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2026-08-13 12:51:27 +01:00

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# dirmd
Generate markdown documentation from directory structure. Optimized for LLM ingestion.
## Features
- Recursive directory traversal
- ASCII tree visualization (LLM-friendly, minimal token overhead)
- Full file contents with explicit delimiters and metadata
- Filters dotfiles, binaries, and blacklisted extensions
- Vertical slices mode: root file + one markdown per top-level directory
- Append mode for single files or directories
- Force overwrite of existing output files
- Configurable depth, file size limits, ignore patterns
- Optional upload to Proton Drive after generating output
![dirmd](./docs/dirmd.gif)
## Build
go build -o dirmd .
## Usage
# Create new documentation
dirmd -o output.md ~/repos/myproject
# Overwrite existing output file
dirmd -o output.md ~/repos/myproject -f
# Append a single file
dirmd -a -i README.md -o existing.md
# Append another directory
dirmd -a ~/repos/anotherproject -o existing.md
# Generate with vertical slices
dirmd -o output.md ~/repos/myproject --vertical-slices
# Generate and upload to Proton Drive (default: /my-files/md/<filename>)
dirmd -o output.md ~/repos/myproject --proton-drive
# Generate and upload to a specific remote path
dirmd -o output.md ~/repos/myproject --proton-drive --drive-path /my-files/docs/api.md
## Vertical Slices Mode
When `--vertical-slices` is passed, dirmd splits output into multiple files instead of one monolithic document:
- **Root file** (`-o output.md`): Full directory tree with cross-references to slice files, a vertical slices index table (file counts, total bytes per directory), and full contents of all root-level files.
- **Slice files** (`cmd.md`, `internal.md`, etc.): One per top-level directory, placed alongside the root file. Each contains its own tree, a back-reference to the root document, and full recursive file contents for that directory.
This mode cannot be combined with `--append` or `--input-file`.
Example output with `dirmd -o docs.md ~/repos/myproject --vertical-slices`:
docs/
├── docs.md ← root: tree + slices index + root file contents
├── cmd.md ← slice: tree + contents of cmd/
└── internal.md ← slice: tree + contents of internal/
## LLM-Optimized Output
Output is designed for RAG ingestion and LLM context windows, not human presentation:
- **ASCII tree format** (`+-` instead of Unicode box-drawing) to reduce token overhead
- **Explicit file delimiters**: `--- FILE: ./path (bytes, lines) ---` and `--- END FILE ---`
- **Document type markers**: `[ROOT]` and `[SLICE]` in H1 headers
- **Cross-references**: Directory entries in root tree show `-> see cmd.md`; slice files reference their root document
- **Slices index table**: File counts and total bytes per slice for informed retrieval decisions
- **Tilde fences** (`~~~`) to avoid conflicts with backticks in source files
## Flags
| Flag | Description | Default |
|------|-------------|---------|
| `-o`, `--output` | Output markdown file path (required) | |
| `-a`, `--append` | Append to existing output file | false |
| `-f`, `--force` | Overwrite existing output file (non-append mode) | false |
| `-i`, `--input-file` | Single file input (append mode only) | |
| `--vertical-slices` | Split output into root file + one markdown per top-level directory | false |
| `--max-size` | Max file size in bytes | 524288 |
| `--max-depth` | Max directory recursion depth | 20 |
| `--ignore` | Additional ignore patterns (glob) | |
| `--extensions` | Additional file extensions to skip | |
| `--proton-drive` | Upload output to Proton Drive after writing locally | false |
| `--drive-path` | Full remote path on Proton Drive (e.g. /my-files/md/report.md) | /my-files/md/&lt;filename&gt; |
## Proton Drive Integration
dirmd can optionally upload the generated markdown file(s) to Proton Drive using the [Proton Drive CLI](https://proton.me/support/drive-cli). The upload is performed only when `--proton-drive` is passed. Without it, dirmd behaves exactly as before — no Proton Drive dependency is required.
In vertical slices mode, all generated files (root + slices) are uploaded to `/my-files/md/`. The `--drive-path` flag is ignored in slices mode; each file is uploaded by its basename.
### Prerequisites
1. Install the Proton Drive CLI — see the [official guide](https://proton.me/support/drive-cli) for download and installation instructions.
2. Authenticate by running `proton-drive auth login`.
3. Ensure `proton-drive` is in your `PATH`.
If the CLI is not installed or you are not logged in, dirmd will report the error to stderr and exit with a non-zero code. Local files are always written successfully before the upload is attempted.
For full documentation on the Proton Drive CLI, including installation, authentication, and troubleshooting, refer to the [official Proton Drive CLI support page](https://proton.me/support/drive-cli).
## Examples
# Custom depth and size limit
dirmd -o output.md ~/repos/project --max-depth 5 --max-size 262144
# Ignore specific directories
dirmd -o output.md ~/repos/project --ignore __pycache__ --ignore .venv
# Skip additional file extensions
dirmd -o output.md ~/repos/project --extensions .log --extensions .tmp
# Vertical slices with overwrite
dirmd -o docs.md ~/repos/project -f --vertical-slices
# Generate, then upload to default remote location
dirmd -o docs.md ~/repos/project --proton-drive
# Generate, then upload to a custom remote location
dirmd -o docs.md ~/repos/project --proton-drive --drive-path /my-files/projects/docs.md
# Overwrite existing local file and upload to Drive
dirmd -o docs.md ~/repos/project -f --proton-drive
## Output Format
Produces markdown with:
1. Absolute path as H1 header with `[ROOT]` or `[SLICE]` marker
2. ASCII directory tree (indented with `+-` and `|` characters)
3. Vertical slices index table (sliced mode only)
4. All text files with content in fenced code blocks
5. Explicit `--- FILE: ---` and `--- END FILE ---` delimiters with byte and line counts
6. Language detection from file extensions
Example output structure (non-sliced mode):
# /home/user/repos/myproject [ROOT]
## Directory Tree
~~~
myproject/
+- cmd/
| +- main.go
+- internal/
| +- config.go
~~~
## Contents
--- FILE: ./cmd/main.go (45 bytes, 3 lines) ---
~~~go
package main
func main() {}
~~~
--- END FILE ---
Note: Uses tilde fences (~~~) internally to avoid conflicts with nested backticks in source files.