I'm not doing much with Ansible right now, but when I was, I found that the pacman module could install local packages (ie the -U) flag, which greatly reduced the need for a custom AUR module. You can add a few commands to build the package if it doesn't exist and then use that module instead of rolling your own, which is what I did.
On Tuesday, February 17, 2015 at 6:51:57 AM UTC-8, Pierre Masci wrote: > > Hey there, any news on this? I'm looking into aura > <https://github.com/aurapm/aura> right now. It would be good if an > Ansible module was created (In the meantime, I will try command: aura...) > > > On Wednesday, 16 July 2014 02:18:02 UTC+1, tummyc...@gmail.com wrote: >> >> Thanks for the suggestions, Michael. I've been thinking about the problem >> some more, and I think the most sound solution to bring all the logic >> together is to write an Ansible module and throw it in with any roles that >> require AUR package installation. I'm going to have a closer look at >> Ansible's pacman module to get an idea of where to start, but in case >> anyone else is thinking about this problem, I'll share my thoughts so far. >> Feel free to point out any holes or logical inconsistencies in my plan. >> >> 1. tell the module where the PKGBUILD is on the target system. >> Presumably it would be placed there by the unarchive or copy modules. >> 2. parse PKGBUILD for crucial variables (package name, epoch, rel, >> version). Luckily a PKGBUILD is a bash script, and whitespace is >> forbidden >> in those variables, so simple grep/regex is sufficient >> 3. pacman -Q packagename to determine if the package is already >> installed and, if so, what version it is. If it's not installed then we >> already know it has to be installed, otherwise we compare versions >> between >> the PKGBUILD and the installed version to see which one is newer. (pacman >> versions are epoch:version-rel syntax, similar to rpm and compared the >> same >> way) Technically it makes more sense to build the package and then use a >> standard arch linux script to query the tarball's version, but we're >> trying >> to avoid building the package until it's clearly necessary. If the >> installed version is up to date then we can stop here. >> 4. assuming the package has to be installed (either it's not >> installed on the target, or our PKGBUILD is newer), we have to get a >> pkg.tar.xz for it. We can assemble the name of the package's tarball from >> the PKGBUILD variables (I think it's >> packagename-epoch:ver-rel-architecture.pkg.tar.xz but I can't remember >> for >> sure) and check if that file already exists. If it does then we'll assume >> it's the package tarball. Skip to step 5. (More on this later) >> 5. no tarball found? Guess we have to build it. makepkg -cs --asroot >> --noconfirm in the PKGBUILD directory. -c to clean sources and -s to >> install makedeps before building (I think we need to supply --noconfirm >> with -s but can't remember). This is the most time consuming step so >> obviously we're hoping we don't have to do this, but one way or another >> this will put the tarball on our system. >> 6. pacman -U --noconfirm on the tarball to install it. If we can't >> find the tarball at this point then we assume it was a build failure. If >> the installation fails then the tarball must have been broken for some >> reason, install failure. If everything connects then the package has been >> successfully installed. Work complete! >> >> Pros of this approach: >> >> - Don't have to build the package on the target. We can build it >> somewhere else and then copy the tarball onto the target, and it'll just >> use it as is. Huge savings for low-RAM ARM systems (build yourself with >> distcc cross compilation and then just drop the tarball on the Ansible >> slave). >> - Don't have to leave the PKGBUILD on the system in a special >> directory. One of my earlier ideas was to copy your PKGBUILD to the same >> directory every time you run the playbook. If the copy action is skipped, >> you know that the PKGBUILD is unchanged, so no rebuild is required. But >> that requires a particular directory to store the PKGBUILD and other >> build >> artifacts, which is not needed for this system. (Bonus: you can still >> implement that behavior with the method I've described. Use unarchive or >> copy to move the PKGBUILD to the target, and if the action was skipped, >> then skip the AUR module as well.) >> - No rebuild for packages that are already up to date! This was the >> #1 requirement of my plan. >> >> Anyway I will see what I can do to implement this behavior in the near >> future. Long term goal would be to get this merged into the pacman module, >> but let's start small. >> >> >> On Friday, July 11, 2014 6:32:44 PM UTC-4, Michael DeHaan wrote: >>> >>> For your first bullet point, consider running a command to see if >>> "whatever" is installed/ready, using facts, or shell+register. >>> >>> Then use "group_by" to select the machines that don't have that criteria >>> set that one way. >>> >>> You can then skip configuration on those systems where things are >>> already done. >>> >>> >>> >>> >>> On Thu, Jul 10, 2014 at 11:27 PM, <tummyc...@gmail.com> wrote: >>> >>>> As the title says, I'm wondering if anyone has experience managing AUR >>>> packages with Ansible. I'm personally interested in nginx-passenger, but >>>> the question could really apply to any AUR package. Unlike official >>>> packages, AUR packages have to be built by the user, which introduces a >>>> slew of problems: >>>> >>>> - knowing when to build the package. I'd say it's pretty much a given >>>> that the package has to be built on the target system. However, I'm >>>> provisioning ARM single-board computers with Ansible, and compiling nginx >>>> on a system with a 1GHz processor and 1GB of memory is a painful >>>> experience. I don't want to do it any more often than necessary. >>>> - knowing whether or not the package is installed, and whether or not >>>> the installed version is up to date. The existing pacman module in Ansible >>>> (thumbs up for actually having a module, by the way. as an Arch user I was >>>> glad to see it) can query if a package is installed via state=present, but >>>> if the package isn't installed then it will obviously try to install it. >>>> That will fail because AUR packages aren't hosted on official repositories. >>>> >>>> Any thoughts or suggestions? One thing I just thought of, while writing >>>> this, was to set up yaourt on the target system, since it would seamlessly >>>> integrate AUR installation, but I have literally zero experience with >>>> yaourt. Plus this kind of introduces a chicken-and-egg problem - to >>>> install >>>> one AUR package, I first have to install another AUR package, which goes >>>> right back to the original issue. >>>> >>>> I do speak a little python, so I'm not averse to submitting a PR for >>>> this issue, if someone has a good idea for how to implement it. 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