Fix AOT tests for PackageCompiler 1.x (JuliaPy#768)

* Fix AOT tests for PackageCompiler 1.x

* Make sure PyCall is compiled into aot/sys.so

.travis.yml

@@ -49,14 +49,15 @@ matrix:
 # https://github.com/pytest-dev/pytest/pull/3893
 
     - &test-aot
-      name: "AOT (Julia: 1.0)"
+      name: "AOT (Julia: 1.4)"
       language: julia
       os: linux
       env: PYTHON=python3
-      julia: 1.0
+      julia: 1.4
       script:
-        - julia --color=yes -e 'using Pkg; Pkg.add("PackageCompiler")'
+        - julia --color=yes -e 'using Pkg; pkg"add PackageCompiler@1"'
         - julia --color=yes aot/compile.jl
+        - aot/assert_has_pycall.jl
         - aot/runtests.sh
       after_success: skip
     - {<<: *test-aot, name: "AOT (Julia: nightly)", julia: nightly}

aot/assert_has_pycall.jl

@@ -0,0 +1,14 @@
+#!/bin/bash
+# -*- mode: julia -*-
+#=
+thisdir="$(dirname "${BASH_SOURCE[0]}")"
+exec "$thisdir/julia.sh" --startup-file=no "$@" ${BASH_SOURCE[0]}
+=#
+
+pkgid = Base.PkgId(Base.UUID("438e738f-606a-5dbb-bf0a-cddfbfd45ab0"), "PyCall")
+sysimage_path = unsafe_string(Base.JLOptions().image_file)
+if haskey(Base.loaded_modules, pkgid)
+    @info "PyCall is compiled in: `$(sysimage_path)`"
+else
+    error("PyCall is not compiled in: ", sysimage_path)
+end

aot/compile.jl

@@ -4,22 +4,23 @@
 exec "${JULIA:-julia}" "$@" ${BASH_SOURCE[0]}
 =#
 
+using Libdl
+using PackageCompiler
 using Pkg
+
 Pkg.activate(@__DIR__)
-Pkg.add("MacroTools")
 Pkg.develop(PackageSpec(name="PyCall", path=dirname(@__DIR__)))
 Pkg.build("PyCall")
 Pkg.activate()
 
-using PackageCompiler
-sysout, _curr_syso = compile_incremental(
-    joinpath(@__DIR__, "Project.toml"),
-    joinpath(@__DIR__, "precompile.jl"),
+sysimage_path = joinpath(@__DIR__, "sys.$(Libdl.dlext)")
+create_sysimage(
+    [:PyCall],
+    sysimage_path = sysimage_path,
+    project = @__DIR__(),
+    precompile_execution_file = joinpath(@__DIR__, "precompile.jl"),
 )
 
-pysysout = joinpath(@__DIR__, basename(sysout))
-cp(sysout, pysysout, force=true)
-
 write(joinpath(@__DIR__, "_julia_path"), Base.julia_cmd().exec[1])
 
-@info "System image: $pysysout"
+@info "System image: $sysimage_path"

aot/precompile.jl

@@ -1,18 +1,4 @@
-# Activate ./Project.toml.  Excluding `"@v#.#"` from `Base.LOAD_PATH`
-# to make compilation more reproducible.
-using Pkg
-empty!(Base.LOAD_PATH)
-append!(Base.LOAD_PATH, ["@", "@stdlib"])
-Pkg.activate(@__DIR__)
-
-# Manually invoking `__init__` to workaround:
-# https://github.com/JuliaLang/julia/issues/22910
-
-import MacroTools
-isdefined(MacroTools, :__init__) && MacroTools.__init__()
-
 using PyCall
-PyCall.__init__()
 PyCall.pyimport("sys")[:executable]
 
 has_numpy = try