the initial version

This commit is contained in:
vms 2019-03-24 01:32:04 +03:00
parent 721bac265b
commit ab5565839a
4 changed files with 426 additions and 4 deletions

18
.gitignore vendored
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@ -2,9 +2,19 @@
# will have compiled files and executables
/target/
# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
Cargo.lock
# These are backup files generated by rustfmt
**/*.rs.bk
# IntelliJ
.idea
.vscode
*.iml
# MacOS folder metadata
.DS_Store
# Text writing
*.scriv
# Temp
docs/checklist.md

267
Cargo.lock generated Normal file
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@ -0,0 +1,267 @@
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21
Cargo.toml Normal file
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[package]
name = "wasm-module-name"
version = "0.1.0"
authors = ["Fluence Labs"]
edition = "2018"
publish = true
description = "Console utility to show and change Wasm module names"
[profile.release]
debug = false
lto = true
panic = 'abort'
[[bin]]
name = "wasm-module-name"
[dependencies]
parity-wasm = { git = "https://github.com/fluencelabs/parity-wasm" }
clap = "2.32.0"
exitfailure = "0.5.1"
failure = "0.1.5"

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src/main.rs Normal file
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/*
* Copyright 2019 Fluence Labs Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#![warn(missing_docs)]
// TODO: replace unwrap with more nady error
// TODO: add some docs
use parity_wasm;
use parity_wasm::elements::{NameSection, ModuleNameSubsection, Serialize};
use clap::{App, Arg, SubCommand};
use exitfailure::ExitFailure;
use failure::err_msg;
const VERSION: &str = env!("CARGO_PKG_VERSION");
const AUTHORS: &str = env!("CARGO_PKG_AUTHORS");
const DESCRIPTION: &str = env!("CARGO_PKG_DESCRIPTION");
const MODULE_PATH: &str = "module_path";
const NEW_MODULE_NAME: &str = "new_module_name";
fn show_module_name_subcommand<'a, 'b>() -> App<'a, 'b> {
let arg = &[Arg::with_name(MODULE_PATH)
.required(true)
.takes_value(true)
.help("path to the wasm file")
];
SubCommand::with_name("show")
.about("Show Wasm file name")
.args(arg)
}
fn set_module_name_subcommand<'a, 'b>() -> App<'a, 'b> {
let args = &[
Arg::with_name(MODULE_PATH)
.required(true)
.takes_value(true)
.help("path to the Wasm file"),
Arg::with_name(NEW_MODULE_NAME)
.required(true)
.takes_value(true)
.help("a new module name"),
];
SubCommand::with_name("set")
.about("Set Wasm file name")
.args(args)
}
fn main() -> Result<(), ExitFailure> {
let app = App::new("Fluence wasm-module-name")
.version(VERSION)
.author(AUTHORS)
.about(DESCRIPTION)
.subcommand(show_module_name_subcommand())
.subcommand(set_module_name_subcommand());
match app.get_matches().subcommand() {
("show", Some(arg)) => {
let module_path = arg.value_of(MODULE_PATH).unwrap();
let module = parity_wasm::deserialize_file(module_path).unwrap();
let module = module.parse_names().unwrap();
let name_section = module.names_section();
let no_module_name: &str = "<no-name>";
let module_name = match name_section {
Some(name_section) => {
match name_section.module_name_subsection() {
Some(name_section) => name_section.name(),
None => no_module_name,
}
}
None => no_module_name,
};
println!("The module name {}", module_name);
Ok(())
},
("set", Some(args)) => {
let module_path = args.value_of(MODULE_PATH).unwrap();
let new_module_name = args.value_of(NEW_MODULE_NAME).unwrap();
let module = parity_wasm::deserialize_file(module_path).unwrap();
let mut module = module.parse_names().unwrap();
let name_section = module.names_section_mut();
let new_module_name_subsection = ModuleNameSubsection::new(new_module_name);
match name_section {
Some(mut name_section) =>
*name_section.module_name_subsection_mut() = Some(new_module_name_subsection),
None => {
let name_section = NameSection::new(Some(new_module_name_subsection), None, None);
let mut buffer = vec![];
name_section.serialize(&mut buffer).unwrap();
module.set_custom_section("name", buffer);
}
};
parity_wasm::serialize_to_file(module_path, module).unwrap();
Ok(())
},
c => Err(err_msg(format!("Unexpected command: {}", c.0)))?,
}
}