use curl::easy::Easy;
use error::Result;
use mustache::{self, Data, MapBuilder};
use serde_json;
use std::collections::BTreeMap;
use std::fmt;
use std::io::Cursor;
use std::time::Duration;
pub enum TemplateType {
Main,
Run,
Error,
Mit,
Apache,
Readme,
}
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct CrateInfo {
#[serde(rename = "crate")]
krate: Crate,
}
impl fmt::Display for CrateInfo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "crate: {}", self.krate)
}
}
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct Crate {
max_version: String,
}
impl fmt::Display for Crate {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "max_version: {}", self.max_version)
}
}
pub struct Templates {
clap: bool,
kvs: Data,
main: &'static str,
run: &'static str,
error: &'static str,
prefix: &'static str,
mit: Option<&'static str>,
apache: Option<&'static str>,
readme: Option<&'static str>,
query: bool,
}
impl Templates {
pub fn new(name: &str,
clap: bool,
mit: bool,
apache: bool,
readme: bool,
query: bool)
-> Templates {
let mut template = Templates {
clap: clap,
kvs: MapBuilder::new().insert_str("name", name).build(),
main: "",
run: "",
error: "",
prefix: "",
mit: None,
apache: None,
readme: None,
query: query,
};
if mit && apache {
template.prefix = PREFIX_BOTH;
}
if mit {
template.mit = Some(LICENSE_MIT);
if !apache {
template.prefix = PREFIX_MIT;
}
}
if apache {
template.apache = Some(LICENSE_APACHE);
if !mit {
template.prefix = PREFIX_APACHE;
}
}
if readme {
template.readme = Some(README);
}
if clap {
template.main = CLAP_MAIN_RS;
template.run = CLAP_RUN_RS;
template.error = CLAP_ERROR_RS;
} else {
template.main = DOCOPT_MAIN_RS;
template.run = DOCOPT_RUN_RS;
template.error = DOCOPT_ERROR_RS;
}
template
}
pub fn main(&self) -> Result<String> {
self.render(self.main)
}
pub fn run(&self) -> Result<String> {
self.render(self.run)
}
pub fn error(&self) -> Result<String> {
self.render(self.error)
}
pub fn prefix(&self) -> Result<String> {
self.render(self.prefix)
}
pub fn mit(&self) -> Option<&str> {
self.mit
}
pub fn apache(&self) -> Option<&str> {
self.apache
}
pub fn readme(&self) -> Option<Result<String>> {
if let Some(readme) = self.readme {
Some(self.render(readme))
} else {
None
}
}
pub fn has_license(&self) -> bool {
self.mit.is_some() || self.apache.is_some()
}
pub fn cargo_toml_readme(&self) -> &str {
CARGO_TOML_README
}
pub fn cargo_toml_both(&self) -> &str {
CARGO_TOML_BOTH
}
pub fn cargo_toml_mit(&self) -> &str {
CARGO_TOML_MIT
}
pub fn cargo_toml_apache(&self) -> &str {
CARGO_TOML_APACHE
}
pub fn add_deps(&self, deps: &mut BTreeMap<String, String>) {
if self.clap {
let (error_chain_latest, clap_latest) = if self.query {
(get_latest("error-chain").unwrap_or_else(|_| "0.10.0".to_string()),
get_latest("clap").unwrap_or_else(|_| "2.25.0".to_string()))
} else {
("0.10.0".to_string(), "2.25.0".to_string())
};
deps.insert("error-chain".to_string(), error_chain_latest);
deps.insert("clap".to_string(), clap_latest);
} else {
let (ec_latest, docopt_latest, sd_latest, s_latest) = if self.query {
(get_latest("error-chain").unwrap_or_else(|_| "0.10.0".to_string()),
get_latest("docopt").unwrap_or_else(|_| "0.8.1".to_string()),
get_latest("serde_derive").unwrap_or_else(|_| "1.0.9".to_string()),
get_latest("serde").unwrap_or_else(|_| "1.0.9".to_string()))
} else {
("0.10.0".to_string(),
"0.8.1".to_string(),
"1.0.9".to_string(),
"1.0.9".to_string())
};
deps.insert("serde_derive".to_string(), sd_latest);
deps.insert("serde".to_string(), s_latest);
deps.insert("error-chain".to_string(), ec_latest);
deps.insert("docopt".to_string(), docopt_latest);
}
}
fn render(&self, template_str: &str) -> Result<String> {
let template = mustache::compile_str(template_str)?;
let mut out = Cursor::new(Vec::new());
template.render_data(&mut out, &self.kvs)?;
Ok(String::from_utf8(out.into_inner())?)
}
}
fn get_latest(name: &str) -> Result<String> {
let crate_json = fetch_cratesio(name)?;
let crate_info: CrateInfo = serde_json::from_str(&crate_json)?;
Ok(crate_info.krate.max_version)
}
fn fetch_cratesio(path: &str) -> Result<String> {
let mut easy = Easy::new();
easy.url(&format!("{}/api/v1/crates/{}", REGISTRY_HOST, path))?;
easy.timeout(Duration::from_secs(5))?;
easy.get(true)?;
easy.accept_encoding("application/json")?;
let mut html = Vec::new();
{
let mut transfer = easy.transfer();
transfer
.write_function(|data| {
html.extend_from_slice(data);
Ok(data.len())
})?;
transfer.perform()?;
}
Ok(String::from_utf8(html)?)
}
const REGISTRY_HOST: &'static str = "https://crates.io";
const CARGO_TOML_README: &'static str = r#"README.md"#;
const CLAP_MAIN_RS: &'static str = r#"//! `{{ name }}` 0.1.0
#![deny(missing_docs)]
#[macro_use]
extern crate error_chain;
extern crate clap;
mod error;
mod run;
use std::io::{self, Write};
use std::process;
/// CLI Entry Point
fn main() {
match run::run() {
Ok(i) => process::exit(i),
Err(e) => {
writeln!(io::stderr(), "{}", e).expect("Unable to write to stderr!");
process::exit(1)
}
}
}"#;
const CLAP_RUN_RS: &'static str = r#"//! `{{ name }}` runtime
use clap::App;
use error::Result;
use std::io::{self, Write};
/// CLI Runtime
pub fn run() -> Result<i32> {
let _matches = App::new(env!("CARGO_PKG_NAME"))
.version(env!("CARGO_PKG_VERSION"))
.author(env!("CARGO_PKG_AUTHORS"))
.about("Prints 'Hello, Rustaceans!' to stdout")
.get_matches();
writeln!(io::stdout(), "Hello, Rustaceans!")?;
Ok(0)
}"#;
const CLAP_ERROR_RS: &'static str = r#"//! `{{ name }}` errors
error_chain!{
foreign_links {
Io(::std::io::Error);
}
}"#;
const DOCOPT_MAIN_RS: &'static str = r#"//! `{{ name }}` 0.1.0
#[macro_use]
extern crate error_chain;
#[macro_use]
extern crate serde_derive;
extern crate docopt;
mod error;
mod run;
use std::io::{self, Write};
use std::process;
/// CLI Entry Point
fn main() {
match run::run() {
Ok(i) => process::exit(i),
Err(e) => {
writeln!(io::stderr(), "{}", e).expect("Unable to write to stderr!");
process::exit(1)
}
}
}"#;
const DOCOPT_RUN_RS: &'static str = r#"//! `{{ name }}` runtime
use docopt::Docopt;
use error::Result;
use std::io::{self, Write};
/// Write the Docopt usage string.
const USAGE: &'static str = "
Usage: {{ name }} ( -h | --help )
{{ name }} ( -V | --version )
Options:
-h --help Show this screen.
-v --version Show version.
";
/// Command line arguments
#[derive(Debug, Deserialize)]
struct Args;
/// CLI Runtime
pub fn run() -> Result<i32> {
let _args: Args = Docopt::new(USAGE).and_then(|d| d.deserialize())?;
writeln!(io::stdout(), "Hello, Rustaceans!")?;
Ok(0)
}"#;
const DOCOPT_ERROR_RS: &'static str = r#"//! `{{ name }}` errors
error_chain!{
foreign_links {
Docopt(::docopt::Error);
Io(::std::io::Error);
}
}"#;
const CARGO_TOML_BOTH: &'static str = r#"MIT/Apache-2.0"#;
const PREFIX_BOTH: &'static str = r#"// Copyright (c) 2017 {{ name }} developers
//
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. All files in the project carrying such notice may not be copied,
// modified, or distributed except according to those terms.
"#;
const CARGO_TOML_MIT: &'static str = r#"MIT"#;
const PREFIX_MIT: &'static str = r#"// Copyright (c) 2017 {{ name }} developers
//
// Licensed under the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>.
// All files in the project carrying such notice may not be copied,
// modified, or distributed except according to those terms.
"#;
const CARGO_TOML_APACHE: &'static str = r#"Apache-2.0"#;
const PREFIX_APACHE: &'static str = r#"// Copyright (c) 2017 {{ name }} developers
//
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0>.
// All files in the project carrying such notice may not be copied,
// modified, or distributed except according to those terms.
"#;
const LICENSE_MIT: &'static str = r#"Copyright (c) 2016 The Rust Project Developers
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
"#;
const LICENSE_APACHE: &'static str = r#" Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
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the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
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"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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3. Grant of Patent License. Subject to the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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7. Disclaimer of Warranty. Unless required by applicable law or
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
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whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
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Licensed under the Apache License, Version 2.0 (the "License");
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See the License for the specific language governing permissions and
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"#;
const README: &'static str = r#"# {{ name }}
A Rust command line interface generated by `cargo-cli`.
"#;