Add dev-php/composer

Signed-off-by: Shin'ya Minazuki <shinyoukai@chaotic.ninja>

dev-php/composer/Manifest

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+DIST composer.phar 3639279 BLAKE2B 23700d1898c5686def8f990abef52b5d02e4d68641e74c1a3c77f4495e3dbe3d8171462e545cc5e8417dd1212aaf860300b34f029632fe2d3131cdc3dd67f298 SHA512 81e4d681fed786c036aa210ec694e89f132aa8a24129f08be895b16d29318e25b466d40565d6b84713d206aa4721a46cde85fa26144d12832eb233779b4b2104

dev-php/composer/composer-2.10.2.ebuild

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+# Copyright 2026 Shin'ya Minazuki
+EAPI=8
+
+inherit edo
+
+DESCRIPTION="Dependency manager for PHP"
+HOMEPAGE="https://getcomposer.org/download/"
+SRC_URI="https://getcomposer.org/download/${PV}/${PN}.phar"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64"
+
+S="${WORKDIR}"
+
+DEPEND=">=dev-lang/php-8.2[mbstring,phar,zip]"
+
+src_unpack() {
+	einfo "Archive cannot be unpacked"
+	true
+}
+
+src_install() {
+	edo mkdir -p "${D}/usr/share/php8"
+	edo cp -f ${DISTDIR}/${PN}.phar "${D}/usr/share/php8/${PN}.phar"
+	dobin "${FILESDIR}/composer"
+}

dev-php/composer/files/composer

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+#!/bin/sh
+# This is a shell script wrapper to execute Composer
+php /usr/share/php8/composer.phar "$@"

dev-php/composer/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>shinyoukai@chaotic.ninja</email>
+		<name>Shin'ya Minazuki</name>
+	</maintainer>
+</pkgmetadata>