This is an account of the things that I had to do to set up a full node for Dogecoin. This Gist will remind future me how to perform this task :)
System requirements
sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-program-options-dev libboost-test-dev libboost-thread-dev
System variable
cd ~
Disclaimer: If you use the following, it is entirely at your own risk.
System requirements
sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-program-options-dev libboost-test-dev libboost-thread-dev
System variable
The goal of this gist is to show how to use a CentOS7 system (with root access), to create a static compiled binary which can be copied over to, and used on, a CentOS7 system (with no root access).
Question: Why would we want to do this?
Answer: In some cases you might want to use tesseract on a machine via a cloud provider. For security reasons, specific machines on a specific cloud provider's infrastructure will not allow root access to the remove guest (you).
Solution: What we are about to do is log into a CentOS7 machine where we do have root access (this can be any machine i.e. a VM on your local machine etc.). We install all of the dependencies and create sufficuent executables on the machine with root access. We then copy just the tesseract executable over to the machine with no root access and make sure that the executables are in the no root access machine's path. Voilà!
| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> | |
| <title>Image processing</title> | |
| <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous"> | |
| <script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script> | |
| <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script> |
| ["tower", "towered", "towering", "towers", "towing", "towne", "townes", "townley", "townsend", "townsfolk", "townshend", "township", "townships", "townsman", "townsmen", "townspeople", "toxic", "toy", "toyed", "toying", "toys", "tra", "trabajo", "trabajos", "trac", "trace", "traceable", "traced", "tracer", "tracery", "traces", "tracht", "trachten", "trachtte", "tracing", "track", "tracked", "tracking", "trackless", "tracks", "tract", "tractable", "traction", "tracts", "tracy", "tracys", "trad", "traddles", "trade", "traded", "trademark", "trader", "trades", "tradesman", "tradesmans", "tradesmen", "tradesmens", "tradespeople", "trading", "tradition", "traditional", "traditionally", "traditionary", "traditions", "traduced", "traduction", "traduire", "traduit", "trae", "traegt", "traenen", "traer", "traf", "trafalgar", "trafen", "traffic", "trafficking", "trafford", "trage", "tragedian", "tragedians", "tragedies", "tragedy", "tragen", "tragic", "tragical", "tragically", "tragique", "tragischen", "tragoedie", "tr |
| // Paste this into chrome console | |
| var buffer_1 = new ArrayBuffer(50000); | |
| var buffer_2 = new ArrayBuffer(1000000); | |
| var needle = new Uint8Array(buffer_1); | |
| var haystack = new Uint8Array(buffer_2); | |
| needle.fill(111) | |
| haystack.fill(222) | |
| needle_length = needle.length; | |
| haystack_length = haystack.length; | |
| needle_length_string = needle_length.toString(); |
| [package] | |
| name = "rotate_an_image" | |
| version = "0.1.0" | |
| authors = ["tpmccallum <[email protected]>"] | |
| edition = "2018" | |
| # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html | |
| [dependencies] | |
| image = { version = "0.23.0", default-features = false, features = ["jpeg", "png", "gif"] } |
| use image::Rgba; | |
| use image::ImageBuffer; | |
| use image::DynamicImage; | |
| use imageproc::geometric_transformations::Interpolation; | |
| use image::{ImageOutputFormat, GenericImageView, ImageFormat}; | |
| use imageproc::geometric_transformations::rotate_about_center; | |
| fn main() { | |
| let dyn_img = image::open("/Users/tpmccallum/Documents/cat.png").unwrap(); | |
| let (w,h) = dyn_img.dimensions(); |
| function searchBytes(_haystack_array_buffer, _needle_array_buffer, _wasm_id, _function_name) { | |
| return new Promise(function(resolve, reject) { | |
| var needle = new Uint8Array(_needle_array_buffer); | |
| var haystack = new Uint8Array(_haystack_array_buffer); | |
| needle_length = needle.length; | |
| haystack_length = haystack.length; | |
| needle_length_string = needle_length.toString(); | |
| for (i = needle_length_string.length; i < 10; i++) { | |
| needle_length_string = "0" + needle_length_string; | |
| } |
| function isSubset(haystack, needle) { | |
| return new Promise(function(resolve, reject) { | |
| let n = needle.length, | |
| m = haystack.length, | |
| d = m - n; | |
| outer: for (let i = 0; i <= d; ++i) { | |
| for (let j = 0; j < n; ++j) { | |
| if (needle[j] !== haystack[i + j]) { | |
| continue outer | |
| } |