# Install xclogparser with Homebrew Tool to parse the SLF serialization format used by Xcode. Version 0.2.49 via Homebrew; verified 2026-07-07. ## Install ```sh sudo av install brew:xclogparser ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install xclogparser ``` Evidence: local Homebrew formula metadata ## Package facts - **Package key:** brew:xclogparser - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.2.49 - **Source summary:** Tool to parse the SLF serialization format used by Xcode - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-07-07T20:35:03Z - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - xclogparser (cli) - xclogparser (alias) ## Uses from macOS - swift ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.2.49 - Package-manager updated: 2026-07-07 - Local data: ok - Upstream repository: https://github.com/MobileNativeFoundation/XCLogParser - Upstream latest detected: v0.2.49 (current) ## Project history and usage XCLogParser is a Swift command-line tool for parsing Xcode and `xcodebuild` logs stored as compressed `.xcactivitylog` files in Apple's SLF format. Its README presents it as a way to turn opaque build and test logs into JSON, HTML, Chrome trace, issue, and summary reports. ### Project history The project came from Spotify's Apple-platform build tooling work and later moved under the Mobile Native Foundation organization. Its README points to Erick Camacho's AltConf 2019 talk about the `.xcactivitylog` format, and Spotify's later XCMetrics writing explains that XCLogParser was created to extract human-readable data from Xcode build logs. XCLogParser's scope expanded from dumping raw logs to producing structured reports for build times, warnings, errors, unit-test results, Swift compiler timings, linker statistics, and Clang time-trace data. The GitHub releases page shows ongoing maintenance through v0.2.48 in June 2026, including parser updates for newer Xcode activity-log sections. ### Adoption history The most visible downstream adoption is XCMetrics, Spotify's build-metrics system. Spotify and XCMetrics documentation state that XCMetrics is built on top of XCLogParser and has used it to collect large-scale build metrics across Spotify iOS applications, turning the parser from a standalone CLI into an engine for continuous developer-productivity measurement. ### How it is used Typical use is either `xclogparser dump` for raw JSON or `xclogparser parse` with a reporter such as `json`, `flatJson`, `summaryJson`, `chromeTracer`, `issues`, or `html`. The README documents locating logs by project, workspace, xcodeproj, explicit file, or DerivedData path. The README also documents Xcode integration through a post-scheme build action, plus a caveat that since Xcode 11, command-line `xcodebuild` only generates `.xcactivitylog` build logs when `-resultBundlePath` is supplied. That detail is central to using the tool reliably in CI. ### Why package nerds care XCLogParser is significant because `.xcactivitylog` files are not pleasant text logs: they are gzipped binary SLF data in DerivedData. The tool gives package, CI, and build-performance nerds a stable way to mine Xcode's hidden build graph and timing data without depending on the Xcode UI. ### Timeline - 2019: README points users to an AltConf 2019 talk about the Xcode activity-log format. - 2020: Spotify introduces XCMetrics as a system built on top of XCLogParser for continuous build metrics. - 2026-06-09: GitHub releases list v0.2.48 with parser updates for newer Xcode activity logs. ### Related projects - XCMetrics is the major related project and uses XCLogParser as its log-parsing foundation. - xcbeautify and similar xcodebuild log tools address console output readability, while XCLogParser focuses on `.xcactivitylog` and structured build telemetry. ### 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:** xclogparser - **Version Scheme:** 0 - **Revision:** 0 - **Requirements:** xcode - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [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. - [xcbeautify](https://www.automicvault.com/pkg/brew/xcbeautify/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode, xcodebuild. - [xcdiff](https://www.automicvault.com/pkg/brew/xcdiff/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode. - [xcenv](https://www.automicvault.com/pkg/brew/xcenv/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode. - [xcode-build-server](https://www.automicvault.com/pkg/brew/xcode-build-server/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode. - [xcode-kotlin](https://www.automicvault.com/pkg/brew/xcode-kotlin/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode. - [xcodegen](https://www.automicvault.com/pkg/brew/xcodegen/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode. - [xcodes](https://www.automicvault.com/pkg/brew/xcodes/) - Shares av.db curated category or tags: apple-development, cli, developer-tools, xcode. - [goaccess](https://www.automicvault.com/pkg/brew/goaccess/) - Shares av.db curated category or tags: cli, developer-tools, log-analysis. ## Combined YAML source View the package source record on GitHub. [combined/xclogparser.yml](https://github.com/automic-vault/db/blob/main/combined/xclogparser.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 - cross-ecosystem install command graph