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use std::fs;
use std::path::{Path, PathBuf};
use serde::{Deserialize, Serialize};
const PENDING_RELEASE_NOTES_PATH: &str = "release-notes.json";
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ReleaseNotes {
pub version: String,
pub body: String,
pub preview: bool,
}
#[derive(Debug, Serialize, Deserialize)]
struct StoredReleaseNotes {
version: String,
body: String,
}
pub fn pending_path() -> PathBuf {
let mut path = crate::config::config_path();
path.set_file_name(PENDING_RELEASE_NOTES_PATH);
path
}
pub fn save_pending(version: &str, body: &str) -> std::io::Result<()> {
save_pending_to_path(&pending_path(), version, body)
}
fn save_pending_to_path(path: &Path, version: &str, body: &str) -> std::io::Result<()> {
let body = normalize_body(body);
if body.is_empty() {
return clear_pending_at(path);
}
if let Some(parent) = path.parent() {
fs::create_dir_all(parent)?;
}
let stored = StoredReleaseNotes {
version: version.to_string(),
body,
};
let json = serde_json::to_string_pretty(&stored).map_err(std::io::Error::other)?;
let tmp_path = path.with_extension(format!("json.tmp.{}", std::process::id()));
fs::write(&tmp_path, json)?;
if let Err(err) = fs::rename(&tmp_path, path) {
let _ = fs::remove_file(&tmp_path);
return Err(err);
}
Ok(())
}
pub fn load_pending_for_current_version() -> Option<ReleaseNotes> {
load_pending_from_path(&pending_path(), env!("CARGO_PKG_VERSION"))
}
fn load_pending_from_path(path: &Path, current_version: &str) -> Option<ReleaseNotes> {
let content = fs::read_to_string(path).ok()?;
let stored: StoredReleaseNotes = serde_json::from_str(&content).ok()?;
if stored.version != current_version {
return None;
}
let body = normalize_body(&stored.body);
if body.is_empty() {
return None;
}
Some(ReleaseNotes {
version: stored.version,
body,
preview: false,
})
}
pub fn clear_pending() -> std::io::Result<()> {
clear_pending_at(&pending_path())
}
fn clear_pending_at(path: &Path) -> std::io::Result<()> {
if path.exists() {
fs::remove_file(path)
} else {
Ok(())
}
}
pub fn load_preview_from_local_changelog(version: &str) -> Option<ReleaseNotes> {
let path = Path::new("CHANGELOG.md");
let content = fs::read_to_string(path).ok()?;
let body = extract_version_section(&content, version)?;
Some(ReleaseNotes {
version: version.to_string(),
body: normalize_body(&body),
preview: true,
})
}
fn extract_version_section(content: &str, version: &str) -> Option<String> {
let header = format!("## [{version}]");
let mut collecting = false;
let mut lines = Vec::new();
for line in content.lines() {
if !collecting {
if line.starts_with(&header) {
collecting = true;
}
continue;
}
if line.starts_with("## [") {
break;
}
lines.push(line);
}
let body = lines.join("\n").trim().to_string();
(!body.is_empty()).then_some(body)
}
pub fn normalize_body(body: &str) -> String {
body.lines()
.map(str::trim_end)
.collect::<Vec<_>>()
.join("\n")
.trim()
.to_string()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn extracts_version_section() {
let changelog = "# Changelog\n\n## [0.2.3] - 2026-03-31\n\n### Changed\n- One\n\n## [0.2.2] - 2026-03-30\n\n### Fixed\n- Two\n";
assert_eq!(
extract_version_section(changelog, "0.2.3").as_deref(),
Some("### Changed\n- One")
);
}
#[test]
fn preserves_headings() {
assert_eq!(
normalize_body("### Changed\n- One\n\n### Fixed\n- Two"),
"### Changed\n- One\n\n### Fixed\n- Two"
);
}
}
|
