[bug] tools.os_info.with_yum does not detect AlmaLinux (CentOS replacement)

[daravi]

AlmaLinux is the CentOS successor. Similar to CentOS it uses yum or dnf. However, with_yum in system_requirement fails:

e.g.

opengl/system: WARN: Don't know how to install OpenGL for your distro.
opengl/system: ERROR: while executing system_requirements(): local variable 'packages' referenced before assignment
ERROR: Error in system requirements

I am not sure if this is a bug in Conan or AlmaLinux. I can do further debugging as requested.

Environment Details (include every applicable attribute)

• Operating System+version: AlmaLinux 8.4 (Electric Cheetah)
• Compiler+version: LLVM 10.0.1
• Conan version: 1.38.0
• Python version: 3.9.6

[memsharded]

Hi @daravi

yes, please, can you verify you have the latest revision of opengl/system installed? I see:

def system_requirements(self):
        packages = []
        if tools.os_info.is_linux and self.settings.os == "Linux":
            if tools.os_info.with_yum:
                if tools.os_info.linux_distro == "fedora" and tools.os_info.os_version >= "32":
                    packages = ["libglvnd-devel"]
                else:
                    packages = ["mesa-libGL-devel"]
            elif tools.os_info.with_apt:
                ubuntu_20_or_later = tools.os_info.linux_distro == "ubuntu" and tools.os_info.os_version >= "20"
                debian_11_or_later = tools.os_info.linux_distro == "debian" and tools.os_info.os_version >= "11"
                pop_os_20_or_later = tools.os_info.linux_distro == "pop" and tools.os_info.os_version >= "20"
                if ubuntu_20_or_later or debian_11_or_later or pop_os_20_or_later:
                    packages = ["libgl-dev"]
                else:
                    packages = ["libgl1-mesa-dev"]
            elif tools.os_info.with_pacman:
                packages = ["libglvnd"]
            elif tools.os_info.with_zypper:
                packages = ["Mesa-libGL-devel"]
            else:
                self.output.warn("Don't know how to install OpenGL for your distro.")
        elif tools.os_info.is_freebsd and self.settings.os == "FreeBSD":
            packages = ["libglvnd"]
        if packages:
            package_tool = tools.SystemPackageTool(conanfile=self, default_mode='verify')
            for p in packages:
                package_tool.install(update=True, packages=p)

So it shouldn't fail with the above message (it could fail not installing anything, of course).

Then, it could be failing because:

    @property
    def with_yum(self):
        return self.is_linux and self.linux_distro in ("pidora", "fedora", "scientific", "centos",
                                                       "redhat", "rhel", "xenserver", "amazon",
                                                       "oracle", "amzn")

It should be great to see what distro.id() is returning for your distro, and also if an update (like suggested in #9452) could help.

[daravi]

@memsharded Thanks! My distro.id() returns "almalinux". Should I make a PR for adding that?

[memsharded]

@memsharded Thanks! My distro.id() returns "almalinux". Should I make a PR for adding that?

Yes, please, that would be great.