better java handling

exports.sh

@@ -20,9 +20,6 @@ export DOTFILES="$HOME/.dotfiles"
 export MANPATH="$HOME/.dotfiles/man:$MANPATH"
 export LDFLAGS="-L/opt/homebrew/opt/flex/lib"
 export CPPFLAGS="-I/opt/homebrew/opt/flex/include"
-export JAVA_8_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_321.jdk/Contents/Home/"
-export JAVA_11_HOME="/Library/Java/JavaVirtualMachines/jdk-11.0.12.jdk/Contents/Home/"
-export JAVA_17_HOME="/Library/Java/JavaVirtualMachines/jdk-17.0.1.jdk/Contents/Home/"
 export ANDROID_HOME="$HOME/Library/Android/sdk"
 
 # Ruby User Install (for CocoaPods)

home.sh

@@ -47,7 +47,11 @@ __home_do_install() {
 __home_print_help() {
   __home_prepare_dir -q
 
-  man ./man_src/home.7
+  if [[ "$1" == "0" ]]; then
+    man -P cat ./man_src/home.7
+  else
+    man ./man_src/home.7
+  fi
 
   __home_revert_dir -q
 }
@@ -64,9 +68,16 @@ home() {
 
   if [[ $# -gt 0 ]]; then
     case "$1" in
+    git)
+      __home_prepare_dir
+      shift
+      git $@
+      __home_revert_dir
+      ;;
     pull)
       __home_prepare_dir
       git pull
+      reload-zsh
       __home_revert_dir
       ;;
     push)

man_src/home.7

@@ -16,9 +16,11 @@ before running the supplied command
 .SH OPTIONS
 home takes one command:
 
-    push            Push updates to git
+    git             Run arbitrary git commands from .dotfiles directory
 
-    pull            Pull updates from git
+    push            Add all files, commit and push updates to git
+
+    pull            Pull updates from git and reload
 
     reload, rl      Reload (source) the current shell
 

scripts/java.sh

@@ -1,33 +1,62 @@
+#!/usr/bin/env bash
+
 java() {
-  echo $JAVA_HOME
   $JAVA_HOME/bin/java $@
 }
 
 jver_file="$HOME/.jver"
 
+__list_jvers__() {
+  ls /Library/Java/JavaVirtualMachines
+}
+
 jver() {
   ver="$1"
+
+  if [[ "$ver" == "list" ]]; then
+    echo
+    echo_cyan "All installed versions on this machine:"
+    echo
+    __list_jvers__ | tr " " "\n"
+    echo
+    echo_yellow 'You can use "jver [version]" to switch to the required version.'
+    echo_yellow 'Supplying the [version] is done via grep, so can support partial matches or patterns.'
+    echo_yellow 'For example, "jver 17" will match correctly for "jdk-17.0.2.jdk"'
+    return 0
+  fi
+
   quiet="$2"
   if [[ $ver == "" ]]; then
     echo "No version supplied. Usage: jver [version]"
     return 1
   fi
 
-  found=$(eval "echo \$JAVA_${ver}_HOME")
+  count=$(__list_jvers__ | grep -i $ver -c)
+  found=$(__list_jvers__ | grep -i $ver)
 
-  if [[ "$found" == "" ]]; then
-    echo "Version $ver not found"
-    echo "Possible versions are:"
-    env | grep -E 'JAVA_[0-9]+_HOME'
-    echo "(use only the number, e.g. 8)"
+  if [[ $count -gt 1 ]]; then
+    echo_red "Multiple versions found:"
+    echo
+    echo_red $found | tr " " "\n"
+    echo
+    echo_red "Please use a more specific pattern so that only one result matches"
     return 2
   fi
 
-  export JAVA_HOME="$found"
+  if [[ "$found" == "" ]]; then
+    echo_red "Version $ver not found"
+    echo_yellow "Possible versions are:"
+    env | grep -E 'JAVA_[0-9]+_HOME'
+    echo_yellow "(use only the number, e.g. 8)"
+    return 2
+  fi
+
+  export JAVA_HOME="/Library/Java/JavaVirtualMachines/$found/Contents/Home"
   touch $jver_file
-  echo $ver >$jver_file
+  echo $found >$jver_file
   if [[ $quiet != '-q' ]]; then
-    echo "JAVA_HOME=$found"
+    echo_cyan "Found version: $found"
+    echo
     java -version
   fi
 }