pager: init at 1.0.0

krebs/5pkgs/haskell/pager.nix

@@ -0,0 +1,23 @@
+{ mkDerivation, base, blessings, bytestring, containers
+, data-default, hack, lib, optparse-applicative, probability
+, scanner, speculate, split, terminal-size, text, unix, X11
+, fetchgit
+}:
+mkDerivation {
+  pname = "pager";
+  version = "1.0.0";
+  src = fetchgit {
+    url = "https://cgit.krebsco.de/pager";
+    sha256 = "1kqd27faxinkwpxancyk0xl6n7ljlc8iqhnnq85l76bk4qi9b45i";
+    rev = "f4cdf79bd4a75e9eafe68b9a908f4cc68682b7ef";
+    fetchSubmodules = true;
+  };
+  isLibrary = false;
+  isExecutable = true;
+  executableHaskellDepends = [
+    base blessings bytestring containers data-default hack
+    optparse-applicative probability scanner speculate split
+    terminal-size text unix X11
+  ];
+  license = lib.licenses.mit;
+}

krebs/5pkgs/simple/pager.nix

@@ -0,0 +1,34 @@
+{ pkgs }:
+
+pkgs.writeDashBin "pager" ''
+  # usage: pager {view,shift,shiftview}
+  #
+  # Environment variables
+  #
+  #   PAGER_NAME (default: Pager)
+  #     The environment variables specifies the application name under which
+  #     resources are to be obtained.  PAGER_NAME should not contain “.” or “*”
+  #     characters.
+  #
+  set -efu
+
+  pidfile=$XDG_RUNTIME_DIR/pager.lock
+  name=''${PAGER_NAME-Pager}
+
+  if test -e "$pidfile" &&
+     ${pkgs.procps}/bin/pgrep --pidfile="$pidfile" >/dev/null
+  then
+    ${pkgs.procps}/bin/pkill --pidfile="$pidfile"
+    ${pkgs.coreutils}/bin/rm "$pidfile"
+    exit
+  fi
+
+  echo $$ > "$pidfile"
+
+  exec ${pkgs.xterm}/bin/xterm \
+      -name "$name" \
+      -ti vt340 \
+      -xrm 'Pager*geometry: 32x10' \
+      -xrm 'Pager*internalBorder: 2' \
+      -e ${pkgs.haskellPackages.pager}/bin/pager "$@"
+''