fcps.eb fails to find source for GNU projects like gsl-2.7

[btraven00]

ERROR: Installation of GSL-2.7-GCC-12.3.0.eb failed: "Couldn't find file gsl-2.7.tar.gz anywhere, and downloading it didn't work either... Paths attempted (in order): /home/easybuild03/easyb
uild-easyconfigs/easybuild/easyconfigs/g/GSL/g/GSL/gsl-2.7.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/g/GSL/GSL/gsl-2.7.tar.gz, /home/easybuild03/easybuild-easycon
figs/easybuild/easyconfigs/g/GSL/gsl-2.7.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/g/GSL/gsl-2.7.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easycon
figs/GSL/gsl-2.7.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/gsl-2.7.tar.gz, /home/easybuild03/easybuild-env/easybuild/easyconfigs/g/GSL/gsl-2.7.tar.gz, /home/easyb
uild03/easybuild-env/easybuild/easyconfigs/GSL/gsl-2.7.tar.gz, /home/easybuild03/easybuild-env/easybuild/easyconfigs/gsl-2.7.tar.gz, /home/easybuild03/.local/easybuild/sources/g/GSL/gsl-2.7.
tar.gz, /home/easybuild03/.local/easybuild/sources/GSL/gsl-2.7.tar.gz, /home/easybuild03/.local/easybuild/sources/gsl-2.7.tar.gz, https://ftpmirror.gnu.org/gnu/gsl/gsl-2.7.tar.gz, https://sources.easybuild.io/g/GSL/gsl-2.7.tar.gz "  ```

curl https://ftpmirror.gnu.org/gnu/gsl/gsl-2.7.tar.gz times out
just replacing it with ftp.gnu.org should work.

[btraven00]

this is an infrastructure problem on the GNU project side. https://globalping.io/?measurement=uPn5D0CiJSTcqFqq

I trust this will be resolved shortly. In the meantime, one can patch the local variable that defines GNU_SOURCE in the .eb:

@@ -11,6 +11,7 @@ description = """The GNU Scientific Library (GSL) is a numerical library for C a
 toolchain = {'name': 'GCC', 'version': '12.3.0'}
 toolchainopts = {'unroll': True, 'pic': True}
 
+GNU_SOURCE = 'https://ftp.gnu.org/gnu/gsl'
 source_urls = [GNU_SOURCE]
 sources = [SOURCELOWER_TAR_GZ]
 checksums = ['efbbf3785da0e53038be7907500628b466152dbc3c173a87de1b5eba2e23602b']

If the problem persists, it'll be useful to report upstream.

[btraven00]

it obviously affects other GNU projects

ERROR: Installation of gzip-1.12-GCCcore-12.3.0.eb failed: "Couldn't find file gzip-1.12.tar.gz anywhere, and downloading it didn't work either... Paths attempted (in order): /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/g/gzip/g/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/g/gzip/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/g/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/g/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-easyconfigs/easybuild/easyconfigs/gzip-1.12.tar.gz, /home/easybuild03/easybuild-env/easybuild/easyconfigs/g/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-env/easybuild/easyconfigs/gzip/gzip-1.12.tar.gz, /home/easybuild03/easybuild-env/easybuild/easyconfigs/gzip-1.12.tar.gz, /home/easybuild03/.local/easybuild/sources/g/gzip/gzip-1.12.tar.gz, /home/easybuild03/.local/easybuild/sources/gzip/gzip-1.12.tar.gz, /home/easybuild03/.local/easybuild/sources/gzip-1.12.tar.gz, https://ftpmirror.gnu.org/gnu/gzip/gzip-1.12.tar.gz, https://sources.easybuild.io/g/gzip/gzip-1.12.tar.gz "

[btraven00]

https://github.com/easybuilders/easybuild-framework/blob/develop/easybuild/framework/easyconfig/templates.py#L143

this is where GNU_SOURCE gets defined, for the easyconfigs that use th templates. For a short time patch, it's enough to switch the affected .eb files to GNU_FTP_SOURCE. If I was to contribute upstream, I'd be to perhaps reconsider the single source and attempt a retry loop between mirrors.