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nixpkgs/nixos/modules/services/networking/hylafax/spool.sh
Yarny0 4415846d5c nixos/hylafax: use runtimeShell where possible
According to
https://github.com/NixOS/nixpkgs/pull/84556
this effort helps with cross-compilation.

This commit also renames a substituted variable `hylafax`
to `hylafaxplus` to permit substitution with `inherit`.
2021-05-14 05:42:18 +02:00

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#! @runtimeShell@ -e
# The following lines create/update the HylaFAX spool directory:
# Subdirectories/files with persistent data are kept,
# other directories/files are removed/recreated,
# mostly from the template spool
# directory in the HylaFAX package.
# This block explains how the spool area is
# derived from the spool template in the HylaFAX package:
#
# + capital letter: directory; file otherwise
# + P/p: persistent directory
# + F/f: directory with symlinks per entry
# + T/t: temporary data
# + S/s: single symlink into package
# |
# | + u: change ownership to uucp:uucp
# | + U: ..also change access mode to user-only
# | |
# archive P U
# bin S
# client T u (client connection info)
# config S
# COPYRIGHT s
# dev T u (maybe some FIFOs)
# docq P U
# doneq P U
# etc F contains customized config files!
# etc/hosts.hfaxd f
# etc/xferfaxlog f
# info P u (database of called devices)
# log P u (communication logs)
# pollq P U
# recvq P u
# sendq P U
# status T u (modem status info files)
# tmp T U
shopt -s dotglob # if bash sees "*", it also includes dot files
lnsym () { ln --symbol "$@" ; }
lnsymfrc () { ln --symbolic --force "$@" ; }
cprd () { cp --remove-destination "$@" ; }
update () { install --owner=@faxuser@ --group=@faxgroup@ "$@" ; }
## create/update spooling area
update --mode=0750 -d "@spoolAreaPath@"
cd "@spoolAreaPath@"
persist=(archive docq doneq info log pollq recvq sendq)
# remove entries that don't belong here
touch dummy # ensure "*" resolves to something
for k in *
do
keep=0
for j in "${persist[@]}" xferfaxlog clientlog faxcron.lastrun
do
if test "$k" == "$j"
then
keep=1
break
fi
done
if test "$keep" == "0"
then
rm --recursive "$k"
fi
done
# create persistent data directories (unless they exist already)
update --mode=0700 -d "${persist[@]}"
chmod 0755 info log recvq
# create ``xferfaxlog``, ``faxcron.lastrun``, ``clientlog``
touch clientlog faxcron.lastrun xferfaxlog
chown @faxuser@:@faxgroup@ clientlog faxcron.lastrun xferfaxlog
# create symlinks for frozen directories/files
lnsym --target-directory=. "@hylafaxplus@"/spool/{COPYRIGHT,bin,config}
# create empty temporary directories
update --mode=0700 -d client dev status
update -d tmp
## create and fill etc
install -d "@spoolAreaPath@/etc"
cd "@spoolAreaPath@/etc"
# create symlinks to all files in template's etc
lnsym --target-directory=. "@hylafaxplus@/spool/etc"/*
# set LOCKDIR in setup.cache
sed --regexp-extended 's|^(UUCP_LOCKDIR=).*$|\1'"'@lockPath@'|g" --in-place setup.cache
# etc/{xferfaxlog,lastrun} are stored in the spool root
lnsymfrc --target-directory=. ../xferfaxlog
lnsymfrc --no-target-directory ../faxcron.lastrun lastrun
# etc/hosts.hfaxd is provided by the NixOS configuration
lnsymfrc --no-target-directory "@userAccessFile@" hosts.hfaxd
# etc/config and etc/config.${DEVID} must be copied:
# hfaxd reads these file after locking itself up in a chroot
cprd --no-target-directory "@globalConfigPath@" config
cprd --target-directory=. "@modemConfigPath@"/*