meta-tech/ykre
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refact + add colorized

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a-Sansara 2020-10-12 01:04:40 +02:00
parent 035bb07c9a
commit ca3c24b093
9 changed files with 178 additions and 79 deletions
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5
Cargo.toml
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@ -1,9 +1,9 @@
[package]
name = "ykre"
version = "0.1.0"
version = "0.2.0"
authors = ["a-Sansara <dev]at[pluie]dot[org>"]
edition = "2018"
description = "Ykre is Yaml Kubernetes Resource Extractor"
description = "Ykre stand for Yaml Kubernetes Resource Extractor"
license = "MIT"
readme = "README.md"
keywords = ["cli", "yaml", "kubernetes", "kustomize"]
@ -13,3 +13,4 @@ categories = ["command-line-utilities"]
[dependencies]
yaml-rust = "0.4"
colored = "2"

6
README.md
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@ -3,15 +3,15 @@
**Ykre** is a small cli program written in rust wich purpose is to extract from a list
of yaml documents, documents matching a specified condition. **Ykre** goal is to find
specific Kubernetes Resource from the kustomize output.
**Ykre** stands for **Y**aml **K**ubernetes **R**esources **E**ctractor.
**Ykre** stands for **Y**aml **K**ubernetes **R**esources **E**xtractor.
## Install
from a debian package :
``` 
wget -q https://github.com/pluie-org/ykre/raw/master/dist/ykre_0.1.0_amd64.deb
sudo apt install ./ykre_0.1.0_amd64.deb
wget -q https://github.com/pluie-org/ykre/raw/master/dist/ykre_0.2.0_amd64.deb
sudo apt install ./ykre_0.2.0_amd64.deb
```
via Cargo

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29
src/main.rs
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@ -1,29 +1,8 @@
extern crate yaml_rust;
extern crate colored;
pub mod ykre;
use std::io;
use std::panic;
const PANIC_BYPASS_FILE : &str = "src/ykre/pipin.rs";
const PANIC_BYPASS_LINE : u32 = 9;
fn main() -> io::Result<()> {
panic::set_hook(Box::new(|_info| {
let mut bypass :bool = false;
if let Some(location) = &_info.location() {
bypass = location.file() == PANIC_BYPASS_FILE && location.line() == PANIC_BYPASS_LINE;
}
if !bypass {
//~ println!("{:?}", &_info);
if let Some(s) = &_info.payload().downcast_ref::<&str>() {
if s.len() > 1 {
println!("{}", s);
}
}
}
}));
ykre::run();
Ok(())
fn main() -> std::io::Result<()> {
ykre::run()
}

86
src/ykre.rs
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@ -1,56 +1,52 @@
mod yaml;
mod pipin;
mod app;
mod echo;
mod color;
pub use self::yaml::YamlDocument;
pub use self::pipin::{spawn_stdin, sleep};
pub use self::app::{run};
pub use self::pipin::*;
pub use self::echo::*;
pub use self::color::*;
pub use self::app::run;
const YKRE_LIMIT_ATTEMPT : u64 = 900;
const YKRE_SLEEP_START : u64 = 50;
const YKRE_SLEEP_DATA : u64 = 1;
const YKRE_SLEEP_NODATA : u64 = 1;
const YKRE_DEFAULT_DEF : &str = "metadata.name";
const YKRE_ERROR_NOTFOUND : &str = r"
:: Ykre ::
error : no match found for specified pattern
";
const YKRE_ERROR_INVALID : &str = r"
:: Ykre ::
error : invalid parameter. type ykre for usage
";
const YKRE_ERROR_NOPIPE : &str = r"
:: Ykre ::
error : you must send data using pipe
";
const YKRE_HELP : &str = r"
-----------------------------------------------------------------------------------
:: Ykre :: v0.1 license : MIT - author : a-Sansara
-----------------------------------------------------------------------------------
const BG : Rgb = Rgb { r: 30, g: 85, b:125 };
const CSEP : Rgb = Rgb { r: 30, g: 85, b:125 };
const CTITLE : Rgb = Rgb { r:255, g:220, b:190 };
const CTITLESEP : Rgb = Rgb { r:255, g:175, b: 35 };
const CKEY1 : Rgb = Rgb { r: 23, g:141, b: 84 };
const CVAL1 : Rgb = Rgb { r:149, g:197, b:157 };
const CKEY2 : Rgb = Rgb { r:237, g:214, b:140 };
const CVAL2 : Rgb = Rgb { r:238, g:194, b: 55 };
const CTEXT : Rgb = Rgb { r:190, g:162, b:216 };
const CPROG : Rgb = Rgb { r:255, g:255, b:255 };
const COPTSEP : Rgb = Rgb { r:255, g:151, b: 75 };
//~ const COPT : Rgb = Rgb { r: 23, g:141, b: 84 };
const CARG : Rgb = Rgb { r: 90, g:205, b:255 };
const CUSAGE : Rgb = Rgb { r:238, g:194, b: 55 };
const CSTR : Rgb = Rgb { r: 66, g:135, b: 99 };
const CCOM : Rgb = Rgb { r:105, g:103, b:149 };
const CERR : Rgb = Rgb { r:175, g: 37, b: 21 };
const CERRMSG : Rgb = Rgb { r:210, g: 99, b: 86 };
const WIDTH : usize = 82;
const PANIC_BYPASS_LINE : u32 = 9;
const PANIC_BYPASS_FILE : &str = "src/ykre/pipin.rs";
const YKRE_AUTHOR : &str = "a-Sansara";
const YKRE_VERSION : &str = "0.2";
const YKRE_LICENSE : &str = "MIT";
const YKRE_NAME : &str = "Ykre";
const YKRE_DEFAULT_DEF : &str = "metadata.name";
const YKRE_LIMIT_ATTEMPT : u64 = 1500;
const YKRE_SLEEP_START : u64 = 50;
const YKRE_SLEEP_DATA : u64 = 1;
const YKRE_SLEEP_NODATA : u64 = 1;
const YKRE_ERROR_NOTFOUND : &str = "no match found for specified pattern";
const YKRE_ERROR_INVALID : &str = "invalid parameter. Type ykre for help";
const YKRE_ERROR_NOPIPE : &str = "you must send data using pipe. Type ykre for help";
const YKRE_DESCRIPTION : &str = r"
Ykre is a small program written in `rust` wich purpose is to extract from a list
of yaml documents, documents matching a specified condition. Ykre goal is to find
specific Kubernetes Resource from the kustomize output.
Ykre stands for Yaml Kubernetes Resources Ectractor.
Usage :
ykre SEARCH [DEF]
you MUST use pipe with ykre command
SEARCH - value of kubernetes resource name
DEF - the yaml node to look for
(default : 'metadata.name', dot is the separator for embed nodes)
ex :
# display content of the kubernetes resource 'myResourceName'
cat kubresources.yaml | ykre 'myResourceName'
# write content of the kubernetes resource 'pv-dump' into a file
kustomize build ./config/volumes/local | ykre 'pv-dump' > ./tmp.yaml
# retriew kubernetes pv resources matching 2Gi disk capacity
kustomize build ./config/volumes/dev | ykre 2Gi spec.capacity.storage
Ykre stands for Yaml Kubernetes Resources Extractor.
";

36
src/ykre/app.rs
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@ -1,5 +1,6 @@
use std::panic;
use std::env;
use std::io;
use std::sync::mpsc::TryRecvError;
use crate::ykre::*;
@ -43,11 +44,15 @@ pub fn get_data(buf :&mut String, limit :u32) -> bool {
return has_data
}
pub fn run() {
pub fn run() -> io::Result<()> {
set_panic();
let args: Vec<String> = env::args().collect();
if args.len() == 1 {
println!("{}", YKRE_HELP);
return
title(YKRE_NAME, YKRE_VERSION, YKRE_LICENSE, YKRE_AUTHOR);
description(YKRE_DESCRIPTION);
usage();
example();
return Ok(());
}
else if args.len() > 1 && args.len() <= 3 {
@ -59,9 +64,32 @@ pub fn run() {
};
let limit : u32 = env::var("YKRE_LIMIT_ATTEMPT").unwrap_or(format!("{}", YKRE_LIMIT_ATTEMPT).to_owned()).parse::<u32>().unwrap();
if get_data(&mut buf, limit) {
return find(search, def, buf);
find(search, def, buf);
return Ok(());
}
panic!(YKRE_ERROR_NOPIPE)
}
panic!(YKRE_ERROR_INVALID)
}
pub fn set_panic() {
panic::set_hook(Box::new(|_info| {
let mut bypass :bool = false;
if let Some(location) = &_info.location() {
bypass = location.file() == PANIC_BYPASS_FILE && location.line() == PANIC_BYPASS_LINE;
}
if !bypass {
//~ println!("{:?}", &_info);
if let Some(s) = &_info.payload().downcast_ref::<&str>() {
if s.len() > 1 {
title(YKRE_NAME, YKRE_VERSION, YKRE_LICENSE, YKRE_AUTHOR);
perror(s);
if *s != &YKRE_ERROR_NOTFOUND {
usage();
println!("");
}
}
}
}
}));
}

19
src/ykre/color.rs Normal file
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@ -0,0 +1,19 @@
use colored::*;
pub struct Rgb {
pub r: u8,
pub g: u8,
pub b: u8,
}
impl Rgb {
pub fn new(r: u8, g: u8, b: u8) -> Self {
Self { r, g, b }
}
pub fn fg(self, label: &str) -> ColoredString {
label.truecolor(self.r, self.g, self.b)
}
pub fn bg(self, label: &str) -> ColoredString {
label.on_truecolor(self.r, self.g, self.b)
}
}

76
src/ykre/echo.rs Normal file
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@ -0,0 +1,76 @@
use crate::ykre::*;
use colored::*;
use std::borrow::Cow;
pub fn title(label :&str, version :&str, license: &str, author :&str) {
let space = 42+version.len()+label.len()+license.len()+author.len();
let sep = format!("{}", CSEP.fg(&"―".repeat(WIDTH+1)));
let titlesep = CTITLESEP.fg(" :: ");
let ptitle = BG.bg(&format!("{}{}{}", titlesep, CTITLE.fg(label), titlesep)).bold();
println!("{}" , sep);
print! (" {} " , ptitle);
print! ("{}" , keyval("version", version, CKEY1, CVAL1).bold());
print! ("{}" , " ".repeat(WIDTH-space));
print! ("{} " , keyval("license", license, CKEY1, CVAL1).bold());
println!("{}" , keyval("author", author, CKEY2, CVAL2).bold());
println!("{}" , sep);
}
pub fn keyval (key :&str, val :&str, ck : Rgb, cv : Rgb) -> Cow<'static, str> {
format!("{} {}", ck.fg(&format!("{} :", key)), cv.fg(val)).into()
}
pub fn description(description :&str) {
println!(" {}", CTEXT.fg(description));
}
pub fn usage() {
let space_arg : usize = 11;
let arg1 : &str = "SEARCH";
let arg2 : &str = "DEF";
println!(" {} :", CUSAGE.fg("Usage").bold());
println!("");
println!(" {}", format!("{} {} {}{}{}",
CPROG.fg(&YKRE_NAME.to_lowercase()),
CARG.fg(&arg1),
COPTSEP.fg("["),
CARG.fg(&arg2),
COPTSEP.fg("]")
).bold());
println!("");
println!(" {}", CTEXT.fg("you MUST use pipe with ykre command"));
println!("");
print! ("{}{} : ", " ".repeat(space_arg-arg1.len()), CARG.fg(arg1).bold());
println!("{}" , CTEXT.fg("value of matching yaml node (kubernetes resource name)"));
println!("");
print! ("{}{} : ", " ".repeat(space_arg-arg2.len()), CARG.fg(arg2).bold());
println!("{}" , CTEXT.fg("the yaml node to look for"));
println!("{}{}" , " ".repeat(space_arg+3), CTEXT.fg("(default : 'metadata.name', dot is the separator for embed nodes)"));
}
pub fn example() {
println!("");
println!(" {} :" , CUSAGE.fg("Examples").bold());
println!("");
println!(" {}", CCOM.fg("# display content of the kubernetes resource 'myResourceName'"));
print! (" {}", format!("{} {} {}", CPROG.fg("cat"), CARG.fg("'./kubresources.yaml'"), COPTSEP.fg("|")).bold());
println!(" {}" , format!("{} {}" , CPROG.fg("ykre"), CARG.fg("'myResourceName'")).bold());
println!("");
println!(" {}", CCOM.fg("# write content of the kubernetes resource 'pv-dump' into a file"));
print! (" {}", format!("{} {} {} {}", CPROG.fg("kustomize"), CARG.fg("build"), CARG.fg("'./config/volumes/local'"), COPTSEP.fg("|")).bold());
println!(" {}" , format!("{} {} {} {}", CPROG.fg("ykre"), CARG.fg("'pv-dump'"), COPTSEP.fg(">"), CSTR.fg("./tmp.yaml")).bold());
println!("");
println!(" {}", CCOM.fg("# retriew kubernetes pv resources matching 2Gi disk capacity"));
print! (" {}", format!("{} {} {} {}", CPROG.fg("kustomize"), CARG.fg("build"), CARG.fg("'./config/volumes/dev'"), COPTSEP.fg("|")).bold());
println!(" {}" , format!("{} {} {}" , CPROG.fg("ykre"), CARG.fg("'2Gi'"), CARG.fg("'spec.capacity.storage'")).bold());
println!("");
}
pub fn perror(msg: &str) {
println!("");
println!(" {} : {}", format!("{}", CERR.fg("error")).bold(), CERRMSG.fg(msg));
println!("");
}