Basically cargo-copy https://github.com/chef/chef/blob/habiwindochef/habitat/plan.ps1

Thanks @robbkidd =)

Signed-off-by: Miah Johnson <miah@chia-pet.org>

habitat/plan.ps1

@@ -1,48 +1,98 @@
 $pkg_name="inspec"
 $pkg_origin="miah"
 $pkg_version=$(cat "$PLAN_CONTEXT/../VERSION")
+$pkg_revision="1"
 $pkg_description="InSpec is an open-source testing framework for infrastructure
   with a human- and machine-readable language for specifying compliance,
   security and policy requirements."
 $pkg_upstream_url="https://www.inspec.io/"
 $pkg_maintainer="The Habitat Maintainers <humans@habitat.sh>"
 $pkg_license=('Apache-2.0')
+
 $pkg_deps=@(
-  "core/coreutils",
-  "core/cacerts",
-  "core/git",
-  "core/ruby",
-  "core/bash"
-)
-$pkg_build_deps=@(
-  "core/gcc",
-  "core/make",
-  "core/readline",
-  "core/sed"
+  "core/cacerts"
+  "robbkidd/ruby-plus-devkit/2.6.3"
 )
 $pkg_bin_dirs=@("bin")
+$project_root= (Resolve-Path "$PLAN_CONTEXT/../").Path
 
-function Invoke-Unpack {
-  mkdir "$HAB_CACHE_SRC_PATH/$pkg_dirname"
-  Copy-Item "$PLAN_CONTEXT"/.. "$HAB_CACHE_SRC_PATH/$pkg_dirname/" -Recurse
+function Invoke-SetupEnvironment {
+    Push-RuntimeEnv -IsPath GEM_PATH "$pkg_prefix/vendor"
+
+    Set-RuntimeEnv APPBUNDLER_ALLOW_RVM "true" # prevent appbundler from clearing out the carefully constructed runtime GEM_PATH
+    Set-RuntimeEnv -IsPath SSL_CERT_FILE "$(Get-HabPackagePath cacerts)/ssl/cert.pem"
+    Set-RuntimeEnv LANG "en_US.UTF-8"
+    Set-RuntimeEnv LC_CTYPE "en_US.UTF-8"
 }
 
 function Invoke-Build {
-  Push-Location "$HAB_CACHE_SRC_PATH/$pkg_dirname/"
-    gem build inspec.gemspec
+    try {
+        Push-Location $project_root
+        $env:GEM_HOME = "$HAB_CACHE_SRC_PATH/$pkg_dirname/vendor"
+
+        Write-BuildLine " ** Configuring bundler for this build environment"
+        bundle config --local without integration deploy maintenance
+        bundle config --local jobs 4
+
+        Write-BuildLine " ** Using bundler to retrieve the Ruby dependencies"
+        bundle install
+        Write-BuildLine " ** Running the inspec project's 'rake install' to install the path-based gems so they look like any other installed gem."
+        bundle exec rake install # this needs to be 'bundle exec'd because a Rakefile makes reference to Bundler
+        Write-BuildLine " ** Also 'rake install' any gem sourced as a git reference."
+        foreach($git_gem in (Get-ChildItem "$env:GEM_HOME/bundler/gems")) {
+            try {
+                Push-Location $git_gem
+                Write-BuildLine " -- and $git_gem too"
+                rake install # this needs to NOT be 'bundle exec'd else bundler complains about dev deps not being installed
+            } finally {
                 Pop-Location
-  Push-Location "$HAB_CACHE_SRC_PATH/$pkg_dirname/inspec-bin"
-    gem build inspec-bin.gemspec
+            }
+        }
+    } finally {
         Pop-Location
     }
+}
 
 function Invoke-Install {
-  # MUST install inspec first because inspec-bin depends on it via gemspec
-  Push-Location "$HAB_CACHE_SRC_PATH/$pkg_dirname/"
-    gem install inspec-*.gem --no-document
-  Pop-Location
+    Write-BuildLine "** Copy built & cached gems to install directory"
+    Copy-Item -Path "$HAB_CACHE_SRC_PATH/$pkg_dirname/*" -Destination $pkg_prefix -Recurse -Force -Exclude @("gem_make.out", "mkmf.log", "Makefile")
 
-  Push-Location "$HAB_CACHE_SRC_PATH/$pkg_dirname/inspec-bin"
-    gem install inspec-bin*.gem --no-document
-  Pop-Location
+    try {
+        Push-Location $pkg_prefix
+        bundle config --local gemfile $project_root/Gemfile
+        foreach($gem in ("inspec-bin", "inspec")) {
+            Write-BuildLine "** generating binstubs for $gem with precise version pins"
+            Invoke-Expression -Command "appbundler.bat $project_root $pkg_prefix/bin $gem"
+        }
+        Remove-StudioPathFrom -File $pkg_prefix/vendor/gems/inspec-$pkg_version*/Gemfile
+    } finally {
+        Pop-Location
+        # forget about the build bundle config
+        Remove-Item $pkg_prefix/.bundle -Recurse -Force
+    }
+}
+
+function Invoke-After {
+    # Trim the fat before packaging
+
+    # We don't need the cache of downloaded .gem files ...
+    Remove-Item $pkg_prefix/vendor/cache -Recurse -Force
+    # ... or bundler's cache of git-ref'd gems
+    Remove-Item $pkg_prefix/vendor/bundler -Recurse -Force
+
+    # We don't need the gem docs.
+    Remove-Item $pkg_prefix/vendor/doc -Recurse -Force
+    # We don't need to ship the test suites for every gem dependency,
+    # only inspec's for package verification.
+    Get-ChildItem $pkg_prefix/vendor/gems -Filter "spec" -Directory -Recurse -Depth 1 `
+        | Where-Object -FilterScript { $_.FullName -notlike "*inspec*" }             `
+        | Remove-Item -Recurse -Force
+}
+function Remove-StudioPathFrom {
+    Param(
+        [Parameter(Mandatory=$true)]
+        [String]
+        $File
+    )
+    (Get-Content $File) -replace ($env:FS_ROOT -replace "\\","/"),"" | Set-Content $File
 }