first commit

plugins/coinmarketcap/README.md

@@ -0,0 +1,19 @@
+# Unofficial Cryptocurrency Market Capitalizations coinmarketcap.com
+
+[coinmarketcap](https://coinmarketcap.com) plugin — Market Capitalization is one way to rank the relative size of a cryptocurrency. It's calculated by multiplying the Price by the Circulating Supply. 
+
+## Usage
+
+For Bitcoin Gold
+```
+coin BTG
+```
+
+For all currencies
+```
+coin ALL
+```
+
+## Dependencies
+commands like awk, grep and curl need to be in the $PATH
+Tested in Linux and MacOs

plugins/coinmarketcap/coinmarketcap.plugin.zsh

@@ -0,0 +1,36 @@
+
+# Displays the current USD value of crypto coins from the api.coinmarketcap.com
+#
+# See README.md for details
+
+function coinmarketcap() {
+  curl -s https://api.coinmarketcap.com/v1/ticker/ > $HOME/.coinmarketcap.json
+  curl -s https://api.coinmarketcap.com/v1/ticker/bitcoin-gold/ > $HOME/.coinmarketcap-btg.json
+  if [[ -n "$1" ]]; then
+    coin=$1
+    symbols=(`cat $HOME/.coinmarketcap.json | grep -Po '(?<="symbol": ")[^"]*' | awk -F "\n" '{print $1}'`)
+    price=(`cat $HOME/.coinmarketcap.json | grep -Po '(?<="price_usd": ")[^"]*' | awk -F "\n" '{print $1}'`)
+    if [[ "${coin}" == "ALL" ]]; then
+      for ((i=0; i<${#symbols[*]}; i++));
+      do
+        echo -e ${symbols[i]}"\t : \t"${price[i]}
+      done
+    elif [[ "${coin}" == "BTG" ]]; then
+      btg_symbols=(`cat $HOME/.coinmarketcap-btg.json | grep -Po '(?<="symbol": ")[^"]*'`)
+      btg_price=(`cat $HOME/.coinmarketcap-btg.json | grep -Po '(?<="price_usd": ")[^"]*'`)
+      echo -e ${btg_price}
+    else
+      for ((i=0; i<${#symbols[*]}; i++));
+      do
+          if [[ "${symbols[i]}" == "${coin}" ]]; then
+            echo -e ${price[i]}
+          fi
+      done
+    fi
+  else
+    echo "Usage example for Bitcoin Gold: \"coin BTG\""
+    echo "Usage example all crypto currencies: \"coin ALL\""
+  fi
+}
+
+alias coin=coinmarketcap