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use std::num::ParseIntError;
use std::fmt;
use std::process::Command;
use std::io::Write;
use std::process::Stdio;
#[derive(Debug)]
pub enum GitError {
GitLog(String),
Parse(ParseIntError),
UnknownRef,
}
impl fmt::Display for GitError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
GitError::GitLog(s) => write!(f, "{}", s),
GitError::Parse(s) => write!(f, "{}", s),
GitError::UnknownRef => write!(f, "Unknown reference"),
}
}
}
impl From<ParseIntError> for GitError {
fn from(err: ParseIntError) -> GitError {
GitError::Parse(err)
}
}
impl std::error::Error for GitError {}
////// TODO
pub fn get_files_to_unstage() -> String {
let cmd = Command::new("git")
.arg("update-index")
.arg("--refresh")
.output()
.expect("Error with update-index");
match cmd.status.code() {
Some(1) => (),
Some(0) => (),
Some(s) => panic!("Fixme status code: {}",s),
None => panic!("Fixme git update-index"),
}
let lines = String::from_utf8_lossy(&cmd.stdout).to_string();
let mut files = String::default();
for line in lines.lines() {
files = files + " " +line.split(":").next().unwrap();
}
files[1..].to_string()
}
pub fn unstage_object(path: &str) {
let cmd = Command::new("git")
.arg("update-index")
.arg("--remove")
.arg(path)
.output()
.expect("Error with update-index");
if !cmd.status.success() {
panic!("FIXME unstage_object failed");
}
}
pub fn update_ref(object: &str) {
let cmd = Command::new("git")
.arg("update-ref")
.arg("refs/notes/devtools/future-me")
.arg(object)
.output()
.expect("Error with update-index");
if !cmd.status.success() {
panic!("FIXME: update ref failed");
}
}
pub fn stage_object(hash: &str, path: &str) {
// with git update-index --add --cacheinfo 100644 hash dd/fffff
let cmd = Command::new("git")
.arg("update-index")
.arg("--add")
.arg("--cacheinfo")
.arg("100644")
.arg(hash)
.arg(path)
.output()
.expect("Error with update-index");
if !cmd.status.success() {
panic!("FIXME");
}
}
pub fn create_object(object: String) -> Result<String, GitError> {
// create an git object with git hash-object -w --stdin
let mut files = Command::new("git")
.arg("hash-object")
.arg("-w")
.arg("--stdin")
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.expect("Error with git hash-ojbect");
let mut stdin = files.stdin.take().expect("Failed to open stdin");
std::thread::spawn(move || {
stdin.write_all(object.as_bytes()).expect("Failed to write to stdin");
});
let output = files.wait_with_output().expect("Failed to write to stdout");
let lines = String::from_utf8_lossy(&output.stdout).to_string();
Ok(lines.split_whitespace().next().unwrap().to_string())
}
pub fn commit(object: String, parent: Option<String>) -> Result<String, GitError> {
// commit_id=$(echo 'future-me: created a new bug for you' | git commit-tree $tree_id)
let mut files = match parent {
Some(parent) =>
Command::new("git")
.arg("commit-tree")
.arg(object)
.arg("-p")
.arg(parent)
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.expect("Error with git commit-tree"),
None =>
Command::new("git")
.arg("commit-tree")
.arg(object)
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.expect("Error with git commit-tree"),
};
let mut stdin = files.stdin.take().expect("Failed to open stdin");
std::thread::spawn(move || {
stdin.write_all("future-me: created a new bug for you".as_bytes()).expect("Failed to write to stdin");
});
let output = files.wait_with_output().expect("Failed to write to stdout");
let lines = String::from_utf8_lossy(&output.stdout).to_string();
Ok(lines.split_whitespace().next().unwrap().to_string())
}
pub fn get_last_ref() -> Result<String, GitError> {
let cmd = Command::new("git")
.arg("show-ref")
.arg("refs/notes/devtools/future-me")
.output()
.expect("Error with git show-ref");
if !cmd.status.success() {
//return GitError::GitLog(String::from_utf8_lossy(&cmd.stderr).to_string());
GitError::GitLog(String::from_utf8_lossy(&cmd.stderr).to_string());
}
let lines = String::from_utf8_lossy(&cmd.stdout);
match lines.split_whitespace().next() {
Some(line) => Ok(line.to_string()),
None => Err(GitError::UnknownRef),
}
}
pub fn get_current_tree() -> Result<String, GitError>{
let cmd = Command::new("git")
.arg("log")
.arg("-1")
.arg("--format=%H")
.output()
.expect("Error with git log");
if !cmd.status.success() {
GitError::GitLog(String::from_utf8_lossy(&cmd.stderr).to_string());
}
let lines = String::from_utf8_lossy(&cmd.stdout);
Ok(lines.trim().to_string())
}
pub fn write_tree() -> String {
let cmd = Command::new("git")
.arg("write-tree")
.output()
.expect("Error with git write-tree");
if !cmd.status.success() {
panic!("{}", String::from_utf8_lossy(&cmd.stderr));
}
let lines = String::from_utf8_lossy(&cmd.stdout);
lines.trim().to_string()
}
pub fn create_new_tree() {
let cmd = Command::new("git")
.arg("read-tree")
.arg("--empty")
.output()
.expect("Error with git read-tree");
if !cmd.status.success() {
panic!("{}", String::from_utf8_lossy(&cmd.stderr));
}
}
pub fn read_tree(tree: &str) {
let cmd = Command::new("git")
.arg("read-tree")
.arg(tree)
.output()
.expect("Error with git read-tree");
if !cmd.status.success() {
panic!("{}", String::from_utf8_lossy(&cmd.stderr));
}
}
pub fn check_status() {
let logs = Command::new("git")
.arg("status")
.arg("--porcelain")
.output()
.expect("Error with git status");
if !logs.status.success() {
GitError::GitLog(String::from_utf8_lossy(&logs.stderr).to_string());
}
let lines = String::from_utf8_lossy(&logs.stdout);
for line in lines.lines() {
println!("{}", line);
if line.starts_with(['M', 'A']) {
panic!("You first need to clean you git staging status to use future-me");
}
}
}
pub fn hello() {
println!("hello from git");
}
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