# Install cppi with Homebrew, apt, dnf, Nix, zypper Indent C preprocessor directives to reflect their nesting. Version 1.18 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:cppi ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install cppi ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install cppi ``` Evidence: Debian stable package indexes: cppi from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - dnf (92%): ```sh sudo dnf install cppi ``` Evidence: Fedora Rawhide package metadata: cppi from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#cppi ``` Evidence: nixpkgs package indexes: pkgs/by-name/cp/cppi/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - zypper (92%): ```sh sudo zypper install cppi ``` Evidence: openSUSE Tumbleweed package metadata: cppi from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst ## Package facts - **Package key:** brew:cppi - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.18 - **Source summary:** Indent C preprocessor directives to reflect their nesting - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-3.0-or-later - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - cppi (cli) - cppi (alias) ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1.18 - Local data: ok - Upstream repository: https://www.gnu.org/software/cppi/ - info: No package-manager update timestamp was available. - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage GNU cppi is a small GNU developer tool for indenting C preprocessor directives so their nesting is visible. ### Project history The package is maintained as a GNU program, with Savannah hosting its project and source repository and GNU publishing the user manual and release tarballs. ### Adoption history Its adoption is typical of compact GNU command-line utilities: it appears in Unix package collections as a formatting and lint-adjacent aid for C and C++ source trees. ### How it is used cppi is used from the command line on source files to make conditional-preprocessor structure easier to review by aligning directives with their nesting level. ### Why package nerds care The package matters to maintainers because it is narrowly scoped, reproducibly distributed through GNU release archives, and useful in style or cleanup pipelines without pulling in a full C formatter. ### Timeline - 2010: GNU FTP archive lists cppi 1.14 and 1.15 release tarballs. - 2013: GNU FTP archive lists cppi 1.18 release tarballs. ### Related projects - cppi sits near C formatting and linting tools, but its official scope is specifically C preprocessor directive indentation. ### Sources - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** cppi - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Debian apt - cppi - 1.18-3: normalized package name match | Debian stable package indexes: cppi from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | adjusts or checks indentation of C and C++ preprocessor directives | https://www.gnu.org/software/cppi/ - Nix - cppi: normalized package name match | nixpkgs package indexes: pkgs/by-name/cp/cppi/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - dnf - cppi - 1.18-28.fc44: normalized package name match | Fedora Rawhide package metadata: cppi from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | C preprocessor directive indenter | http://savannah.gnu.org/projects/cppi/ - zypper - cppi - 1.18-2.33: normalized package name match | openSUSE Tumbleweed package metadata: cppi from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst | C preprocessor directive indenter | https://savannah.gnu.org/projects/cppi - zypper - cppi-lang - 1.18-2.33: normalized package name match | openSUSE Tumbleweed package metadata: cppi-lang from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst | Translations for package cppi | https://savannah.gnu.org/projects/cppi ## Related links - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [reorder-python-imports](https://www.automicvault.com/pkg/brew/reorder-python-imports/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools, linting. - [source-highlight](https://www.automicvault.com/pkg/brew/source-highlight/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools, gnu. - [swift-format](https://www.automicvault.com/pkg/brew/swift-format/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools, linting. - [air](https://www.automicvault.com/pkg/brew/air/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools. - [alejandra](https://www.automicvault.com/pkg/brew/alejandra/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools. - [astyle](https://www.automicvault.com/pkg/brew/astyle/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools. - [black](https://www.automicvault.com/pkg/brew/black/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools. - [cbfmt](https://www.automicvault.com/pkg/brew/cbfmt/) - Shares av.db curated category or tags: cli, code-formatting, developer-tools. - [cflow](https://www.automicvault.com/pkg/brew/cflow/) - Local package facts share a topical domain. Shared terms: cli, code, developer, developer-tools, gnu. - [gnu-indent](https://www.automicvault.com/pkg/brew/gnu-indent/) - Local package facts share a topical domain. Shared terms: cli, code, developer, developer-tools, gnu. ## Combined YAML source View the package source record on GitHub. [combined/cppi.yml](https://github.com/automic-vault/db/blob/main/combined/cppi.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph