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pub mod config;
pub mod errors;
pub mod git;
pub mod graph;
pub mod lock;
pub mod read2;
pub mod shell;
pub use crate::util::read2::read2;
use crate::util::errors::{Error, Res};
use failure::{bail, format_err, ResultExt};
use itertools::Itertools;
use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
use std::{
fs,
path::{Component, Path, PathBuf},
process::Output,
str::FromStr,
};
use walkdir::{DirEntry, WalkDir};
pub fn hexify_hash(hash: &[u8]) -> String {
let mut s = String::new();
for byte in hash {
let p = format!("{:02x}", byte);
s.push_str(&p);
}
s
}
#[derive(Clone, Debug, PartialEq, Eq, Hash)]
pub struct SubPath(pub PathBuf);
impl SubPath {
pub fn is_subpath(p: &Path) -> bool {
p.is_relative() && p.components().all(|x| x != Component::ParentDir)
}
pub fn from_path(p: &Path) -> Res<Self> {
if SubPath::is_subpath(&p) {
Ok(SubPath(p.to_path_buf()))
} else {
bail!("p {} isn't a strict subdirectory", p.display())
}
}
}
impl FromStr for SubPath {
type Err = Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let path = PathBuf::from(s);
SubPath::from_path(&path)
}
}
impl Serialize for SubPath {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str(self.0.to_string_lossy().as_ref())
}
}
impl<'de> Deserialize<'de> for SubPath {
fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
let s = String::deserialize(deserializer)?;
FromStr::from_str(&s).map_err(de::Error::custom)
}
}
pub fn copy_dir_iter(walker: impl Iterator<Item = DirEntry>, from: &Path, to: &Path) -> Res<()> {
for entry in walker {
let to_p = to.join(entry.path().strip_prefix(from).unwrap());
fs::create_dir_all(to_p.parent().unwrap())?;
fs::File::create(&to_p).context(format_err!("couldn't create file {}", to_p.display()))?;
let _ = fs::copy(entry.path(), &to_p).with_context(|e| {
format_err!(
"couldn't copy {} to {}:\n{}",
entry.path().display(),
to_p.display(),
e
)
})?;
}
Ok(())
}
pub fn copy_dir(from: &Path, to: &Path, gitless: bool) -> Res<()> {
let walker = WalkDir::new(from)
.follow_links(true)
.into_iter()
.filter_entry(|x| x.path() != to && (!gitless || x.file_name() != ".git"))
.filter_map(|x| {
x.ok()
.and_then(|x| if valid_file(&x) { Some(x) } else { None })
});
copy_dir_iter(walker, from, to)
}
pub fn clear_dir(dir: &Path) -> Res<()> {
if dir.exists() {
fs::remove_dir_all(dir)?;
}
fs::create_dir_all(dir)?;
Ok(())
}
pub fn valid_file(entry: &DirEntry) -> bool {
entry.file_type().is_file()
}
pub fn generate_ipkg(name: &str, src_dir: &str, opts: &str, mods: &str) -> String {
format!(
r#"package {}
sourcedir = {}
opts = "{}"
modules = {}
"#,
name, src_dir, opts, mods
)
}
pub fn fmt_multiple(c: &shell::OutputGroup) -> String {
c.0.iter().map(|x| fmt_output(&x)).join("\n")
}
pub fn fmt_output(c: &Output) -> String {
let mut res = String::new();
if !c.stderr.is_empty() {
if !c.stdout.is_empty() {
res.push_str("--- stdout\n");
}
res.push_str(format!("{}\n", String::from_utf8_lossy(&c.stderr)).as_ref());
res.push_str(format!("--- stderr\n{}\n", String::from_utf8_lossy(&c.stderr)).as_ref());
}
if !c.stdout.is_empty() {
if !c.stderr.is_empty() {
res.push_str("--- stdout\n");
}
res.push_str(format!("{}\n", String::from_utf8_lossy(&c.stdout)).as_ref());
}
res.pop();
res
}