Get basic package installation implemented, with several TODOS left.
This commit is contained in:
Nathan Fisher
parent
f4e87ee500
commit
13dff6bd96
6
Cargo.lock
generated
6
Cargo.lock
generated
@ -282,9 +282,9 @@ dependencies = [
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[[package]]
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name = "crossbeam-channel"
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version = "0.5.7"
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version = "0.5.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cf2b3e8478797446514c91ef04bafcb59faba183e621ad488df88983cc14128c"
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checksum = "a33c2bf77f2df06183c3aa30d1e96c0695a313d4f9c453cc3762a6db39f99200"
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dependencies = [
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"cfg-if",
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"crossbeam-utils",
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@ -560,7 +560,7 @@ dependencies = [
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[[package]]
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name = "hpk-package"
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version = "0.1.0"
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source = "git+https://git.hitchhiker-linux.org/jeang3nie/hpk-package.git#acbdf2d99284b69a48601f3aeb0a56f295872a4c"
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source = "git+https://git.hitchhiker-linux.org/jeang3nie/hpk-package.git#00683722d64a9c2f619e6c5378ab7b571b32ecc8"
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dependencies = [
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"chrono",
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"deku",
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@ -16,6 +16,8 @@ There is no top level directory in a package archive. Files intended to go into
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```Sh
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.
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├── package.ron
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├── appdata.xml
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├── postinstall.sh
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├── etc
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│ └── hpk
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│ └── conf.ron.new
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@ -33,7 +35,6 @@ There is no top level directory in a package archive. Files intended to go into
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└── man8
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└── hpk-package-format.8
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11 directories, 7 files
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```
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Files inside of *etc* and *var* are expected to be configurable by the system
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administrator or may change at runtime, respectively, and so are not overwritten
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@ -50,7 +51,7 @@ to start at boot or other related tasks.
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The file *package.ron* contains all of the required metadata about a package, such
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as a list of files to be installed, their checksums, runtime dependencies etc.
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## package.ron
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## package.ron [required]
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An example *package.ron*
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```Ron
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Package(
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@ -95,7 +96,6 @@ Package(
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gid: Some(42),
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),
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]),
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post_install: Some("bar -u baz")
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)
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```
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### Descriptions of the fields
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@ -116,3 +116,15 @@ Package(
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do not already exist
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- post_install: an optional Posix shell script (minus shebang line) to be run
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after installing the package
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## appdata.xml [optional]
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This is an [appstream](https://www.freedesktop.org/wiki/Distributions/AppStream/) metadata
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file used primarily by software stores or graphical package managers. If the source
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distribution includes this file, it should be included in the package. If the source
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distribution does not contain this file, then it can be omitted or an appropriate file
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generated at the packager's discretion.
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## postinstall.sh [optional]
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This is a POSIX shell compatible script to be run in order to finish installation. Heavy
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use of this capability is discouraged. If the desired action could be provided by hooks
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[see src/hooks/mod.rs] then please file a bug report to request the feature be added.
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@ -25,6 +25,7 @@ pub enum Message {
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Failure(String),
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}
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/// Creates a package archive
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pub struct Creator {
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path: PathBuf,
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entries: Vec<PathBuf>,
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@ -26,7 +26,11 @@ pub struct Update {
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impl fmt::Display for Update {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(f, "{}-{}_{}_{}", self.name, self.version, self.arch, self.release)
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write!(
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f,
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"{}-{}_{}_{}",
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self.name, self.version, self.arch, self.release
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)
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}
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}
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@ -1,6 +1,24 @@
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use std::{io, path::{PathBuf, Path}, ffi::OsStr, sync::mpsc::Sender};
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#![allow(dead_code)]
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pub use error::InstallError;
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use hpk_package::{Package, User, Group};
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use hpk_package::{
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sha2::{Digest, Sha256},
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tar::Archive,
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Entry, Group, Package, User,
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};
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use rayon::prelude::{IntoParallelRefIterator, ParallelIterator};
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use std::{
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ffi::OsStr,
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fmt::Write as _,
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fs::{self, DirBuilder, File},
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io::{self, BufWriter, Write},
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os::{
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self,
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unix::{fs::DirBuilderExt, prelude::OpenOptionsExt},
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},
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path::{Path, PathBuf},
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sync::{mpsc::Sender, Mutex},
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};
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use zstd::Decoder;
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pub struct Link {
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pub path: PathBuf,
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@ -8,6 +26,8 @@ pub struct Link {
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}
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pub enum InstallMessage {
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ArchiveRead,
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ArchiveLen(usize),
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FileInstalled(PathBuf),
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DirectoryCreated(PathBuf),
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LinkCreated(Link),
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@ -17,6 +37,8 @@ pub enum InstallMessage {
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}
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pub struct Installer<T: io::Read> {
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/// The filesystem root under which to install this package.
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/// Normally this is "/".
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path: PathBuf,
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package: Package,
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reader: T,
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@ -25,22 +47,146 @@ pub struct Installer<T: io::Read> {
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impl<T: io::Read> Installer<T> {
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pub fn new<P: AsRef<OsStr>>(path: P, package: Package, reader: T) -> Self {
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let path = Path::new(&path).to_path_buf();
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Self { path, package, reader }
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Self {
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path,
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package,
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reader,
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}
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}
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pub fn install(&mut self, sender: Sender<InstallMessage>) -> Result<(), Box<InstallError>> {
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unimplemented!();
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pub fn install(self, sender: Sender<InstallMessage>) -> Result<(), InstallError> {
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let reader = Decoder::new(self.reader)?;
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let mut archive = Archive::read(reader)?;
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sender.send(InstallMessage::ArchiveRead)?;
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let pr_node = match archive.pop("package.ron") {
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Some(node) => node,
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None => return Err(InstallError::MissingManifest),
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};
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let pinstall = archive.pop("postinstall.sh");
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let appstream = archive.pop("appdata.xml");
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let len = archive.nodes.len();
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sender.send(InstallMessage::ArchiveLen(len))?;
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let mut db_pkgdir = crate::get_dbdir(Some(self.path.clone()));
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db_pkgdir.push(&self.package.name);
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if !db_pkgdir.exists() {
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fs::create_dir_all(&db_pkgdir)?;
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}
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let mut db_file = db_pkgdir.clone();
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db_file.push("package.ron");
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if db_file.exists() {
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fs::remove_file(&db_file)?;
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}
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let fd = File::create(&db_file)?;
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let writer = BufWriter::new(fd);
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pr_node.write(writer)?;
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let path = &self.path;
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let package = &self.package;
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let sender = Mutex::new(sender);
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archive.nodes.par_iter().try_for_each(|node| {
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let mut path = path.clone();
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let fpath = node.header.file_path()?;
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let entry = package
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.plist
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.entries
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.iter()
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.find(|&x| match x {
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Entry::File {
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path,
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sha256sum: _,
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mode: _,
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size: _,
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} => path == &fpath,
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Entry::Link { path, target: _ } => path == &fpath,
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Entry::Directory { path, mode: _ } => path == &fpath,
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})
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.unwrap();
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path = path.join(&fpath);
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if let Some(parent) = path.parent() {
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if !parent.exists() {
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fs::create_dir_all(&parent)?;
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}
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}
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if path.exists() {
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if path.is_dir() {
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fs::remove_dir(&path)?;
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} else if path.is_symlink() || path.is_file() {
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fs::remove_file(&path)?;
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}
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}
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match entry {
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Entry::Directory { path: _, mode } => {
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DirBuilder::new().mode(*mode).create(&path)?;
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sender
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.lock()
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.unwrap()
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.send(InstallMessage::DirectoryCreated(path))?;
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}
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Entry::Link { path: _, target } => {
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os::unix::fs::symlink(&path, &target)?;
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sender
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.lock()
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.unwrap()
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.send(InstallMessage::LinkCreated(Link {
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path,
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target: target.clone(),
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}))?;
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}
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Entry::File {
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path: _,
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sha256sum,
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mode,
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size: _,
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} => {
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let mut buf = vec![];
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node.clone().write(&mut buf)?;
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let mut sum = String::new();
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let mut hasher = Sha256::new();
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hasher.update(&buf);
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let res = hasher.finalize();
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for c in res {
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write!(sum, "{c:02x}")?;
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}
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if sha256sum != &sum {
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return Err(InstallError::ChecksumMismatch);
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}
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let fd = File::options().mode(*mode).write(true).open(&path)?;
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let mut writer = BufWriter::new(fd);
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writer.write_all(&buf)?;
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sender
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.lock()
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.unwrap()
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.send(InstallMessage::FileInstalled(path))?;
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}
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}
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Ok::<(), InstallError>(())
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})?;
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let sender = sender.into_inner()?;
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if let Some(node) = appstream {
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let mut appdatafile = db_pkgdir;
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appdatafile.push("appdata.xml");
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let fd = File::open(appdatafile)?;
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let writer = BufWriter::new(fd);
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node.write(writer)?;
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}
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Ok(())
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}
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}
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mod error {
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use std::{io, fmt, error::Error};
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use hpk_package::tar;
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use std::{error::Error, fmt, io, sync::{mpsc::{SendError, Sender}, PoisonError}};
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use super::InstallMessage;
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#[derive(Debug)]
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pub enum InstallError {
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Fmt(fmt::Error),
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IO(io::Error),
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SendError(SendError<InstallMessage>),
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Tar(tar::Error),
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MissingManifest,
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MutexError,
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ChecksumMismatch,
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}
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impl fmt::Display for InstallError {
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@ -52,15 +198,42 @@ mod error {
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impl Error for InstallError {
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fn source(&self) -> Option<&(dyn Error + 'static)> {
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match self {
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Self::Fmt(e) => Some(e),
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Self::IO(e) => Some(e),
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Self::Tar(e) => Some(e),
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Self::SendError(e) => Some(e),
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_ => None,
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}
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}
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}
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impl From<fmt::Error> for InstallError {
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fn from(value: fmt::Error) -> Self {
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Self::Fmt(value)
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}
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}
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impl From<io::Error> for InstallError {
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fn from(value: io::Error) -> Self {
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Self::IO(value)
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}
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}
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impl From<PoisonError<Sender<InstallMessage>>> for InstallError {
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fn from(_value: PoisonError<Sender<InstallMessage>>) -> Self {
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Self::MutexError
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}
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}
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impl From<SendError<InstallMessage>> for InstallError {
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fn from(value: SendError<InstallMessage>) -> Self {
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Self::SendError(value)
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}
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}
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impl From<hpk_package::tar::Error> for InstallError {
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fn from(value: hpk_package::tar::Error) -> Self {
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Self::Tar(value)
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}
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}
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}
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