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* CUPS: fix printing on a Ricoh Aficio MP C4500 PXL printer (and

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probably lots of others).  The $PATH used to invoke the filter
  didn't contain Ghostscript and Perl, so it silently fails.  (A nice
  property of CUPS is that it will just silently discard the job when
  that happens, so you need to set LogLevel to "debug" to see this.)
  Fortunately, CUPS now has a "SetEnv" option to set $PATH explicitly.

  Also, remove config.system.path from the PATH of CUPS' Upstart job.
  It seems to serve no purpose.

svn path=/nixos/trunk/; revision=34244
This commit is contained in:
Eelco Dolstra 2012-05-25 15:51:33 +00:00
parent f81eb12d41
commit 9b014c471a
1 changed files with 11 additions and 17 deletions
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28
modules/services/printing/cupsd.nix
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@ -10,32 +10,24 @@ let
cfg = config.services.printing;
additionalBackends = pkgs.stdenv.mkDerivation {
name = "additional-cups-backends";
builder = pkgs.writeScript "additional-backends-builder.sh" ''
PATH=${pkgs.coreutils}/bin
mkdir -pv $out
additionalBackends = pkgs.runCommand "additional-cups-backends" { }
''
mkdir -p $out
if [ ! -e ${pkgs.cups}/lib/cups/backend/smb ]; then
mkdir -pv $out/lib/cups/backend
mkdir -p $out/lib/cups/backend
ln -sv ${pkgs.samba}/bin/smbspool $out/lib/cups/backend/smb
fi
# Provide support for printing via HTTPS.
if [ ! -e ${pkgs.cups}/lib/cups/backend/https ]; then
mkdir -pv $out/lib/cups/backend
mkdir -p $out/lib/cups/backend
ln -sv ${pkgs.cups}/lib/cups/backend/ipp $out/lib/cups/backend/https
fi
# Awful hack to get programs needed by some PPDs in CUPS'
# hard-coded $PATH.
mkdir -p $out/lib/cups/filter
ln -s ${pkgs.coreutils}/bin/date ${pkgs.coreutils}/bin/cat ${pkgs.gnused}/bin/sed $out/lib/cups/filter/
# Import filter configuration from Ghostscript.
mkdir -p $out/share/cups/mime/
ln -v -s "${pkgs.ghostscript}/etc/cups/"* $out/share/cups/mime/
'';
};
# Here we can enable additional backends, filters, etc. that are not
# part of CUPS itself, e.g. the SMB backend is part of Samba. Since
@ -45,7 +37,7 @@ let
bindir = pkgs.buildEnv {
name = "cups-progs";
paths = cfg.drivers;
pathsToLink = [ "/lib/cups" "/share/cups" ];
pathsToLink = [ "/lib/cups" "/share/cups" "/bin" ];
postBuild = cfg.bindirCmds;
};
@ -131,8 +123,7 @@ in
startOn = "started network-interfaces";
stopOn = "stopping network-interfaces";
# !!! Why is config.system.path in here?
path = [ cups config.system.path ];
path = [ cups ];
preStart =
''
@ -146,7 +137,8 @@ in
exec = "cupsd -c ${pkgs.writeText "cupsd.conf" cfg.cupsdConf} -F";
};
services.printing.drivers = [ pkgs.cups pkgs.cups_pdf_filter pkgs.ghostscript additionalBackends ];
services.printing.drivers =
[ pkgs.cups pkgs.cups_pdf_filter pkgs.ghostscript additionalBackends pkgs.perl pkgs.coreutils pkgs.gnused ];
services.printing.cupsdConf =
''
@ -165,6 +157,8 @@ in
ServerBin ${bindir}/lib/cups
DataDir ${bindir}/share/cups
SetEnv PATH ${bindir}/lib/cups/filter:${bindir}/bin:${bindir}/sbin
AccessLog ${logDir}/access_log
ErrorLog ${logDir}/error_log
PageLog ${logDir}/page_log