Indexer: Support HTTP fetching + misc improvements

This commit is contained in:
Yorhel 2016-11-06 09:21:53 +01:00
parent aff68205b0
commit 35fab522d6
4 changed files with 345 additions and 24 deletions

289
indexer/Cargo.lock generated
View file

@ -5,6 +5,7 @@ dependencies = [
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@ -57,6 +58,17 @@ dependencies = [
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@ -134,11 +146,70 @@ name = "fallible-iterator"
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@ -148,6 +219,11 @@ dependencies = [
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@ -167,11 +243,24 @@ name = "libc"
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@ -185,6 +274,65 @@ dependencies = [
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@ -203,6 +351,14 @@ name = "pkg-config"
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@ -227,6 +383,14 @@ dependencies = [
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@ -253,11 +417,46 @@ dependencies = [
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@ -285,6 +484,47 @@ dependencies = [
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View file

@ -14,3 +14,4 @@ encoding = { git = "https://github.com/lifthrasiir/rust-encoding", features = ["
ring = "0.5.3"
postgres = "0.12.0"
clap = "2.16.3"
hyper = "0.9.11"

View file

@ -8,6 +8,7 @@ extern crate libc;
extern crate ring;
extern crate encoding;
extern crate postgres;
extern crate hyper;
mod archive;
mod archread;
@ -29,9 +30,9 @@ fn main() {
let arg = clap_app!(indexer =>
(about: "Manned.org man page indexer")
(@arg v: -v +multiple "Increase verbosity")
(@arg host: -h +required +takes_value "PostgreSQL connection string")
(@subcommand pkg =>
(about: "Index a single package")
(@arg force: --force "Overwrite existing indexed package")
(@arg sys: --sys +required +takes_value "System short-name")
(@arg cat: --cat +required +takes_value "Package category")
(@arg pkg: --pkg +required +takes_value "Package name")
@ -52,7 +53,11 @@ fn main() {
.filter(Some("postgres"), if verbose >= 4 { log::LogLevelFilter::Trace } else { log::LogLevelFilter::Info })
.init().unwrap();
let db = match postgres::Connection::connect(arg.value_of("host").unwrap(), postgres::TlsMode::None) {
let dbhost = match std::env::var("MANNED_PG") {
Ok(x) => x,
Err(_) => { error!("MANNED_PG not set."); return }
};
let db = match postgres::Connection::connect(&dbhost[..], postgres::TlsMode::None) {
Ok(x) => x,
Err(x) => { error!("Can't connect to postgres: {}", x); return },
};
@ -60,6 +65,7 @@ fn main() {
if let Some(matches) = arg.subcommand_matches("pkg") {
pkg::pkg(&db, pkg::PkgOpt {
force: matches.is_present("force"),
sys: sysbyshort(&db, matches.value_of("sys").unwrap()),
cat: matches.value_of("cat").unwrap(),
pkg: matches.value_of("pkg").unwrap(),

View file

@ -1,6 +1,7 @@
use std;
use std::io::Read;
use postgres;
use hyper;
use archive;
use archread;
@ -8,11 +9,12 @@ use man;
use archive::Archive;
pub struct PkgOpt<'a> {
pub force: bool,
pub sys: i32,
pub cat: &'a str,
pub pkg: &'a str,
pub ver: &'a str,
pub date: &'a str,
pub date: &'a str, // TODO: Option to extract date from package metadata itself
pub file: &'a str
}
@ -30,17 +32,26 @@ fn insert_pkg(tr: &postgres::transaction::Transaction, opt: &PkgOpt) -> Option<i
Ok(r) => r.get(0).get(0),
};
// TODO: option to overwrite an existing package version
let q = "INSERT INTO package_versions (package, version, released) VALUES($1, $2, $3::text::date) RETURNING id";
let verid: i32 = match tr.query(q, &[&pkgid, &opt.ver, &opt.date]) {
Err(e) => {
error!("Can't insert package version in database: {}", e);
return None;
},
Ok(r) => r.get(0).get(0),
};
trace!("Package pkgid {} verid {}", pkgid, verid);
Some(verid)
let q = "SELECT id FROM package_versions WHERE package = $1 AND version = $2 AND released = $3::text::date";
let res = tr.query(q, &[&pkgid, &opt.ver, &opt.date]).unwrap();
let verid : i32;
if res.is_empty() {
let q = "INSERT INTO package_versions (package, version, released) VALUES($1, $2, $3::text::date) RETURNING id";
verid = tr.query(q, &[&pkgid, &opt.ver, &opt.date]).unwrap().get(0).get(0);
trace!("New package pkgid {} verid {}", pkgid, verid);
Some(verid)
} else if opt.force {
verid = res.get(0).get(0);
trace!("Overwriting package pkgid {} verid {}", pkgid, verid);
tr.query("DELETE FROM man WHERE package = $1", &[&verid]).unwrap();
Some(verid)
} else {
info!("Package already in database, pkgid {} verid {}", pkgid, res.get(0).get::<usize,i32>(0));
None
}
}
@ -50,7 +61,7 @@ fn insert_man_row(tr: &postgres::GenericConnection, verid: i32, path: &str, hash
if let Err(e) = tr.execute(
"INSERT INTO man (package, name, filename, locale, hash, section) VALUES ($1, $2, '/'||$3, $4, $5, $6)",
&[&verid, &name, &path, &locale, &hash, &sect]
) {
) {
// I think this can only happen if archread gives us the same file twice, which really
// shouldn't happen. But I'd rather continue with an error logged than panic.
error!("Can't insert verid {} fn {}: {}", verid, path, e);
@ -64,11 +75,12 @@ fn insert_man(tr: &postgres::GenericConnection, verid: i32, paths: &[&str], ent:
Ok(x) => x,
};
// TODO: Overwrite entry if the contents are different? It's possible that earlier decoding
// Overwrite entry if the contents are different. It's possible that earlier decoding
// implementations didn't properly detect the encoding. (On the other hand, due to differences
// in filenames it's also possible that THIS decoding step went wrong. Ugh)
// in filenames it's also possible that THIS decoding step went wrong, but that's slightly less
// likely)
tr.execute(
"INSERT INTO contents (hash, content) VALUES($1, $2) ON CONFLICT (hash) DO NOTHING",
"INSERT INTO contents (hash, content) VALUES($1, $2) ON CONFLICT (hash) DO UPDATE SET content = $2",
&[&dig.as_ref(), &cont]
).unwrap();
@ -94,11 +106,24 @@ fn insert_link(tr: &postgres::GenericConnection, verid: i32, src: &str, dest: &s
fn with_pkg<T,F>(file: &str, cb: F) -> std::io::Result<T>
where F: FnOnce(Option<archive::ArchiveEntry>) -> std::io::Result<T>
{
// TODO: Support streaming from URLs
// TODO: How does .deb support fit into this? (Or anything else with metadata)
let mut f = try!(std::fs::File::open(file));
let ent = try!(Archive::open_archive(&mut f));
cb(ent)
// TODO: .deb support
if file.starts_with("http://") || file.starts_with("https://") {
let mut res = try!(
hyper::Client::new().get(file).send()
.map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, format!("Hyper: {}", e)))
);
if !res.status.is_success() {
return Err(std::io::Error::new(std::io::ErrorKind::Other, format!("HTTP: {}", res.status) ));
}
let ent = try!(Archive::open_archive(&mut res));
cb(ent)
} else {
let mut res = try!(std::fs::File::open(file));
let ent = try!(Archive::open_archive(&mut res));
cb(ent)
}
}
@ -121,7 +146,7 @@ fn index_pkg(tr: &postgres::GenericConnection, opt: &PkgOpt, verid: i32) -> std:
pub fn pkg(conn: &postgres::GenericConnection, opt: PkgOpt) {
info!("Handling pkg: {} / {} / {} - {} @ {} in {}", opt.sys, opt.cat, opt.pkg, opt.ver, opt.date, opt.file);
info!("Handling pkg: {} / {} / {} - {} @ {} @ {}", opt.sys, opt.cat, opt.pkg, opt.ver, opt.date, opt.file);
let tr = conn.transaction().unwrap();
tr.set_rollback();