Merge pull request #85 from timholy/teh/no_display

Don't launch ProfileGtk if there is no display available

.travis.yml

@@ -3,6 +3,7 @@ os:
   - linux
 julia:
   - 0.5
+  - 0.6
   - nightly
 notifications:
   email: false

src/ProfileView.jl

@@ -35,9 +35,15 @@ const colors = distinguishable_colors(13, [bkg,fontcolor,gccolor],
                                       cchoices=Float64[0, 50, 60, 70],
                                       hchoices=linspace(0, 330, 24))[4:end]
 
+function have_display()
+    !is_unix() && return true
+    is_apple() && return true
+    return haskey(ENV, "DISPLAY")
+end
+
 function __init__()
     push!(LOAD_PATH, splitdir(@__FILE__)[1])
-    if isdefined(Main, :IJulia) && !isdefined(Main, :PROFILEVIEW_USEGTK)
+    if (isdefined(Main, :IJulia) && !isdefined(Main, :PROFILEVIEW_USEGTK)) || !have_display()
         eval(Expr(:import, :ProfileViewSVG))
         @eval begin
             view(data = Profile.fetch(); C = false, lidict = nothing, colorgc = true, fontsize = 12, combine = true, pruned = []) = ProfileViewSVG.view(data; C=C, lidict=lidict, colorgc=colorgc, fontsize=fontsize, combine=combine, pruned=pruned)