Browse Source

Implements most basic template. With just a date.

tags/0.1.0^2
Bèr Kessels 2 months ago
parent
commit
06210e2ca7
5 changed files with 616 additions and 1 deletions
  1. 542
    0
      Cargo.lock
  2. 3
    0
      Cargo.toml
  3. 26
    1
      src/main.rs
  4. 1
    0
      templates/simple.j2
  5. 44
    0
      tests/cli.rs

+ 542
- 0
Cargo.lock View File

@@ -27,20 +27,132 @@ version = "1.0.1"
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+ 3
- 0
Cargo.toml View File

@@ -8,7 +8,10 @@ edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
chrono = "0.4"
tera = "1.5.0"

[dev-dependencies]
assert_cmd = "0.10"
predicates = "1"
tempfile = "3"

+ 26
- 1
src/main.rs View File

@@ -1,3 +1,28 @@
use chrono::Local;
use tera::{Context, Tera};

fn main() {
println!("Hello, world!");
let filename = std::env::args().nth(1).expect("No template given");
let template = std::fs::read_to_string(filename).expect("No such file or directory");

let tera = match Tera::one_off(&template, &context(), true) {
Ok(t) => t,
Err(e) => {
println!("Parsing error: {}", e);
::std::process::exit(1);
}
};

println!("{}", tera);
}

fn context() -> Context {
let mut context = Context::new();
let time = format!("{}", Local::now().format("%X"));
let date = format!("{}", Local::today().format("%F"));

context.insert("date", &date);
context.insert("time", &time);

context
}

+ 1
- 0
templates/simple.j2 View File

@@ -0,0 +1 @@
Today is {{ date }}\n Now is {{ time }}

+ 44
- 0
tests/cli.rs View File

@@ -0,0 +1,44 @@
use assert_cmd::prelude::*; // Adds methods on commands
use chrono::Local; // Allows to fetch local dates to match against
use predicates::prelude::*; // Allows easier asssertions
use std::io::Write; // Writes into files
use std::process::Command; // Runs programs
use tempfile::NamedTempFile; // Creates tempfiles

#[test]
fn missing_template_name_test() -> Result<(), Box<dyn std::error::Error>> {
let mut cmd = Command::cargo_bin("blek")?;
cmd.assert()
.failure()
.stderr(predicate::str::contains("No template given"));

Ok(())
}

#[test]
fn file_doesnt_exist_test() -> Result<(), Box<dyn std::error::Error>> {
let mut cmd = Command::cargo_bin("blek")?;
cmd.arg("notatemplate");
cmd.assert()
.failure()
.stderr(predicate::str::contains("No such file or directory"));

Ok(())
}

#[test]
fn with_predefined_variables() -> Result<(), Box<dyn std::error::Error>> {
let mut file = NamedTempFile::new()?;
// We need to escape the {{, with two more {{.
writeln!(file, "Today is {{{{ date }}}}\n Now is {{{{ time }}}}")?;

let mut cmd = Command::cargo_bin("blek")?;
cmd.arg(file.path());

let today = Local::now().format("%X");
cmd.assert()
.success()
.stdout(predicate::str::contains(format!("Now is {}", today)));

Ok(())
}

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