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offline build not possible right now closes #2139 #2141

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merged 1 commit into from
Dec 12, 2018
Merged

offline build not possible right now closes #2139 #2141

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86 changes: 45 additions & 41 deletions src/build/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -59,59 +59,61 @@ fn main() {
format!("{}{}", env::var("OUT_DIR").unwrap(), "/built.rs"),
);

install_web_wallet();
let web_wallet_install = install_web_wallet();
match web_wallet_install {
Ok(true) => {}
_ => println!(
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Note that this message will probably never be seen and thus we should probably consider deleting messaging in any case where the build script will return 0 status code.

"WARNING : Web wallet could not be installed due to {:?}",
web_wallet_install
),
}
}

fn download_and_decompress(target_file: &str) {
fn download_and_decompress(target_file: &str) -> Result<bool, Box<std::error::Error>> {
let req_path = format!("https://github.com/mimblewimble/grin-web-wallet/releases/download/{}/grin-web-wallet.tar.gz", WEB_WALLET_TAG);
let resp = reqwest::get(&req_path);
let mut resp = reqwest::get(&req_path)?;

// don't interfere if this doesn't work
if resp.is_err() {
println!("Warning: Failed to download grin-web-wallet. Web wallet will not be available");
return;
if !resp.status().is_success() {
return Ok(false);
}

let mut resp = resp.unwrap();
if resp.status().is_success() {
// read response
let mut out: Vec<u8> = vec![];
let r2 = resp.read_to_end(&mut out);
if r2.is_err() {
println!(
"Warning: Failed to download grin-web-wallet. Web wallet will not be available"
);
return;
}
// read response
let mut out: Vec<u8> = vec![];
resp.read_to_end(&mut out)?;

// Gunzip
let mut d = GzDecoder::new(&out[..]);
let mut decomp: Vec<u8> = vec![];
d.read_to_end(&mut decomp).unwrap();
// Gunzip
let mut d = GzDecoder::new(&out[..]);
let mut decomp: Vec<u8> = vec![];
d.read_to_end(&mut decomp)?;

// write temp file
let mut buffer = File::create(target_file.clone()).unwrap();
buffer.write_all(&decomp).unwrap();
buffer.flush().unwrap();
}
// write temp file
let mut buffer = File::create(target_file.clone())?;
buffer.write_all(&decomp)?;
buffer.flush()?;

Ok(true)
}

/// Download and unzip tagged web-wallet build
fn install_web_wallet() {
fn install_web_wallet() -> Result<bool, Box<std::error::Error>> {
let target_file = format!(
"{}/grin-web-wallet-{}.tar",
env::var("OUT_DIR").unwrap(),
env::var("OUT_DIR")?,
WEB_WALLET_TAG
);
let out_dir = env::var("OUT_DIR").unwrap();
let out_dir = env::var("OUT_DIR")?;
let mut out_path = PathBuf::from(&out_dir);
out_path.pop();
out_path.pop();
out_path.pop();

// only re-download if needed
println!("{}", target_file);
if !Path::new(&target_file).is_file() {
download_and_decompress(&target_file);
let success = download_and_decompress(&target_file)?;
if !success {
return Ok(false); // could not download and decompress
}
}

// remove old version
Expand All @@ -120,26 +122,28 @@ fn install_web_wallet() {
let _ = fs::remove_dir_all(remove_path);

// Untar
let file = File::open(target_file).unwrap();
let file = File::open(target_file)?;
let mut a = Archive::new(file);

for file in a.entries().unwrap() {
let mut file = file.unwrap();
for file in a.entries()? {
let mut file = file?;
let h = file.header().clone();
let path = h.path().unwrap().clone().into_owned();
let path = h.path()?.clone().into_owned();
let is_dir = path.to_str().unwrap().ends_with(path::MAIN_SEPARATOR);
let path = path.strip_prefix("dist").unwrap();
let path = path.strip_prefix("dist")?;
let mut final_path = out_path.clone();
final_path.push(path);

let mut tmp: Vec<u8> = vec![];
file.read_to_end(&mut tmp).unwrap();
file.read_to_end(&mut tmp)?;
if is_dir {
fs::create_dir_all(final_path).unwrap();
fs::create_dir_all(final_path)?;
} else {
let mut buffer = File::create(final_path).unwrap();
buffer.write_all(&tmp).unwrap();
buffer.flush().unwrap();
let mut buffer = File::create(final_path)?;
buffer.write_all(&tmp)?;
buffer.flush()?;
}
}

Ok(true)
}