Is there a way to represent a directory tree in a Github README.md?

Question

In my Githubs repos documentation I want to represent a directory tree structure like this:

Answer 1

Here is a useful git alias that works for me.

git config --global alias.tree '! git ls-tree --full-name --name-only -t -r HEAD | sed -e "s/[^-][^\/]*\//   |/g" -e "s/|\([^ ]\)/|-- \1/"'

Here is the output of git tree

jonavon@XPS13:~/projects/roman-numerals$ git tree
.gitignore
pom.xml
src
   |-- main
   |   |-- java
   |   |   |-- com
   |   |   |   |-- foxguardsolutions
   |   |   |   |   |-- jonavon
   |   |   |   |   |   |-- AbstractFile.java
   |   |   |   |   |   |-- roman
   |   |   |   |   |   |   |-- Main.java
   |   |   |   |   |   |   |-- Numeral.java
   |   |   |   |   |   |   |-- RomanNumberInputFile.java
   |   |   |   |   |   |   |-- RomanNumeralToDecimalEvaluator.java
   |-- test
   |   |-- java
   |   |   |-- com
   |   |   |   |-- foxguardsolutions
   |   |   |   |   |-- jonavon
   |   |   |   |   |   |-- roman
   |   |   |   |   |   |   |-- InterpretSteps.java
   |   |   |   |   |   |   |-- RunCukesTest.java
   |   |-- resources
   |   |   |-- com
   |   |   |   |-- foxguardsolutions
   |   |   |   |   |-- jonavon
   |   |   |   |   |   |-- roman
   |   |   |   |   |   |   |-- Interpret.feature
   |   |   |-- sample-input.txt

The comparable tree command

jonavon@XPS13:~/projects/roman-numerals$ tree -n
.
├── pom.xml
├── src
│   ├── main
│   │   └── java
│   │       └── com
│   │           └── foxguardsolutions
│   │               └── jonavon
│   │                   ├── AbstractFile.java
│   │                   └── roman
│   │                       ├── Main.java
│   │                       ├── Numeral.java
│   │                       ├── RomanNumberInputFile.java
│   │                       └── RomanNumeralToDecimalEvaluator.java
│   └── test
│       ├── java
│       │   └── com
│       │       └── foxguardsolutions
│       │           └── jonavon
│       │               └── roman
│       │                   ├── InterpretSteps.java
│       │                   └── RunCukesTest.java
│       └── resources
│           ├── com
│           │   └── foxguardsolutions
│           │       └── jonavon
│           │           └── roman
│           │               └── Interpret.feature
│           └── sample-input.txt
└── target
    ├── classes
    │   └── com
    │       └── foxguardsolutions
    │           └── jonavon
    │               ├── AbstractFile.class
    │               └── roman
    │                   ├── Main.class
    │                   ├── Numeral.class
    │                   ├── RomanNumberInputFile.class
    │                   └── RomanNumeralToDecimalEvaluator.class
    ├── generated-sources
    │   └── annotations
    └── maven-status
        └── maven-compiler-plugin
            └── compile
                └── default-compile
                    ├── createdFiles.lst
                    └── inputFiles.lst

30 directories, 17 files

Clearly tree has better output, but I would like it to use my .gitignore file. So that my compiled content doesn't show