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-rw-r--r--Cargo.lock4
-rw-r--r--crates/teraron/Cargo.toml13
-rw-r--r--crates/teraron/src/lib.rs109
-rw-r--r--crates/tools/Cargo.toml2
4 files changed, 4 insertions, 124 deletions
diff --git a/Cargo.lock b/Cargo.lock
index a4a07e004..79da84ebc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1024,6 +1024,7 @@ dependencies = [
1024[[package]] 1024[[package]]
1025name = "teraron" 1025name = "teraron"
1026version = "0.0.1" 1026version = "0.0.1"
1027source = "registry+https://github.com/rust-lang/crates.io-index"
1027dependencies = [ 1028dependencies = [
1028 "failure 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 1029 "failure 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
1029 "heck 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)", 1030 "heck 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1091,7 +1092,7 @@ dependencies = [
1091 "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)", 1092 "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
1092 "failure 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 1093 "failure 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
1093 "itertools 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)", 1094 "itertools 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
1094 "teraron 0.0.1", 1095 "teraron 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
1095 "walkdir 2.2.5 (registry+https://github.com/rust-lang/crates.io-index)", 1096 "walkdir 2.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
1096] 1097]
1097 1098
@@ -1380,6 +1381,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
1380"checksum synstructure 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "85bb9b7550d063ea184027c9b8c20ac167cd36d3e06b3a40bceb9d746dc1a7b7" 1381"checksum synstructure 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "85bb9b7550d063ea184027c9b8c20ac167cd36d3e06b3a40bceb9d746dc1a7b7"
1381"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8" 1382"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
1382"checksum tera 0.11.18 (registry+https://github.com/rust-lang/crates.io-index)" = "6c87cae42cc4fc480278c7583792cc5da2d51a25be916b7921cbb45c43063b8d" 1383"checksum tera 0.11.18 (registry+https://github.com/rust-lang/crates.io-index)" = "6c87cae42cc4fc480278c7583792cc5da2d51a25be916b7921cbb45c43063b8d"
1384"checksum teraron 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0d89ad4617d1dec55331067fadaa041e813479e1779616f3d3ce9308bf46184e"
1383"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096" 1385"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
1384"checksum text_unit 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc86da66d0b9aa8d359b0ec31b4342c6bc52637eadef05b91b098551a9f8e9" 1386"checksum text_unit 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc86da66d0b9aa8d359b0ec31b4342c6bc52637eadef05b91b098551a9f8e9"
1385"checksum textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "307686869c93e71f94da64286f9a9524c0f308a9e1c87a583de8e9c9039ad3f6" 1387"checksum textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "307686869c93e71f94da64286f9a9524c0f308a9e1c87a583de8e9c9039ad3f6"
diff --git a/crates/teraron/Cargo.toml b/crates/teraron/Cargo.toml
deleted file mode 100644
index 7ce9f1aa8..000000000
--- a/crates/teraron/Cargo.toml
+++ /dev/null
@@ -1,13 +0,0 @@
1[package]
2name = "teraron"
3version = "0.0.1"
4authors = ["Aleksey Kladov <[email protected]>"]
5repository = "https://github.com/rust-analyzer/teraron"
6description = "Genrate Rust code from a .tera template and a .ron data"
7license = "MIT OR Apache-2.0"
8
9[dependencies]
10failure = "0.1.2"
11tera = "0.11.18"
12ron = "0.4.0"
13heck = "0.3.0"
diff --git a/crates/teraron/src/lib.rs b/crates/teraron/src/lib.rs
deleted file mode 100644
index e464ea080..000000000
--- a/crates/teraron/src/lib.rs
+++ /dev/null
@@ -1,109 +0,0 @@
1//! A simple tool to generate rust code by passing a ron value
2//! to a tera template
3
4#[macro_use]
5extern crate failure;
6extern crate tera;
7extern crate ron;
8extern crate heck;
9
10use std::{
11 fs,
12 collections::HashMap,
13 path::Path,
14};
15
16use heck::{CamelCase, ShoutySnakeCase, SnakeCase};
17
18#[derive(Clone, Copy, PartialEq, Eq)]
19pub enum Mode {
20 Overwrite,
21 Verify,
22}
23
24pub use Mode::*;
25
26/// A helper to update file on disk if it has changed.
27/// With verify = false,
28pub fn update(path: &Path, contents: &str, mode: Mode) -> Result<(), failure::Error> {
29 match fs::read_to_string(path) {
30 Ok(ref old_contents) if old_contents == contents => {
31 return Ok(());
32 }
33 _ => (),
34 }
35 if mode == Verify {
36 bail!("`{}` is not up-to-date", path.display());
37 }
38 eprintln!("updating {}", path.display());
39 fs::write(path, contents)?;
40 Ok(())
41}
42
43pub fn generate(
44 template: &Path,
45 src: &Path,
46 mode: Mode,
47) -> Result<(), failure::Error> {
48 assert_eq!(
49 template.extension().and_then(|it| it.to_str()), Some("tera"),
50 "template file must have .rs.tera extension",
51 );
52 let file_name = template.file_stem().unwrap().to_str().unwrap();
53 assert!(
54 file_name.ends_with(".rs"),
55 "template file must have .rs.tera extension",
56 );
57 let tgt = template.with_file_name(file_name);
58 let template = fs::read_to_string(template)?;
59 let src: ron::Value = {
60 let text = fs::read_to_string(src)?;
61 ron::de::from_str(&text)?
62 };
63 let content = render(&template, src)?;
64 update(
65 &tgt,
66 &content,
67 mode,
68 )
69}
70
71pub fn render(
72 template: &str,
73 src: ron::Value,
74) -> Result<String, failure::Error> {
75 let mut tera = mk_tera();
76 tera.add_raw_template("_src", template)
77 .map_err(|e| format_err!("template parsing error: {:?}", e))?;
78 let res = tera.render("_src", &src)
79 .map_err(|e| format_err!("template rendering error: {:?}", e))?;
80 return Ok(res);
81}
82
83fn mk_tera() -> tera::Tera {
84 let mut res = tera::Tera::default();
85 res.register_filter("camel", |arg, _| {
86 Ok(arg.as_str().unwrap().to_camel_case().into())
87 });
88 res.register_filter("snake", |arg, _| {
89 Ok(arg.as_str().unwrap().to_snake_case().into())
90 });
91 res.register_filter("SCREAM", |arg, _| {
92 Ok(arg.as_str().unwrap().to_shouty_snake_case().into())
93 });
94 res.register_function("concat", Box::new(concat));
95 res
96}
97
98fn concat(args: HashMap<String, tera::Value>) -> tera::Result<tera::Value> {
99 let mut elements = Vec::new();
100 for &key in ["a", "b", "c"].iter() {
101 let val = match args.get(key) {
102 Some(val) => val,
103 None => continue,
104 };
105 let val = val.as_array().unwrap();
106 elements.extend(val.iter().cloned());
107 }
108 Ok(tera::Value::Array(elements))
109}
diff --git a/crates/tools/Cargo.toml b/crates/tools/Cargo.toml
index ffd0ab1a5..41b19c5c6 100644
--- a/crates/tools/Cargo.toml
+++ b/crates/tools/Cargo.toml
@@ -6,7 +6,7 @@ authors = ["Aleksey Kladov <[email protected]>"]
6publish = false 6publish = false
7 7
8[dependencies] 8[dependencies]
9teraron = { path = "../teraron"} 9teraron = "0.0.1"
10walkdir = "2.1.3" 10walkdir = "2.1.3"
11itertools = "0.7.8" 11itertools = "0.7.8"
12clap = "2.32.0" 12clap = "2.32.0"