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crossplane-0.5.8
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مشاهده بیشترتوضیحات
Reliable and fast NGINX configuration file parser.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | crossplane-0.5.8 |
| نام | crossplane |
| نسخه کتابخانه | 0.5.8 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Arie van Luttikhuizen |
| ایمیل نویسنده | aluttik@gmail.com |
| آدرس صفحه اصلی | https://github.com/nginxinc/crossplane |
| آدرس اینترنتی | https://pypi.org/project/crossplane/ |
| مجوز | Apache 2.0 |
<h1 align="center">crossplane</h1>
<h3 align="center">Reliable and fast NGINX configuration file parser and builder</h3>
<p align="center">
<a href="https://github.com/nginxinc/crossplane/actions/workflows/crossplane-ci.yml"><img src="https://github.com/nginxinc/crossplane/actions/workflows/crossplane-ci.yml/badge.svg"></a>
<a href="https://github.com/nginxinc/crossplane/releases"><img src="https://img.shields.io/github/release/nginxinc/crossplane.svg"></a>
<a href="https://pypi.python.org/pypi/crossplane"><img src="https://img.shields.io/pypi/l/crossplane.svg"></a>
<a href="https://pypi.python.org/pypi/crossplane"><img src="https://img.shields.io/pypi/pyversions/crossplane.svg"></a>
</p>
- [Install](#install)
- [Command Line Interface](#command-line-interface)
- [crossplane parse](#crossplane-parse)
- [crossplane build](#crossplane-build)
- [crossplane lex](#crossplane-lex)
- [crossplane format](#crossplane-format)
- [crossplane minify](#crossplane-minify)
- [Python Module](#python-module)
- [crossplane.parse()](#crossplaneparse)
- [crossplane.build()](#crossplanebuild)
- [crossplane.lex()](#crossplanelex)
- [Other Languages](#other-languages)
## Install
You can install both the [Command Line
Interface](#command-line-interface) and [Python Module](#python-module)
via:
pip install crossplane
## Command Line Interface
```
usage: crossplane <command> [options]
various operations for nginx config files
optional arguments:
-h, --help show this help message and exit
-V, --version show program's version number and exit
commands:
parse parses a json payload for an nginx config
build builds an nginx config from a json payload
lex lexes tokens from an nginx config file
minify removes all whitespace from an nginx config
format formats an nginx config file
help show help for commands
```
### crossplane parse
This command will take a path to a main NGINX config file as input, then
parse the entire config into the schema defined below, and dumps the
entire thing as a JSON payload.
```
usage: crossplane parse [-h] [-o OUT] [-i NUM] [--ignore DIRECTIVES]
[--no-catch] [--tb-onerror] [--single-file]
[--include-comments] [--strict]
filename
parses a json payload for an nginx config
positional arguments:
filename the nginx config file
optional arguments:
-h, --help show this help message and exit
-o OUT, --out OUT write output to a file
-i NUM, --indent NUM number of spaces to indent output
--ignore DIRECTIVES ignore directives (comma-separated)
--no-catch only collect first error in file
--tb-onerror include tracebacks in config errors
--combine use includes to create one single file
--single-file do not include other config files
--include-comments include comments in json
--strict raise errors for unknown directives
```
**Privacy and Security**
Since `crossplane` is usually used to create payloads that are sent to
different servers, it's important to keep security in mind. For that
reason, the `--ignore` option was added. It can be used to keep certain
sensitive directives out of the payload output entirely.
For example, we always use the equivalent of this flag in the [NGINX Amplify
Agent](https://github.com/nginxinc/nginx-amplify-agent/) out of respect
for our users'
privacy:
--ignore=auth_basic_user_file,secure_link_secret,ssl_certificate_key,ssl_client_certificate,ssl_password_file,ssl_stapling_file,ssl_trusted_certificate
#### Schema
**Response Object**
```js
{
"status": String, // "ok" or "failed" if "errors" is not empty
"errors": Array, // aggregation of "errors" from Config objects
"config": Array // Array of Config objects
}
```
**Config Object**
```js
{
"file": String, // the full path of the config file
"status": String, // "ok" or "failed" if errors is not empty array
"errors": Array, // Array of Error objects
"parsed": Array // Array of Directive objects
}
```
**Directive Object**
```js
{
"directive": String, // the name of the directive
"line": Number, // integer line number the directive started on
"args": Array, // Array of String arguments
"includes": Array, // Array of integers (included iff this is an include directive)
"block": Array // Array of Directive Objects (included iff this is a block)
}
```
<div class="note">
<div class="admonition-title">
Note
</div>
If this is an `include` directive and the `--single-file` flag was not
used, an `"includes"` value will be used that holds an Array of indices
of the configs that are included by this directive.
If this is a block directive, a `"block"` value will be used that holds
an Array of more Directive Objects that define the block context.
</div>
**Error Object**
```js
{
"file": String, // the full path of the config file
"line": Number, // integer line number the directive that caused the error
"error": String, // the error message
"callback": Object // only included iff an "onerror" function was passed to parse()
}
```
<div class="note">
<div class="admonition-title">
Note
</div>
If the `--tb-onerror` flag was used by crossplane parse, `"callback"`
will contain a string that represents the traceback that the error
caused.
</div>
#### Example
The main NGINX config file is at `/etc/nginx/nginx.conf`:
```nginx
events {
worker_connections 1024;
}
http {
include conf.d/*.conf;
}
```
And this config file is at `/etc/nginx/conf.d/servers.conf`:
```nginx
server {
listen 8080;
location / {
try_files 'foo bar' baz;
}
}
server {
listen 8081;
location / {
return 200 'success!';
}
}
```
So then if you run this:
crossplane parse --indent=4 /etc/nginx/nginx.conf
The prettified JSON output would look like this:
```js
{
"status": "ok",
"errors": [],
"config": [
{
"file": "/etc/nginx/nginx.conf",
"status": "ok",
"errors": [],
"parsed": [
{
"directive": "events",
"line": 1,
"args": [],
"block": [
{
"directive": "worker_connections",
"line": 2,
"args": [
"1024"
]
}
]
},
{
"directive": "http",
"line": 5,
"args": [],
"block": [
{
"directive": "include",
"line": 6,
"args": [
"conf.d/*.conf"
],
"includes": [
1
]
}
]
}
]
},
{
"file": "/etc/nginx/conf.d/servers.conf",
"status": "ok",
"errors": [],
"parsed": [
{
"directive": "server",
"line": 1,
"args": [],
"block": [
{
"directive": "listen",
"line": 2,
"args": [
"8080"
]
},
{
"directive": "location",
"line": 3,
"args": [
"/"
],
"block": [
{
"directive": "try_files",
"line": 4,
"args": [
"foo bar",
"baz"
]
}
]
}
]
},
{
"directive": "server",
"line": 8,
"args": [],
"block": [
{
"directive": "listen",
"line": 9,
"args": [
"8081"
]
},
{
"directive": "location",
"line": 10,
"args": [
"/"
],
"block": [
{
"directive": "return",
"line": 11,
"args": [
"200",
"success!"
]
}
]
}
]
}
]
}
]
}
```
#### crossplane parse (advanced)
This tool uses two flags that can change how `crossplane` handles
errors.
The first, `--no-catch`, can be used if you'd prefer that crossplane
quit parsing after the first error it finds.
The second, `--tb-onerror`, will add a `"callback"` key to all error
objects in the JSON output, each containing a string representation of
the traceback that would have been raised by the parser if the exception
had not been caught. This can be useful for logging purposes.
### crossplane build
This command will take a path to a file as input. The file should
contain a JSON representation of an NGINX config that has the structure
defined above. Saving and using the output from `crossplane parse` to
rebuild your config files should not cause any differences in content
except for the formatting.
```
usage: crossplane build [-h] [-d PATH] [-f] [-i NUM | -t] [--no-headers]
[--stdout] [-v]
filename
builds an nginx config from a json payload
positional arguments:
filename the file with the config payload
optional arguments:
-h, --help show this help message and exit
-v, --verbose verbose output
-d PATH, --dir PATH the base directory to build in
-f, --force overwrite existing files
-i NUM, --indent NUM number of spaces to indent output
-t, --tabs indent with tabs instead of spaces
--no-headers do not write header to configs
--stdout write configs to stdout instead
```
### crossplane lex
This command takes an NGINX config file, splits it into tokens by
removing whitespace and comments, and dumps the list of tokens as a JSON
array.
```
usage: crossplane lex [-h] [-o OUT] [-i NUM] [-n] filename
lexes tokens from an nginx config file
positional arguments:
filename the nginx config file
optional arguments:
-h, --help show this help message and exit
-o OUT, --out OUT write output to a file
-i NUM, --indent NUM number of spaces to indent output
-n, --line-numbers include line numbers in json payload
```
#### Example
Passing in this NGINX config file at `/etc/nginx/nginx.conf`:
```nginx
events {
worker_connections 1024;
}
http {
include conf.d/*.conf;
}
```
By running:
crossplane lex /etc/nginx/nginx.conf
Will result in this JSON
output:
```js
["events","{","worker_connections","1024",";","}","http","{","include","conf.d/*.conf",";","}"]
```
However, if you decide to use the `--line-numbers` flag, your output
will look
like:
```js
[["events",1],["{",1],["worker_connections",2],["1024",2],[";",2],["}",3],["http",5],["{",5],["include",6],["conf.d/*.conf",6],[";",6],["}",7]]
```
### crossplane format
This is a quick and dirty tool that uses [crossplane
parse](#crossplane-parse) internally to format an NGINX config file.
It serves the purpose of demonstrating what you can do with `crossplane`'s
parsing abilities. It is not meant to be a fully fleshed out, feature-rich
formatting tool. If that is what you are looking for, then you may want to
look writing your own using crossplane's Python API.
```
usage: crossplane format [-h] [-o OUT] [-i NUM | -t] filename
formats an nginx config file
positional arguments:
filename the nginx config file
optional arguments:
-h, --help show this help message and exit
-o OUT, --out OUT write output to a file
-i NUM, --indent NUM number of spaces to indent output
-t, --tabs indent with tabs instead of spaces
```
### crossplane minify
This is a simple and fun little tool that uses [crossplane
lex](#crossplane-lex) internally to remove as much whitespace from an
NGINX config file as possible without affecting what it does. It can't
imagine it will have much of a use to most people, but it demonstrates
the kinds of things you can do with `crossplane`'s lexing abilities.
```
usage: crossplane minify [-h] [-o OUT] filename
removes all whitespace from an nginx config
positional arguments:
filename the nginx config file
optional arguments:
-h, --help show this help message and exit
-o OUT, --out OUT write output to a file
```
## Python Module
In addition to the command line tool, you can import `crossplane` as a
python module. There are two basic functions that the module will
provide you: `parse` and `lex`.
### crossplane.parse()
```python
import crossplane
payload = crossplane.parse('/etc/nginx/nginx.conf')
```
This will return the same payload as described in the [crossplane
parse](#crossplane-parse) section, except it will be Python dicts and
not one giant JSON string.
### crossplane.build()
```python
import crossplane
config = crossplane.build(
[{
"directive": "events",
"args": [],
"block": [{
"directive": "worker_connections",
"args": ["1024"]
}]
}]
)
```
This will return a single string that contains an entire NGINX config
file.
### crossplane.lex()
```python
import crossplane
tokens = crossplane.lex('/etc/nginx/nginx.conf')
```
`crossplane.lex` generates 2-tuples. Inserting these pairs into a list
will result in a long list similar to what you can see in the
[crossplane lex](#crossplane-lex) section when the `--line-numbers` flag
is used, except it will obviously be a Python list of tuples and not one
giant JSON string.
## Other Languages
- Go port by [@aluttik](https://github.com/aluttik):
<https://github.com/aluttik/go-crossplane>
- Ruby port by [@gdanko](https://github.com/gdanko):
<https://github.com/gdanko/crossplane>
نحوه نصب
نصب پکیج whl crossplane-0.5.8:
pip install crossplane-0.5.8.whl
نصب پکیج tar.gz crossplane-0.5.8:
pip install crossplane-0.5.8.tar.gz