From 4780ec7190dbbeba37f4c28f3fca6544659d3526 Mon Sep 17 00:00:00 2001
From: Zach Bjornson <zbbjornson@gmail.com>
Date: Sun, 26 Apr 2020 12:57:30 -0600
Subject: [PATCH] prebuild with gha

---
 .github/workflows/prebuild.yaml     | 161 ++++++++++++++++++++++++++++
 package.json                        |   2 +-
 prebuild/Linux/binding.gyp          |  53 +++++++++
 prebuild/Linux/bundle.sh            |   5 +
 prebuild/Linux/preinstall.sh        |   8 ++
 prebuild/Windows/binding.gyp        |  79 ++++++++++++++
 prebuild/Windows/bundle.sh          |  19 ++++
 prebuild/Windows/exec_with_msys.bat |   8 ++
 prebuild/Windows/node_version.sh    |   2 +
 prebuild/Windows/preinstall.sh      |  44 ++++++++
 prebuild/install.sh                 |  60 +++++++++++
 prebuild/macOS/.gitignore           |   1 +
 prebuild/macOS/binding.gyp          |  51 +++++++++
 prebuild/macOS/bundle.sh            |   4 +
 prebuild/macOS/preinstall.sh        |   4 +
 prebuild/tarball.sh                 |  17 +++
 16 files changed, 517 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/prebuild.yaml
 create mode 100644 prebuild/Linux/binding.gyp
 create mode 100644 prebuild/Linux/bundle.sh
 create mode 100644 prebuild/Linux/preinstall.sh
 create mode 100644 prebuild/Windows/binding.gyp
 create mode 100644 prebuild/Windows/bundle.sh
 create mode 100644 prebuild/Windows/exec_with_msys.bat
 create mode 100644 prebuild/Windows/node_version.sh
 create mode 100644 prebuild/Windows/preinstall.sh
 create mode 100644 prebuild/install.sh
 create mode 100644 prebuild/macOS/.gitignore
 create mode 100644 prebuild/macOS/binding.gyp
 create mode 100644 prebuild/macOS/bundle.sh
 create mode 100644 prebuild/macOS/preinstall.sh
 create mode 100644 prebuild/tarball.sh

diff --git a/.github/workflows/prebuild.yaml b/.github/workflows/prebuild.yaml
new file mode 100644
index 000000000..b78002c8b
--- /dev/null
+++ b/.github/workflows/prebuild.yaml
@@ -0,0 +1,161 @@
+name: Make Prebuilds
+on: [push]
+# TODO:
+# on:
+#   release:
+#     types:
+#       - created
+
+# When a new Node.js version is released, publish a new node-canvas release that
+# adds that version to CI and the build? Could do on.push.branches: "master"
+# with paths: ".github/workflows/prebuild.yaml", but how do we get the right
+# $GITHUB_REF?
+
+env:
+  CANVAS_VERSION_TO_BUILD: "2.6.1" # no "v" prefix. TODO switch to $GITHUB_REF if we switch to `on: release`
+  CANVAS_PREBUILT_VERSION: "0.0.1"
+
+jobs:
+  Linux:
+    strategy:
+      matrix:
+        node: [10, 12, 14]
+    name: Node.js ${{ matrix.node }} on Linux
+    runs-on: ubuntu-latest
+    container:
+      image: chearon/canvas-prebuilt:7
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+
+      - name: Build
+        env:
+          OS: ${{ runner.os }}
+        run: |
+          npm install -g node-gyp
+          npm install --ignore-scripts
+          . prebuild/$OS/preinstall.sh
+          cp prebuild/$OS/binding.gyp binding.gyp
+          node-gyp rebuild -j 2
+          . prebuild/$OS/bundle.sh
+
+      - name: Test binary
+        run: node -e "require('.')"
+
+      - name: Make bundle
+        id: make_bundle
+        run: |
+          ASSET_NAME=$(. prebuild/tarball.sh $CANVAS_PREBUILT_VERSION)
+          echo "::set-output name=asset_name::${ASSET_NAME}"
+          ls -l
+
+      - name: Upload
+        uses: actions/github-script@0.9.0
+        with:
+          script: |
+            const fs = require("fs");
+            const assetName = "${{ steps.make_bundle.outputs.asset_name }}";
+            const tagName = `v${process.env.CANVAS_PREBUILT_VERSION}`;
+
+            const releases = await github.repos.listReleases({
+              owner: process.env.GITHUB_REPOSITORY.split("/")[0],
+              repo: process.env.GITHUB_REPOSITORY.split("/")[1]
+            });
+            const release = releases.data.find(r => r.tag_name === tagName);
+
+            for (const asset of release.assets) {
+              if (asset.name === assetName) {
+                await github.repos.deleteReleaseAsset({
+                  owner: process.env.GITHUB_REPOSITORY.split("/")[0],
+                  repo: process.env.GITHUB_REPOSITORY.split("/")[1],
+                  asset_id: asset.id
+                });
+                break;
+              }
+            }
+
+            // (This is equivalent to actions/upload-release-asset. We're
+            // already in a script, so might as well do it here.)
+            const r = await github.repos.uploadReleaseAsset({
+              url: release.upload_url,
+              headers: {
+                "content-type": "application/x-gzip",
+                "content-length": `${fs.statSync(assetName).size}`
+              },
+              name: assetName,
+              data: fs.readFileSync(assetName)
+            });
+
+  macOS:
+    strategy:
+      matrix:
+        node: [10, 12, 14]
+    name: Node.js ${{ matrix.node }} on macOS
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+
+      - name: Build
+        env:
+          OS: ${{ runner.os }}
+        run: |
+          npm install -g node-gyp
+          npm install --ignore-scripts
+          . prebuild/$OS/preinstall.sh
+          cp prebuild/$OS/binding.gyp binding.gyp
+          node-gyp rebuild -j 2
+          . prebuild/$OS/bundle.sh
+
+      - name: Test binary
+        run: node -e "require('.')"
+
+      - name: Make bundle
+        id: make_bundle
+        run: |
+          ASSET_NAME=$(. prebuild/tarball.sh $CANVAS_PREBUILT_VERSION)
+          echo "::set-output name=asset_name::${ASSET_NAME}"
+          ls -l
+
+      - name: Upload
+        uses: actions/github-script@0.9.0
+        with:
+          script: |
+            const fs = require("fs");
+            const assetName = "${{ steps.make_bundle.outputs.asset_name }}";
+            const tagName = `v${process.env.CANVAS_PREBUILT_VERSION}`;
+
+            const releases = await github.repos.listReleases({
+              owner: process.env.GITHUB_REPOSITORY.split("/")[0],
+              repo: process.env.GITHUB_REPOSITORY.split("/")[1]
+            });
+            const release = releases.data.find(r => r.tag_name === tagName);
+
+            for (const asset of release.assets) {
+              if (asset.name === assetName) {
+                await github.repos.deleteReleaseAsset({
+                  owner: process.env.GITHUB_REPOSITORY.split("/")[0],
+                  repo: process.env.GITHUB_REPOSITORY.split("/")[1],
+                  asset_id: asset.id
+                });
+                break;
+              }
+            }
+
+            // (This is equivalent to actions/upload-release-asset. We're
+            // already in a script, so might as well do it here.)
+            const r = await github.repos.uploadReleaseAsset({
+              url: release.upload_url,
+              headers: {
+                "content-type": "application/x-gzip",
+                "content-length": `${fs.statSync(assetName).size}`
+              },
+              name: assetName,
+              data: fs.readFileSync(assetName)
+            });
diff --git a/package.json b/package.json
index fe619b0ea..0261c7f3e 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   "binary": {
     "module_name": "canvas",
     "module_path": "build/Release",
-    "host": "https://github.com/node-gfx/node-canvas-prebuilt/releases/download/",
+    "host": "https://github.com/Automattic/node-canvas/releases/download/",
     "remote_path": "v{version}",
     "package_name": "{module_name}-v{version}-{node_abi}-{platform}-{libc}-{arch}.tar.gz"
   },
diff --git a/prebuild/Linux/binding.gyp b/prebuild/Linux/binding.gyp
new file mode 100644
index 000000000..1a967667d
--- /dev/null
+++ b/prebuild/Linux/binding.gyp
@@ -0,0 +1,53 @@
+{
+  'targets': [
+    {
+      'target_name': 'canvas',
+      'sources': [
+        'src/backend/Backend.cc',
+        'src/backend/ImageBackend.cc',
+        'src/backend/PdfBackend.cc',
+        'src/backend/SvgBackend.cc',
+        'src/bmp/BMPParser.cc',
+        'src/Backends.cc',
+        'src/Canvas.cc',
+        'src/CanvasGradient.cc',
+        'src/CanvasPattern.cc',
+        'src/CanvasRenderingContext2d.cc',
+        'src/closure.cc',
+        'src/color.cc',
+        'src/Image.cc',
+        'src/ImageData.cc',
+        'src/init.cc',
+        'src/register_font.cc'
+      ],
+      'defines': [
+        'HAVE_GIF',
+        'HAVE_JPEG',
+        'HAVE_RSVG'
+      ],
+      'libraries': [
+        '<!@(pkg-config pixman-1 --libs)',
+        '<!@(pkg-config cairo --libs)',
+        '<!@(pkg-config libpng --libs)',
+        '<!@(pkg-config pangocairo --libs)',
+        '<!@(pkg-config freetype2 --libs)',
+        '<!@(pkg-config librsvg-2.0 --libs)',
+        '-ljpeg',
+        '-lgif'
+      ],
+      'include_dirs': [
+        '<!(node -e "require(\'nan\')")',
+        '<!@(pkg-config cairo --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config libpng --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config pangocairo --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config freetype2 --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config librsvg-2.0 --cflags-only-I | sed s/-I//g)'
+      ],
+      'ldflags': [
+        '-Wl,-rpath \'-Wl,$$ORIGIN\''
+      ],
+      'cflags!': ['-fno-exceptions'],
+      'cflags_cc!': ['-fno-exceptions']
+    }
+  ]
+}
diff --git a/prebuild/Linux/bundle.sh b/prebuild/Linux/bundle.sh
new file mode 100644
index 000000000..af4f13148
--- /dev/null
+++ b/prebuild/Linux/bundle.sh
@@ -0,0 +1,5 @@
+copies=$(lddtree.sh -l node-canvas/build/Release/canvas.node | sed -r -e '/^\/lib/d' -e '/canvas.node$/d');
+
+for so in $copies; do
+  cp $so node-canvas/build/Release
+done;
diff --git a/prebuild/Linux/preinstall.sh b/prebuild/Linux/preinstall.sh
new file mode 100644
index 000000000..6605e322c
--- /dev/null
+++ b/prebuild/Linux/preinstall.sh
@@ -0,0 +1,8 @@
+# apt-get-style dependencies aren't done here since the
+# linux build is done on a docker image that has them
+
+git clone git://anongit.gentoo.org/proj/pax-utils.git
+cd pax-utils
+PATH=$PATH:$PWD
+make
+cd ..
diff --git a/prebuild/Windows/binding.gyp b/prebuild/Windows/binding.gyp
new file mode 100644
index 000000000..c62e002ba
--- /dev/null
+++ b/prebuild/Windows/binding.gyp
@@ -0,0 +1,79 @@
+{
+  'targets': [
+    {
+      'target_name': 'canvas',
+      'sources': [
+        'src/backend/Backend.cc',
+        'src/backend/ImageBackend.cc',
+        'src/backend/PdfBackend.cc',
+        'src/backend/SvgBackend.cc',
+        'src/bmp/BMPParser.cc',
+        'src/Backends.cc',
+        'src/Canvas.cc',
+        'src/CanvasGradient.cc',
+        'src/CanvasPattern.cc',
+        'src/CanvasRenderingContext2d.cc',
+        'src/closure.cc',
+        'src/color.cc',
+        'src/Image.cc',
+        'src/ImageData.cc',
+        'src/init.cc',
+        'src/register_font.cc'
+      ],
+      'defines': [
+        'HAVE_GIF',
+        'HAVE_JPEG',
+        'HAVE_RSVG',
+        'HAVE_BOOLEAN', # or jmorecfg.h tries to define it
+        '_USE_MATH_DEFINES' # for M_PI
+      ],
+      'libraries': [
+        'C:/msys64/mingw64/lib/libcairo-2.lib',
+        'C:/msys64/mingw64/lib/libpng16-16.lib',
+        'C:/msys64/mingw64/lib/libjpeg-8.lib',
+        'C:/msys64/mingw64/lib/libpango-1.0-0.lib',
+        'C:/msys64/mingw64/lib/libpangocairo-1.0-0.lib',
+        'C:/msys64/mingw64/lib/libgobject-2.0-0.lib',
+        'C:/msys64/mingw64/lib/libglib-2.0-0.lib',
+        'C:/msys64/mingw64/lib/libturbojpeg.lib',
+        'C:/msys64/mingw64/lib/libgif-7.lib',
+        'C:/msys64/mingw64/lib/libfreetype-6.lib',
+        'C:/msys64/mingw64/lib/librsvg-2-2.lib'
+      ],
+      'include_dirs': [
+        '<!(node -e "require(\'nan\')")',
+        'C:/msys64/mingw64/include',
+        'C:/msys64/mingw64/include/pango-1.0',
+        'C:/msys64/mingw64/include/cairo',
+        'C:/msys64/mingw64/include/libpng16',
+        'C:/msys64/mingw64/include/glib-2.0',
+        'C:/msys64/mingw64/lib/glib-2.0/include',
+        'C:/msys64/mingw64/include/pixman-1',
+        'C:/msys64/mingw64/include/freetype2',
+        'C:/msys64/mingw64/include/fontconfig',
+        'C:/msys64/mingw64/include/librsvg-2.0',
+        'C:/msys64/mingw64/include/gdk-pixbuf-2.0'
+      ],
+      'configurations': {
+        'Debug': {
+          'msvs_settings': {
+            'VCCLCompilerTool': {
+              'WarningLevel': 4,
+              'ExceptionHandling': 1,
+              'DisableSpecificWarnings': [4100, 4127, 4201, 4244, 4267, 4506, 4611, 4714, 4512]
+            }
+          }
+        },
+        'Release': {
+          'msvs_settings': {
+            'VCCLCompilerTool': {
+              'WarningLevel': 4,
+              'ExceptionHandling': 1,
+              'DisableSpecificWarnings': [4100, 4127, 4201, 4244, 4267, 4506, 4611, 4714, 4512]
+            }
+          }
+        }
+      }
+    }
+  ]
+}
diff --git a/prebuild/Windows/bundle.sh b/prebuild/Windows/bundle.sh
new file mode 100644
index 000000000..399b547d3
--- /dev/null
+++ b/prebuild/Windows/bundle.sh
@@ -0,0 +1,19 @@
+# write recurisve dependencies of canvas.node into depends.csv
+./depends -c -oc:depends.csv node-canvas/build/Release/canvas.node;
+
+[ -f depends.csv ] || {
+  echo "error invoking depends.exe";
+  exit 1;
+}
+
+# case-insensitive intersection of 3rd column of depends.csv 
+# and all files ending in .dll in the mingw64 directory
+copies=$(comm -12 \
+  <(cat depends.csv | cut -d ',' -f2 | sed 's/"//g' | tr '[:upper:]' '[:lower:]' | sort) \
+  <(find /mingw64/bin -name '*.dll' -printf "%f\n" | tr '[:upper:]' '[:lower:]' | sort) \
+);
+
+for dll in $copies; do
+	cp /mingw64/bin/$dll node-canvas/build/Release
+done;
+
diff --git a/prebuild/Windows/exec_with_msys.bat b/prebuild/Windows/exec_with_msys.bat
new file mode 100644
index 000000000..8398e0d94
--- /dev/null
+++ b/prebuild/Windows/exec_with_msys.bat
@@ -0,0 +1,8 @@
+@echo off
+
+rem sets up MSYS environment and invokes the script argument in bash
+
+set WD=C:\msys64\usr\bin\
+set MSYSTEM=MINGW64
+%WD%bash --login -c "cd $(cygpath '%cd%'); ""%~1"" ""%~2"" ""%~3"" ""%~4"" ""%~5"" ""%~6"" ""%~7"" ""%~8"" ""%~9"""
+
diff --git a/prebuild/Windows/node_version.sh b/prebuild/Windows/node_version.sh
new file mode 100644
index 000000000..b7674986c
--- /dev/null
+++ b/prebuild/Windows/node_version.sh
@@ -0,0 +1,2 @@
+VER=$1
+powershell -Command "Install-Product node $VER x64"
diff --git a/prebuild/Windows/preinstall.sh b/prebuild/Windows/preinstall.sh
new file mode 100644
index 000000000..f65a547e7
--- /dev/null
+++ b/prebuild/Windows/preinstall.sh
@@ -0,0 +1,44 @@
+# expects node, VS, and MSYS environments to be set up already. does everything else.
+
+deps="cairo-2 png16-16 jpeg-8 pango-1.0-0 pangocairo-1.0-0 gobject-2.0-0 glib-2.0-0 turbojpeg gif-7 freetype-6 rsvg-2-2";
+
+# install cairo and tools to create .lib
+
+pacman --noconfirm -S \
+  wget \
+  unzip \
+  mingw64/mingw-w64-x86_64-binutils \
+  mingw64/mingw-w64-x86_64-tools \
+  mingw64/mingw-w64-x86_64-libjpeg-turbo \
+  mingw64/mingw-w64-x86_64-pango \
+  mingw64/mingw-w64-x86_64-cairo \
+  mingw64/mingw-w64-x86_64-giflib \
+  mingw64/mingw-w64-x86_64-freetype \
+  mingw64/mingw-w64-x86_64-fontconfig \
+  mingw64/mingw-w64-x86_64-librsvg
+
+# create .lib files for vc++
+
+echo "generating lib files for the MSYS2 dlls"
+for lib in $deps; do
+  gendef /mingw64/bin/lib$lib.dll > /dev/null 2>&1 || {
+    echo "could not find lib$lib.dll, have to skip ";
+    continue;
+  }
+
+  dlltool -d lib$lib.def -l /mingw64/lib/lib$lib.lib > /dev/null 2>&1 || {
+    echo "could not create dll for lib$lib.dll";
+    continue;
+  }
+
+  echo "created lib$lib.lib from lib$lib.dll";
+
+  rm lib$lib.def
+done
+
+# dependency walker will help us figure out which DLLs 
+# canvas.node directly and indirectly uses
+
+wget -nc http://www.dependencywalker.com/depends22_x64.zip
+unzip -u depends22_x64.zip
+
diff --git a/prebuild/install.sh b/prebuild/install.sh
new file mode 100644
index 000000000..8ecaeb130
--- /dev/null
+++ b/prebuild/install.sh
@@ -0,0 +1,60 @@
+OS=$1;
+
+if [ "$CANVAS_VERSION_TO_BUILD" = "" ]; then
+  echo "Can't do anything since you didn't specify which version we're building!";
+  echo "Specify the environment variable in AppVeyor/Travis"
+  echo "Make sure that building pushes is disabled, and that you are executing builds manually."
+  exit 0;
+fi;
+
+rm -rf node-canvas
+git clone --branch v$CANVAS_VERSION_TO_BUILD --depth 1 https://github.com/Automattic/node-canvas.git || {
+  echo "could not find node-canvas version $CANVAS_VERSION_TO_BUILD in NPM";
+  exit 1;
+}
+
+npm install --ignore-scripts || {
+  echo "failed npm install";
+  exit 1;
+}
+
+if [ "$CANVAS_PREBUILT_VERSION" = "" ]; then
+  echo "You need to specify the prebuilt version, which might be different than the"
+  echo "canvas version that is being built"
+  exit 0;
+fi;
+
+source prebuild/$OS/preinstall.sh
+
+cp prebuild/$OS/binding.gyp node-canvas/binding.gyp
+
+for ver in $PREBUILD_NODE_VERSIONS; do 
+  echo "------------ Building with node $ver ------------"
+
+  source prebuild/$OS/node_version.sh $ver;
+
+  cd node-canvas
+
+  node-gyp rebuild || {
+    echo "error building in nodejs version $ver"
+    exit 1;
+  }
+
+  cd ..
+
+  source prebuild/$OS/bundle.sh;
+
+  node -e "require('./node-canvas')" || {
+    echo "error loading binary";
+    exit 1;
+  }
+
+  source prebuild/tarball.sh $CANVAS_PREBUILT_VERSION;
+done;
+
+# echo "------------ Releasing with release.js ------------"
+# source prebuild/$OS/node_version.sh 11
+# node prebuild/release.js $PREBUILD_VERSION || exit 1;
+
+cd ..
+
diff --git a/prebuild/macOS/.gitignore b/prebuild/macOS/.gitignore
new file mode 100644
index 000000000..4110fe0cd
--- /dev/null
+++ b/prebuild/macOS/.gitignore
@@ -0,0 +1 @@
+macdylibbundler/
diff --git a/prebuild/macOS/binding.gyp b/prebuild/macOS/binding.gyp
new file mode 100644
index 000000000..00ae2ccbc
--- /dev/null
+++ b/prebuild/macOS/binding.gyp
@@ -0,0 +1,51 @@
+{
+  'targets': [
+    {
+      'target_name': 'canvas',
+      'sources': [
+        'src/backend/Backend.cc',
+        'src/backend/ImageBackend.cc',
+        'src/backend/PdfBackend.cc',
+        'src/backend/SvgBackend.cc',
+        'src/bmp/BMPParser.cc',
+        'src/Backends.cc',
+        'src/Canvas.cc',
+        'src/CanvasGradient.cc',
+        'src/CanvasPattern.cc',
+        'src/CanvasRenderingContext2d.cc',
+        'src/closure.cc',
+        'src/color.cc',
+        'src/Image.cc',
+        'src/ImageData.cc',
+        'src/init.cc',
+        'src/register_font.cc'
+      ],
+      'defines': [
+        'HAVE_GIF',
+        'HAVE_JPEG',
+        'HAVE_RSVG'
+      ],
+      'libraries': [
+        '<!@(pkg-config pixman-1 --libs)',
+        '<!@(pkg-config cairo --libs)',
+        '<!@(pkg-config libpng --libs)',
+        '<!@(pkg-config pangocairo --libs)',
+        '<!@(pkg-config freetype2 --libs)',
+        '<!@(pkg-config librsvg-2.0 --libs)',
+        '-ljpeg',
+        '-lgif'
+      ],
+      'include_dirs': [
+        '<!(node -e "require(\'nan\')")',
+        '<!@(pkg-config cairo --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config libpng --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config pangocairo --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config freetype2 --cflags-only-I | sed s/-I//g)',
+        '<!@(pkg-config librsvg-2.0 --cflags-only-I | sed s/-I//g)'
+      ],
+      'xcode_settings': {
+        'GCC_ENABLE_CPP_EXCEPTIONS': 'YES'
+      }
+    }
+  ]
+}
diff --git a/prebuild/macOS/bundle.sh b/prebuild/macOS/bundle.sh
new file mode 100644
index 000000000..3017c7f6d
--- /dev/null
+++ b/prebuild/macOS/bundle.sh
@@ -0,0 +1,4 @@
+build=build/Release
+
+~/Library/Python/*/bin/macpack build/Release/canvas.node -d .
+
diff --git a/prebuild/macOS/preinstall.sh b/prebuild/macOS/preinstall.sh
new file mode 100644
index 000000000..f055eebb6
--- /dev/null
+++ b/prebuild/macOS/preinstall.sh
@@ -0,0 +1,4 @@
+brew update
+brew install pkg-config cairo pango librsvg python3 giflib # python3 is for macpack
+brew upgrade python # activates python 3
+pip3 install --user macpack
diff --git a/prebuild/tarball.sh b/prebuild/tarball.sh
new file mode 100644
index 000000000..890f232cc
--- /dev/null
+++ b/prebuild/tarball.sh
@@ -0,0 +1,17 @@
+# Generate the node-gyp formatted filename from the node environment
+FILENAME=$(
+  node -e "
+    var p = process, v = p.versions, libc = require('detect-libc').family || 'unknown';
+    console.log(['canvas', 'v$CANVAS_PREBUILT_VERSION', 'node-v' + v.modules, p.platform, libc, p.arch].join('-'));
+  "
+).tar.gz;
+
+# Zip up the release
+tar -C build -czf $FILENAME Release/;
+
+if [ $? -ne 0 ]; then
+  echo "failed to make tarball $FILENAME from node-canvas/build"
+  exit 1;
+else
+  echo "$FILENAME";
+fi