--- name: "BUILDINFOv1" section: "5" platform: "linux" package: "alpm-buildinfo" version: "0.6.0-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/BUILDINFOv1" --- # BUILDINFOv1(5) Information on package build environments for ALPM based packages (version 1). ## NAME BUILDINFO - Information on package build environments for ALPM based packages (version 1). ## DESCRIPTION The **BUILDINFO** format is a textual format that describes a package’s build environment. Such files are located at the root of ALPM packages, are named **.BUILDINFO** and are usually used to reproduce the environment in which a package has been build. For further information refer to **Arch Linux’s reproducible builds effort**\[1\]. The **BUILDINFO** format exists in multiple versions. The document describes version 1, which is a legacy version and has been introduced with the release of pacman 5.1.0 on 2018-05-28. For the latest specification, refer to **BUILDINFO**. ### General Format A **BUILDINFO** file consists of a series of lines, each providing information on an aspect of the build environment of a package, or the file format itself. Leading whitespace is always ignored. Unless noted otherwise, the information contained in a **BUILDINFO** file is considered to be covered by the set of the 95 printable ASCII characters. ### Keywords Each line encodes information that represents one keyword assignment. All keyword assignments consist of a key from the following list immediately followed by a whitespace, an ‘=’ sign, another whitespace and a value. By default, exactly one keyword assignment must be present per keyword in a **BUILDINFO**. As exception to this rule, the keywords **buildenv**, **options** and **installed** may be provided zero or more times. ### format The **BUILDINFO** file format version. Should be the first keyword in the **BUILDINFO** file. The value must be a plain positive integer. This must be **1** for **BUILDINFO** version 1. ### pkgname The name of the package. The value is an **alpm-package-name** (e.g. `example`). ### pkgbase The **alpm-package-base** of the package. The value is an **alpm-package-base** (e.g. `example`). ### pkgver The full version of the package. Note, that this is not to be confused with **alpm-pkgver**, which only represents a subset of this keyword! The value is an **alpm-package-version**, either in *full* or in *full with epoch* form (e.g. `1.0.0-1` or `1:1.0.0-1`, respectively). ### pkgarch The architecture of the package (see **alpm-architecture** for further information). The value must be covered by the set of alphanumeric characters and ‘\_’ (e.g. `x86_64` or `any`). ### pkgbuild\_sha256sum The hex representation of the SHA-256 checksum of the **PKGBUILD** used to build the package. The value must be covered by the set of hexadecimal characters and must be 64 characters long (e.g. `946d8362de3cebe3c86765cb36671a1dfd70993ac73e12892ac7ac5e6ff7ef95`). ### packager The User ID of the entity, that built the package. The value is meant to be used for identity lookups and represents an **OpenPGP User ID**\[2\]. As such, the value is a UTF-8-encoded string, that is conventionally composed of a name and an e-mail address, which aligns with the format described in **RFC 2822**3 ⟨e.g.%20%60John%20Doe%20%3Cjohn@example.org%3E%60⟩\\c . ### builddate The date at which the build of the package started. The value must be numeric and represent the seconds since the Epoch, aka. ‘Unix time’ (e.g. `1729181726`). ### builddir The absolute directory path in which the package has been built by the build tool (e.g. `makepkg`). The value is a UTF-8-encoded string and must represent a valid absolute directory (e.g. `/builddir`). ### buildenv A build environment used by the package build tool (i.e. `makepkg`, defined in `BUILDENV` of makepkg.conf) when building the package. This keyword may be assigned zero or more times. The value must be a unique word, optionally prefixed by a single ‘!’, which indicates the negation of the environment (e.g. `color` or `!color`). ### options An option used by the package build tool (i.e. `makepkg`, defined in `OPTIONS` of makepkg.conf) when building the package. This keyword may be assigned zero or more times. The value must be a unique word, optionally prefixed by a single ‘!’, which indicates the negation of the option (e.g. `debug` or `!debug`). ### installed The information about an installed package during build time of the package. This keyword may be assigned zero or more times. The value represents a composite string, composed of an **alpm-package-name**, directly followed by a ‘-’ sign, directly followed by an **alpm-package-version** (in *full* or in *full in epoch* form), directly followed by a ‘-’ sign, followed by an **alpm-architecture** (e.g. `example-1:1.0.0-1-x86_64`). ## EXAMPLES ``` format = 1 pkgname = example pkgbase = example pkgver = 1:1.0.0-1 pkgarch = any pkgbuild_sha256sum = b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c packager = John Doe builddate = 1729181726 builddir = /build buildenv = !color buildenv = check options = !strip options = staticlibs installed = other-package-1:0.5.0-3-any installed = package2-2.1.0-6-x86_64 ``` ## SEE ALSO [**alpm-buildinfo**(1)](/alpm-buildinfo/1.md), [**PKGBUILD**(5)](/PKGBUILD/5.md), [**makepkg.conf**(5)](/makepkg.conf/5.md), [**alpm-architecture**(7)](/alpm-architecture/7.md), [**alpm-package-name**(7)](/alpm-package-name/7.md), [**alpm-package-version**(7)](/alpm-package-version/7.md), [**alpm-pkgver**(7)](/alpm-pkgver/7.md), [**makepkg**(8)](/makepkg/8.md), [**pacman**(8)](/pacman/8.md) ## NOTES - 1\. **Arch Linux’s Reproducible Builds effort** - ⟨https://wiki.archlinux.org/title/Reproducible\_builds⟩ - 2\. **OpenPGP User ID** - ⟨https://openpgp.dev/book/certificates.html#user-ids⟩ - 3\. **RFC 2822** - ⟨https://www.rfc-editor.org/rfc/rfc2822⟩