added first pass to fork

plugins/history-sync/README.md

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+## An oh-my-zsh plugin for gpg encrypted, internet synchronized zsh history using git.
+<br />
+That is, if you'd like an easy way to securely synchronise your zsh_history across many computers connected to the internet, this plugin will help you. You could even automate it using something like cron for a daily or even hourly sync.
+
+### How do I  use it?
+
+1. Create a git repo for housing your encrypted zsh_history file (local or remote)
+   - Mine is $HOME/.zsh_history_proj
+2. Activate history-sync plugin in your .zshrc
+   - git clone git@github.com:wulfgarpro/history-sync.git $HOME/.oh-my-zsh/plugins/.
+3. Export environment variables (or use defaults found in history-sync.plugin.zsh)
+   <br />These are:
+   - ZSH_HISTORY_FILE
+   - ZSH_HISTORY_PROJ
+   - ZSH_HISTORY_FILE_ENC
+   - GIT_COMMIT_MSG
+4. Ensure your gpg/pgp setup is complete and you have a public/private key pair
+   <br /> i.e.:
+   - gpg --list-keys
+5. Run zhpl alias to pull
+6. Run zhps alias to push
+7. Run zhsync to pull/push
+

plugins/history-sync/history-sync.plugin.zsh

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+###
+# James Fraser
+# <wulfgar.pro@gmail.com>
+###
+
+autoload -U colors
+colors
+
+ZSH_HISTORY_FILE=$HOME/.zsh_history
+ZSH_HISTORY_PROJ=$HOME/.zsh_history_proj
+ZSH_HISTORY_FILE_ENC=$ZSH_HISTORY_PROJ/zsh_history
+GIT_COMMIT_MSG="latest $(date)"
+
+function print_git_error_msg() {
+  echo "$bold_color$fg[red]Fix your git repo...${reset_color}";
+}
+
+function print_gpg_encrypt_error_msg() {
+  echo "$bold_color$fg[red]GPG failed to encrypt history file... exiting.${reset_color}"; 
+}
+
+function print_gpg_decrypt_error_msg() {
+  echo "$bold_color$fg[red]GPG failed to decrypt history file... exiting.${reset_color}"; 
+}
+
+# Pull current master and merge with .zsh_history
+function history_sync_pull() {
+  cp -a $HOME/{.zsh_history,.zsh_history.backup}
+  DIR=$CWD
+  cd $ZSH_HISTORY_PROJ && git pull
+  if [[ $? != 0 ]]; then
+    print_git_error_msg
+    cd $DIR
+    return
+  fi
+
+  # Decrypt
+  gpg --output zsh_history_decrypted --decrypt zsh_history
+  if [[ $? != 0 ]]; then
+    print_gpg_decrypt_error_msg
+    cd $DIR
+    return
+  fi
+
+  # Merge using sort unique
+  cat $HOME/.zsh_history zsh_history_decrypted | sort -u > $HOME/.zsh_history 
+  rm zsh_history_decrypted
+  cd $DIR
+}
+
+# Push current history to master
+function history_sync_push() {
+  echo -n "Please enter GPG recipient name: "
+  read name
+
+# Encrypt
+  if [[ -n $name ]]; then
+    gpg -v -r $NAME --encrypt --sign --armor --output $ZSH_HISTORY_FILE_ENC $ZSH_HISTORY_FILE
+    if [[ $? != 0 ]]; then
+      print_gpg_encrypt_error_msg
+      return
+    fi
+
+    echo -n "$bold_color$fg[yellow]Do you want to commit current local history file? ${reset_color}"
+    read commit    
+    if [[ -n $commit ]]; then
+      case $commit in
+        [Yy]* ) 
+          DIR=$CWD
+          cd $ZSH_HISTORY_PROJ && git add * && git commit -am $GIT_COMMIT_MSG
+          echo -n "$bold_color$fg[yellow]Do you want to push to remote? ${reset_color}"
+          read push
+          if [[ -n $push ]]; then
+            case $push in
+              [Yy]* )
+                git push                            
+                if [[ $? != 0 ]]; then 
+                  print_git_error_msg
+                  cd $DIR
+                  return
+                fi
+                cd $DIR
+              ;;
+            esac
+          fi
+
+          if [[ $? != 0 ]]; then 
+            print_git_error_msg
+            cd $DIR
+            return
+          fi
+        ;;
+        [Nn]* )
+        ;;
+        * )
+        ;;
+      esac          
+    fi
+  fi
+}
+
+alias zhpl=history_sync_pull
+alias zhps=history_sync_push
+alias zhsync="history_sync_pull && history_sync_push"
+