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+#------------------------------------------------------------------------------
+# $File: gentoo,v 1.5 2022/12/26 17:16:55 christos Exp $
+# gentoo: file(1) magic for gentoo specific formats
+#
+# Summary: Gentoo ebuild Manifest files (GLEP 74)
+# Reference: https://www.gentoo.org/glep/glep-0074.html
+# Submitted by: Michal Gorny <mgorny@gentoo.org>
+# Start by doing a fast check for the most common tags.
+0 string AUX
+>0 use gentoo-manifest
+0 string DATA
+>0 use gentoo-manifest
+0 string DIST
+>0 use gentoo-manifest
+0 string EBUILD
+>0 use gentoo-manifest
+0 string MANIFEST
+>0 use gentoo-manifest
+
+# Manifest can be PGP-signed.
+0 string -----BEGIN\040PGP\040SIGNED\040MESSAGE-----
+>34 search/32 \n\n
+>>&0 string AUX
+>>>&0 use gentoo-manifest
+>>&0 string DATA
+>>>&0 use gentoo-manifest
+>>&0 string DIST
+>>>&0 use gentoo-manifest
+>>&0 string EBUILD
+>>>&0 use gentoo-manifest
+>>&0 string MANIFEST
+>>>&0 use gentoo-manifest
+
+# Use a more detailed regex to verify that we were correct.
+# <tag> <filename> <size> <hash-name> <hash-value>...
+# (<tag>'s already been matched prior to calling)
+0 name gentoo-manifest
+>&0 regex [[:space:]]+[[:print:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:alnum:]]+[[:space:]]+[[:xdigit:]]{32} Gentoo Manifest (GLEP 74)
+!:mime application/vnd.gentoo.manifest
+
+# Summary: Gentoo ebuild and eclass files
+# Reference: https://projects.gentoo.org/pms/8/pms.html
+# Submitted by: Michal Gorny <mgorny@gentoo.org>
+0 search/512 EAPI=
+>0 regex .*\n[\040\t]*EAPI=["']? Gentoo ebuild
+>>&0 regex [[:alnum:]+_.-]+ \b, EAPI %s
+!:mime application/vnd.gentoo.ebuild
+
+0 search/512 @ECLASS:\040 Gentoo eclass
+>&0 string x %s
+!:mime application/vnd.gentoo.eclass
+
+# Summary: Gentoo supplementary package and category metadata files
+# Reference: https://www.gentoo.org/glep/glep-0068.html
+# Submitted by: Michal Gorny <mgorny@gentoo.org>
+0 string \<?xml
+>0 search/512 \<catmetadata Gentoo category metadata file
+!:mime application/vnd.gentoo.catmetadata+xml
+>0 search/512 \<pkgmetadata Gentoo package metadata file
+!:mime application/vnd.gentoo.pkgmetadata+xml
+
+# Summary: Gentoo GLEP 78 binary package
+# Reference: https://www.gentoo.org/glep/glep-0078.html
+# Note: assumes the strict format
+# Submitted by: Michal Gorny <mgorny@gentoo.org>
+
+# GPKG uses ustar (or ustar-compatible GNU format) that starts with
+# a <directory>/gpkg-1 file
+257 string ustar
+>0 search/100 /gpkg-1\0
+>>0 regex [^/]+ Gentoo GLEP 78 (GPKG) binary package for "%s"
+!:mime application/vnd.gentoo.gpkg
+!:ext tar
+# the logic below requires the gpkg-1 file to be empty
+>>>124 string 00000000000\0
+# determine the compression used by looking at the second member name
+>>>>512 search/100 .tar.
+>>>>>&0 string gz\0 using gzip compression
+>>>>>&0 string bz2\0 using bzip2 compression
+>>>>>&0 string lz\0 using lzip compression
+>>>>>&0 string lz4\0 using lz4 compression
+>>>>>&0 string lzo\0 using lzo compression
+>>>>>&0 string xz\0 using xz compression
+>>>>>&0 string zst\0 using zstd compression
+>>>>(636.o+1024) search/611 .sig\0 \b, signed