This is a fork of the gographics/imagick package to work with Bazel. It includes compiled object files for darwin and linux for ImageMagick 6.9.9-26, by downloading it and its dependencies and compiling it all from source.
These instructions assume a MacOS host.
This is only necessary if you want to rebuild the native libraries, for example to add new delegates (support for more image formats) or upgrading the library.
Linux (CentOS7):
vagrant up build
vagrant scp 'build:/home/vagrant/imagemagick-build/include' libs/
vagrant scp 'build:/home/vagrant/imagemagick-build/lib/*.a' libs/linux/
MacOS (High Sierra):
bash download-build-imagemagick.sh
cp ~/imagemagick-build/lib/*.a libs/darwin
This is a good overview of the settings if you need to make changes to the script:
http://imagemagick.sourceforge.net/http/www/install.html
Linux
vagrant up dev
vagrant ssh dev -c 'bazel test imagick:go_default_test'
MacOS
bazel test imagick:go_default_test
Linux
vagrant up dev prod
vagrant ssh dev -c 'cd /vagrant && bazel build imagick:go_default_test'
vagrant scp dev:/vagrant/bazel-bin/imagick/linux_amd64_stripped/go_default_test .
vagrant scp go_default_test prod:/home/vagrant/
vagrant ssh prod -c ./go_default_test
Go Imagick is a Go bind to ImageMagick's MagickWand C API.
It was originally developed and tested with ImageMagick 6.8.5-4, however most official Unix or Linux distributions use older versions (6.7.7, 6.8.0, etc) so some features in Go Imagick's go1 branch are being commented out and will see the light when these ImageMagick distributions could easily be updated (from the devops PoV).
sudo port install ImageMagick
sudo apt-get install libmagickwand-dev
Check if pkg-config is able to find the right ImageMagick include and libs:
pkg-config --cflags --libs MagickWand
Then go get it:
go get github.com/gographics/imagick/imagick
http://godoc.org/github.com/gographics/imagick/imagick
The examples folder is full with usage examples ported from C ones found in here: http://members.shaw.ca/el.supremo/MagickWand/
Since this is a CGO binding, Go GC does not manage memory allocated by the C API then is necessary to use Terminate() and Destroy() methods.
package main
import "github.com/gographics/imagick/imagick"
func main() {
imagick.Initialize()
defer imagick.Terminate()
mw := imagick.NewMagickWand()
defer mw.Destroy()
...
}
Copyright (c) 2013, Herbert G. Fischer All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of the organization nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL HERBERT G. FISCHER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.