1 files changed, 67 insertions, 0 deletions

diff --git a/xtask/src/release.rs b/xtask/src/release.rs
new file mode 100644
index 000000000..36c912184
--- /dev/null
+++ b/xtask/src/release.rs
@@ -0,0 +1,67 @@
+use crate::{
+    codegen, is_release_tag,
+    not_bash::{date_iso, fs2, run},
+    project_root, Mode, Result,
+};
+
+pub struct ReleaseCmd {
+    pub dry_run: bool,
+}
+
+impl ReleaseCmd {
+    pub fn run(self) -> Result<()> {
+        if !self.dry_run {
+            run!("git switch release")?;
+            run!("git fetch upstream --tags --force")?;
+            run!("git reset --hard tags/nightly")?;
+            run!("git push")?;
+        }
+        codegen::generate_assists_docs(Mode::Overwrite)?;
+        codegen::generate_feature_docs(Mode::Overwrite)?;
+
+        let website_root = project_root().join("../rust-analyzer.github.io");
+        let changelog_dir = website_root.join("./thisweek/_posts");
+
+        let today = date_iso()?;
+        let commit = run!("git rev-parse HEAD")?;
+        let changelog_n = fs2::read_dir(changelog_dir.as_path())?.count();
+
+        let contents = format!(
+            "\
+    = Changelog #{}
+    :sectanchors:
+    :page-layout: post
+
+    Commit: commit:{}[] +
+    Release: release:{}[]
+
+    == New Features
+
+    * pr:[] .
+
+    == Fixes
+
+    == Internal Improvements
+    ",
+            changelog_n, commit, today
+        );
+
+        let path = changelog_dir.join(format!("{}-changelog-{}.adoc", today, changelog_n));
+        fs2::write(&path, &contents)?;
+
+        for &adoc in ["manual.adoc", "generated_features.adoc", "generated_assists.adoc"].iter() {
+            let src = project_root().join("./docs/user/").join(adoc);
+            let dst = website_root.join(adoc);
+            fs2::copy(src, dst)?;
+        }
+
+        let tags = run!("git tag --list"; echo = false)?;
+        let prev_tag = tags.lines().filter(|line| is_release_tag(line)).last().unwrap();
+
+        let git_log = run!("git log {}..HEAD --merges --reverse", prev_tag; echo = false)?;
+        let git_log_dst = website_root.join("git.log");
+        fs2::write(git_log_dst, &git_log)?;
+
+        Ok(())
+    }
+}