use pre-built libxml2 binaries (#45)

Author: bicycle1885

.gitignore

@@ -1,5 +1,7 @@
 *.jl.cov
 *.jl.*.cov
 *.jl.mem
+/deps/deps.jl
+/deps/usr/
 /docs/build/
 /docs/site/

REQUIRE

@@ -1,2 +1,2 @@
 julia 0.6
-@windows WinRPM
+BinaryProvider 0.1

deps/build.jl

@@ -1,4 +1,40 @@
-if isdefined(Sys, :iswindows) ? Sys.iswindows() : is_windows()
-    using WinRPM
-    WinRPM.install("libxml2-2", yes=true)
+using BinaryProvider
+
+# This is where all binaries will get installed
+prefix = Prefix(!isempty(ARGS) ? ARGS[1] : joinpath(@__DIR__, "usr"))
+
+# Instantiate products here.  Examples:
+libxml2 = LibraryProduct(prefix, "libxml2")
+
+# Assign products to `products`:
+products = [libxml2]
+
+# Download binaries from hosted location
+bin_prefix = "https://github.com/bicycle1885/XML2Builder/releases/download/v1.0.0"
+
+# Listing of files generated by BinaryBuilder:
+download_info = Dict(
+    BinaryProvider.Linux(:aarch64, :glibc)     => ("$bin_prefix/XML2Builder.aarch64-linux-gnu.tar.gz", "cc64013edbf308f1d26e02b05b29c2072545276122884024a2e79871c4f23be6"),
+    BinaryProvider.Linux(:armv7l, :glibc)      => ("$bin_prefix/XML2Builder.arm-linux-gnueabihf.tar.gz", "08c1b599aeda68e1783479b147e68a79224167ba4f693f431d02f734523b11a5"),
+    BinaryProvider.Linux(:i686, :glibc)        => ("$bin_prefix/XML2Builder.i686-linux-gnu.tar.gz", "f6a076cfa78cc04f782428e23f1492b8c583fcf3d177a1b7eea206721666cecb"),
+    BinaryProvider.Linux(:powerpc64le, :glibc) => ("$bin_prefix/XML2Builder.powerpc64le-linux-gnu.tar.gz", "2c04d6dd67107b933ed5fb2b2afd50892b6f3a94bdf2412604a49654f033947b"),
+    BinaryProvider.Linux(:x86_64, :glibc)      => ("$bin_prefix/XML2Builder.x86_64-linux-gnu.tar.gz", "d3125723e5c75ded1eb01e5ce06c7dfae149ee276aa2d3f82a64edb2e8df23b8"),
+    BinaryProvider.MacOS()                     => ("$bin_prefix/XML2Builder.x86_64-apple-darwin14.tar.gz", "c29fc38446b74830ce26d135974cc5043b636e0fe350bfa0e26e166edcebd7b7"),
+    BinaryProvider.Windows(:i686)              => ("$bin_prefix/XML2Builder.i686-w64-mingw32.tar.gz", "d09490cc615b541c236485b170007911587501ee8c3a3e3edc8d054e5412553c"),
+    BinaryProvider.Windows(:x86_64)            => ("$bin_prefix/XML2Builder.x86_64-w64-mingw32.tar.gz", "37f5b9d4df9e919a196dacbc2ede80b75a3aae7058890701958925336d145fb6"),
+)
+if platform_key() in keys(download_info)
+    # First, check to see if we're all satisfied
+    if any(!satisfied(p; verbose=true) for p in products)
+        # Download and install binaries
+        url, tarball_hash = download_info[platform_key()]
+        install(url, tarball_hash; prefix=prefix, force=true, verbose=true)
+    end
+
+    # Finally, write out a deps.jl file that will contain mappings for each
+    # named product here: (there will be a "libxml2" variable and a "xml2ifier"
+    # variable, etc...)
+    @write_deps_file libxml2
+else
+    error("Your platform $(Sys.MACHINE) is not supported by this package!")
 end

src/EzXML.jl

@@ -95,11 +95,13 @@ export
     nodedepth,
     expandtree
 
-if isdefined(Sys, :iswindows) ? Sys.iswindows() : is_windows()
-    const libxml2 = Pkg.dir("WinRPM","deps","usr","$(Sys.ARCH)-w64-mingw32","sys-root","mingw","bin","libxml2-2")
-else
-    const libxml2 = "libxml2"
+# Load libxml2.
+const libxml2path = joinpath(dirname(@__FILE__), "..", "deps", "deps.jl")
+if !isfile(libxml2path)
+    error("EzXML.jl is not installed properly, run Pkg.build(\"EzXML\") and restart Julia.")
 end
+include(libxml2path)
+check_deps()
 
 if VERSION > v"0.7.0-DEV.3052"
     import Printf: @printf