From 17e6bd4dcfb5d6483f2f22a770da582ac2edee89 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 23 Jan 2023 12:05:22 +0100
Subject: [PATCH] Update dupc_function.sh

re-wrote it some to followe the changes in the main script.
---
 dupc_function.sh | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/dupc_function.sh b/dupc_function.sh
index 4047f0f..2ed8526 100644
--- a/dupc_function.sh
+++ b/dupc_function.sh
@@ -1,25 +1,29 @@
 #!/bin/bash
 
-### Requires the regctl binary, either in PATH or as an alias
+### Requires the regctl binary.
 ### Get it here: https://github.com/regclient/regclient/releases
 
 ### Preferably placed in .bashrc or similar
 
-### if regctl is not in PATH, set the alias:
-alias regctl="/path/to/regctl"
-
+### Set the full path to the binary or just regctl if in PATH:
+regctl="/home/gw-tdc/dockers/regctl"
 
 dupc () {
-  if [[ -z "$1" ]]; then 
+  if [[ "$@" == "help" ]]; then 
     echo "No container name given, here's the list of currently running containers:" 
     docker ps --format '{{.Names}}'
   else
-    for i in $(docker ps --filter "name=$1" --format '{{.Names}}')
+    for i in $(docker ps --filter "name=$@" --format '{{.Names}}')
     do
       RepoUrl=$(docker inspect $i --format='{{.Config.Image}}')
-      LocalHash=$(docker image inspect $RepoUrl --format '{{.RepoDigests}}' | sed -e 's/.*sha256/sha256/' -e 's/\]$//')
-      RegHash=$(regctl image digest --list $RepoUrl)
-      if [[ "$LocalHash" != "$RegHash" ]] ; then printf "Updates available for $i.\n" ; else printf "$i is already latest.\n" ; fi
+      LocalHash=$(docker image inspect $RepoUrl --format '{{.RepoDigests}}')
+      RegHash=$($regctl image digest --list $RepoUrl 2>/dev/null)
+      if [ $? -eq 0 ] ; then
+        if [[ "$LocalHash" = *"$RegHash"* ]] ; then printf "$i is already latest.\n" ; else printf "$i got updates.\n" ; fi
+      else
+        printf "$i got errors, no check possible.\n"
+      fi 
     done
   fi
 }
+dupc $1