[__package_pip] detect pip binary

cdist/conf/type/__package_pip/explorer/pip

@@ -0,0 +1,10 @@
+#!/bin/sh -e
+
+for bin in pip3 pip
+do
+    if check="$( command -v "$bin" )"
+    then
+        echo "$check"
+        break
+    fi
+done

cdist/conf/type/__package_pip/explorer/state

@@ -32,7 +32,7 @@ pipparam="$__object/parameter/pip"
 if [ -f "$pipparam" ]; then
     pip=$(cat "$pipparam")
 else
-    pip="pip"
+    pip="$( "$__type_explorer/pip" )"
 fi
 
 # If there is no pip, it may get created from somebody else.

cdist/conf/type/__package_pip/gencode-remote

@@ -38,7 +38,12 @@ pipparam="$__object/parameter/pip"
 if [ -f "$pipparam" ]; then
     pip=$(cat "$pipparam")
 else
-    pip="pip"
+    pip="$( cat "$__object/explorer/pip" )"
+    if [ -z "$pip" ]
+    then
+        echo 'pip not found in path' >&2
+        exit 1
+    fi
 fi
 
 runasparam="$__object/parameter/runas"