https://github.com/alexaandru/eol
endoflife.date Go wrapper cli
https://github.com/alexaandru/eol
endoflife endoflife-date eol
Last synced: 21 days ago
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endoflife.date Go wrapper cli
- Host: GitHub
- URL: https://github.com/alexaandru/eol
- Owner: alexaandru
- License: mit
- Created: 2025-08-10T17:18:34.000Z (about 2 months ago)
- Default Branch: main
- Last Pushed: 2025-08-28T15:53:14.000Z (about 1 month ago)
- Last Synced: 2025-08-28T18:29:54.099Z (about 1 month ago)
- Topics: endoflife, endoflife-date, eol
- Language: Go
- Homepage:
- Size: 549 KB
- Stars: 1
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# EndOfLife.date API Client
[](https://github.com/alexaandru/eol/actions/workflows/ci.yml)
A Go command-line tool for the [endoflife.date](https://endoflife.date) [API v1](https://endoflife.date/docs/api/v1/).
The endoflife.date API provides information about end-of-life dates and support lifecycles
for various products including operating systems, frameworks, databases, and other software products.
## Features
- **Complete API Coverage**: All endoflife.date API endpoints;
- **Zero Dependencies**: Uses only Go standard library;
- **Template Based**: Customizable output formatting;
- **Version Fallback**: Automatic fallback for versions (1.24.6 → 1.24 → 1);
- **JSON Output**: Machine-readable output for automation;
- **Shell Completion**: Bash and Zsh completion support;
- **Badge Creation**: As a side-kick, it can generate badges for
releases, color coded appropriately based on EOL ,
EOAS  or maintained .
## Installation
```bash
go install github.com/alexaandru/eol@latest # or
go get -tool github.com/alexaandru/eol
```
You can enable command-line completion:
```bash
eol completion-bash > ~/.bash_completion.d/eol # or, for zsh
eol completion-zsh > ~/.zsh/autoload/_eol && echo "compdef _eol eol" >> ~/.zshrc
```
## Usage
### Commands Overview
```bash
# Get help and version
eol help
eol version
# List products
eol products
eol products-full # Full info. Preferably use products to get a summary
# and reduce the amount of data transferred.
# Product information
eol product ubuntu
eol release ubuntu 22.04
eol release go 1.24.6 # Will try 1.24.6 → 1.24 → 1
eol latest ubuntu
eol release-badge go 1.21 # Generate SVG badge with color-coded status
eol release-badge ubuntu 22.04 # Width adjusts to text length automatically
# Browse by category/tag
eol categories # List categories
eol category os # Products in 'os' category
eol tags # List tags
eol tag canonical # Products with 'canonical' tag
# Identifiers
eol identifiers # List identifier types
eol identifier cpe # CPE identifiers
# Template management
eol templates-export # Export templates to default location
```
Most commands also support the following options:
```bash
# Output format
eol -f json # or text, the default
eol -f json product ubuntu | jq '.result.releases[0]'
# Custom, inline templates
eol -t '{{.name}}: {{.category}}' product ubuntu
eol -t '{{.name}}' latest go
eol -t '{{if .isMaintained}}✅ Active{{else}}💀 EOL{{end}}' latest terraform
# Custom, on disk templates
eol --templates-dir ~/my-templates templates-export # and edit as needed, then
eol --templates-dir ~/my-templates product go
```
### Template Customization
The tool uses Go [text/template](https://pkg.go.dev/text/template@go1.25.0), so
you can leverage all the capabilities of Go templates. Additionally, it provides
several custom template functions to make your life easier:
- `join (toStringSlice .tags) ", "` - Join string slices with separator;
- `toJSON .` - Convert to JSON format;
- `eolWithin "6mo" .eolFrom` - Check if EOL is within duration (supports mo, wk, d, h, m, s),
enabling proactive monitoring;
- `dict "key1" "value1" "key2" "value2"` - Create a dictionary;
- `toStringSlice .field` - Convert to string slice;
- `collect "fieldname" .slice` - Extract field from slice of objects for clean joining;
- `add .a .b` - Addition (integers);
- `mul .a .b` - Multiplication (integers);
- `exit 1` - Exit with error code (for scripting).
Note that while the cli itself will not exit with error on eol, etc. you can easily
control that via templates by leveraging the `exit` template function, i.e.:
```bash
eol release go 1.17 -t '{{if .isEol}}{{exit 1}}{{else if .isEoas}}{{exit 2}}{{end}}'
echo $? # Will be 1 if EOL, 2 if EOAS, 0 if maintained
```
### Version Fallback
The tool automatically tries version variants when a specific version isn't found:
```bash
# If 1.24.6 doesn't exist, it will try 1.24, then 1
eol release go 1.24.6
# If 3.11.5 doesn't exist, it will try 3.11, then 3
eol release python 3.11.5
```
## License
[MIT](LICENSE)