rpmdefine

(PECL rpminfo >= 1.2.0)

rpmdefine — Define or change a RPM macro value

説明

function rpmdefine(string $text): bool

Define or change a RPM macro value.

This can be used to select the database path and backend to use instead of system default one.

パラメータ

text: Macro name, options, body.

戻り値

成功した場合に true を、失敗した場合に false を返します。

例

例1 A rpmdefine() example

<?php
// use an old database (bdb) from an EL-8 chroot
rpmdefine("_dbpath /var/lib/mock/almalinux-8-x86_64/root/var/lib/rpm");
rpmdefine("_db_backend bdb_ro");
print_r(rpmdbinfo("almalinux-release")[0]["Summary"]);

// use a new database (sqlite) from a Fedora-41 chroot
rpmdefine("_dbpath /var/lib/mock/fedora-41-x86_64/root/usr/lib/sysimage/rpm");
rpmdefine("_db_backend sqlite");
print_r(rpmdbinfo("fedora-release")[0]["Summary"]);
?>

上の例の出力は以下となります。

AlmaLinux release file
Fedora release files

参考

rpmexpand() - Retrieve expanded value of a RPM macro
rpmdbinfo() - Get information from installed RPM

関連キーワード:

rpmdefine macro Define change release database backend rpmdbinfo rpmexpand text chroot dbpath mock almalinux root print Summary sqlite Fedora fedora rpmdbsearch RpmInfo rpminfo used path