WIP: prep for continuous integration

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: CI
+on:
+  push:
+    branches: [master]
+  pull_request:
+    types: [opened, synchronize, reopened]
+jobs:
+  test:
+    name: 'Gurobi'
+    runs-on: 'ubuntu-latest'
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: '1'
+          arch: 'x64'
+      - uses: actions/cache@v1
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v1
+        with:
+          file: lcov.info

Artifacts.toml

@@ -0,0 +1,6 @@
+[gurobi912linux64]
+git-tree-sha1 = "6b65d6a3f5bd9057ae37e58d0a23562f5b05304a"
+
+    [[gurobi912linux64.download]]
+    url = "https://packages.gurobi.com/9.1/gurobi9.1.2_linux64.tar.gz"
+    sha256 = "7f60bd675f79476bb2b32cd632aa1d470f8246f2b033b7652d8de86f6e7e429b"

Project.toml

@@ -11,7 +11,7 @@ MathOptInterface = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
 [compat]
 CEnum = "0.3, 0.4"
 MathOptInterface = "~0.10"
-julia = "1"
+julia = "1.3"
 
 [extras]
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"

deps/build.jl

@@ -160,7 +160,8 @@ if haskey(ENV, "GUROBI_JL_SKIP_LIB_CHECK")
     # Skip!
 elseif get(ENV, "JULIA_REGISTRYCI_AUTOMERGE", "false") == "true"
     write_depsfile("julia_registryci_automerge")
-elseif !found
+elseif !found && !Sys.islinux()
+    # Use Artifacts on Linux.
     diagnose_gurobi_install()
     error("""
     Unable to locate Gurobi installation. If the advice above did not help,

src/Gurobi.jl

@@ -1,7 +1,15 @@
 module Gurobi
 
+import Pkg.Artifacts
+
 const _DEPS_FILE = joinpath(dirname(@__FILE__), "..", "deps", "deps.jl")
-if isfile(_DEPS_FILE)
+
+if Sys.islinux()
+    const libgurobi = joinpath(
+        Pkg.Artifacts.artifact"gurobi912linux64",
+        "gurobi912/linux64/lib/libgurobi.91.so",
+    )
+elseif isfile(_DEPS_FILE)
     include(_DEPS_FILE)
 else
     error("""