use latest build and BinaryProvider (#49)

* use latest build and BinaryProvider

The latest BinaryProvider allows updating already installed tarballs, and writes an updated `build.jl` such that I can use it as a dependency for `GDALBuilder`.
The build configuration itself did not change however. But still new hashes, a later BinaryBuilder was used to create them.

* use the build script as generated

* Upgrade to build 2, build product names clashed with package

REQUIRE

@@ -1,3 +1,3 @@
 julia 0.6
 GeoInterface 0.2.1
-BinaryProvider 0.2.5
+BinaryProvider 0.3.0

deps/build.jl

@@ -1,39 +1,42 @@
-using BinaryProvider
+using BinaryProvider # requires BinaryProvider 0.3.0 or later
 
 # Parse some basic command-line arguments
 const verbose = "--verbose" in ARGS
 const prefix = Prefix(get([a for a in ARGS if a != "--verbose"], 1, joinpath(@__DIR__, "usr")))
-
-products = Product[
-    LibraryProduct(prefix, "libgeos_c", :libgeos),
-    LibraryProduct(prefix, "libgeos", :libgeos_cpp) 
+products = [
+    LibraryProduct(prefix, String["libgeos_c"], :libgeos),
+    LibraryProduct(prefix, String["libgeos"], :libgeos_cpp),
 ]
 
 # Download binaries from hosted location
-bin_prefix = "https://github.com/JuliaGeo/GEOSBuilder/releases/download/v3.6.2-0"
+bin_prefix = "https://github.com/JuliaGeo/GEOSBuilder/releases/download/v3.6.2-2"
 
 # Listing of files generated by BinaryBuilder:
 download_info = Dict(
-    Linux(:i686, :glibc)    => ("$bin_prefix/GEOS.i686-linux-gnu.tar.gz", "b8569ca5dd4a1aec464ae2eaec4247ea5a93f55bb843854cab09f06952c4fcd9"),
-    Linux(:x86_64, :glibc)  => ("$bin_prefix/GEOS.x86_64-linux-gnu.tar.gz", "a9f58321ff86ca05c87ec637cc6126ba5db313337491123b76b4ca7e7705223b"),
-    Linux(:aarch64, :glibc) => ("$bin_prefix/GEOS.aarch64-linux-gnu.tar.gz", "c91616f06f03d64d9b7e06dd74b6056815e0e54e74a9af8288e4d0cd79929d6e"),
-    Linux(:armv7l, :glibc)  => ("$bin_prefix/GEOS.arm-linux-gnueabihf.tar.gz", "5ab9b9b92319daf7c08db63e711fea5724946c973a38307b33f61b49a8e93531"),
-    Linux(:powerpc64le, :glibc) => ("$bin_prefix/GEOS.powerpc64le-linux-gnu.tar.gz", "e24c68a8e5cd517fae4ca089bd66ee2081aef5e1b492fc0835accdc112995ad6"),
-    MacOS()                 => ("$bin_prefix/GEOS.x86_64-apple-darwin14.tar.gz", "017c593d91806578538d8dbdeefa9f2b88700e06c32cc07be52cdbe78f55390d"),
-    Windows(:i686)          => ("$bin_prefix/GEOS.i686-w64-mingw32.tar.gz", "f3fa4db98b50821db2b7209de76b0ac31d4d87c4d9bbbab60a6adb5f19ca0155"),
-    Windows(:x86_64)        => ("$bin_prefix/GEOS.x86_64-w64-mingw32.tar.gz", "9e8cba2c107884d1380bd6e5a6fce1003b6fa50be59e689b0a9bbe014d46d3ac"),
+    Linux(:aarch64, :glibc) => ("$bin_prefix/GEOS.aarch64-linux-gnu.tar.gz", "bdd07a586bfd952f92ac939e5372b651af16982b542a27252ca5704c3c73dbd7"),
+    Linux(:armv7l, :glibc, :eabihf) => ("$bin_prefix/GEOS.arm-linux-gnueabihf.tar.gz", "94bb0679bb6a02b5a75a6c2727053816ed4edf8678df89dc3637d62fcd23ae21"),
+    Linux(:i686, :glibc) => ("$bin_prefix/GEOS.i686-linux-gnu.tar.gz", "bb4e67f8a9b81eca7edf6f41c1eaddaf171398810a2b2cd0b6d272b96550ec57"),
+    Windows(:i686) => ("$bin_prefix/GEOS.i686-w64-mingw32.tar.gz", "c3e2e8867d7af852dd5696d0eabe87449fce29853c7fa4b8e809cb86f1e4bcec"),
+    Linux(:powerpc64le, :glibc) => ("$bin_prefix/GEOS.powerpc64le-linux-gnu.tar.gz", "8ea4bce7bc613c4f4a7541173844b12e1ba6d18836e7b09955cf5503a49de3c8"),
+    MacOS(:x86_64) => ("$bin_prefix/GEOS.x86_64-apple-darwin14.tar.gz", "93eecb3f0a0336feb46b8bb899684d50b9025b7e4703dfca81e7ea10eb021d2b"),
+    Linux(:x86_64, :glibc) => ("$bin_prefix/GEOS.x86_64-linux-gnu.tar.gz", "602f759fa580346f59f4b50713e82621ac34ddb397a69ef608b24ab6761223ce"),
+    Windows(:x86_64) => ("$bin_prefix/GEOS.x86_64-w64-mingw32.tar.gz", "b3d1713345a73b230065281ebccd7867d952b5369ae64da2919b05b9c40e248a"),
 )
 
-# First, check to see if we're all satisfied
-if any(!satisfied(p; verbose=verbose) for p in products)
-    if platform_key() in keys(download_info)
+# Install unsatisfied or updated dependencies:
+unsatisfied = any(!satisfied(p; verbose=verbose) for p in products)
+if haskey(download_info, platform_key())
+    url, tarball_hash = download_info[platform_key()]
+    if unsatisfied || !isinstalled(url, tarball_hash; prefix=prefix)
         # Download and install binaries
-        url, tarball_hash = download_info[platform_key()]
-        install(url, tarball_hash; prefix=prefix, force=true, verbose=true)
-    else
-        error("Your platform $(Sys.MACHINE) is not supported by this package!")
+        install(url, tarball_hash; prefix=prefix, force=true, verbose=verbose)
     end
-
-    # Finally, write out a deps.jl file
-    write_deps_file(joinpath(@__DIR__, "deps.jl"), products)
+elseif unsatisfied
+    # If we don't have a BinaryProvider-compatible .tar.gz to download, complain.
+    # Alternatively, you could attempt to install from a separate provider,
+    # build from source or something even more ambitious here.
+    error("Your platform $(triplet(platform_key())) is not supported by this package!")
 end
+
+# Write out a deps.jl file that will contain mappings for our products
+write_deps_file(joinpath(@__DIR__, "deps.jl"), products)