A Node.js program is using gm (GraphicsMagick) to do some image manipulation/parsing. While it works locally (on my own machine), it doesn't work on the server.
Relevant output:
Error: Command failed:
gm identify: No decode delegate for this image format (that-image.webp).gm identify: Request did not return an image.
I assume this happens because webp is not supported on the server.
We tried to install libwebp-dev and then --reinstall graphicsmagick, but without any luck:
# apt-get install libwebp-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libwebp-dev is already the newest version.
# apt install --reinstall graphicsmagick
Reading package lists... Done
Building dependency tree
Reading state information... Done
...
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 213 not upgraded.
# convert -version
Version: ImageMagick 7.0.7-9 Q16 x86_64 2017-11-24 http://www.imagemagick.org
Copyright: © 1999-2017 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP
Delegates (built-in): bzlib fontconfig freetype jbig jng jp2 jpeg lcms lzma png
tiff webp x xml zlib
# gm identify -version
GraphicsMagick 1.3.20 2014-08-16 Q8 http://www.GraphicsMagick.org/
Copyright (C) 2002-2014 GraphicsMagick Group.
Additional copyrights and licenses apply to this software.
See http://www.GraphicsMagick.org/www/Copyright.html for details.
Feature Support:
Native Thread Safe yes
Large Files (> 32 bit) yes
Large Memory (> 32 bit) yes
BZIP yes
DPS no
FlashPix no
FreeType yes
Ghostscript (Library) no
JBIG yes
JPEG-2000 yes
JPEG yes
Little CMS yes
Loadable Modules no
OpenMP yes (201307)
PNG yes
TIFF yes
TRIO no
UMEM no
WebP no
WMF yes
X11 yes
XML yes
ZLIB yes
Host type: x86_64-pc-linux-gnu
Configured using the command:
./configure '--build' 'x86_64-linux-gnu' '--enable-shared' '--enable-static' '--enable-libtool-verbose' '--prefix=/usr' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--docdir=${prefix}/share/doc/graphicsmagick' '--with-gs-font-dir=/usr/share/fonts/type1/gsfonts' '--with-x' '--x-includes=/usr/include/X11' '--x-libraries=/usr/lib/X11' '--without-dps' '--without-modules' '--without-frozenpaths' '--with-perl' '--with-perl-options=INSTALLDIRS=vendor' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-Wall -g -fno-strict-aliasing -O2' 'LDFLAGS=' 'CXXFLAGS=-Wall -g -fno-strict-aliasing -O2'
Final Build Parameters:
CC = gcc -std=gnu99
CFLAGS = -fopenmp -Wall -g -fno-strict-aliasing -O2 -Wall -pthread
CPPFLAGS = -I/usr/include/X11 -I/usr/include/freetype2 -I/usr/include/libxml2
CXX = g++
CXXFLAGS = -Wall -g -fno-strict-aliasing -O2 -pthread
LDFLAGS = -L/usr/lib/X11 -L/usr/lib -L/usr/lib
LIBS = -ljbig -llcms2 -ltiff -lfreetype -ljasper -ljpeg -lpng12 -lwmflite -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lgomp -lpthread
My local machine outputs:
$ convert --version
Version: ImageMagick 6.9.7-4 Q16 x86_64 20170114 http://www.imagemagick.org
Copyright: © 1999-2017 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC Modules OpenMP
Delegates (built-in): bzlib djvu fftw fontconfig freetype jbig jng jpeg lcms lqr ltdl lzma openexr pangocairo png tiff wmf x xml zlib
$ gm identify -version
GraphicsMagick 1.3.26 2017-07-04 Q16 http://www.GraphicsMagick.org/
Copyright (C) 2002-2017 GraphicsMagick Group.
Additional copyrights and licenses apply to this software.
See http://www.GraphicsMagick.org/www/Copyright.html for details.
Feature Support:
Native Thread Safe yes
Large Files (> 32 bit) yes
Large Memory (> 32 bit) yes
BZIP yes
DPS no
FlashPix no
FreeType yes
Ghostscript (Library) no
JBIG yes
JPEG-2000 no
JPEG yes
Little CMS yes
Loadable Modules no
OpenMP yes (201511)
PNG yes
TIFF yes
TRIO no
UMEM no
WebP yes
WMF yes
X11 yes
XML yes
ZLIB yes
Host type: x86_64-pc-linux-gnu
Configured using the command:
./configure '--build' 'x86_64-linux-gnu' '--enable-shared' '--enable-static' '--enable-libtool-verbose' '--prefix=/usr' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--docdir=${prefix}/share/doc/graphicsmagick' '--with-gs-font-dir=/usr/share/fonts/type1/gsfonts' '--with-x' '--x-includes=/usr/include/X11' '--x-libraries=/usr/lib/X11' '--without-dps' '--without-modules' '--without-frozenpaths' '--with-webp' '--with-perl' '--with-perl-options=INSTALLDIRS=vendor' '--enable-quantum-library-names' '--with-quantum-depth=16' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-Wall -g -fno-strict-aliasing -O2' 'LDFLAGS=' 'CXXFLAGS=-Wall -g -fno-strict-aliasing -O2'
Final Build Parameters:
CC = gcc
CFLAGS = -fopenmp -Wall -g -fno-strict-aliasing -O2 -Wall -pthread
CPPFLAGS = -I/usr/include/X11 -I/usr/include/freetype2 -I/usr/include/libxml2
CXX = g++
CXXFLAGS = -Wall -g -fno-strict-aliasing -O2 -pthread
LDFLAGS = -L/usr/lib/X11
LIBS = -ljbig -lwebp -llcms2 -ltiff -lfreetype -ljpeg -lpng16 -lwmflite -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lgomp -lpthread
The first thing I see is that the server has ImageMagick installed as well. However, it seems that gm identify fails, not convert.
I'm not sure how to solve this. How can we add webp support to GraphicsMagick? Should we get rid of ImageMagick?
