bash: Fix 50-prompt.sh to work with zsh as well as bash

Also fix method of getting shell to get current, not default

**Summary**

packages/b/bash/files/profile/50-prompt.sh

@@ -1,24 +1,53 @@
 # Begin /usr/share/defaults/etc/profile.d/50-prompt.sh
 
+# We cant use $SHELL since we need the *current* shell.
+# The user may switch to a different shell than their default
+# e.g. $SHELL is zsh but user switches to bash temporarily
+
+current_shell=$(readlink /proc/$$/exe)
+
 endchar="\$"
 if [ "$UID" = "0" ]; then
     endchar="#"
+elif [[ "$current_shell" =~ zsh ]]; then
+    endchar='%'
 fi
 
-FG="\[\033[38;5;081m\]"
-BG="\[\033[38;5;245m\]"
-AT="\[\033[38;5;245m\]"
-HCOLOR="\[\033[38;5;206m\]"
+# Prefer tput to ANSI codes since they work with bash and zsh
+# and are much easier to read
+grey=$(tput setaf 245)
+pink=$(tput setaf 206)
+cyan=$(tput setaf 81)
+reset_color=$(tput sgr0)
 
-PS1="${FG}\u${AT}@${HCOLOR}\H ${BG}\w ${FG}$endchar \[\e[0m\]"
+FG=$cyan
+DIR=$grey
+AT=$grey
+HCOLOR=$pink
+
+# bash and zsh handle prompt setup and character escaping differently
+
+if [[ "$current_shell" =~ bash ]]; then
+    PS1="\[${FG}\]\u\[${AT}\]@\[${HCOLOR}\]\H \[${DIR}\]\w \[${FG}\]$endchar \[${reset_color}\]"
+elif [[ "$current_shell" =~ zsh ]]; then
+    PS1="%{${FG}%}%n%{${AT}%}@%{${HCOLOR}%}%m %{${DIR}%}%1~ %{${FG}%}$endchar# ${reset_color}"
+fi
 
 unset FG
 unset BG
 unset AT
 unset HCOLOR
+unset grey
+unset pink
+unset cyan
+unset reset_color
+unset endchar
+
 # shopt is bash only
-if [ $SHELL = "/usr/bin/bash" ]; then
+if [[ "$current_shell" =~ bash ]]; then
     shopt -s checkwinsize
 fi
 
+unset current_shell
+
 # End /usr/share/defaults/etc/profile.d/50-prompt.sh

packages/b/bash/pspec_x86_64.xml

@@ -202,7 +202,7 @@
     </Package>
     <History>
         <Update release="85">
-            <Date>2024-11-12</Date>
+            <Date>2025-01-03</Date>
             <Version>5.2.37</Version>
             <Comment>Packaging update</Comment>
             <Name>Tracey Clark</Name>

packages/z/zsh/package.yml

@@ -46,6 +46,9 @@ install    : |
         ln -srv $installdir/usr/bin/$FILE $installdir/bin/$FILE
     done
     popd
+
+    # Install defaults to /etc/skel
+    install -Dm0644 -t $installdir/etc/skel $pkgfiles/skel/.zshrc
 check      : |
     unset LD_PRELOAD
     %make check

packages/z/zsh/pspec_x86_64.xml

@@ -22,6 +22,7 @@
         <Files>
             <Path fileType="executable">/bin/zsh</Path>
             <Path fileType="executable">/bin/zsh-5.9</Path>
+            <Path fileType="config">/etc/skel/.zshrc</Path>
             <Path fileType="executable">/usr/bin/zsh</Path>
             <Path fileType="executable">/usr/bin/zsh-5.9</Path>
             <Path fileType="library">/usr/lib64/zsh/5.9/zsh/attr.so</Path>
@@ -1398,7 +1399,7 @@
     </Package>
     <History>
         <Update release="35">
-            <Date>2024-11-12</Date>
+            <Date>2025-01-01</Date>
             <Version>5.9</Version>
             <Comment>Packaging update</Comment>
             <Name>Tracey Clark</Name>