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Convert fetch-indexes to C++

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main
Simon Quigley 3 weeks ago
parent 23894aede2
commit 706eb25581
12 changed files with 733 additions and 199 deletions
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2
.gitignore vendored
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__pycache__
fetch-indexes
fetch-indexes-cpp/build

28
configs/fetch-indexes.yaml
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MAIN_ARCHIVE: "http://us.archive.ubuntu.com/ubuntu/dists/"
PORTS_ARCHIVE: "http://us.ports.ubuntu.com/ubuntu-ports/dists/"
LP_TEAM: "lubuntu-ci"
SOURCE_PPA: "unstable-ci-proposed"
DEST_PPA: "unstable-ci"
ARCHES:
- "amd64"
PORTS_ARCHES:
- "arm64"
- "armhf"
- "ppc64el"
- "riscv64"
- "s390x"
BRITNEY_CACHE: "cache/"
BRITNEY_DATADIR: "data/"
BRITNEY_OUTDIR: "output/"
BRITNEY_HINTDIR: "../hints-ubuntu/"
BRITNEY_LOC: "/srv/lubuntu-ci/repos/britney2-ubuntu/britney.py"
LOG_DIR: "/srv/lubuntu-ci/output/logs/britney"
MAX_LOG_AGE_DAYS: 1
RELEASES:
- "plucky"
- "oracular"
- "noble"

161
fetch-indexes
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#!/bin/bash
# download current package indexes to data/<series>{,-proposed}/ for running
# britney against a PPA. The PPA will play the role of "-proposed" (i. e.
# "unstable" in britney terms, containing the updated packages to test), the
# Ubuntu archive has the "-release" part (i. e. "testing" in britney terms, in
# which the -proposed packages are being landed).
#
# Copyright (C) 2019-2024 Simon Quigley <tsimonq2@ubuntu.com>
# Copyright (C) Canonical Ltd
# Author: Martin Pitt <martin.pitt@ubuntu.com>
# Author: Robert Bruce Park <robert.park@canonical.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
set -u
./pending-packages $RELEASE || exit 0
export MAIN_ARCHIVE="http://us.archive.ubuntu.com/ubuntu/dists/"
export PORTS_ARCHIVE="http://us.ports.ubuntu.com/ubuntu-ports/dists/"
export LP_TEAM="lubuntu-ci"
export SOURCE_PPA="unstable-ci-proposed"
export DEST_PPA="unstable-ci"
export SOURCE_PPA_URL="https://ppa.launchpadcontent.net/$LP_TEAM/$SOURCE_PPA/ubuntu/dists/$RELEASE/main";
export DEST_PPA_URL="https://ppa.launchpadcontent.net/$LP_TEAM/$DEST_PPA/ubuntu/dists/$RELEASE/main";
export ARCHES="amd64"
export PORTS_ARCHES="arm64 armhf ppc64el riscv64 s390x"
export BRITNEY_CACHE="cache/"
export BRITNEY_DATADIR="data/"
export BRITNEY_OUTDIR="output/"
export BRITNEY_HINTDIR="../hints-ubuntu/"
export BRITNEY_LOC="/srv/lubuntu-ci/repos/britney2-ubuntu/britney.py"
export BRITNEY_TIMESTAMP=$(date +"%Y-%m-%d_%H:%M:%S")
echo "Release: $RELEASE";
echo "Timestamp: $BRITNEY_TIMESTAMP"
# Download files in parallel in background, only if there is an update
refresh() {
DIR=$BRITNEY_CACHE/$pocket/$(echo $1 | rev | cut --delimiter=/ --fields=2,3 | rev)
mkdir --parents $DIR
touch --no-create $BRITNEY_CACHE $BRITNEY_CACHE/$pocket "$(dirname $DIR)" $DIR # Timestamp thwarts expire.sh
wget --directory-prefix $DIR --timestamping $1 --append-output $DIR/$$-wget-log --no-verbose &
}
echo 'Refreshing package indexes...'
for pocket in $RELEASE $RELEASE-updates; do
for component in main restricted universe multiverse; do
for arch in $ARCHES; do
refresh $MAIN_ARCHIVE/$pocket/$component/binary-$arch/Packages.gz
done
for arch in $PORTS_ARCHES; do
refresh $PORTS_ARCHIVE/$pocket/$component/binary-$arch/Packages.gz
done
refresh $MAIN_ARCHIVE/$pocket/$component/source/Sources.gz
done
done
# Treat the destination PPA as just another pocket
for pocket in $RELEASE-ppa-proposed; do
for arch in $ARCHES $PORTS_ARCHES; do
refresh $DEST_PPA_URL/source/Sources.gz
refresh $DEST_PPA_URL/binary-$arch/Packages.gz
done
done
# Get the source PPA
pocket=$SOURCE_PPA-$RELEASE
for arch in $ARCHES $PORTS_ARCHES; do
refresh $SOURCE_PPA_URL/binary-$arch/Packages.gz
done
refresh $SOURCE_PPA_URL/source/Sources.gz
wait # for wgets to finish
find $BRITNEY_DATADIR -name "$$-wget-log*" -exec cat '{}' \; -delete 1>&2
echo 'Building britney indexes...'
mkdir --parents "$BRITNEY_OUTDIR/$BRITNEY_TIMESTAMP/"
# "Unstable" is SOURCE_PPA
DEST=$BRITNEY_DATADIR/$RELEASE-proposed
mkdir --parents $DEST
mkdir -pv $BRITNEY_DATADIR/$RELEASE-proposed/state/
touch $BRITNEY_DATADIR/$RELEASE-proposed/state/age-policy-dates
touch --no-create $DEST
ln --verbose --symbolic --force --no-dereference $BRITNEY_HINTDIR $DEST/Hints
zcat $BRITNEY_CACHE/$SOURCE_PPA-$RELEASE/*/source/Sources.gz > $DEST/Sources
for arch in $ARCHES $PORTS_ARCHES; do
zcat $BRITNEY_CACHE/$SOURCE_PPA-$RELEASE/*/binary-$arch/Packages.gz > $DEST/Packages_${arch}
done
touch $DEST/Blocks $DEST/Dates
# "Testing" is a combination of the archive and DEST_PPA
DEST=$BRITNEY_DATADIR/$RELEASE
mkdir --parents $DEST
mkdir -pv $BRITNEY_DATADIR/$RELEASE/state/
touch $BRITNEY_DATADIR/$RELEASE/state/age-policy-dates
touch --no-create $DEST
ln --verbose --symbolic --force --no-dereference $BRITNEY_HINTDIR $DEST/Hints
zcat $BRITNEY_CACHE/$RELEASE*/*/source/Sources.gz > $DEST/Sources
sed -i "s/Section: universe\//Section: /g" $DEST/Sources
for arch in $ARCHES $PORTS_ARCHES; do
zcat $BRITNEY_CACHE/$RELEASE*/*/binary-$arch/Packages.gz > $DEST/Packages_${arch}
sed -i "s/Section: universe\//Section: /g" $DEST/Packages_${arch}
done
touch $DEST/Blocks
touch "$BRITNEY_DATADIR/$SOURCE_PPA-$RELEASE/Dates"
# Create config file atomically.
CONFIG="britney.conf"
cp $CONFIG $CONFIG.bak
envsubst < "$CONFIG.bak" > "$CONFIG"
rm $CONFIG.bak
echo 'Running britney...'
$BRITNEY_LOC -v --config "$CONFIG" --series $RELEASE
echo 'Syncing output to frontend...'
rmdir output/;
rsync -da output/ ../../output/britney
echo "$0 done."
echo "Moving packages..."
egrep -v '^#' output/$RELEASE/HeidiResultDelta > candidates || echo "No candidates found.";
while read -r -a package; do
# This only acts on sources; binaries require manual cleanup
if [ ${#package[@]} = 2 ]; then
COPY="../ubuntu-archive-tools/copy-package"
REMOVE="../ubuntu-archive-tools/remove-package"
if echo ${package[0]} | egrep -q "^-"; then
PACKAGE=$(echo ${package[0]} | sed 's/-//')
echo "Demoting $PACKAGE..."
$COPY -y -b -s $RELEASE --from "ppa:$LP_TEAM/ubuntu/$DEST_PPA" --to "ppa:$LP_TEAM/ubuntu/$SOURCE_PPA" --version "${package[1]}" "$PACKAGE";
$REMOVE -y -s $RELEASE --archive "ppa:$LP_TEAM/ubuntu/$DEST_PPA" --version "${package[1]}" --removal-comment="demoted to proposed" "$PACKAGE";
else
echo "Migrating ${package[0]}..."
$COPY -y -b -s $RELEASE --from "ppa:$LP_TEAM/ubuntu/$SOURCE_PPA" --to "ppa:$LP_TEAM/ubuntu/$DEST_PPA" --version "${package[1]}" "${package[0]}";
$REMOVE -y -s $RELEASE --archive "ppa:$LP_TEAM/ubuntu/$SOURCE_PPA" --version "${package[1]}" --removal-comment="moved to release" "${package[0]}";
fi
fi
done < candidates;
rm candidates;
echo "Run the grim reaper..."
./grim-reaper $RELEASE

17
fetch-indexes-cpp/CMakeLists.txt
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cmake_minimum_required(VERSION 3.10)
project(fetch-indexes)
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED True)
find_package(CURL REQUIRED)
find_package(ZLIB REQUIRED)
find_package(YAML-CPP REQUIRED)
include_directories(${CURL_INCLUDE_DIRS})
include_directories(${ZLIB_INCLUDE_DIRS})
include_directories(${YAML_CPP_INCLUDE_DIR})
add_executable(fetch-indexes main.cpp utilities.cpp)
target_link_libraries(fetch-indexes ${CURL_LIBRARIES} ${ZLIB_LIBRARIES} yaml-cpp)

482
fetch-indexes-cpp/main.cpp
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// Copyright (C) 2024 Simon Quigley <tsimonq2@ubuntu.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <map>
#include <filesystem>
#include <thread>
#include <mutex>
#include <regex>
#include <ctime>
#include <chrono>
#include <cstdlib>
#include <cstring>
#include <cstdio>
#include <unistd.h>
#include <getopt.h>
#include <yaml-cpp/yaml.h>
#include "utilities.h"
namespace fs = std::filesystem;
// Function prototypes
void printHelp(const char* programName);
void processRelease(const std::string& release, const YAML::Node& config);
void refresh(const std::string& url, const std::string& pocket, const std::string& britneyCache, std::mutex& logMutex);
int main(int argc, char* argv[]) {
std::string configFilePath = "config.yaml";
// Command-line argument parsing
int opt;
bool showHelp = false;
static struct option long_options[] = {
{"config", required_argument, 0, 'c'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0 }
};
while (true) {
int option_index = 0;
opt = getopt_long(argc, argv, "c:h", long_options, &option_index);
if (opt == -1)
break;
switch (opt) {
case 'c':
configFilePath = optarg;
break;
case 'h':
showHelp = true;
break;
default:
// Unknown option
showHelp = true;
break;
}
}
if (showHelp) {
printHelp(argv[0]);
return 0;
}
// Load configuration from YAML file
YAML::Node config;
try {
config = YAML::LoadFile(configFilePath);
} catch (const YAML::BadFile& e) {
std::cerr << "Error: Unable to open config file: " << configFilePath << std::endl;
return 1;
} catch (const YAML::ParserException& e) {
std::cerr << "Error: Failed to parse config file: " << e.what() << std::endl;
return 1;
}
// Ensure LOG_DIR exists
std::string LOG_DIR = config["LOG_DIR"].as<std::string>();
fs::create_directories(LOG_DIR);
// Log rotation: Remove logs older than MAX_LOG_AGE_DAYS
int maxLogAgeDays = config["MAX_LOG_AGE_DAYS"].as<int>();
auto now = fs::file_time_type::clock::now(); // Use the same clock as file_time_type
for (const auto& entry : fs::directory_iterator(LOG_DIR)) {
if (entry.is_regular_file()) {
auto ftime = fs::last_write_time(entry.path());
auto age = std::chrono::duration_cast<std::chrono::hours>(now - ftime).count() / 24;
if (age > maxLogAgeDays) {
fs::remove(entry.path());
}
}
}
// Get the list of releases
std::vector<std::string> releases = config["RELEASES"].as<std::vector<std::string>>();
// Process each release
for (const auto& release : releases) {
// Log file named by current UTC time (YYYYMMDDTHH:MM:SS) and release
std::time_t now_c = std::time(nullptr);
char timestamp[20];
std::strftime(timestamp, sizeof(timestamp), "%Y%m%dT%H:%M:%S", std::gmtime(&now_c));
std::string logFileName = LOG_DIR + "/" + timestamp + "_" + release + ".log";
// Open log file
std::ofstream logFile(logFileName, std::ios::app);
if (!logFile.is_open()) {
std::cerr << "Error: Unable to open log file: " << logFileName << std::endl;
continue;
}
// Redirect stdout and stderr to log file
std::streambuf* coutBuf = std::cout.rdbuf();
std::streambuf* cerrBuf = std::cerr.rdbuf();
std::cout.rdbuf(logFile.rdbuf());
std::cerr.rdbuf(logFile.rdbuf());
// Log the start time
char startTime[20];
std::strftime(startTime, sizeof(startTime), "%Y-%m-%d %H:%M:%S", std::gmtime(&now_c));
std::cout << startTime << " - Running Britney for " << release << std::endl;
// Process the release
processRelease(release, config);
// Restore stdout and stderr
std::cout.rdbuf(coutBuf);
std::cerr.rdbuf(cerrBuf);
// Close log file
logFile.close();
}
return 0;
}
void processRelease(const std::string& RELEASE, const YAML::Node& config) {
// Extract configuration variables
std::string MAIN_ARCHIVE = config["MAIN_ARCHIVE"].as<std::string>();
std::string PORTS_ARCHIVE = config["PORTS_ARCHIVE"].as<std::string>();
std::string LP_TEAM = config["LP_TEAM"].as<std::string>();
std::string SOURCE_PPA = config["SOURCE_PPA"].as<std::string>();
std::string DEST_PPA = config["DEST_PPA"].as<std::string>();
std::string BRITNEY_CACHE = config["BRITNEY_CACHE"].as<std::string>();
std::string BRITNEY_DATADIR = config["BRITNEY_DATADIR"].as<std::string>();
std::string BRITNEY_OUTDIR = config["BRITNEY_OUTDIR"].as<std::string>();
std::string BRITNEY_HINTDIR = config["BRITNEY_HINTDIR"].as<std::string>();
std::string BRITNEY_LOC = config["BRITNEY_LOC"].as<std::string>();
std::vector<std::string> ARCHES = config["ARCHES"].as<std::vector<std::string>>();
std::vector<std::string> PORTS_ARCHES = config["PORTS_ARCHES"].as<std::vector<std::string>>();
std::string SOURCE_PPA_URL = "https://ppa.launchpadcontent.net/" + LP_TEAM + "/" + SOURCE_PPA + "/ubuntu/dists/" + RELEASE + "/main";
std::string DEST_PPA_URL = "https://ppa.launchpadcontent.net/" + LP_TEAM + "/" + DEST_PPA + "/ubuntu/dists/" + RELEASE + "/main";
// Get current timestamp
std::time_t now_c = std::time(nullptr);
char timestamp[20];
std::strftime(timestamp, sizeof(timestamp), "%Y-%m-%d_%H:%M:%S", std::localtime(&now_c));
std::string BRITNEY_TIMESTAMP(timestamp);
std::cout << "Release: " << RELEASE << std::endl;
std::cout << "Timestamp: " << BRITNEY_TIMESTAMP << std::endl;
// Execute pending-packages script
std::string pendingCmd = "./pending-packages " + RELEASE;
int pendingResult = std::system(pendingCmd.c_str());
if (pendingResult != 0) {
std::cerr << "Error: pending-packages script failed for release " << RELEASE << std::endl;
return;
}
std::cout << "Refreshing package indexes..." << std::endl;
std::vector<std::thread> threads;
std::mutex logMutex;
// Refresh package indexes
std::vector<std::string> pockets = {RELEASE, RELEASE + "-updates"};
std::vector<std::string> components = {"main", "restricted", "universe", "multiverse"};
// Loop over pockets, components, architectures to refresh package indexes
for (const auto& pocket : pockets) {
for (const auto& component : components) {
for (const auto& arch : ARCHES) {
std::string url = MAIN_ARCHIVE + pocket + "/" + component + "/binary-" + arch + "/Packages.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
for (const auto& arch : PORTS_ARCHES) {
std::string url = PORTS_ARCHIVE + pocket + "/" + component + "/binary-" + arch + "/Packages.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
std::string url = MAIN_ARCHIVE + pocket + "/" + component + "/source/Sources.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
}
// Treat the destination PPA as just another pocket
std::string pocket = RELEASE + "-ppa-proposed";
for (const auto& arch : ARCHES) {
std::string url = DEST_PPA_URL + "/binary-" + arch + "/Packages.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
for (const auto& arch : PORTS_ARCHES) {
std::string url = DEST_PPA_URL + "/binary-" + arch + "/Packages.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
{
std::string url = DEST_PPA_URL + "/source/Sources.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
// Get the source PPA
pocket = SOURCE_PPA + "-" + RELEASE;
for (const auto& arch : ARCHES) {
std::string url = SOURCE_PPA_URL + "/binary-" + arch + "/Packages.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
for (const auto& arch : PORTS_ARCHES) {
std::string url = SOURCE_PPA_URL + "/binary-" + arch + "/Packages.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
{
std::string url = SOURCE_PPA_URL + "/source/Sources.gz";
threads.emplace_back(refresh, url, pocket, BRITNEY_CACHE, std::ref(logMutex));
}
// Wait for all threads to finish
for (auto& th : threads) {
th.join();
}
// Process logs and delete them
pid_t pid = getpid();
std::string logPattern = std::to_string(pid) + "-wget-log";
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE)) {
if (p.is_regular_file()) {
std::string filename = p.path().filename().string();
if (filename.find(logPattern) != std::string::npos) {
// Output log content to stderr
std::ifstream logFile(p.path());
std::cerr << logFile.rdbuf();
logFile.close();
fs::remove(p.path());
}
}
}
std::cout << "Building britney indexes..." << std::endl;
// Create output directory
fs::create_directories(fs::path(BRITNEY_OUTDIR) / BRITNEY_TIMESTAMP);
// "Unstable" is SOURCE_PPA
std::string DEST = BRITNEY_DATADIR + RELEASE + "-proposed";
fs::create_directories(DEST);
fs::create_directories(fs::path(BRITNEY_DATADIR) / (RELEASE + "-proposed") / "state");
writeFile(fs::path(BRITNEY_DATADIR) / (RELEASE + "-proposed") / "state" / "age-policy-dates", "");
// Create symlink for Hints
fs::remove(fs::path(DEST) / "Hints");
fs::create_symlink(BRITNEY_HINTDIR, fs::path(DEST) / "Hints");
// Concatenate Sources.gz files for SOURCE_PPA
std::string sourcesContent;
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE + SOURCE_PPA + "-" + RELEASE)) {
if (p.path().filename() == "Sources.gz") {
sourcesContent += decompressGzip(p.path());
}
}
writeFile(fs::path(DEST) / "Sources", sourcesContent);
// Concatenate Packages.gz files for SOURCE_PPA
for (const auto& arch : ARCHES) {
std::string packagesContent;
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE + SOURCE_PPA + "-" + RELEASE)) {
if (p.path().filename() == "Packages.gz" && p.path().parent_path().string().find("binary-" + arch) != std::string::npos) {
packagesContent += decompressGzip(p.path());
}
}
writeFile(fs::path(DEST) / ("Packages_" + arch), packagesContent);
}
for (const auto& arch : PORTS_ARCHES) {
std::string packagesContent;
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE + SOURCE_PPA + "-" + RELEASE)) {
if (p.path().filename() == "Packages.gz" && p.path().parent_path().string().find("binary-" + arch) != std::string::npos) {
packagesContent += decompressGzip(p.path());
}
}
writeFile(fs::path(DEST) / ("Packages_" + arch), packagesContent);
}
writeFile(fs::path(DEST) / "Blocks", "");
writeFile(fs::path(DEST) / "Dates", "");
// Similar steps for "Testing"
DEST = BRITNEY_DATADIR + RELEASE;
fs::create_directories(DEST);
fs::create_directories(fs::path(BRITNEY_DATADIR) / RELEASE / "state");
writeFile(fs::path(BRITNEY_DATADIR) / RELEASE / "state" / "age-policy-dates", "");
fs::remove(fs::path(DEST) / "Hints");
fs::create_symlink(BRITNEY_HINTDIR, fs::path(DEST) / "Hints");
// Concatenate Sources.gz files for RELEASE
sourcesContent.clear();
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE)) {
if (p.path().filename() == "Sources.gz" && p.path().string().find(RELEASE) != std::string::npos) {
sourcesContent += decompressGzip(p.path());
}
}
writeFile(fs::path(DEST) / "Sources", sourcesContent);
// Replace "Section: universe/" with "Section: "
regexReplaceInFile(fs::path(DEST) / "Sources", "Section: universe/", "Section: ");
// Concatenate Packages.gz files for RELEASE
for (const auto& arch : ARCHES) {
std::string packagesContent;
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE)) {
if (p.path().filename() == "Packages.gz" && p.path().string().find(RELEASE) != std::string::npos && p.path().parent_path().string().find("binary-" + arch) != std::string::npos) {
packagesContent += decompressGzip(p.path());
}
}
fs::path packagesFilePath = fs::path(DEST) / ("Packages_" + arch);
writeFile(packagesFilePath, packagesContent);
// Replace "Section: universe/" with "Section: "
regexReplaceInFile(packagesFilePath, "Section: universe/", "Section: ");
}
for (const auto& arch : PORTS_ARCHES) {
std::string packagesContent;
for (auto& p : fs::recursive_directory_iterator(BRITNEY_CACHE)) {
if (p.path().filename() == "Packages.gz" && p.path().string().find(RELEASE) != std::string::npos && p.path().parent_path().string().find("binary-" + arch) != std::string::npos) {
packagesContent += decompressGzip(p.path());
}
}
fs::path packagesFilePath = fs::path(DEST) / ("Packages_" + arch);
writeFile(packagesFilePath, packagesContent);
// Replace "Section: universe/" with "Section: "
regexReplaceInFile(packagesFilePath, "Section: universe/", "Section: ");
}
writeFile(fs::path(DEST) / "Blocks", "");
writeFile(fs::path(BRITNEY_DATADIR) / (SOURCE_PPA + "-" + RELEASE) / "Dates", "");
// Create config file atomically
std::string configContent = readFile("britney.conf");
// Replace variables in configContent using configuration variables
configContent = std::regex_replace(configContent, std::regex("\\$\\{RELEASE\\}"), RELEASE);
configContent = std::regex_replace(configContent, std::regex("\\$\\{BRITNEY_DATADIR\\}"), BRITNEY_DATADIR);
writeFile("britney.conf", configContent);
std::cout << "Running britney..." << std::endl;
// Run britney.py
std::string britneyCmd = BRITNEY_LOC + " -v --config britney.conf --series " + RELEASE;
int britneyResult = std::system(britneyCmd.c_str());
if (britneyResult != 0) {
std::cerr << "Error: Britney execution failed for release " << RELEASE << std::endl;
return;
}
std::cout << "Syncing output to frontend..." << std::endl;
// Rsync command can be replaced with filesystem copy
fs::remove_all("output");
fs::copy("output", "../../output/britney", fs::copy_options::recursive | fs::copy_options::overwrite_existing);
std::cout << "Moving packages..." << std::endl;
// Read candidates from HeidiResultDelta
std::ifstream heidiFile("output/" + RELEASE + "/HeidiResultDelta");
if (!heidiFile.is_open()) {
std::cout << "No candidates found for release " << RELEASE << "." << std::endl;
} else {
std::ofstream candidatesFile("candidates");
std::string line;
while (std::getline(heidiFile, line)) {
if (line.empty() || line[0] == '#') continue;
candidatesFile << line << std::endl;
}
heidiFile.close();
candidatesFile.close();
// Process candidates
std::ifstream candidates("candidates");
while (std::getline(candidates, line)) {
std::istringstream iss(line);
std::vector<std::string> packageInfo;
std::string word;
while (iss >> word) {
packageInfo.push_back(word);
}
if (packageInfo.size() == 2) {
std::string COPY = "../ubuntu-archive-tools/copy-package";
std::string REMOVE = "../ubuntu-archive-tools/remove-package";
if (packageInfo[0][0] == '-') {
std::string PACKAGE = packageInfo[0].substr(1);
std::cout << "Demoting " << PACKAGE << "..." << std::endl;
std::string copyCmd = COPY + " -y -b -s " + RELEASE + " --from ppa:" + LP_TEAM + "/ubuntu/" + DEST_PPA +
" --to ppa:" + LP_TEAM + "/ubuntu/" + SOURCE_PPA + " --version " + packageInfo[1] + " " + PACKAGE;
std::string removeCmd = REMOVE + " -y -s " + RELEASE + " --archive ppa:" + LP_TEAM + "/ubuntu/" + DEST_PPA +
" --version " + packageInfo[1] + " --removal-comment=\"demoted to proposed\" " + PACKAGE;
std::system(copyCmd.c_str());
std::system(removeCmd.c_str());
} else {
std::cout << "Migrating " << packageInfo[0] << "..." << std::endl;
std::string copyCmd = COPY + " -y -b -s " + RELEASE + " --from ppa:" + LP_TEAM + "/ubuntu/" + SOURCE_PPA +
" --to ppa:" + LP_TEAM + "/ubuntu/" + DEST_PPA + " --version " + packageInfo[1] + " " + packageInfo[0];
std::string removeCmd = REMOVE + " -y -s " + RELEASE + " --archive ppa:" + LP_TEAM + "/ubuntu/" + SOURCE_PPA +
" --version " + packageInfo[1] + " --removal-comment=\"moved to release\" " + packageInfo[0];
std::system(copyCmd.c_str());
std::system(removeCmd.c_str());
}
}
}
candidates.close();
fs::remove("candidates");
}
std::cout << "Run the grim reaper..." << std::endl;
std::string grimCmd = "./grim-reaper " + RELEASE;
int grimResult = std::system(grimCmd.c_str());
if (grimResult != 0) {
std::cerr << "Error: Grim reaper execution failed for release " << RELEASE << std::endl;
return;
}
std::cout << "Done processing release " << RELEASE << "." << std::endl;
}
void printHelp(const char* programName) {
std::cout << "Usage: " << programName << " [options]\n";
std::cout << "Options:\n";
std::cout << " -c, --config <file> Specify path to config file (default: config.yaml)\n";
std::cout << " -h, --help Show this help message and exit\n";
}
// Refresh package indexes by downloading files in parallel
void refresh(const std::string& url, const std::string& pocket, const std::string& britneyCache, std::mutex& logMutex) {
// Compute directory path based on the URL
fs::path urlPath(url);
std::string lastTwoComponents = urlPath.parent_path().parent_path().filename().string() + "/" + urlPath.parent_path().filename().string();
fs::path dir = fs::path(britneyCache) / pocket / lastTwoComponents;
// Create necessary directories
fs::create_directories(dir);
// Update timestamps to prevent expiration
auto now = fs::file_time_type::clock::now(); // Use the same clock
fs::last_write_time(britneyCache, now);
fs::last_write_time(fs::path(britneyCache) / pocket, now);
fs::last_write_time(dir.parent_path(), now);
fs::last_write_time(dir, now);
// Log file path (uses process ID)
pid_t pid = getpid();
fs::path logFilePath = dir / (std::to_string(pid) + "-wget-log");
// Output file path
fs::path outputPath = dir / urlPath.filename();
// Download the file
downloadFileWithTimestamping(url, outputPath, logFilePath, logMutex);
}

132
fetch-indexes-cpp/utilities.cpp
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// Copyright (C) 2024 Simon Quigley <tsimonq2@ubuntu.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include "utilities.h"
#include <fstream>
#include <iostream>
#include <filesystem>
#include <regex>
#include <zlib.h>
#include <curl/curl.h>
#include <sys/stat.h>
namespace fs = std::filesystem;
// Function to read the entire content of a file into a string
std::string readFile(const fs::path& filePath) {
std::ifstream inFile(filePath, std::ios::binary);
if (inFile) {
return std::string((std::istreambuf_iterator<char>(inFile)),
std::istreambuf_iterator<char>());
}
return "";
}
// Function to write a string into a file
void writeFile(const fs::path& filePath, const std::string& content) {
std::ofstream outFile(filePath, std::ios::binary);
if (outFile) {
outFile << content;
}
}
// Function to perform in-place regex replace on a file
void regexReplaceInFile(const fs::path& filePath, const std::string& pattern, const std::string& replace) {
std::string content = readFile(filePath);
content = std::regex_replace(content, std::regex(pattern), replace);
writeFile(filePath, content);
}
// Function to decompress gzipped files
std::string decompressGzip(const fs::path& filePath) {
gzFile infile = gzopen(filePath.c_str(), "rb");
if (!infile) return "";
std::string decompressedData;
char buffer[8192];
int numRead = 0;
while ((numRead = gzread(infile, buffer, sizeof(buffer))) > 0) {
decompressedData.append(buffer, numRead);
}
gzclose(infile);
return decompressedData;
}
// Helper function for libcurl write callback
size_t write_data(void* ptr, size_t size, size_t nmemb, void* stream) {
FILE* out = static_cast<FILE*>(stream);
return fwrite(ptr, size, nmemb, out);
}
// Function to download a file with timestamping using libcurl
void downloadFileWithTimestamping(const std::string& url, const fs::path& outputPath,
const fs::path& logFilePath, std::mutex& logMutex) {
CURL* curl;
CURLcode res;
FILE* fp;
curl = curl_easy_init();
if (curl) {
fs::path tempFilePath = outputPath.string() + ".tmp";
fp = fopen(tempFilePath.c_str(), "wb");
if (!fp) {
std::cerr << "Failed to open file: " << tempFilePath << std::endl;
curl_easy_cleanup(curl);
return;
}
// Set curl options for downloading the file
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
// Timestamping: set If-Modified-Since header
struct stat file_info;
if (stat(outputPath.c_str(), &file_info) == 0) {
// Set the time condition to If-Modified-Since
curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
curl_easy_setopt(curl, CURLOPT_TIMEVALUE, file_info.st_mtime);
}
// Perform the file download
res = curl_easy_perform(curl);
// Get the HTTP response code
long response_code = 0;
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
fclose(fp);
curl_easy_cleanup(curl);
// Log the result and handle the downloaded file
{
std::lock_guard<std::mutex> lock(logMutex);
std::ofstream logFile(logFilePath, std::ios::app);
if (res == CURLE_OK && (response_code == 200 || response_code == 201)) {
fs::rename(tempFilePath, outputPath);
logFile << "Downloaded: " << url << std::endl;
} else if (response_code == 304) {
fs::remove(tempFilePath);
logFile << "Not Modified: " << url << std::endl;
} else {
fs::remove(tempFilePath);
logFile << "Failed to download: " << url << std::endl;
}
}
} else {
std::cerr << "Failed to initialize CURL." << std::endl;
}
}

42
fetch-indexes-cpp/utilities.h
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// Copyright (C) 2024 Simon Quigley <tsimonq2@ubuntu.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#ifndef UTILITIES_H
#define UTILITIES_H
#include <string>
#include <filesystem>
#include <mutex>
// Function to read the entire content of a file into a string
std::string readFile(const std::filesystem::path& filePath);
// Function to write a string into a file
void writeFile(const std::filesystem::path& filePath, const std::string& content);
// Function to perform in-place regex replace on a file
void regexReplaceInFile(const std::filesystem::path& filePath, const std::string& pattern, const std::string& replace);
// Function to decompress gzipped files
std::string decompressGzip(const std::filesystem::path& filePath);
// Function to download a file with timestamping using libcurl
void downloadFileWithTimestamping(const std::string& url, const std::filesystem::path& outputPath,
const std::filesystem::path& logFilePath, std::mutex& logMutex);
// Helper function for libcurl write callback
size_t write_data(void* ptr, size_t size, size_t nmemb, void* stream);
#endif // UTILITIES_H

8
pull-and-compile-tooling
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#!/bin/bash
git pull
(cd fetch-indexes-cpp &&
rm -rf build; mkdir build && (cd build &&
cmake .. && make -j$(nproc)) &&
mv build/fetch-indexes ../ && rm -rf build)

37
run-britney
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@ -1,37 +0,0 @@
#!/bin/bash
#
# Copyright (C) 2024 Simon Quigley <tsimonq2@ubuntu.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# Configuration
LOG_DIR="/srv/lubuntu-ci/output/logs/britney"
SCRIPT_PATH="/srv/lubuntu-ci/repos/ci-tools/fetch-indexes"
# Ensure the log directory exists
mkdir -p $LOG_DIR
# Log rotation: Remove logs older than MAX_LOG_AGE
find $LOG_DIR -type f -mtime +1 -exec rm -f {} \;
# Execute the fetch-indexes script for each release and log output
for release in plucky oracular noble; do
export RELEASE="$release"
# Log file named by current UTC time (HH-MM-SS)
LOG_FILE="$LOG_DIR/$(date -u +"%Y%m%dT%H:%M:%S")_${release}.log"
echo "$(date -u +"%Y-%m-%d %H:%M:%S") - Running Britney for $RELEASE" >> "$LOG_FILE"
"$SCRIPT_PATH" >> "$LOG_FILE" 2>&1
done

2
systemd/britney.service
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@ -8,4 +8,4 @@ Type=simple
User=lugito
Group=lugito
WorkingDirectory=/srv/lubuntu-ci/repos/ci-tools
ExecStart=/srv/lubuntu-ci/repos/ci-tools/run-britney
ExecStart=/srv/lubuntu-ci/repos/ci-tools/fetch-indexes -c /srv/lubuntu-ci/repos/ci-tools/fetch-indexes.yaml

11
systemd/pull-tooling.service
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[Unit]
Description=Pull and compile tooling
Wants=pull-tooling.timer
After=network.target
[Service]
Type=simple
User=lugito
Group=lugito
WorkingDirectory=/srv/lubuntu-ci/repos/ci-tools/
ExecStart=/srv/lubuntu-ci/repos/ci-tools/pull-and-compile-tooling

10
systemd/pull-tooling.timer
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[Unit]
Description=Pull and compile tooling timer
[Timer]
OnBootSec=3min
OnUnitActiveSec=60min
Persistent=true
[Install]
WantedBy=timers.target
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