Created
July 11, 2023 07:26
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（もうすぐEoLだけど）CentOS7のMastodonでWebPをまともに扱うためのコマンド
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| # install dev packages | |
| $ sudo yum -y install rpm-build perl-devel lcms2-devel openjpeg2-devel bzip2-devel libtiff-devel giflib-devel ghostscript-devel libwmf-devel jasper-devel libtool-ltdl-devel libXext-devel libXt-devel librsvg2-devel OpenEXR-devel libwebp-devel mock | |
| $ sudo yum -y group install "Development Tools" | |
| $ sudo useradd -s /sbin/nologin mockbuild | |
| # get ImageMagick src packet | |
| $ rpm -ivh http://vault.centos.org/centos/7/updates/Source/SPackages/ImageMagick-6.9.10.68-6.el7_9.src.rpm | |
| $ sed -i '/BuildRequires:\tghostscript-devel/a BuildRequires:\tlibwebp-devel' /root/rpmbuild/SPECS/ImageMagick.spec | |
| $ sed -i '/Requires: pkgconfig/a Requires: libwebp' /root/rpmbuild/SPECS/ImageMagick.spec | |
| # make RPM package | |
| $ rpmbuild -ba /root/rpmbuild/SPECS/ImageMagick.spec | |
| # install package | |
| $ sudo rpm -Uvh --force /root/rpmbuild/RPMS/x86_64/ImageMagick-6.9.10.68-6.el7_9.src.rpm | |
| # disable updates from CentOS repository | |
| $ sudo yum-config-manager --save --setopt=updates.exclude=ImageMagick*; | |
| # verify WebP in imagemagick | |
| $ identify -list format | grep -i webp | |
| # edit magic file | |
| $ file -v | |
| file-5.11 | |
| magic file from /etc/magic:/usr/share/misc/magic | |
| $ sudoedit /etc/magic | |
| 0 string RIFF RIFF (little-endian) data | |
| >8 string WEBP \b, Web/P image | |
| !:mime image/webp |
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