From d4ccf0ec624bbbaf2ab613f623121ded716d6a9e Mon Sep 17 00:00:00 2001
From: Thomas Breloff <tom@breloff.com>
Date: Sat, 23 Apr 2016 09:04:02 -0400
Subject: [PATCH] PLOTS_DEFAULT_BACKEND env variable; closes #200

---
 src/backends.jl        | 28 ++++++++++++++++++++++------
 src/backends/pyplot.jl |  2 +-
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/src/backends.jl b/src/backends.jl
index ed99f38d..4e47d6a0 100644
--- a/src/backends.jl
+++ b/src/backends.jl
@@ -64,14 +64,30 @@ CurrentBackend(sym::Symbol) = CurrentBackend(sym, _backend_instance(sym))
 # ---------------------------------------------------------
 
 function pickDefaultBackend()
-  for pkgstr in ("PyPlot", "Immerse", "Qwt", "Gadfly", "GR", "UnicodePlots", "Bokeh", "GLVisualize")
-    if Pkg.installed(pkgstr) != nothing
-      return backend(symbol(lowercase(pkgstr)))
+    env_default = get(ENV, "PLOTS_DEFAULT_BACKEND", "")
+    if env_default != ""
+        try
+            Pkg.installed(env_default)  # this will error if not installed
+            sym = symbol(lowercase(env_default))
+            if haskey(_backendType, sym)
+                return backend(sym)
+            else
+                warn("You have set PLOTS_DEFAULT_BACKEND=$env_default but it is not a valid backend package.  Choose from:\n\t",
+                     join(sort(_backends), "\n\t"))
+            end
+        catch
+            warn("You have set PLOTS_DEFAULT_BACKEND=$env_default but it is not installed.")
+        end
     end
-  end
 
-  # the default if nothing else is installed
-  backend(:plotly)
+    for pkgstr in ("PyPlot", "Immerse", "Qwt", "Gadfly", "GR", "UnicodePlots", "Bokeh", "GLVisualize")
+        if Pkg.installed(pkgstr) != nothing
+            return backend(symbol(lowercase(pkgstr)))
+        end
+    end
+
+    # the default if nothing else is installed
+    backend(:plotly)
 end
 
 
diff --git a/src/backends/pyplot.jl b/src/backends/pyplot.jl
index c9cdcad8..2eb177ca 100644
--- a/src/backends/pyplot.jl
+++ b/src/backends/pyplot.jl
@@ -371,7 +371,7 @@ function _add_series(pkg::PyPlotBackend, plt::Plot, d::KW)
 
     # cmap = get_cmap(plt, d)
 
-    dumpdict(d, "",true)
+    # dumpdict(d, "",true)
 
     # handle zcolor and get c/cmap
     # extra_kw = get_extra_kw(plt, d)