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+---
+title: Git Info Variables
+linktitle: Git Variables
+description: Get the last Git revision information for every content file.
+date: 2017-03-12
+publishdate: 2017-03-12
+lastmod: 2017-03-12
+categories: [variables and params]
+keywords: [git]
+draft: false
+menu:
+  docs:
+    parent: "variables"
+    weight: 70
+weight: 70
+sections_weight: 70
+aliases: [/extras/gitinfo/]
+toc: false
+wip: false
+---
+
+{{% note "`.GitInfo` Performance Considerations"  %}}
+Hugo's Git integrations should be fairly performant but *can* increase your build time. This will depend on the size of your Git history.
+{{% /note %}}
+
+## `.GitInfo` Prerequisites
+
+1. The Hugo site must be in a Git-enabled directory.
+2. The Git executable must be installed and in your system `PATH`.
+3. The `.GitInfo` feature must be enabled in your Hugo project by passing `--enableGitInfo` flag on the command line or by setting `enableGitInfo` to `true` in your [site's configuration file][configuration].
+
+## The `.GitInfo` Object
+
+The `GitInfo` object contains the following fields:
+
+.AbbreviatedHash
+: the abbreviated commit hash (e.g., `866cbcc`)
+
+.AuthorName
+: the author's name, respecting `.mailmap`
+
+.AuthorEmail
+: the author's email address, respecting `.mailmap`
+
+.AuthorDate
+: the author date
+
+.Hash
+: the commit hash (e.g., `866cbccdab588b9908887ffd3b4f2667e94090c3`)
+
+.Subject
+: commit message subject (e.g., `tpl: Add custom index function`)
+
+## `.Lastmod`
+
+If the `.GitInfo` feature is enabled, `.Lastmod` (on `Page`) is fetched from Git i.e. `.GitInfo.AuthorDate`. This behaviour can be changed by adding your own [front matter configuration for dates](/getting-started/configuration/#configure-front-matter).
+
+[configuration]: /getting-started/configuration/