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Sometimes two configurations might have the same types for their field values, but the values might be serialized in two completely different ways (e.g. because the two programs have different configuration languages). An example of this would be the ‘serialize-boolean’ procedure in (gnu services mail) and (gnu services getmail). They both serialize a boolean value, but because the Dovecot’s configuration language has a different syntax to the configuration language for Getmail, two different procedures have to be defined. One way to workaround this would be to specify custom serializers for many fields in order to separate the serialization of the values that have the same type but serialize in different ways. This could get very tedious, especially if there are many configurations in the same module. Another way would be to move one of the configurations to its own module, like what was done with (gnu services getmail). However, this would mean that there would be multiple modules containing configurations for related programs, e.g. we have (gnu services mail) and (gnu services getmail), it doesn’t make much sense to keep the Getmail configuration in its own module. This patch will allow one to write something like this: (define-configuration foo-configuration (bar (string "bob") "Option bar.") (prefix bar-)) and the value of the ‘bar’ field would be serialized using a procedure named ‘bar-serialize-string’ instead of just ‘serialize-string’. * gnu/services/configuration.scm (define-maybe-helper): Accept ‘prefix’ argument for using serializer with custom prefix. (define-maybe): Pattern match on ‘prefix’ literal. (define-configuration-helper): Accept ‘prefix’ argument for using serializer with custom prefix. (define-configuration): Pattern match on ‘prefix’ literal. * tests/services/configuration.scm ("serialize-configuration with prefix"): New test. Signed-off-by: Ludovic Courtès <ludo@gnu.org> |
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admin.scm | ||
audio.scm | ||
auditd.scm | ||
authentication.scm | ||
avahi.scm | ||
base.scm | ||
certbot.scm | ||
cgit.scm | ||
ci.scm | ||
configuration.scm | ||
cuirass.scm | ||
cups.scm | ||
databases.scm | ||
dbus.scm | ||
desktop.scm | ||
dict.scm | ||
dns.scm | ||
docker.scm | ||
file-sharing.scm | ||
games.scm | ||
ganeti.scm | ||
getmail.scm | ||
guix.scm | ||
herd.scm | ||
hurd.scm | ||
kerberos.scm | ||
linux.scm | ||
lirc.scm | ||
mail.scm | ||
mcron.scm | ||
messaging.scm | ||
monitoring.scm | ||
networking.scm | ||
nfs.scm | ||
nix.scm | ||
pam-mount.scm | ||
pm.scm | ||
rsync.scm | ||
science.scm | ||
sddm.scm | ||
security-token.scm | ||
shepherd.scm | ||
sound.scm | ||
spice.scm | ||
ssh.scm | ||
syncthing.scm | ||
sysctl.scm | ||
telephony.scm | ||
version-control.scm | ||
virtualization.scm | ||
vpn.scm | ||
web.scm | ||
xorg.scm |