與opkg的包同步

Question

我們使用運行Angstrom Linux的BeagleBone Black和opkg包管理器爲我們的一些系統供電。我們需要確保我們對opkg軟件包的特定版本有一致且可靠的訪問。我已經建立了一個內部opkg資料庫。有什麼方法可以在儲存庫之間同步軟件包嗎？例如我想從公共/不是總是可訪問的存儲庫複製特定的軟件包到我們的內部存儲庫，以獲得快速和可靠的訪問。

Answer 1

在與各種軟件包等混搭後，我找到了一種使用Ubuntu系統克隆（部分）存儲庫的方法。下面是我所採取的步驟：

# Install apache 
sudo apt-get install apache2 

# Install git 
sudo apt-get install git 

# Download the opkg-utils from the Yocto Project 
git clone http://git.yoctoproject.org/git/opkg-utils 

# Build the opkg-utils 
cd opkg-utils && make; cd - 

# Move them to a common directory 
mv opkg-utils /usr/local/share\ 

# Add them to my path 
echo "PATH=\"\$PATH:/usr/local/share/opkg-utils\"" >> /etc/environment 

# Update my environment 
source /etc/environment 

# Create the structure of my repository 
mkdir -p /var/www/repositories/opkg/beaglebone 

# Create an index for the packages 
opkg-make-index -l Packages.filelist -p Packages /var/www/repositories/opkg/beaglebone 
cd /var/www/repositories/opkg/beaglebone 
gzip -c Packages > Packages.gz 

在我的客戶BeagleBone黑人，設置訪問這個資源庫：

echo "src/gz reponame http://myserver/repositories/opkg/beaglebone" > /etc/opkg/rms-feed.conf 
chmod 666 /etc/opkg/reponame-feed.conf 
opkg update 

在我開發的機器，任何時候我需要備份軟件包：

#!/bin/bash 

############################################################################### 
# 
# bbb_clone_package_to_internal_repo.sh 
# 
# Description: 
# Clones an ipkg/opkg package to the internal repository server so that it can be deployed 
# to BeagleBone Black clients on demand. This is so that we can have backups in 
# the event that a public server becomes temporarily or permanently 
# inaccessible. 
# 
# Pre-conditions: 
# 1) The given package file must exist at the path specified. 
# 
# Post-conditions: 
# 1) The given package file will be sent to the internal repository server. 
# 2) The opkg repository indexes will all be updated 
# 
# Parameters: 
# -p <file path.opk> : The package to be cloned 
# 
############################################################################### 

PACKAGE_FILE_PATH="" 
SERVER="myserver" 

ERR_INVALID_PACKAGE_FILE_NAME=1 
ERR_PACKAGE_FILE_NOT_ACCESSIBLE=2 
ERR_FAILED_TO_COPY_PACKAGE_TO_SERVER=3 
ERR_FAILED_TO_DEPLOY_PACKAGE_ON_SERVER=4 

usage() 
{ 
cat << EOF 
usage: $0 [options] 

This script copies a remote ipkg/opkg file to the $SERVER server for subsequent 
deployment to BeagleBone Black boards. 

OPTIONS: 
    -p <file path.[io]pk> The package file to be deployed 

    -h,?     Show this message 

EOF 
} 

while getopts 「p:h?」 OPTION 
do 
    case $OPTION in 
    p) 
     PACKAGE_FILE_PATH="$OPTARG" 
     ;; 
    h) 
     usage 
     exit 
     ;; 
    ?) 
     usage 
     exit 
     ;; 
    esac 
done 

if [[ -z "$PACKAGE_FILE_PATH" || ! ("$PACKAGE_FILE_PATH" =~ \.[io]pk$) ]]; then 
    echo "The package file must not be blank and must have an .ipk or .opk suffix" 
    exit $ERR_INVALID_PACKAGE_FILE_NAME 
fi 

# Retrieve the package 
wget -q "$PACKAGE_FILE_PATH" 
RESULT="$?" 
if [[ $RESULT -ne 0 ]]; then 
    echo "Failed to retrieve file $PACKAGE_FILE_PATH with result $RESULT" 
    exit $ERR_PACKAGE_FILE_NOT_ACCESSIBLE 
fi 

# Deploy the package to myserver 

PACKAGE_FILE_NAME="$(basename $PACKAGE_FILE_PATH)" 
REPOSITORY_ROOT="/var/www/repositories/opkg/beaglebone" 
scp "$PACKAGE_FILE_NAME" root@$SERVER:$REPOSITORY_ROOT 
RESULT="$?" 
if [[ $RESULT -ne 0 ]]; then 

    echo "Failed to copy file $PACKAGE_FILE_NAME to server with result $RESULT" 
    exit $ERR_FAILED_TO_COPY_PACKAGE_TO_SERVER 
fi 

ssh root@$SERVER "chmod 644 $REPOSITORY_ROOT/$PACKAGE_FILE_NAME; opkg-make-index -l $REPOSITORY_ROOT/Packages.filelist -p $REPOSITORY_ROOT/Packages -r $REPOSITORY_ROOT/Packages $REPOSITORY_ROOT && gzip -c $REPOSITORY_ROOT/Packages > $REPOSITORY_ROOT/Packages.gz" 
RESULT="$?" 
if [[ $RESULT -ne 0 ]]; then 

    echo "Failed to deploy file $PACKAGE_FILE_NAME in repository with result $RESULT" 
    exit $ERR_FAILED_TO_DEPLOY_PACKAGE_ON_SERVER 
fi 

exit 0