From d4a25befed94859785b08acc58dc046c0246948d Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Mon, 7 Sep 2015 19:06:23 +0200
Subject: show-generation: Support for showing generation of custom profile

---
 nix-script-show-generation.sh | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

(limited to 'nix-script-show-generation.sh')

diff --git a/nix-script-show-generation.sh b/nix-script-show-generation.sh
index 27320ad..60216c6 100755
--- a/nix-script-show-generation.sh
+++ b/nix-script-show-generation.sh
@@ -4,11 +4,12 @@ source $(dirname ${BASH_SOURCE[0]})/nix-utils.sh
 
 usage() {
     cat <<EOS
-    $(help_synopsis "${BASH_SOURCE[0]}" "[-s | -u] [-h]")
+    $(help_synopsis "${BASH_SOURCE[0]}" "[-s | -u | -p <profile>] [-h]")
 
-        -s       Show system generation
-        -u       Show user generation (default)
-        -h       Show this help and exit
+        -s           | Show system generation
+        -u           | Show user generation (default)
+        -p <profile> | Show <profile> generation
+        -h           | Show this help and exit
 
     Show the number of the current generations. Defaults to user
     profile, but system profile can be checked as well.
@@ -25,8 +26,9 @@ EOS
 
 SYSTEM=0
 USER=1
+PROFILE=""
 
-while getopts "suh" OPTION
+while getopts "sup:h" OPTION
 do
     case $OPTION in
         s)
@@ -39,6 +41,13 @@ do
             USER=1
             stdout "Showing user generation"
             ;;
+        p)
+            SYSTEM=0
+            USER=0
+            PROFILE=$OPTARG
+            dbg "PROFILE = $PROFILE"
+            ;;
+
         h)
             stdout "Showing usage"
             usage
@@ -47,7 +56,14 @@ do
     esac
 done
 
-([[ $SYSTEM -eq 1 ]] && current_system_generation) || current_user_generation
+if [[ ! -z "$PROFILE" ]]
+then
+    grep_generation "sudo nix-env -p /nix/var/nix/profiles/$PROFILE --list-generations"
+else
+    ([[ $SYSTEM -eq 1 ]] && current_system_generation) || \
+        current_user_generation
+fi
+
 
 stdout "Ready"
 
-- 
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