# classads mit Homebrew, Nix installieren

Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für classads in AI-Agent-Workflows.

## Installation

```sh
sudo av install brew:classads
```

Weitere Installationsbefehle:

### macOS

- Homebrew (100%):

```sh
brew install classads
```

  Evidenz: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#classads
```

  Evidenz: nixpkgs package indexes: pkgs/by-name/cl/classads/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Paketfakten

- **Paketschlüssel:** brew:classads
- **Paketmanager:** Homebrew
- **Paketmanager-Seite:** <https://formulae.brew.sh/formula/classads>
- **Version:** 1.0.10
- **Quellzusammenfassung:** Classified Advertisements (used by HTCondor Central Manager)
- **Homepage:** <https://research.cs.wisc.edu/htcondor/classad/>
- **Repository:** <https://github.com/htcondor/htcondor>
- **Upstream-Dokumentation:** <https://htcondor.org/classad/c%2B%2Bdoc>
- **Lizenz:** Apache-2.0
- **Quellarchiv:** <https://ftp.cs.wisc.edu/condor/classad/c++/classads-1.0.10.tar.gz>
- **Generiert:** 2026-07-08T18:08:21+00:00

## Executables

- classad_functional_tester (cli)
- classad_functional_tester_ns (cli)
- classad_version (cli)
- classad_version_ns (cli)
- cxi (cli)
- cxi_ns (cli)
- classad_functional_tester (Alias)
- classad_functional_tester_ns (Alias)
- classad_version (Alias)
- classad_version_ns (Alias)
- cxi (Alias)
- cxi_ns (Alias)

## Build-Abhängigkeiten

- autoconf
- automake
- libtool

## Installationsverhalten

- Post-install-Hook: nicht definiert
- Bottle: verfügbar auf arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Version und Aktualität

- Seite generiert: 2026-07-08
- Manager-Version: 1.0.10
- lokale Daten: OK
- Upstream-Repository: https://research.cs.wisc.edu/htcondor/classad/
- Info: No package-manager update timestamp was available.
- Info: Release/tag comparison is only available for GitHub repositories.
## Projektgeschichte und Nutzung

ClassAds are HTCondor's classified advertisement language and matching mechanism for describing jobs, machines, submitters, resources, and constraints in high-throughput computing systems.

### Projektgeschichte

The official ClassAds page describes ClassAds as the lingua franca of HTCondor, exchanged by HTCondor processes to describe jobs, workstations, and other resources. The same page states that the ClassAd library is also available as a standalone package outside HTCondor.

HTCondor documentation records a transition from Old ClassAds to New ClassAds: Old ClassAds were tied to HTCondor development libraries, New ClassAds added features and were designed as a standalone library, and HTCondor switched to the New ClassAd library in version 7.5.1.

### Adoptionsgeschichte

The standalone C++ ClassAd distribution has official release history from 0.9.6 in October 2004 through 1.0.10 in April 2011. Homebrew packages that standalone tarball as classads 1.0.10 and reported 101 installs over the prior 365 days.

### Wie es verwendet wird

ClassAds are used for matchmaking: a job ClassAd and a machine ClassAd can refer to one another while expressions evaluate whether constraints are satisfied. The Homebrew package exposes small C++ library utilities such as cxi and classad_version.

### Warum Paket-Nerds sich dafür interessieren

ClassAds is package-nerd interesting because Homebrew preserves a standalone slice of HTCondor's scheduler expression language as a small C++ package, separate from the much larger HTCondor system.

### Zeitleiste

- 2004: Official standalone C++ library version 0.9.6 released.
- 2010: HTCondor 7.5.1 switched to the New ClassAd library.
- 2011: Official standalone C++ library version 1.0.10 released.
- 2026: Homebrew formula metadata lists classads 1.0.10 as stable.

### Related projects

- ClassAds are part of the HTCondor software suite and are also documented in the HTCondor manual.
- The official ClassAds page references Java implementations and ClassAd language papers/specifications alongside the C++ library.

### Quellen

- <https://htcondor.org/classad/classad.html>
- <https://htcondor.org/classad/c%2B%2Bdoc>
- <https://htcondor.readthedocs.io/en/latest/classads/classad-mechanism.html>
- <https://api.github.com/repos/htcondor/htcondor>
- <https://formulae.brew.sh/api/formula/classads.json>


## Sicherheitshinweise

narrow executable package without higher-risk signals.

- **Geiger-Risiko:** grün / niedrig
- narrow executable package without higher-risk signals

## Details aus der Quelldatenbank

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** classads
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## Andere Paketmanager-Einträge

- Nix - classads: normalized package name match | nixpkgs package indexes: pkgs/by-name/cl/classads/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## Verwandte Links

- [Terminal utility packages](https://www.automicvault.com/de/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/de/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Homebrew utility packages](https://www.automicvault.com/de/pkg/brew-utility-packages/) - Matched Homebrew package provider.
- [Secret-risk packages](https://www.automicvault.com/de/pkg/secret-risk-packages/) - Matched curated package taxonomy and local package facts.
- [autoconf](https://www.automicvault.com/de/pkg/brew/autoconf/) - Build dependency declared by Homebrew.
- [automake](https://www.automicvault.com/de/pkg/brew/automake/) - Build dependency declared by Homebrew.
- [libtool](https://www.automicvault.com/de/pkg/brew/libtool/) - Build dependency declared by Homebrew.
- [snort](https://www.automicvault.com/de/pkg/brew/snort/) - Shares av.db curated category or tags: cli, scheduling, system.
- [resticprofile](https://www.automicvault.com/de/pkg/brew/resticprofile/) - Shares av.db curated category or tags: cli, scheduler, system.
- [abduco](https://www.automicvault.com/de/pkg/brew/abduco/) - Shares av.db curated category or tags: cli, system.
- [acl](https://www.automicvault.com/de/pkg/brew/acl/) - Shares av.db curated category or tags: cli, system.
- [acpica](https://www.automicvault.com/de/pkg/brew/acpica/) - Shares av.db curated category or tags: cli, system.
- [afio](https://www.automicvault.com/de/pkg/brew/afio/) - Shares av.db curated category or tags: cli, system.
- [afsctool](https://www.automicvault.com/de/pkg/brew/afsctool/) - Shares av.db curated category or tags: cli, system.
- [afuse](https://www.automicvault.com/de/pkg/brew/afuse/) - Shares av.db curated category or tags: cli, system.
- [btop](https://www.automicvault.com/de/pkg/brew/btop/) - Local package facts share a topical domain. Shared terms: cli, resource, system, version.

## Combined YAML source

View the package source record on GitHub. [combined/classads.yml](https://github.com/automic-vault/db/blob/main/combined/classads.yml)


## Quellen

- 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