]]
name = "xattr"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "244c3741f4240ef46274860397c7c74e50eb23624996930e484c16679633a54c"
dependencies = [
"libc",
]

View File

@ -1,2 +1,2 @@
[workspace] [workspace]
members = ["warp-runner", "warp-packer"] members = ["warp-args", "warp-runner", "warp-packer"]

View File

@ -2,8 +2,8 @@ all:
$(MAKE) build $(MAKE) build
build: build:
cargo build -p warp-runner --release --target x86_64-unknown-linux-gnu cargo build -p warp-runner --release --target x86_64-unknown-linux-musl
strip target/x86_64-unknown-linux-gnu/release/warp-runner strip target/x86_64-unknown-linux-musl/release/warp-runner
CC=x86_64-apple-darwin15-clang cargo build -p warp-runner --release --target x86_64-apple-darwin CC=x86_64-apple-darwin15-clang cargo build -p warp-runner --release --target x86_64-apple-darwin
x86_64-apple-darwin15-strip target/x86_64-apple-darwin/release/warp-runner x86_64-apple-darwin15-strip target/x86_64-apple-darwin/release/warp-runner
@ -11,8 +11,8 @@ build:
cargo build -p warp-runner --release --target x86_64-pc-windows-gnu cargo build -p warp-runner --release --target x86_64-pc-windows-gnu
strip target/x86_64-pc-windows-gnu/release/warp-runner.exe strip target/x86_64-pc-windows-gnu/release/warp-runner.exe
cargo build -p warp-packer --release --target x86_64-unknown-linux-gnu cargo build -p warp-packer --release --target x86_64-unknown-linux-musl
strip target/x86_64-unknown-linux-gnu/release/warp-packer strip target/x86_64-unknown-linux-musl/release/warp-packer
CC=x86_64-apple-darwin15-clang cargo build -p warp-packer --release --target x86_64-apple-darwin CC=x86_64-apple-darwin15-clang cargo build -p warp-packer --release --target x86_64-apple-darwin
x86_64-apple-darwin15-strip target/x86_64-apple-darwin/release/warp-packer x86_64-apple-darwin15-strip target/x86_64-apple-darwin/release/warp-packer

10
warp-args/Cargo.toml Normal file
View File

@ -0,0 +1,10 @@
[package]
name = "warp-args"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
bincode = "1.3"
serde = { version = "1.0", features = ["derive"] }

22
warp-args/src/lib.rs Normal file
View File

@ -0,0 +1,22 @@
use std::path::PathBuf;
use bincode::Options;
use serde::{Deserialize, Serialize};
pub const WARP_ARGS_MAGIC: &[u8] = b"DR1PWsJsM6KxNbng9Y38";
#[derive(Serialize, Deserialize, Debug)]
pub struct Args {
pub target_file_name: PathBuf,
pub prefix: Option<PathBuf>,
pub uid: Option<String>,
pub clean: bool,
}
pub fn bincode_options() -> impl bincode::Options {
bincode::DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
// Make sure bincode does not trust all size prefixes while scanning the binary
.with_limit(1_000_000)
}

View File

@ -1,13 +1,15 @@
[package] [package]
name = "warp-packer" name = "warp-packer"
version = "0.3.0" version = "0.4.0"
authors = ["Diego Giagio <diego@giagio.com>"] authors = ["Diego Giagio <diego@giagio.com>"]
edition = "2021"
[dependencies] [dependencies]
clap = "2.32.0" bincode = "1.3"
dirs = "1.0.4" clap = { version = "4.0", features = ["derive"] }
reqwest = "0.9.2"
tempdir = "0.3.7"
flate2 = "1.0" flate2 = "1.0"
tar = "0.4"
lazy_static = "1.1.0" lazy_static = "1.1.0"
tar = "0.4"
tempdir = "0.3.7"
uuid = { version = "1.2", features = ["v4"] }
warp-args = { path = "../warp-args" }

47
warp-packer/src/cli.rs Normal file
View File

@ -0,0 +1,47 @@
use std::path::PathBuf;
use clap::{Args, Parser, Subcommand};
#[derive(Parser, Debug)]
#[command(author, version, about)]
pub struct Cli {
#[command(subcommand)]
pub command: Command,
}
#[derive(Subcommand, Debug)]
pub enum Command {
Pack(PackArgs),
List,
}
#[derive(Args, Debug)]
pub struct PackArgs {
/// Sets the architecture. Use list subcommand to get possible options.
#[arg(short, long)]
pub arch: String,
/// Sets the input directory containing the application and dependencies
#[arg(short, long)]
pub input_dir: PathBuf,
/// Sets the application executable file name
#[arg(short, long)]
pub exec: PathBuf,
/// Sets the resulting self-contained application file name
#[arg(short, long)]
pub output: PathBuf,
/// Generate unique id for each package build
#[arg(short = 'q', long, default_value_t = false)]
pub unique_id: bool,
/// Prefix to use instead of single-file executable name
#[arg(short, long)]
pub prefix: Option<PathBuf>,
/// When using unique-id, do not look for and clean obsolete versions with the same prefix from cache
#[arg(short = 'n', long = "no-clean", action = clap::ArgAction::SetFalse)]
pub clean: bool,
}

View File

@ -1,42 +1,37 @@
extern crate clap; mod cli;
extern crate dirs;
extern crate flate2;
#[macro_use]
extern crate lazy_static;
extern crate reqwest;
extern crate tar;
extern crate tempdir;
use clap::{App, AppSettings, Arg}; use bincode::Options;
use flate2::Compression; use clap::Parser;
use flate2::write::GzEncoder; use flate2::write::GzEncoder;
use std::collections::HashMap; use flate2::Compression;
use lazy_static::lazy_static;
use std::error::Error; use std::error::Error;
use std::fs; use std::fs;
use std::fs::File; use std::fs::File;
use std::io; use std::io::{self, Write};
use std::io::copy;
use std::io::Write;
use std::path::Path; use std::path::Path;
use std::process; use std::process;
use tempdir::TempDir; use std::{collections::HashMap, io::BufWriter};
use uuid::Uuid;
use warp_args::{bincode_options, Args, WARP_ARGS_MAGIC};
const APP_NAME: &str = env!("CARGO_PKG_NAME"); use crate::cli::Command;
const AUTHOR: &str = env!("CARGO_PKG_AUTHORS");
const VERSION: &str = env!("CARGO_PKG_VERSION");
const RUNNER_MAGIC: &[u8] = b"tVQhhsFFlGGD3oWV4lEPST8I8FEPP54IM0q7daes4E1y3p2U2wlJRYmWmjPYfkhZ0PlT14Ls0j8fdDkoj33f2BlRJavLj3mWGibJsGt5uLAtrCDtvxikZ8UX2mQDCrgE\0";
const RUNNER_LINUX_X64: &[u8] = include_bytes!("../../target/x86_64-unknown-linux-gnu/release/warp-runner");
const RUNNER_MACOS_X64: &[u8] = include_bytes!("../../target/x86_64-apple-darwin/release/warp-runner");
const RUNNER_WINDOWS_X64: &[u8] = include_bytes!("../../target/x86_64-pc-windows-gnu/release/warp-runner.exe");
lazy_static! { lazy_static! {
static ref RUNNER_BY_ARCH: HashMap<&'static str, &'static [u8]> = { static ref RUNNER_BY_ARCH: HashMap<&'static str, &'static [u8]> = {
let mut m = HashMap::new(); let mut m = HashMap::new();
m.insert("linux-x64", RUNNER_LINUX_X64); m.insert(
m.insert("macos-x64", RUNNER_MACOS_X64); "linux-x64",
m.insert("windows-x64", RUNNER_WINDOWS_X64); include_bytes!("../../target/x86_64-unknown-linux-musl/release/warp-runner").as_slice(),
);
m.insert(
"macos-x64",
include_bytes!("../../target/x86_64-apple-darwin/release/warp-runner").as_slice(),
);
m.insert(
"windows-x64",
include_bytes!("../../target/x86_64-pc-windows-gnu/release/warp-runner.exe").as_slice(),
);
m m
}; };
} }
@ -50,43 +45,16 @@ macro_rules! bail {
}) })
} }
fn patch_runner(arch: &str, exec_name: &str) -> io::Result<Vec<u8>> { fn append_tgz(f: &mut impl io::Write, dir: &Path) -> io::Result<()> {
// Read runner executable in memory
let runner_contents = RUNNER_BY_ARCH.get(arch).unwrap();
let mut buf = runner_contents.to_vec();
// Set the correct target executable name into the local magic buffer
let magic_len = RUNNER_MAGIC.len();
let mut new_magic = vec![0; magic_len];
new_magic[..exec_name.len()].clone_from_slice(exec_name.as_bytes());
// Find the magic buffer offset inside the runner executable
let mut offs_opt = None;
for (i, chunk) in buf.windows(magic_len).enumerate() {
if chunk == RUNNER_MAGIC {
offs_opt = Some(i);
break;
}
}
if offs_opt.is_none() {
return Err(io::Error::new(io::ErrorKind::Other, "no magic found inside runner"));
}
// Replace the magic with the new one that points to the target executable
let offs = offs_opt.unwrap();
buf[offs..offs + magic_len].clone_from_slice(&new_magic);
Ok(buf)
}
fn create_tgz(dir: &Path, out: &Path) -> io::Result<()> {
let f = fs::File::create(out)?;
let gz = GzEncoder::new(f, Compression::best()); let gz = GzEncoder::new(f, Compression::best());
let mut tar = tar::Builder::new(gz); let mut tar = tar::Builder::new(gz);
tar.follow_symlinks(false); tar.follow_symlinks(false);
tar.append_dir_all(".", dir)?; tar.append_dir_all(".", dir)
Ok(()) }
fn append_args(f: &mut impl io::Write, args: &Args) {
f.write_all(WARP_ARGS_MAGIC).unwrap();
bincode_options().serialize_into(f, args).unwrap();
} }
#[cfg(target_family = "unix")] #[cfg(target_family = "unix")]
@ -102,76 +70,38 @@ fn create_app_file(out: &Path) -> io::Result<File> {
#[cfg(target_family = "windows")] #[cfg(target_family = "windows")]
fn create_app_file(out: &Path) -> io::Result<File> { fn create_app_file(out: &Path) -> io::Result<File> {
fs::OpenOptions::new() fs::OpenOptions::new().create(true).write(true).open(out)
.create(true)
.write(true)
.open(out)
} }
fn create_app(runner_buf: &Vec<u8>, tgz_path: &Path, out: &Path) -> io::Result<()> { fn main() -> Result<(), Box<dyn Error>> {
let mut outf = create_app_file(out)?; let args = cli::Cli::parse();
let mut tgzf = fs::File::open(tgz_path)?;
outf.write_all(runner_buf)?;
copy(&mut tgzf, &mut outf)?;
Ok(())
}
fn main() -> Result<(), Box<Error>> { let args = match args.command {
let args = App::new(APP_NAME) Command::List => {
.settings(&[AppSettings::ArgRequiredElseHelp, AppSettings::ColoredHelp]) for arch in RUNNER_BY_ARCH.keys() {
.version(VERSION) println!("{arch}");
.author(AUTHOR) }
.about("Create self-contained single binary application") return Ok(());
.arg(Arg::with_name("arch") }
.short("a") Command::Pack(args) => args,
.long("arch") };
.value_name("arch")
.help(&format!("Sets the architecture. Supported: {:?}", RUNNER_BY_ARCH.keys()))
.display_order(1)
.takes_value(true)
.required(true))
.arg(Arg::with_name("input_dir")
.short("i")
.long("input_dir")
.value_name("input_dir")
.help("Sets the input directory containing the application and dependencies")
.display_order(2)
.takes_value(true)
.required(true))
.arg(Arg::with_name("exec")
.short("e")
.long("exec")
.value_name("exec")
.help("Sets the application executable file name")
.display_order(3)
.takes_value(true)
.required(true))
.arg(Arg::with_name("output")
.short("o")
.long("output")
.value_name("output")
.help("Sets the resulting self-contained application file name")
.display_order(4)
.takes_value(true)
.required(true))
.get_matches();
let arch = args.value_of("arch").unwrap(); if !RUNNER_BY_ARCH.contains_key(&args.arch.as_str()) {
if !RUNNER_BY_ARCH.contains_key(&arch) { bail!(
bail!("Unknown architecture specified: {}, supported: {:?}", arch, RUNNER_BY_ARCH.keys()); "Unknown architecture specified: {}, supported: {:?}",
args.arch,
RUNNER_BY_ARCH.keys()
);
} }
let input_dir = Path::new(args.value_of("input_dir").unwrap()); if fs::metadata(&args.input_dir).is_err() {
if fs::metadata(input_dir).is_err() { bail!(
bail!("Cannot access specified input directory {:?}", input_dir); "Cannot access specified input directory {:?}",
args.input_dir
);
} }
let exec_name = args.value_of("exec").unwrap(); let exec_path = args.input_dir.join(&args.exec);
if exec_name.len() >= RUNNER_MAGIC.len() {
bail!("Executable name is too long, please consider using a shorter name");
}
let exec_path = Path::new(input_dir).join(exec_name);
match fs::metadata(&exec_path) { match fs::metadata(&exec_path) {
Err(_) => { Err(_) => {
bail!("Cannot find file {:?}", exec_path); bail!("Cannot find file {:?}", exec_path);
@ -183,16 +113,24 @@ fn main() -> Result<(), Box<Error>> {
} }
} }
let runner_buf = patch_runner(&arch, &exec_name)?; println!(
"Creating self-contained application binary {:?}...",
args.exec
);
let mut output = BufWriter::new(create_app_file(&args.output).unwrap());
output.write_all(RUNNER_BY_ARCH.get(&args.arch.as_str()).unwrap())?;
append_args(
&mut output,
&Args {
target_file_name: args.exec,
prefix: args.prefix,
uid: args.unique_id.then(|| format!("{}", Uuid::new_v4())),
clean: args.clean,
},
);
println!("Compressing input directory {:?}...", input_dir); println!("Compressing input directory {:?}...", args.input_dir);
let tmp_dir = TempDir::new(APP_NAME)?; append_tgz(&mut output, &args.input_dir).unwrap();
let tgz_path = tmp_dir.path().join("input.tgz");
create_tgz(&input_dir, &tgz_path)?;
let exec_name = Path::new(args.value_of("output").unwrap());
println!("Creating self-contained application binary {:?}...", exec_name);
create_app(&runner_buf, &tgz_path, &exec_name)?;
println!("All done"); println!("All done");
Ok(()) Ok(())

View File

@ -1,13 +1,17 @@
[package] [package]
name = "warp-runner" name = "warp-runner"
version = "0.3.0" version = "0.4.0"
authors = ["Diego Giagio <diego@giagio.com>"] authors = ["Diego Giagio <diego@giagio.com>"]
edition = "2021"
[dependencies] [dependencies]
memmem = "0.1.1" anyhow = "1.0"
bincode = "1.3"
dirs = "4.0"
flate2 = "1.0" flate2 = "1.0"
tar = "0.4"
dirs = "1.0.4"
winapi = "0.3.6"
log = "0.4.5" log = "0.4.5"
simple_logger = "1.0.1" memmem = "0.1.1"
remove_dir_all = "0.7"
simple_logger = "4.0"
tar = "0.4"
warp-args = { path = "../warp-args" }

View File

@ -1,9 +1,10 @@
use log::trace;
use std::env; use std::env;
use std::io;
#[cfg(target_family = "unix")] #[cfg(target_family = "unix")]
use std::fs; use std::fs;
#[cfg(target_family = "unix")] #[cfg(target_family = "unix")]
use std::fs::Permissions; use std::fs::Permissions;
use std::io;
#[cfg(target_family = "unix")] #[cfg(target_family = "unix")]
use std::os::unix::fs::PermissionsExt; use std::os::unix::fs::PermissionsExt;
use std::path::Path; use std::path::Path;
@ -36,17 +37,21 @@ fn do_execute(target: &Path, args: &[String]) -> io::Result<i32> {
.stderr(Stdio::inherit()) .stderr(Stdio::inherit())
.spawn()? .spawn()?
.wait()? .wait()?
.code().unwrap_or(1)) .code()
.unwrap_or(1))
} }
#[cfg(target_family = "windows")] #[cfg(target_family = "windows")]
fn is_script(target: &Path) -> bool { fn is_script(target: &Path) -> bool {
const SCRIPT_EXTENSIONS: &[&str] = &["bat", "cmd"]; const SCRIPT_EXTENSIONS: &[&str] = &["bat", "cmd"];
SCRIPT_EXTENSIONS.contains( SCRIPT_EXTENSIONS.contains(
&target.extension() &target
.extension()
.unwrap_or_default() .unwrap_or_default()
.to_string_lossy() .to_string_lossy()
.to_lowercase().as_str()) .to_lowercase()
.as_str(),
)
} }
#[cfg(target_family = "windows")] #[cfg(target_family = "windows")]
@ -66,7 +71,8 @@ fn do_execute(target: &Path, args: &[String]) -> io::Result<i32> {
.stderr(Stdio::inherit()) .stderr(Stdio::inherit())
.spawn()? .spawn()?
.wait()? .wait()?
.code().unwrap_or(1)) .code()
.unwrap_or(1))
} else { } else {
Ok(Command::new(target) Ok(Command::new(target)
.args(args) .args(args)
@ -75,6 +81,7 @@ fn do_execute(target: &Path, args: &[String]) -> io::Result<i32> {
.stderr(Stdio::inherit()) .stderr(Stdio::inherit())
.spawn()? .spawn()?
.wait()? .wait()?
.code().unwrap_or(1)) .code()
.unwrap_or(1))
} }
} }

View File

@ -1,14 +1,14 @@
extern crate flate2; use anyhow::{anyhow, Context, Result};
extern crate memmem; use bincode::Options;
extern crate tar; use flate2::read::GzDecoder;
use log::trace;
use self::flate2::read::GzDecoder; use memmem::{Searcher, TwoWaySearcher};
use self::memmem::{Searcher, TwoWaySearcher};
use self::tar::Archive;
use std::fs::File; use std::fs::File;
use std::io; use std::io;
use std::io::{BufReader, Read, Seek, SeekFrom}; use std::io::{BufReader, Read, Seek, SeekFrom};
use std::path::Path; use std::path::Path;
use tar::Archive;
use warp_args::{bincode_options, Args, WARP_ARGS_MAGIC};
struct FileSearcher<'a> { struct FileSearcher<'a> {
buf_reader: BufReader<File>, buf_reader: BufReader<File>,
@ -36,7 +36,7 @@ impl<'a> Iterator for FileSearcher<'a> {
match self.buf_reader.seek(SeekFrom::Start(self.offs as u64)) { match self.buf_reader.seek(SeekFrom::Start(self.offs as u64)) {
Ok(_) => {} Ok(_) => {}
Err(e) => return Some(Err(e)) Err(e) => return Some(Err(e)),
} }
loop { loop {
@ -53,7 +53,7 @@ impl<'a> Iterator for FileSearcher<'a> {
self.offs += 1; // one past the match so we can try again if necessary self.offs += 1; // one past the match so we can try again if necessary
break; break;
} }
None => self.offs += n None => self.offs += n,
} }
} }
Err(e) => { Err(e) => {
@ -68,32 +68,53 @@ impl<'a> Iterator for FileSearcher<'a> {
const GZIP_MAGIC: &[u8] = b"\x1f\x8b\x08"; const GZIP_MAGIC: &[u8] = b"\x1f\x8b\x08";
pub fn extract_to(src: &Path, dst: &Path) -> io::Result<()> { pub fn extract_to(src: &Path, dst: &Path) -> Result<()> {
let mut found = false; FileSearcher::new(src, GZIP_MAGIC)
.context("failed searching own binary")?
let searcher = FileSearcher::new(src, GZIP_MAGIC)?; .map(Result::unwrap)
for result in searcher { .find(|offs| extract_at_offset(src, *offs, dst).unwrap())
let offs = result?; .ok_or_else(|| anyhow!("No tarball found inside binary file {}", src.display()))
if extract_at_offset(src, offs, dst).is_ok() { .map(|offs| {
trace!("tarball found at offset {} was extracted successfully", offs); trace!(
found = true; "tarball found at offset {} was extracted successfully",
break; offs
} );
} })
if found {
Ok(())
} else {
Err(io::Error::new(io::ErrorKind::Other, "no tarball found inside binary"))
}
} }
fn extract_at_offset(src: &Path, offs: usize, dst: &Path) -> io::Result<()> { fn extract_at_offset(src: &Path, offs: usize, dst: &Path) -> Result<bool> {
let mut f = File::open(src)?; let mut f = File::open(src)
f.seek(SeekFrom::Start(offs as u64))?; .with_context(|| format!("Failed to open file to extract from: {}", src.display()))?;
f.seek(SeekFrom::Start(offs as u64))
.with_context(|| format!("Failed to read file to extract from: {}", src.display()))?;
let gz = GzDecoder::new(f); let gz = GzDecoder::new(f);
let mut tar = Archive::new(gz); let mut tar = Archive::new(gz);
tar.unpack(dst)?; Ok(tar.unpack(dst).is_ok())
Ok(()) }
pub fn get_args(src: &Path) -> Result<Args> {
FileSearcher::new(src, WARP_ARGS_MAGIC)
.context("failed searching own binary")?
.map(Result::unwrap)
.find_map(|offs| {
Some((
offs,
extract_args_at_offset(src, offs + WARP_ARGS_MAGIC.len()).unwrap()?,
))
})
.ok_or_else(|| anyhow!("No arguments found inside binary file {}", src.display()))
.map(|(offs, args)| {
trace!("args found at offset {} was extracted successfully", offs);
args
})
}
fn extract_args_at_offset(src: &Path, offs: usize) -> Result<Option<Args>> {
let mut f = File::open(src)
.with_context(|| format!("Failed to open file to extract from: {}", src.display()))?;
f.seek(SeekFrom::Start(offs as u64))
.with_context(|| format!("Failed to read file to extract from: {}", src.display()))?;
Ok(bincode_options().deserialize_from(f).ok())
} }

View File

@ -1,82 +1,133 @@
extern crate dirs; use anyhow::Context;
#[macro_use] use anyhow::{anyhow, Result};
extern crate log; use log::{trace, Level};
extern crate simple_logger; use remove_dir_all::remove_dir_all;
use log::Level;
use std::env; use std::env;
use std::error::Error; use std::ffi::OsStr;
use std::ffi::*;
use std::fs; use std::fs;
use std::io; use std::path::{Path, PathBuf};
use std::path::*;
use std::process; use std::process;
use warp_args::Args;
use crate::extractor::get_args;
mod extractor;
mod executor; mod executor;
mod extractor;
static TARGET_FILE_NAME_BUF: &'static [u8] = b"tVQhhsFFlGGD3oWV4lEPST8I8FEPP54IM0q7daes4E1y3p2U2wlJRYmWmjPYfkhZ0PlT14Ls0j8fdDkoj33f2BlRJavLj3mWGibJsGt5uLAtrCDtvxikZ8UX2mQDCrgE\0"; static STATIC_SUBFOLDER_NAME: &str = "static";
fn target_file_name() -> &'static str { fn cache_path(target: &str) -> Result<PathBuf> {
let nul_pos = TARGET_FILE_NAME_BUF.iter() Ok(dirs::data_local_dir()
.position(|elem| *elem == b'\0') .ok_or_else(|| anyhow!("No data local dir found"))?
.expect("TARGET_FILE_NAME_BUF has no NUL terminator");
let slice = &TARGET_FILE_NAME_BUF[..(nul_pos + 1)];
CStr::from_bytes_with_nul(slice)
.expect("Can't convert TARGET_FILE_NAME_BUF slice to CStr")
.to_str()
.expect("Can't convert TARGET_FILE_NAME_BUF CStr to str")
}
fn cache_path(target: &str) -> PathBuf {
dirs::data_local_dir()
.expect("No data local dir found")
.join("warp") .join("warp")
.join("packages") .join("packages")
.join(target) .join(target))
} }
fn extract(exe_path: &Path, cache_path: &Path) -> io::Result<()> { fn extract(exe_path: &Path, cache_path: &Path) -> Result<()> {
fs::remove_dir_all(cache_path).ok(); if cache_path.exists() {
extractor::extract_to(&exe_path, &cache_path)?; remove_dir_all(cache_path)
.with_context(|| format!("Failed to remove directory {}", cache_path.display()))?;
}
extractor::extract_to(exe_path, cache_path).with_context(|| {
format!(
"Failed to extract {} to {}",
exe_path.display(),
cache_path.display()
)
})
}
fn create_cache_folder(self_path: &Path, args: &Args) -> Result<PathBuf> {
let prefix = args
.prefix
.as_deref()
.unwrap_or_else(|| Path::new(self_path.file_name().unwrap()));
let cache_path = cache_path(&prefix.to_string_lossy())?;
trace!("self_path={:?}", self_path);
trace!("prefix={:?}", prefix);
trace!("cache_path={:?}", cache_path);
if cache_path.exists() && !fs::metadata(&cache_path)?.is_dir() {
return Err(anyhow!("cache at {:?} is not a directory", &cache_path));
} else {
fs::create_dir_all(&cache_path)?;
}
Ok(cache_path)
}
fn clean_cache(cache_folder: &Path, self_path: &Path, args: &Args) -> Result<()> {
if args.uid.is_none() {
let subfolder = cache_folder.join(STATIC_SUBFOLDER_NAME);
if subfolder.exists()
&& fs::metadata(&subfolder)?.modified()? < fs::metadata(self_path)?.modified()?
{
trace!("static cache older than source, removing");
remove_dir_all(subfolder)?;
}
return Ok(());
}
if !args.clean {
return Ok(());
}
let uid = OsStr::new(args.uid.as_ref().unwrap()); // Checked above
let static_folder = OsStr::new(STATIC_SUBFOLDER_NAME);
trace!("cleaning cache");
for entry in fs::read_dir(cache_folder)? {
let entry = entry?;
if entry.file_name() == static_folder {
trace!("skipped static subfolder {:?}", static_folder);
continue;
}
if entry.file_name() == uid {
trace!("skipped own uid {:?}", uid);
continue;
}
trace!("removing entry {:?}", entry);
if let Err(err) = remove_dir_all(entry.path()) {
eprintln!(
"Error while attempting to remove directory {:?}: {err}",
entry.path()
);
}
}
Ok(()) Ok(())
} }
fn main() -> Result<(), Box<Error>> { fn main() -> Result<()> {
if env::var("WARP_TRACE").is_ok() { if env::var("WARP_TRACE").is_ok() {
simple_logger::init_with_level(Level::Trace)?; simple_logger::init_with_level(Level::Trace)?;
} }
let self_path = env::current_exe()?; let self_path = env::current_exe()?;
let self_file_name = self_path.file_name().unwrap(); let args = get_args(&self_path).unwrap();
let cache_path = cache_path(&self_file_name.to_string_lossy()); trace!("args = {:?}", args);
trace!("self_path={:?}", self_path); let cache_path = create_cache_folder(&self_path, &args)?;
trace!("self_file_name={:?}", self_file_name); clean_cache(&cache_path, &self_path, &args)?;
trace!("cache_path={:?}", cache_path);
let target_file_name = target_file_name(); let subfolder = args.uid.as_deref().unwrap_or(STATIC_SUBFOLDER_NAME);
let target_path = cache_path.join(target_file_name); let cache_path = cache_path.join(subfolder);
trace!("target_exec={:?}", target_file_name); let target_path = cache_path.join(&args.target_file_name);
trace!("target_exec={:?}", args.target_file_name);
trace!("target_path={:?}", target_path); trace!("target_path={:?}", target_path);
match fs::metadata(&cache_path) { if !cache_path.exists() {
Ok(cache) => { trace!("cache empty, extracting");
if cache.modified()? >= fs::metadata(&self_path)?.modified()? { extract(&self_path, &cache_path)?;
trace!("cache is up-to-date");
} else {
trace!("cache is outdated");
extract(&self_path, &cache_path)?;
}
}
Err(_) => {
trace!("cache not found");
extract(&self_path, &cache_path)?;
}
} }
let exit_code = executor::execute(&target_path)?; process::exit(executor::execute(&target_path)?);
process::exit(exit_code);
} }