Perl keeps track of online orders
Installation
The script needs the Sysadm::Install, Cache::FileCache, DateTime, and DateTime::Format::Strptime modules from CPAN, which are best installed by way of a CPAN shell to resolve dependencies automatically. Alternatively, you can use your Linux package manager if its repository has all of the required modules on hand. Their names might be slightly different in this case, though: libsysadm-install-perl, for example, is Debian's idea of Sysadm::Install.
Before you start, you will need to set up an empty server-side repository manually with the use of git init (Figure 2). Perl modules are not required on the hosted machine; however, you do need the git program, but it is part of most of today's Linux systems anyway.
Figure 7 shows how the first client initializes its local repository, uses shop buy to enter a couple of purchases, runs shop list to query the local database, and ultimately transfers data to the server with shop push. The shop commands do not produce any output if they run successfully.
The second client then uses shop clone to create a local clone of the server repository, as shown in Figure 8. That client also makes a couple of purchases and tags the iPod Nano transaction with Amazon as complete. It then issues a shop push to push the local changes to the server.
The same procedure applies to all further clients; again, they first clone the server repository, make some changes to the local repository, push the new data to the server, and receive the latest updates from the other clients via a server pull. The feast of orders can go on and on, and thankfully, Git will notice immediately any deliveries that fail to reach their destination because of mail problems or supplier sloppiness.
Infos
- Listings for this article: http://www.linux-magazine.com/resources/article_code
- Swicegood, Travis. Pragmatic Version Control Using Git. Pragmatic Bookshelf, 2008
« Previous 1 2 3
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
Canonical Bumps LTS Support to 12 years
If you're worried that your Ubuntu LTS release won't be supported long enough to last, Canonical has a surprise for you in the form of 12 years of security coverage.
-
Fedora 40 Beta Released Soon
With the official release of Fedora 40 coming in April, it's almost time to download the beta and see what's new.
-
New Pentesting Distribution to Compete with Kali Linux
SnoopGod is now available for your testing needs
-
Juno Computers Launches Another Linux Laptop
If you're looking for a powerhouse laptop that runs Ubuntu, the Juno Computers Neptune 17 v6 should be on your radar.
-
ZorinOS 17.1 Released, Includes Improved Windows App Support
If you need or desire to run Windows applications on Linux, there's one distribution intent on making that easier for you and its new release further improves that feature.
-
Linux Market Share Surpasses 4% for the First Time
Look out Windows and macOS, Linux is on the rise and has even topped ChromeOS to become the fourth most widely used OS around the globe.
-
KDE’s Plasma 6 Officially Available
KDE’s Plasma 6.0 "Megarelease" has happened, and it's brimming with new features, polish, and performance.
-
Latest Version of Tails Unleashed
Tails 6.0 is based on Debian 12 and includes GNOME 43.
-
KDE Announces New Slimbook V with Plenty of Power and KDE’s Plasma 6
If you're a fan of KDE Plasma, you'll be thrilled to hear they've announced a new Slimbook with an AMD CPU and the latest version of KDE Plasma desktop.
-
Monthly Sponsorship Includes Early Access to elementary OS 8
If you want to get a glimpse of what's in the pipeline for elementary OS 8, just set up a monthly sponsorship to help fund its continued existence.