From d4d89c305c9c8c2de871db2775919b239851c388 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 13 Feb 2025 21:39:29 +0100
Subject: [PATCH 01/25] osx/bsd compatibility changes

---
 dockcheck.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index f42febf..100e466 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -131,7 +131,8 @@ choosecontainers() {
 
 datecheck() {
   ImageDate=$($regbin -v error image inspect "$RepoUrl" --format='{{.Created}}' | cut -d" " -f1 )
-  ImageAge=$(( ( $(date +%s) - $(date -d "$ImageDate" +%s) )/86400 ))
+  ImageEpoch=$(date -d "$ImageDate" +%s 2>/dev/null) || ImageEpoch=$(date -f "%Y-%m-%d" -j "$ImageDate" +%s)
+  ImageAge=$(( ( $(date +%s) - $ImageEpoch )/86400 ))
   if [ "$ImageAge" -gt "$DaysOld" ] ; then
     return 0
   else
@@ -180,7 +181,7 @@ IFS=',' read -r -a Excludes <<< "$Exclude" ; unset IFS
 binary_downloader() {
   BinaryName="$1"
   BinaryUrl="$2"
-  case "$(uname --machine)" in
+  case "$(uname -m)" in
     x86_64|amd64) architecture="amd64" ;;
     arm64|aarch64) architecture="arm64";;
     *) printf "\n%bArchitecture not supported, exiting.%b\n" "$c_red" "$c_reset" ; exit 1;;

From 73050abf10fbb880c5f6f184627b74e25e84f2bc Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 13 Feb 2025 22:18:08 +0100
Subject: [PATCH 02/25] rewrote regctl download

---
 dockcheck.sh | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 100e466..400f64b 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -196,9 +196,10 @@ binary_downloader() {
 
 distro_checker() {
   if [[ -f /etc/arch-release ]] ; then PkgInstaller="pacman -S"
-  elif [[ -f /etc/redhat-release ]] ; then PkgInstaller="dnf install"
-  elif [[ -f /etc/SuSE-release ]] ; then PkgInstaller="zypper install"
-  elif [[ -f /etc/debian_version ]] ; then PkgInstaller="apt-get install"
+  elif [[ -f /etc/redhat-release ]] ; then PkgInstaller="sudo dnf install"
+  elif [[ -f /etc/SuSE-release ]] ; then PkgInstaller="sudo zypper install"
+  elif [[ -f /etc/debian_version ]] ; then PkgInstaller="sudo apt-get install"
+  elif [[ $(uname -s) == "Darwin" ]] ; then PkgInstaller="brew install"
   else PkgInstaller="ERROR" ; printf "\n%bNo distribution could be determined%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
   fi
 }
@@ -213,10 +214,10 @@ else
   if [[ "$GetJq" =~ [yYsS] ]] ; then
     [[ "$GetJq" =~ [yY] ]] && distro_checker
     if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then 
-      (sudo $PkgInstaller jq) ; PkgExitcode="$?"
+      ($PkgInstaller jq) ; PkgExitcode="$?"
       [[ "$PkgExitcode" == 0 ]] && jqbin="jq" || printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
     fi
-    if [[ "$GetJq" =~ [nN] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
+    if [[ "$GetJq" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
         binary_downloader "jq" "https://github.com/jqlang/jq/releases/latest/download/jq-linux-TEMP"
         [[ -f "$ScriptWorkDir/jq" ]] && jqbin="$ScriptWorkDir/jq" 
     fi
@@ -232,8 +233,18 @@ elif [[ -f "$ScriptWorkDir/regctl" ]]; then regbin="$ScriptWorkDir/regctl" ;
 else
   read -r -p "Required dependency 'regctl' missing, do you want it downloaded? y/[n] " GetRegctl
   if [[ "$GetRegctl" =~ [yY] ]] ; then
-    binary_downloader "regctl" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
-    [[ -f "$ScriptWorkDir/regctl" ]] && regbin="$ScriptWorkDir/regctl" 
+    if [[ $(uname -s) == "Darwin" ]]; then 
+      echo "Detected macOS, Installing regclient using Homebrew."
+      distro_checker
+      if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then 
+        ($PkgInstaller regclient) ; PkgExitcode="$?"
+        [[ "$PkgExitcode" == 0 ]] && regbin="regclient" || printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+      fi
+    else
+      GetRegctl="S"
+    if [[ "$GetRegct" =~ [Ss] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
+      binary_downloader "regctl" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
+      [[ -f "$ScriptWorkDir/regctl" ]] && regbin="$ScriptWorkDir/regctl" 
   else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
   fi
 fi

From 6cba140522f39a4ea1aa8ffdd4ceda98913d7fad Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 13 Feb 2025 22:21:53 +0100
Subject: [PATCH 03/25] too tired.. forgot fi's

---
 dockcheck.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dockcheck.sh b/dockcheck.sh
index 400f64b..5b998c9 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -242,9 +242,11 @@ else
       fi
     else
       GetRegctl="S"
+    fi
     if [[ "$GetRegct" =~ [Ss] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
       binary_downloader "regctl" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
       [[ -f "$ScriptWorkDir/regctl" ]] && regbin="$ScriptWorkDir/regctl" 
+    fi
   else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
   fi
 fi

From 6bc896b1931ab326ed6a4b6a21a42edf4b67efb3 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Fri, 14 Feb 2025 13:01:23 +0100
Subject: [PATCH 04/25] typo

---
 dockcheck.sh | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 5b998c9..bd563b6 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -153,7 +153,7 @@ progress_bar() {
 }
 
 # Function to add user-provided urls to releasenotes
-releasenotes() { 
+releasenotes() {
   for update in ${GotUpdates[@]}; do
     found=false
     while read -r container url; do
@@ -187,8 +187,8 @@ binary_downloader() {
     *) printf "\n%bArchitecture not supported, exiting.%b\n" "$c_red" "$c_reset" ; exit 1;;
   esac
   GetUrl="${BinaryUrl/TEMP/"$architecture"}"
-  if [[ $(command -v curl) ]]; then curl -L $GetUrl > "$ScriptWorkDir/$BinaryName" ; 
-  elif [[ $(command -v wget) ]]; then wget $GetUrl -O "$ScriptWorkDir/$BinaryName" ; 
+  if [[ $(command -v curl) ]]; then curl -L $GetUrl > "$ScriptWorkDir/$BinaryName" ;
+  elif [[ $(command -v wget) ]]; then wget $GetUrl -O "$ScriptWorkDir/$BinaryName" ;
   else printf "%s\n" "curl/wget not available - get $BinaryName manually from the repo link, exiting."; exit 1;
   fi
   [[ -f "$ScriptWorkDir/$BinaryName" ]] && chmod +x "$ScriptWorkDir/$BinaryName"
@@ -213,13 +213,13 @@ else
   GetJq=${GetJq:-no} # set default to no if nothing is given
   if [[ "$GetJq" =~ [yYsS] ]] ; then
     [[ "$GetJq" =~ [yY] ]] && distro_checker
-    if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then 
+    if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
       ($PkgInstaller jq) ; PkgExitcode="$?"
       [[ "$PkgExitcode" == 0 ]] && jqbin="jq" || printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
     fi
     if [[ "$GetJq" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
         binary_downloader "jq" "https://github.com/jqlang/jq/releases/latest/download/jq-linux-TEMP"
-        [[ -f "$ScriptWorkDir/jq" ]] && jqbin="$ScriptWorkDir/jq" 
+        [[ -f "$ScriptWorkDir/jq" ]] && jqbin="$ScriptWorkDir/jq"
     fi
   else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
   fi
@@ -233,19 +233,19 @@ elif [[ -f "$ScriptWorkDir/regctl" ]]; then regbin="$ScriptWorkDir/regctl" ;
 else
   read -r -p "Required dependency 'regctl' missing, do you want it downloaded? y/[n] " GetRegctl
   if [[ "$GetRegctl" =~ [yY] ]] ; then
-    if [[ $(uname -s) == "Darwin" ]]; then 
+    if [[ $(uname -s) == "Darwin" ]]; then
       echo "Detected macOS, Installing regclient using Homebrew."
       distro_checker
-      if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then 
+      if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
         ($PkgInstaller regclient) ; PkgExitcode="$?"
         [[ "$PkgExitcode" == 0 ]] && regbin="regclient" || printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
       fi
     else
       GetRegctl="S"
     fi
-    if [[ "$GetRegct" =~ [Ss] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
+    if [[ "$GetRegctl" =~ [Ss] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
       binary_downloader "regctl" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
-      [[ -f "$ScriptWorkDir/regctl" ]] && regbin="$ScriptWorkDir/regctl" 
+      [[ -f "$ScriptWorkDir/regctl" ]] && regbin="$ScriptWorkDir/regctl"
     fi
   else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
   fi

From e68adb34d0e177dac7771c1dd7ee9b7ae6fc84e5 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Sat, 15 Feb 2025 13:23:42 +0100
Subject: [PATCH 05/25] added info about macos osx

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a4360c0..63607aa 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,8 @@ ___
   - regctl requires `amd64/arm64` - see [workaround](#roller_coaster-workaround-for-non-amd64--arm64) if other architecture is used.
 
 ## :tent: Install Instructions
-Download the script to a directory in **PATH**, I'd suggest using `~/.local/bin` as that's usually in **PATH**.
+Download the script to a directory in **PATH**, I'd suggest using `~/.local/bin` as that's usually in **PATH**.   
+For OSX/macOS preferably use `/usr/local/bin`.
 ```sh
 # basic example with curl:
 curl -L https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh -o ~/.local/bin/dockcheck.sh
@@ -98,6 +99,9 @@ chmod +x ~/.local/bin/dockcheck.sh
 
 # or oneliner with wget:
 wget -O ~/.local/bin/dockcheck.sh "https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh" && chmod +x ~/.local/bin/dockcheck.sh
+
+# OSX or macOS version with curl:
+ curl -L https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh -o /usr/local/bin/dockcheck.sh && chmod +x /usr/local/bin/dockcheck.sh
 ```
 Then call the script anywhere with just `dockcheck.sh`.
 Add preferred `notify.sh`-template to the same directory - this will not be touched by the scripts self-update function.

From 27896c18ba7b8fdb1f1276390afe5746a377de97 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 17 Feb 2025 22:23:10 +0100
Subject: [PATCH 06/25] squashed multiple dependency downloaders to one
 function

---
 dockcheck.sh | 81 ++++++++++++++++++++++------------------------------
 1 file changed, 34 insertions(+), 47 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index bd563b6..3ef134a 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -204,54 +204,41 @@ distro_checker() {
   fi
 }
 
-# Dependency check for jq in PATH or directory
-if [[ $(command -v jq) ]]; then jqbin="jq" ;
-elif [[ -f "$ScriptWorkDir/jq" ]]; then jqbin="$ScriptWorkDir/jq" ;
-else
-  printf "%s\n" "Required dependency 'jq' missing, do you want to install it?"
-  read -r -p "y: With packagemanager (sudo). / s: Download static binary. y/s/[n] " GetJq
-  GetJq=${GetJq:-no} # set default to no if nothing is given
-  if [[ "$GetJq" =~ [yYsS] ]] ; then
-    [[ "$GetJq" =~ [yY] ]] && distro_checker
-    if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
-      ($PkgInstaller jq) ; PkgExitcode="$?"
-      [[ "$PkgExitcode" == 0 ]] && jqbin="jq" || printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
-    fi
-    if [[ "$GetJq" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
-        binary_downloader "jq" "https://github.com/jqlang/jq/releases/latest/download/jq-linux-TEMP"
-        [[ -f "$ScriptWorkDir/jq" ]] && jqbin="$ScriptWorkDir/jq"
-    fi
-  else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
-  fi
-fi
-# Final check if binary is correct
-$jqbin --version &> /dev/null  || { printf "%s\n" "jq is not working - try to remove it and re-download it, exiting."; exit 1; }
+# Dependency check + installer function
+dependency_check() {
+ AppName="$1"
+ AppVar="$2"
+ AppUrl="$3"
+ if [[ $(command -v $AppName) ]]; then export $AppVar="$AppName" ;
+ elif [[ -f "$ScriptWorkDir/$AppName" ]]; then export $AppVar="$ScriptWorkDir/$AppName" ;
+ else
+   printf "%s\n" "Required dependency '$AppName' missing, do you want to install it?"
+   read -r -p "y: With packagemanager (sudo). / s: Download static binary. y/s/[n] " GetBin
+   GetBin=${GetBin:-no} # set default to no if nothing is given
+   if [[ "$GetBin" =~ [yYsS] ]] ; then
+     [[ "$GetBin" =~ [yY] ]] && distro_checker
+     if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
+       [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName=regclient
+       ($PkgInstaller $AppName) ; PkgExitcode="$?"
+       if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }  
+   else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+       fi
+     fi
+     if [[ "$GetBin" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
+         binary_downloader "$AppName" "$AppUrl"
+         [[ -f "$ScriptWorkDir/$AppName" ]] && { export $AppVar="$ScriptWorkDir/$1" && printf "\n%b$AppName downloaded.%b\n" "$c_green" "$c_reset"; }
+     fi
+   else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
+   fi
+ fi
+ # Final check if binary is correct
+ [[ "$1" == "jq" ]] && VerFlag="--version"
+ [[ "$1" == "regctl" ]] && VerFlag="version"
+ ${!AppVar} $VerFlag &> /dev/null  || { printf "%s\n" "$AppName is not working - try to remove it and re-download it, exiting."; exit 1; }
+}
 
-# Dependency check for regctl in PATH or directory
-if [[ $(command -v regctl) ]]; then regbin="regctl" ;
-elif [[ -f "$ScriptWorkDir/regctl" ]]; then regbin="$ScriptWorkDir/regctl" ;
-else
-  read -r -p "Required dependency 'regctl' missing, do you want it downloaded? y/[n] " GetRegctl
-  if [[ "$GetRegctl" =~ [yY] ]] ; then
-    if [[ $(uname -s) == "Darwin" ]]; then
-      echo "Detected macOS, Installing regclient using Homebrew."
-      distro_checker
-      if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
-        ($PkgInstaller regclient) ; PkgExitcode="$?"
-        [[ "$PkgExitcode" == 0 ]] && regbin="regclient" || printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
-      fi
-    else
-      GetRegctl="S"
-    fi
-    if [[ "$GetRegctl" =~ [Ss] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
-      binary_downloader "regctl" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
-      [[ -f "$ScriptWorkDir/regctl" ]] && regbin="$ScriptWorkDir/regctl"
-    fi
-  else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
-  fi
-fi
-# Final check if binary is correct
-$regbin version &> /dev/null  || { printf "%s\n" "regctl is not working - try to remove it and re-download it, exiting."; exit 1; }
+dependency_check "regctl" "regbin" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
+dependency_check "jq" "jqbin" "https://github.com/jqlang/jq/releases/latest/download/jq-linux-TEMP"
 
 # Check docker compose binary
 if docker compose version &> /dev/null ; then DockerBin="docker compose" ;

From b9188443360b726ee5a29d6dd82f9d2831caaf5d Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 17 Feb 2025 22:38:14 +0100
Subject: [PATCH 07/25] reformatting

---
 dockcheck.sh | 58 ++++++++++++++++++++++++++--------------------------
 1 file changed, 29 insertions(+), 29 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 3ef134a..0e199cd 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -206,35 +206,35 @@ distro_checker() {
 
 # Dependency check + installer function
 dependency_check() {
- AppName="$1"
- AppVar="$2"
- AppUrl="$3"
- if [[ $(command -v $AppName) ]]; then export $AppVar="$AppName" ;
- elif [[ -f "$ScriptWorkDir/$AppName" ]]; then export $AppVar="$ScriptWorkDir/$AppName" ;
- else
-   printf "%s\n" "Required dependency '$AppName' missing, do you want to install it?"
-   read -r -p "y: With packagemanager (sudo). / s: Download static binary. y/s/[n] " GetBin
-   GetBin=${GetBin:-no} # set default to no if nothing is given
-   if [[ "$GetBin" =~ [yYsS] ]] ; then
-     [[ "$GetBin" =~ [yY] ]] && distro_checker
-     if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
-       [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName=regclient
-       ($PkgInstaller $AppName) ; PkgExitcode="$?"
-       if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }  
-   else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
-       fi
-     fi
-     if [[ "$GetBin" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
-         binary_downloader "$AppName" "$AppUrl"
-         [[ -f "$ScriptWorkDir/$AppName" ]] && { export $AppVar="$ScriptWorkDir/$1" && printf "\n%b$AppName downloaded.%b\n" "$c_green" "$c_reset"; }
-     fi
-   else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
-   fi
- fi
- # Final check if binary is correct
- [[ "$1" == "jq" ]] && VerFlag="--version"
- [[ "$1" == "regctl" ]] && VerFlag="version"
- ${!AppVar} $VerFlag &> /dev/null  || { printf "%s\n" "$AppName is not working - try to remove it and re-download it, exiting."; exit 1; }
+  AppName="$1"
+  AppVar="$2"
+  AppUrl="$3"
+  if [[ $(command -v $AppName) ]]; then export $AppVar="$AppName" ;
+  elif [[ -f "$ScriptWorkDir/$AppName" ]]; then export $AppVar="$ScriptWorkDir/$AppName" ;
+  else
+    printf "%s\n" "Required dependency '$AppName' missing, do you want to install it?"
+    read -r -p "y: With packagemanager (sudo). / s: Download static binary. y/s/[n] " GetBin
+    GetBin=${GetBin:-no} # set default to no if nothing is given
+    if [[ "$GetBin" =~ [yYsS] ]] ; then
+      [[ "$GetBin" =~ [yY] ]] && distro_checker
+      if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
+        [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName=regclient
+        ($PkgInstaller $AppName) ; PkgExitcode="$?"
+        if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }
+    else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+        fi
+      fi
+      if [[ "$GetBin" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
+          binary_downloader "$AppName" "$AppUrl"
+          [[ -f "$ScriptWorkDir/$AppName" ]] && { export $AppVar="$ScriptWorkDir/$1" && printf "\n%b$AppName downloaded.%b\n" "$c_green" "$c_reset"; }
+      fi
+    else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
+    fi
+  fi
+  # Final check if binary is correct
+  [[ "$1" == "jq" ]] && VerFlag="--version"
+  [[ "$1" == "regctl" ]] && VerFlag="version"
+  ${!AppVar} $VerFlag &> /dev/null  || { printf "%s\n" "$AppName is not working - try to remove it and re-download it, exiting."; exit 1; }
 }
 
 dependency_check "regctl" "regbin" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"

From 41029f628d5fd0e2c6315c613663e3dc9a6878f1 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 18 Feb 2025 07:59:11 +0100
Subject: [PATCH 08/25] Update dockcheck.sh

indentation error.
---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 0e199cd..6c4ad35 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -221,7 +221,7 @@ dependency_check() {
         [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName=regclient
         ($PkgInstaller $AppName) ; PkgExitcode="$?"
         if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }
-    else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+        else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
         fi
       fi
       if [[ "$GetBin" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then

From 76e6a5c38b49c97479a72b449d41730b0e22a514 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 18 Feb 2025 08:15:52 +0100
Subject: [PATCH 09/25] Update dockcheck.sh

typo
---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 6c4ad35..8d7949e 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -218,7 +218,7 @@ dependency_check() {
     if [[ "$GetBin" =~ [yYsS] ]] ; then
       [[ "$GetBin" =~ [yY] ]] && distro_checker
       if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
-        [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName=regclient
+        [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName="regclient"
         ($PkgInstaller $AppName) ; PkgExitcode="$?"
         if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }
         else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"

From 78a7e1137fd569b33c588a5c5e5c52bce6f2ec88 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 18 Feb 2025 10:07:21 +0100
Subject: [PATCH 10/25] OSX appname return

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 8d7949e..e27f12d 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -219,7 +219,7 @@ dependency_check() {
       [[ "$GetBin" =~ [yY] ]] && distro_checker
       if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
         [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName="regclient"
-        ($PkgInstaller $AppName) ; PkgExitcode="$?"
+        ($PkgInstaller $AppName) ; PkgExitcode="$?" && AppName="$1"
         if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }
         else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
         fi

From 3655f5ae8a002fd6068ebbe655f303e8c54dcd9a Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Wed, 19 Feb 2025 13:36:30 +0100
Subject: [PATCH 11/25] version bump

---
 README.md    | 8 +-------
 dockcheck.sh | 4 ++--
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 63607aa..9a716f7 100644
--- a/README.md
+++ b/README.md
@@ -19,17 +19,11 @@
 ___
 ## :bell: Changelog
 
+- **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
 - **v0.5.4.0**: Added support for a Prometheus+node_exporter metric collection through a file collector.
 - **v0.5.3.0**: Local image check changed (use imageId instead of name) and Gotify-template fixed (whale icon removed).
 - **v0.5.2.1**: Rewrite of dependency downloads, jq can be installed with package manager or static binary.
 - **v0.5.1**: DEPENDENCY WARNING: now requires **jq**. + Upstreaming changes from [sudo-kraken/podcheck](https://github.com/sudo-kraken/podcheck)
-- **v0.5.0**: Rewritten notify logic - all templates are adjusted and should be migrated!
-    - Copy the custom settings from your current template to the new version of the same template.
-    - Look into, copy and customize the `urls.list` file if that's of interest.
-    - Other changes:
-        - Added Discord notify template.
-        - Verbosity changed of `regctl`.
-- **v0.4.9**: Added a function to enrich the notify-message with release note URLs. See [Release notes addon](https://github.com/mag37/dockcheck#date-release-notes-addon-to-notifications)
 ___
 
 
diff --git a/dockcheck.sh b/dockcheck.sh
index e27f12d..8f320aa 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.5.4.0"
-### ChangeNotes: Added support for a Prometheus+node_exporter metric collection through a file collector.
+VERSION="v0.5.5.0"
+### ChangeNotes: osx and bsd compatibility changes + rewrite of dependency installer
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 

From 65e875e8604ab9d46cefbb39620201b63bd5ee5c Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Wed, 19 Feb 2025 20:26:54 +0100
Subject: [PATCH 12/25] fixed typo

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 8f320aa..365d7cb 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -316,7 +316,7 @@ unset IFS
 
 # Run the prometheus exporter function
 if [ -n "$CollectorTextFileDirectory" ] ; then
-  source "$ScriptWorkDir"/addons/prometheus/prometheus_collector.sh && prometheus_exporter ${#NoUpdates[@]} ${#GotUpdates[@]} ${#GotError[@]}
+  source "$ScriptWorkDir"/addons/prometheus/prometheus_collector.sh && prometheus_exporter ${#NoUpdates[@]} ${#GotUpdates[@]} ${#GotErrors[@]}
 fi
 
 # Define how many updates are available

From 62a3d10b4f73e8c24347f3846365c658a0d7cd2f Mon Sep 17 00:00:00 2001
From: Thaurin <thaurin@gmail.com>
Date: Wed, 19 Feb 2025 16:28:11 +0100
Subject: [PATCH 13/25] Add async checking for updates for improved performance

---
 dockcheck.sh | 107 ++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 84 insertions(+), 23 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 365d7cb..5d0c38e 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -34,6 +34,7 @@ Help() {
   echo "-s     Include stopped containers in the check. (Logic: docker ps -a)."
   echo "-t     Set a timeout (in seconds) per container for registry checkups, 10 is default."
   echo "-v     Prints current version."
+  echo "-z     [Experimental] Check images asynchrously for increased performance."
   echo
   echo "Project source: $Github"
 }
@@ -48,7 +49,7 @@ c_reset="\033[0m"
 
 Timeout=10
 Stopped=""
-while getopts "aynpfrhlisvmc:e:d:t:" options; do
+while getopts "aynpfrhlisvmzc:e:d:t:" options; do
   case "${options}" in
     a|y) AutoUp="yes" ;;
     c)   CollectorTextFileDirectory="${OPTARG}"
@@ -64,6 +65,7 @@ while getopts "aynpfrhlisvmc:e:d:t:" options; do
     s)   Stopped="-a" ;;
     t)   Timeout="${OPTARG}" ;;
     v)   printf "%s\n" "$VERSION" ; exit 0 ;;
+    z)   ParallelCheck=1 ;;
     d)   DaysOld=${OPTARG}
          if ! [[ $DaysOld =~ ^[0-9]+$ ]] ; then { printf "Days -d argument given (%s) is not a number.\n" "${DaysOld}" ; exit 2 ; } ; fi ;;
     h|*) Help ; exit 2 ;;
@@ -282,31 +284,90 @@ if [[ $t_out ]]; then
 else t_out=""
 fi
 
-# Check the image-hash of every running container VS the registry
-for i in $(docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}') ; do
-  ((RegCheckQue+=1))
-  progress_bar "$RegCheckQue" "$ContCount"
-  # Looping every item over the list of excluded names and skipping
-  for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && continue 2 ; done
-  ImageId=$(docker inspect "$i" --format='{{.Image}}')
-  RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
-  LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
-  # Checking for errors while setting the variable
-  if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
-    if [[ "$LocalHash" = *"$RegHash"* ]] ; then
-      NoUpdates+=("$i")
-    else
-      if [[ -n "$DaysOld" ]] && ! datecheck ; then
-        NoUpdates+=("+$i ${ImageAge}d")
+if [[ $ParallelCheck -ne 1 ]]; then
+  # Check the image-hash of every running container VS the registry
+  for i in $(docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}') ; do
+    ((RegCheckQue+=1))
+    progress_bar "$RegCheckQue" "$ContCount"
+    # Looping every item over the list of excluded names and skipping
+    for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && continue 2 ; done
+    ImageId=$(docker inspect "$i" --format='{{.Image}}')
+    RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
+    LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
+    # Checking for errors while setting the variable
+    if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
+      if [[ "$LocalHash" = *"$RegHash"* ]] ; then
+        NoUpdates+=("$i")
       else
-        GotUpdates+=("$i")
+        if [[ -n "$DaysOld" ]] && ! datecheck ; then
+          NoUpdates+=("+$i ${ImageAge}d")
+        else
+          GotUpdates+=("$i")
+        fi
       fi
+    else
+      # Here the RegHash is the result of an error code
+      GotErrors+=("$i - ${RegHash}")
     fi
-  else
-    # Here the RegHash is the result of an error code
-    GotErrors+=("$i - ${RegHash}")
-  fi
-done
+  done
+else
+  check_image() {
+    i="$1"
+    local Excludes=($Excludes_string)
+    local skip
+    for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && skip=1 ; done
+
+    if [[ $skip -eq 1 ]]; then
+      echo Skip $i
+      return
+    fi
+
+    local NoUpdates GotUpdates GotErrors
+    ImageId=$(docker inspect "$i" --format='{{.Image}}')
+    RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
+    LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
+
+    # Checking for errors while setting the variable
+    if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
+      if [[ "$LocalHash" = *"$RegHash"* ]] ; then
+        echo NoUpdates "$i"
+      else
+        if [[ -n "$DaysOld" ]] && ! datecheck ; then
+          echo NoUpdates "+$i ${ImageAge}d"
+        else
+          echo GotUpdates "$i"
+        fi
+      fi
+    else
+      # Here the RegHash is the result of an error code
+      echo GotErrors "$i - ${RegHash}"
+    fi
+  }
+
+  export -f check_image datecheck
+  export Excludes_string="${Excludes[@]}" # Can only export scalar variables
+  export t_out regbin RepoUrl
+
+  # Asynchronously check the image-hash of every running container VS the registry
+  while read -r line; do
+    ((RegCheckQue+=1))
+    progress_bar "$RegCheckQue" "$ContCount"
+
+    Got=${line%% *}  # Extracts the first word (NoUpdates, GotUpdates, GotErrors)
+    item=${line#* }
+
+    case "$Got" in
+      NoUpdates) NoUpdates+=("$item") ;;
+      GotUpdates) GotUpdates+=("$item") ;;
+      GotErrors) GotErrors+=("$item") ;;
+      Skip) ;;
+      *) ;;
+    esac
+  done < <( \
+    docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \
+    xargs -P 8 -I {} bash -c 'check_image "{}"' \
+  )
+fi
 
 # Sort arrays alphabetically
 IFS=$'\n'

From a2868ea50531d22a7d1ddbbbd1a4d4a8faa6c542 Mon Sep 17 00:00:00 2001
From: Thaurin <thaurin@gmail.com>
Date: Thu, 20 Feb 2025 15:54:52 +0100
Subject: [PATCH 14/25] Add error message; increase number of subprocesses

---
 dockcheck.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 5d0c38e..9e3da8b 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -361,11 +361,11 @@ else
       GotUpdates) GotUpdates+=("$item") ;;
       GotErrors) GotErrors+=("$item") ;;
       Skip) ;;
-      *) ;;
+      *) echo "Error: invalid result from subprocess! (${item})" ;;
     esac
   done < <( \
     docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \
-    xargs -P 8 -I {} bash -c 'check_image "{}"' \
+    xargs -P 32 -I {} bash -c 'check_image "{}"' \
   )
 fi
 

From 408a8b14dd5a3f1ac3c7ac4beaf99f34108a5b7a Mon Sep 17 00:00:00 2001
From: Thaurin <thaurin@gmail.com>
Date: Thu, 20 Feb 2025 18:39:27 +0100
Subject: [PATCH 15/25] Fix -d parameter not working anymore

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 9e3da8b..0327b27 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -346,7 +346,7 @@ else
 
   export -f check_image datecheck
   export Excludes_string="${Excludes[@]}" # Can only export scalar variables
-  export t_out regbin RepoUrl
+  export t_out regbin RepoUrl DaysOld
 
   # Asynchronously check the image-hash of every running container VS the registry
   while read -r line; do

From 3aeee837f9bb426f9c65534b7bab2a29d8525aa4 Mon Sep 17 00:00:00 2001
From: Thaurin <thaurin@gmail.com>
Date: Fri, 21 Feb 2025 17:54:19 +0100
Subject: [PATCH 16/25] Print entire line on error

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 0327b27..13bf6e2 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -361,7 +361,7 @@ else
       GotUpdates) GotUpdates+=("$item") ;;
       GotErrors) GotErrors+=("$item") ;;
       Skip) ;;
-      *) echo "Error: invalid result from subprocess! (${item})" ;;
+      *) echo "Error! Unexpected output from subprocess: ${line}" ;;
     esac
   done < <( \
     docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \

From b2d67c9f524520d13ce591c2e38073d8784f481a Mon Sep 17 00:00:00 2001
From: Thaurin <thaurin@gmail.com>
Date: Fri, 21 Feb 2025 17:57:09 +0100
Subject: [PATCH 17/25] Removed experimental -z flag and old version check code

---
 dockcheck.sh | 129 ++++++++++++++++++++-------------------------------
 1 file changed, 50 insertions(+), 79 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 13bf6e2..462e7e6 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -34,7 +34,6 @@ Help() {
   echo "-s     Include stopped containers in the check. (Logic: docker ps -a)."
   echo "-t     Set a timeout (in seconds) per container for registry checkups, 10 is default."
   echo "-v     Prints current version."
-  echo "-z     [Experimental] Check images asynchrously for increased performance."
   echo
   echo "Project source: $Github"
 }
@@ -49,7 +48,7 @@ c_reset="\033[0m"
 
 Timeout=10
 Stopped=""
-while getopts "aynpfrhlisvmzc:e:d:t:" options; do
+while getopts "aynpfrhlisvmc:e:d:t:" options; do
   case "${options}" in
     a|y) AutoUp="yes" ;;
     c)   CollectorTextFileDirectory="${OPTARG}"
@@ -65,7 +64,6 @@ while getopts "aynpfrhlisvmzc:e:d:t:" options; do
     s)   Stopped="-a" ;;
     t)   Timeout="${OPTARG}" ;;
     v)   printf "%s\n" "$VERSION" ; exit 0 ;;
-    z)   ParallelCheck=1 ;;
     d)   DaysOld=${OPTARG}
          if ! [[ $DaysOld =~ ^[0-9]+$ ]] ; then { printf "Days -d argument given (%s) is not a number.\n" "${DaysOld}" ; exit 2 ; } ; fi ;;
     h|*) Help ; exit 2 ;;
@@ -284,90 +282,63 @@ if [[ $t_out ]]; then
 else t_out=""
 fi
 
-if [[ $ParallelCheck -ne 1 ]]; then
-  # Check the image-hash of every running container VS the registry
-  for i in $(docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}') ; do
-    ((RegCheckQue+=1))
-    progress_bar "$RegCheckQue" "$ContCount"
-    # Looping every item over the list of excluded names and skipping
-    for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && continue 2 ; done
-    ImageId=$(docker inspect "$i" --format='{{.Image}}')
-    RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
-    LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
-    # Checking for errors while setting the variable
-    if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
-      if [[ "$LocalHash" = *"$RegHash"* ]] ; then
-        NoUpdates+=("$i")
-      else
-        if [[ -n "$DaysOld" ]] && ! datecheck ; then
-          NoUpdates+=("+$i ${ImageAge}d")
-        else
-          GotUpdates+=("$i")
-        fi
-      fi
+check_image() {
+  i="$1"
+  local Excludes=($Excludes_string)
+  local skip
+  for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && skip=1 ; done
+
+  if [[ $skip -eq 1 ]]; then
+    echo Skip $i
+    return
+  fi
+
+  local NoUpdates GotUpdates GotErrors
+  ImageId=$(docker inspect "$i" --format='{{.Image}}')
+  RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
+  LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
+
+  # Checking for errors while setting the variable
+  if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
+    if [[ "$LocalHash" = *"$RegHash"* ]] ; then
+      echo NoUpdates "$i"
     else
-      # Here the RegHash is the result of an error code
-      GotErrors+=("$i - ${RegHash}")
-    fi
-  done
-else
-  check_image() {
-    i="$1"
-    local Excludes=($Excludes_string)
-    local skip
-    for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && skip=1 ; done
-
-    if [[ $skip -eq 1 ]]; then
-      echo Skip $i
-      return
-    fi
-
-    local NoUpdates GotUpdates GotErrors
-    ImageId=$(docker inspect "$i" --format='{{.Image}}')
-    RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
-    LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
-
-    # Checking for errors while setting the variable
-    if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
-      if [[ "$LocalHash" = *"$RegHash"* ]] ; then
-        echo NoUpdates "$i"
+      if [[ -n "$DaysOld" ]] && ! datecheck ; then
+        echo NoUpdates "+$i ${ImageAge}d"
       else
-        if [[ -n "$DaysOld" ]] && ! datecheck ; then
-          echo NoUpdates "+$i ${ImageAge}d"
-        else
-          echo GotUpdates "$i"
-        fi
+        echo GotUpdates "$i"
       fi
-    else
-      # Here the RegHash is the result of an error code
-      echo GotErrors "$i - ${RegHash}"
     fi
-  }
+  else
+    # Here the RegHash is the result of an error code
+    echo GotErrors "$i - ${RegHash}"
+  fi
+}
 
-  export -f check_image datecheck
-  export Excludes_string="${Excludes[@]}" # Can only export scalar variables
-  export t_out regbin RepoUrl DaysOld
+# Make required functions and variables available to subprocesses
+export -f check_image datecheck
+export Excludes_string="${Excludes[@]}" # Can only export scalar variables
+export t_out regbin RepoUrl DaysOld
 
-  # Asynchronously check the image-hash of every running container VS the registry
-  while read -r line; do
-    ((RegCheckQue+=1))
-    progress_bar "$RegCheckQue" "$ContCount"
+# Asynchronously check the image-hash of every running container VS the registry
+while read -r line; do
+  ((RegCheckQue+=1))
+  progress_bar "$RegCheckQue" "$ContCount"
 
-    Got=${line%% *}  # Extracts the first word (NoUpdates, GotUpdates, GotErrors)
-    item=${line#* }
+  Got=${line%% *}  # Extracts the first word (NoUpdates, GotUpdates, GotErrors)
+  item=${line#* }
 
-    case "$Got" in
-      NoUpdates) NoUpdates+=("$item") ;;
-      GotUpdates) GotUpdates+=("$item") ;;
-      GotErrors) GotErrors+=("$item") ;;
-      Skip) ;;
-      *) echo "Error! Unexpected output from subprocess: ${line}" ;;
-    esac
-  done < <( \
-    docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \
-    xargs -P 32 -I {} bash -c 'check_image "{}"' \
-  )
-fi
+  case "$Got" in
+    NoUpdates) NoUpdates+=("$item") ;;
+    GotUpdates) GotUpdates+=("$item") ;;
+    GotErrors) GotErrors+=("$item") ;;
+    Skip) ;;
+    *) echo "Error! Unexpected output from subprocess: ${line}" ;;
+  esac
+done < <( \
+  docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \
+  xargs -P 32 -I {} bash -c 'check_image "{}"' \
+)
 
 # Sort arrays alphabetically
 IFS=$'\n'

From 3e079e2ec51641d9d421e62ed77dc4944ca81f1c Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 24 Feb 2025 21:49:19 +0100
Subject: [PATCH 18/25] Update dockcheck.sh

Added MaxAsync variable.
Added POSIX xargs check.
Rewrote Excludes.
---
 dockcheck.sh | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 462e7e6..087138d 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -46,6 +46,7 @@ c_blue="\033[0;34m"
 c_teal="\033[0;36m"
 c_reset="\033[0m"
 
+MaxAsync=32
 Timeout=10
 Stopped=""
 while getopts "aynpfrhlisvmc:e:d:t:" options; do
@@ -285,13 +286,12 @@ fi
 check_image() {
   i="$1"
   local Excludes=($Excludes_string)
-  local skip
-  for e in "${Excludes[@]}" ; do [[ "$i" == "$e" ]] && skip=1 ; done
-
-  if [[ $skip -eq 1 ]]; then
-    echo Skip $i
-    return
-  fi
+  for e in "${Excludes[@]}" ; do 
+    if [[ "$i" == "$e" ]]; then
+      echo Skip $i
+      return
+    fi
+  done
 
   local NoUpdates GotUpdates GotErrors
   ImageId=$(docker inspect "$i" --format='{{.Image}}')
@@ -320,6 +320,14 @@ export -f check_image datecheck
 export Excludes_string="${Excludes[@]}" # Can only export scalar variables
 export t_out regbin RepoUrl DaysOld
 
+# Check for POSIX xargs with -P option, fallback without async 
+if (echo "test" | xargs -P 10 >/dev/null 2>&1)  ; then
+  XargsAsync="-P $MaxAsync"
+else
+  XargsAsync=""
+  printf "%bMissing POSIX xargs, consider installing 'findutils' for asynchronous lookups.%b\n" "$c_red" "$c_reset"
+fi
+
 # Asynchronously check the image-hash of every running container VS the registry
 while read -r line; do
   ((RegCheckQue+=1))
@@ -337,7 +345,7 @@ while read -r line; do
   esac
 done < <( \
   docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \
-  xargs -P 32 -I {} bash -c 'check_image "{}"' \
+  xargs ${XargsAsync} -I {} bash -c 'check_image "{}"' \
 )
 
 # Sort arrays alphabetically

From 229cde0efb4c2a61ab769472d5a48d6c795693b0 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 24 Feb 2025 22:03:20 +0100
Subject: [PATCH 19/25] Updated README.md

Added changelog.
Added info about Docker Hub pull limit.
---
 README.md | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 9a716f7..d1dea1d 100644
--- a/README.md
+++ b/README.md
@@ -16,14 +16,16 @@
 
 <h4 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
 
+<h4 align="center">:whale: Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks but for actual pulls - <a href="#whale-docker-hub-pull-limit-chart_with_downwards_trend-not-an-issue-for-checks-but-for-actual-pulls">read more</a></h4>
+
 ___
 ## :bell: Changelog
 
+- **v0.5.6.0**: Heavily improved performance due to async checking for updates. 
 - **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
 - **v0.5.4.0**: Added support for a Prometheus+node_exporter metric collection through a file collector.
 - **v0.5.3.0**: Local image check changed (use imageId instead of name) and Gotify-template fixed (whale icon removed).
 - **v0.5.2.1**: Rewrite of dependency downloads, jq can be installed with package manager or static binary.
-- **v0.5.1**: DEPENDENCY WARNING: now requires **jq**. + Upstreaming changes from [sudo-kraken/podcheck](https://github.com/sudo-kraken/podcheck)
 ___
 
 
@@ -77,6 +79,7 @@ ___
 ## :nut_and_bolt: Dependencies
 - Running docker (duh) and compose, either standalone or plugin. (see [Podman fork](https://github.com/sudo-kraken/podcheck)  
 - Bash shell or compatible shell of at least v4.3
+  - POSIX `xargs`, usually default but can be installed with the `findutils` package - to enable async.
 - [jq](https://github.com/jqlang/jq)
   - User will be prompted to install with package manager or download static binary.
 - [regclient/regctl](https://github.com/regclient/regclient) (Licensed under [Apache-2.0 License](http://www.apache.org/licenses/LICENSE-2.0))  
@@ -177,7 +180,15 @@ chmod 755 regctl
 ```
 Test it with `./regctl --help` and then either add the file to the same path as *dockcheck.sh* or in your path (eg. `~/.local/bin/regctl`).
 
-## :guardsman: Function to auth with docker hub before running
+## :whale: Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks but for actual pulls
+Due to recent changes in [Docker Hub usage and limits](https://docs.docker.com/docker-hub/usage/)
+>Unauthenticated users: 10 pulls/hour   
+>Authenticated users with a free account: 100 pulls/hour
+
+This is not an issue for registry checks. But if you have a large stack and pull more than 10 updates at once consider updating more often or to create a free account.
+You could use/modify the login-wrapper function in the example below to automate the login prior to running `dockcheck.sh`.
+
+### :guardsman: Function to auth with docker hub before running
 **Example** - Change names, paths, and remove cat+password flag if you rather get prompted:
 ```sh
 function dchk {

From 61f90893ef27542e0124af198af742b15257a488 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 24 Feb 2025 22:12:11 +0100
Subject: [PATCH 20/25] async version bump

---
 dockcheck.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 087138d..04fac69 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.5.5.0"
-### ChangeNotes: osx and bsd compatibility changes + rewrite of dependency installer
+VERSION="v0.5.6.0"
+### ChangeNotes: Heavily improved performance due to asynchronous update checks. 
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 

From 502a16791917add8545bb2fb4d785d1b8141ef6b Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 25 Feb 2025 21:30:20 +0100
Subject: [PATCH 21/25] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index d1dea1d..eb235fc 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@
 ___
 ## :bell: Changelog
 
-- **v0.5.6.0**: Heavily improved performance due to async checking for updates. 
+- **v0.5.6.0**: Heavily improved performance due to async checking for updates. Adjust the variable `MaxAsync=32` to something lower (or 1 ) if issues.
 - **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
 - **v0.5.4.0**: Added support for a Prometheus+node_exporter metric collection through a file collector.
 - **v0.5.3.0**: Local image check changed (use imageId instead of name) and Gotify-template fixed (whale icon removed).

From 8110cd88927716c622b666a1cbcebd83aa230c3d Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 25 Feb 2025 21:30:41 +0100
Subject: [PATCH 22/25] Update README.md

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index eb235fc..4cadd0c 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,8 @@
 ___
 ## :bell: Changelog
 
-- **v0.5.6.0**: Heavily improved performance due to async checking for updates. Adjust the variable `MaxAsync=32` to something lower (or 1 ) if issues.
+- **v0.5.6.0**: Heavily improved performance due to async checking for updates.
+    - Adjust the variable `MaxAsync=32` to something lower (or 1 ) if issues.
 - **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
 - **v0.5.4.0**: Added support for a Prometheus+node_exporter metric collection through a file collector.
 - **v0.5.3.0**: Local image check changed (use imageId instead of name) and Gotify-template fixed (whale icon removed).

From 8c3b899332ef56f5150925b80f34e8cf3e1beef5 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Wed, 26 Feb 2025 21:23:15 +0100
Subject: [PATCH 23/25] async hotfix, defaults to 1 subprocess, added -x option
 to set custom async value

---
 dockcheck.sh | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 04fac69..3ee7724 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -13,6 +13,10 @@ ScriptWorkDir="$(dirname "$ScriptPath")"
 LatestRelease="$(curl -s -r 0-50 $RawUrl | sed -n "/VERSION/s/VERSION=//p" | tr -d '"')"
 LatestChanges="$(curl -s -r 0-200 $RawUrl | sed -n "/ChangeNotes/s/# ChangeNotes: //p")"
 
+# User customizable defaults
+MaxAsync=1
+Timeout=10
+
 # Help Function
 Help() {
   echo "Syntax:     dockcheck.sh [OPTION] [part of name to filter]"
@@ -34,6 +38,7 @@ Help() {
   echo "-s     Include stopped containers in the check. (Logic: docker ps -a)."
   echo "-t     Set a timeout (in seconds) per container for registry checkups, 10 is default."
   echo "-v     Prints current version."
+  echo "-x N   Set max asynchronous subprocesses, 1 default, 0 to disable, 32+ tested."
   echo
   echo "Project source: $Github"
 }
@@ -46,10 +51,8 @@ c_blue="\033[0;34m"
 c_teal="\033[0;36m"
 c_reset="\033[0m"
 
-MaxAsync=32
-Timeout=10
 Stopped=""
-while getopts "aynpfrhlisvmc:e:d:t:" options; do
+while getopts "aynpfrhlisvmc:e:d:t:x:" options; do
   case "${options}" in
     a|y) AutoUp="yes" ;;
     c)   CollectorTextFileDirectory="${OPTARG}"
@@ -65,6 +68,7 @@ while getopts "aynpfrhlisvmc:e:d:t:" options; do
     s)   Stopped="-a" ;;
     t)   Timeout="${OPTARG}" ;;
     v)   printf "%s\n" "$VERSION" ; exit 0 ;;
+    x)   MaxAsync=${OPTARG} ;;
     d)   DaysOld=${OPTARG}
          if ! [[ $DaysOld =~ ^[0-9]+$ ]] ; then { printf "Days -d argument given (%s) is not a number.\n" "${DaysOld}" ; exit 2 ; } ; fi ;;
     h|*) Help ; exit 2 ;;
@@ -321,11 +325,11 @@ export Excludes_string="${Excludes[@]}" # Can only export scalar variables
 export t_out regbin RepoUrl DaysOld
 
 # Check for POSIX xargs with -P option, fallback without async 
-if (echo "test" | xargs -P 10 >/dev/null 2>&1)  ; then
+if (echo "test" | xargs -P 2 >/dev/null 2>&1) && [[ "$MaxAsync" != 0 ]]; then
   XargsAsync="-P $MaxAsync"
 else
   XargsAsync=""
-  printf "%bMissing POSIX xargs, consider installing 'findutils' for asynchronous lookups.%b\n" "$c_red" "$c_reset"
+  [[ "$MaxAsync" != 0 ]] && printf "%bMissing POSIX xargs, consider installing 'findutils' for asynchronous lookups.%b\n" "$c_red" "$c_reset"
 fi
 
 # Asynchronously check the image-hash of every running container VS the registry

From 9ef2ea71356e32eb787f9a42223d5fb99653dadc Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Wed, 26 Feb 2025 21:39:33 +0100
Subject: [PATCH 24/25] versionbump + changenotes

---
 dockcheck.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 3ee7724..6bb9006 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.5.6.0"
-### ChangeNotes: Heavily improved performance due to asynchronous update checks. 
+VERSION="v0.5.6.1"
+### ChangeNotes: Async hotfix, 1 subprocess default, modify MaxAsync variable or pass -x N option to increase.
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 

From bf1e78d2ff27364cb0267f3dfed2c9b31409e1eb Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Wed, 26 Feb 2025 22:04:05 +0100
Subject: [PATCH 25/25] hotfix changelog

---
 README.md | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 4cadd0c..9e9ab79 100644
--- a/README.md
+++ b/README.md
@@ -21,8 +21,15 @@
 ___
 ## :bell: Changelog
 
+Made MaxAsync=1 the default - edit to change.
+Added -x option to pass a MaxAsync value on runtime.
+Made it possible to disable xargs -P-flag by setting MaxAsync=0 or passing -x 0 option.
+
+- **v0.5.6.1**: Async xargs hotfix - due to errors `failed to request manifest head ... context canceled`
+    - Defaulted subprocess to 1 with `MaxAsync=1`, increase to find a stable value in your environment.
+    - Added `-x N` option to pass `MaxAsync` value at runtime.
+    - To disable xargs `-P` flag (max processes) all together, set `MaxAsync` to 0.
 - **v0.5.6.0**: Heavily improved performance due to async checking for updates.
-    - Adjust the variable `MaxAsync=32` to something lower (or 1 ) if issues.
 - **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
 - **v0.5.4.0**: Added support for a Prometheus+node_exporter metric collection through a file collector.
 - **v0.5.3.0**: Local image check changed (use imageId instead of name) and Gotify-template fixed (whale icon removed).