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| 1 | +use std::path::{Path, PathBuf}; |
| 2 | + |
| 3 | +use anyhow::Context; |
| 4 | +use bedrock::Config; |
| 5 | +use futures::StreamExt; |
| 6 | +use lazy_static::lazy_static; |
| 7 | +use tokio::io::AsyncReadExt; |
| 8 | +use tokio_tar::Header; |
| 9 | + |
| 10 | +const BASE_DOCKER_SRC: &str = include_str!("../data/basalt.Dockerfile"); |
| 11 | +const INSTALL_SRC: &str = include_str!("../data/install.sh"); |
| 12 | +const ENTRY_SRC: &str = include_str!("../data/entrypoint.sh"); |
| 13 | + |
| 14 | +lazy_static! { |
| 15 | + static ref tmpl: tera::Tera = { |
| 16 | + let mut t = tera::Tera::default(); |
| 17 | + t.add_raw_template("dockerfile", BASE_DOCKER_SRC) |
| 18 | + .expect("Failed to register docker source template"); |
| 19 | + t.add_raw_template("install.sh", INSTALL_SRC) |
| 20 | + .expect("Failed to register install source template"); |
| 21 | + t.add_raw_template("entrypoint.sh", ENTRY_SRC) |
| 22 | + .expect("Failed to register init source template"); |
| 23 | + t |
| 24 | + }; |
| 25 | +} |
| 26 | + |
| 27 | +pub async fn build_with_output( |
| 28 | + output: &Option<PathBuf>, |
| 29 | + config_file: &Path, |
| 30 | + tag: Option<String>, |
| 31 | +) -> anyhow::Result<()> { |
| 32 | + let mut file = tokio::fs::File::open(config_file) |
| 33 | + .await |
| 34 | + .context("Failed to open config file")?; |
| 35 | + let mut config_content = String::new(); |
| 36 | + file.read_to_string(&mut config_content) |
| 37 | + .await |
| 38 | + .context("Failed to read config file to string")?; |
| 39 | + let cfg = bedrock::Config::from_str( |
| 40 | + &config_content, |
| 41 | + Some(config_file.to_str().context("Failed to get file path")?), |
| 42 | + ) |
| 43 | + .context("Failed to read configuration file")?; |
| 44 | + |
| 45 | + let mut tarball = tokio_tar::Builder::new(Vec::new()); |
| 46 | + |
| 47 | + let mut ctx = tera::Context::new(); |
| 48 | + ctx.insert("base_install", &make_base_install(&cfg)); |
| 49 | + ctx.insert("base_init", &make_base_init(&cfg)); |
| 50 | + if let Some(setup) = &cfg.setup { |
| 51 | + if let Some(install) = &setup.install { |
| 52 | + dbg!(install.to_string()); |
| 53 | + ctx.insert("custom_install", &install.trim()); |
| 54 | + } |
| 55 | + if let Some(init) = &setup.init { |
| 56 | + dbg!(init.to_string()); |
| 57 | + ctx.insert("custom_init", init.trim()); |
| 58 | + } |
| 59 | + } |
| 60 | + let install_content = tmpl |
| 61 | + .render("install.sh", &ctx) |
| 62 | + .context("Failed to render installation script")?; |
| 63 | + let entrypoint_content = tmpl |
| 64 | + .render("entrypoint.sh", &ctx) |
| 65 | + .context("Failed to render entrypoint script")?; |
| 66 | + dbg!(&install_content); |
| 67 | + let content = tmpl |
| 68 | + .render("dockerfile", &ctx) |
| 69 | + .context("Failed to render dockerfile")?; |
| 70 | + let config_header = make_header("config.toml", config_content.len() as u64, 0o644) |
| 71 | + .context("Failed to create config header")?; |
| 72 | + tarball |
| 73 | + .append(&config_header, config_content.as_bytes()) |
| 74 | + .await |
| 75 | + .context("Failed to archive config.toml")?; |
| 76 | + let dockerfile_header = make_header("Dockerfile", content.len() as u64, 0o644) |
| 77 | + .context("Failed to create dockerfile header")?; |
| 78 | + tarball |
| 79 | + .append(&dockerfile_header, content.as_bytes()) |
| 80 | + .await |
| 81 | + .context("Failed to append dockerfile to tarball")?; |
| 82 | + let install_header = make_header("install.sh", install_content.len() as u64, 0o644) |
| 83 | + .context("Failed to create install header")?; |
| 84 | + tarball |
| 85 | + .append(&install_header, install_content.as_bytes()) |
| 86 | + .await |
| 87 | + .context("Failed to append install.sh to tarball")?; |
| 88 | + let entrypoint_header = make_header("entrypoint.sh", entrypoint_content.len() as u64, 0o644) |
| 89 | + .context("Failed to create entrypoint header")?; |
| 90 | + tarball |
| 91 | + .append(&entrypoint_header, entrypoint_content.as_bytes()) |
| 92 | + .await |
| 93 | + .context("Failed to append entrypoint.sh to tar")?; |
| 94 | + let out_data = tarball |
| 95 | + .into_inner() |
| 96 | + .await |
| 97 | + .context("Failed to finish tarball")?; |
| 98 | + match output { |
| 99 | + Some(out_path) => { |
| 100 | + tokio::fs::write(out_path, out_data) |
| 101 | + .await |
| 102 | + .context("Failed to write data")?; |
| 103 | + } |
| 104 | + None => { |
| 105 | + let docker = bollard::Docker::connect_with_local_defaults() |
| 106 | + .context("Failed to connect to docker")?; |
| 107 | + let tag = tag.unwrap_or(format!("bslt-{}", cfg.hash())); |
| 108 | + let stream = docker.build_image( |
| 109 | + bollard::image::BuildImageOptions { |
| 110 | + dockerfile: "Dockerfile", |
| 111 | + t: &tag, |
| 112 | + rm: true, |
| 113 | + ..Default::default() |
| 114 | + }, |
| 115 | + None, |
| 116 | + Some(out_data.into()), |
| 117 | + ); |
| 118 | + |
| 119 | + // Process the stream |
| 120 | + tokio::pin!(stream); |
| 121 | + while let Some(item) = stream.next().await { |
| 122 | + let msg = item.context("Failed to perform docker build")?; |
| 123 | + if let Some(stream) = msg.stream { |
| 124 | + println!( |
| 125 | + "[BUILD] {}", |
| 126 | + stream.trim().replace("\n", " ").replace("\t", " ") |
| 127 | + ); |
| 128 | + } |
| 129 | + } |
| 130 | + } |
| 131 | + }; |
| 132 | + Ok(()) |
| 133 | +} |
| 134 | + |
| 135 | +fn make_base_install(cfg: &Config) -> String { |
| 136 | + cfg.languages |
| 137 | + .iter() |
| 138 | + .map(|e| match e { |
| 139 | + bedrock::language::Language::BuiltIn { language, version } => { |
| 140 | + language.install_command(version).unwrap_or("").to_owned() |
| 141 | + } |
| 142 | + _ => "".into(), |
| 143 | + }) |
| 144 | + .filter(|e| !e.is_empty()) |
| 145 | + .collect::<Vec<String>>() |
| 146 | + .join("\n") |
| 147 | + .trim() |
| 148 | + .to_owned() |
| 149 | +} |
| 150 | + |
| 151 | +fn make_base_init(cfg: &Config) -> String { |
| 152 | + cfg.languages |
| 153 | + .iter() |
| 154 | + .map(|e| match e { |
| 155 | + bedrock::language::Language::BuiltIn { language, version } => { |
| 156 | + language.init_command(version).unwrap_or("").to_owned() |
| 157 | + } |
| 158 | + _ => "".into(), |
| 159 | + }) |
| 160 | + .filter(|e| !e.is_empty()) |
| 161 | + .collect::<Vec<String>>() |
| 162 | + .join("\n") |
| 163 | + .trim() |
| 164 | + .to_owned() |
| 165 | +} |
| 166 | + |
| 167 | +fn make_header<P>(path: P, size: u64, mode: u32) -> anyhow::Result<Header> |
| 168 | +where |
| 169 | + P: AsRef<Path>, |
| 170 | +{ |
| 171 | + let mut header = tokio_tar::Header::new_gnu(); |
| 172 | + header |
| 173 | + .set_path(&path) |
| 174 | + .with_context(|| format!("Failed to set {} tar header", path.as_ref().display()))?; |
| 175 | + header.set_size(size); |
| 176 | + header.set_mode(mode); |
| 177 | + header.set_cksum(); |
| 178 | + Ok(header) |
| 179 | +} |
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