Add README

README.md

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+# Luzifer / git-recurse-status
+
+Wrapper around git to display status of a whole tree of directories to detect uncommitted or not pushed changes.
+
+## Features
+
+- Recurse through a directory tree
+- Display changes in a short manner
+- Filter output by full-text search
+- Filter output by a combinable set of filters
+- Change format of output using Go templates
+
+## Usage
+
+```bash
+# git-recurse-status --help
+Usage of git-recurse-status:
+  -f, --filter stringSlice   Attributes to filter for (AND combined)
+      --format string        Output format (default "[{{.U}}{{.A}}{{.M}}{{.R}}{{.D}}{{.S}} {{.State}}] {{.Path}} ({{if .Remote}}{{.Remote}} » {{end}}{{.Branch}})")
+  -s, --search string        String to search for in output
+      --version              Prints current version and exits
+```
+
+### Filters
+
+Possible filters:
+
+- By status against the remote:
+  - `diverged` - Local and remote do have different commits
+  - `ahead` - Local has new commits
+  - `behind` - Remote has new commits (remote repository is not automatically fetched!)
+  - `uptodate` - No known changes against remote
+- By local changes:
+  - `unknown` - There are files not yet known to git
+  - `added` - Local files are added to the index but not yet committed
+  - `modified` - Local files are modified but not added to the index
+  - `removed` - Local files were removed but not yet deleted from the index
+  - `deleted` - Files are marked to be removed in the index
+  - `stashed` - You have changes in the stash
+  - `changed` - Shortcut for all local changes at once
+
+All filters mentioned above are extendable with the prefix `no-` to negate them (example: `no-changes`).
+
+Example usage for filters:
+
+```bash
+# git recurse-status -f no-uptodate
+[       →] dockerproxy_config (git@bitbucket.org:luzifer/dockerproxy_config.git » master)
+[  M    →] knut-ws (git@github.com:Luzifer/workstation.git » master)
+
+# git recurse-status -f no-uptodate -f modified
+[  M    →] knut-ws (git@github.com:Luzifer/workstation.git » master)
+```