chore(xtask): Make reducing version of swc_core easier (#9406)

**Description:**

This PR
 - makes auto-publish action store the version of `swc_core` in the commit message.
 - fixes `swc_core` version reducing logic.

.changeset/sour-starfishes-speak.md

@@ -0,0 +1,5 @@
+---
+swc_core: patch
+---
+
+chore(xtask): Make reducing version of `swc_core` easier

Cargo.lock

@@ -3811,6 +3811,7 @@ name = "swc-releaser"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "cargo_metadata",
  "changesets",
  "clap 4.5.9",
 ]

scripts/cargo/patch-section.sh

@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-
-set -eu
-
-SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
-
-function toLine {
-    # >&2 echo "toLine: $@"
-    arr=(${1//,/ })
-    # >&2 echo "arr: ${arr[0]} ${arr[1]}"
-    dir="$(dirname ${arr[1]})"
-    echo "${arr[0]} = { path = '$dir' }"
-}
-
-export -f toLine
-
-$SCRIPT_DIR/list-crates.sh | jq '[.name, .manifest_path] | @csv' -r | xargs -I {} bash -c 'toLine "$@"' _ {}

tools/swc-releaser/Cargo.toml

@@ -7,6 +7,7 @@ repository        = { workspace = true }
 version           = "0.1.0"
 
 [dependencies]
-anyhow     = { workspace = true }
-changesets = { workspace = true }
-clap       = { version = "4.5.9", features = ["derive"] }
+anyhow         = { workspace = true }
+cargo_metadata = { workspace = true }
+changesets     = { workspace = true }
+clap           = { version = "4.5.9", features = ["derive"] }

tools/swc-releaser/src/main.rs

@@ -66,9 +66,27 @@ fn run_bump(workspace_dir: &Path, dry_run: bool) -> Result<()> {
     Ok(())
 }
 
+fn get_swc_core_version() -> Result<String> {
+    let md = cargo_metadata::MetadataCommand::new()
+        .no_deps()
+        .exec()
+        .expect("failed to run cargo metadata");
+
+    md.packages
+        .iter()
+        .find(|p| p.name == "swc_core")
+        .map(|p| p.version.to_string())
+        .context("failed to find swc_core")
+}
+
 fn commit(dry_run: bool) -> Result<()> {
+    let core_ver = get_swc_core_version()?;
+
     let mut cmd = Command::new("git");
-    cmd.arg("commit").arg("-am").arg("chore: Publish crates");
+    cmd.arg("commit").arg("-am").arg(format!(
+        "chore: Publish crates with `swc_core` `v{}`",
+        core_ver
+    ));
 
     eprintln!("Running {:?}", cmd);
 

xtask/src/git/reduce/core_ver.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use clap::Args;
 
-use crate::util::get_commit_for_swc_core_version;
+use crate::util::get_commit_for_core_version;
 
 /// Reduce the difference of the versions of `swc_core`s to the list of commits
 /// and pull requests.
@@ -14,8 +14,8 @@ pub(super) struct CoreVerCmd {
 
 impl CoreVerCmd {
     pub fn run(self) -> Result<()> {
-        let from_commit = get_commit_for_swc_core_version(&self.from)?;
-        let to_commit = get_commit_for_swc_core_version(&self.to)?;
+        let from_commit = get_commit_for_core_version(&self.from, false)?;
+        let to_commit = get_commit_for_core_version(&self.to, true)?;
 
         eprintln!(
             "GitHub diff: https://github.com/swc-project/swc/compare/{from_commit}...{to_commit}"

xtask/src/util/mod.rs

@@ -32,7 +32,7 @@ pub fn run_cmd(cmd: &mut Command) -> Result<()> {
     Ok(())
 }
 
-pub fn get_commit_for_swc_core_version(version: &str) -> Result<String> {
+pub fn get_commit_for_core_version(version: &str, last: bool) -> Result<String> {
     wrap(|| {
         eprintln!("Getting commit for swc_core@v{}", version);
 
@@ -71,26 +71,33 @@ pub fn get_commit_for_swc_core_version(version: &str) -> Result<String> {
 
         let line_count = output.lines().count();
 
-        for line in output.lines() {
-            let commit = line.split(':').next().unwrap().to_string();
+        if line_count == 0 {
+            bail!("swc_core@v{} is not found in the repository", version);
+        }
 
-            if line_count == 1 || get_version_of_swc_core_of_commit(&commit)? == version {
-                eprintln!("\tThe commit for swc_core@v{} is {}", version, commit);
+        let iter: Box<dyn Iterator<Item = &str>> = if last {
+            Box::new(output.lines().rev())
+        } else {
+            Box::new(output.lines())
+        };
+
+        for line in iter {
+            let commit = line.split(':').next().unwrap().to_string();
+            let commit_version = get_version_of_swc_core_of_commit(&commit)?;
+            if Some(version) == commit_version.as_deref() {
+                eprintln!("\tFound commit for swc_core@v{}: https://github.com/swc-project/swc/commits/{}", version, commit);
 
                 return Ok(commit);
             }
         }
 
-        bail!(
-            "check if the version is the one of swc_core, where the output of git grep is\n{}",
-            output
-        )
+        bail!("swc_core@v{} is not found in the repository", version);
     })
     .with_context(|| format!("failed to get the commit for swc_core@v{}", version))
 }
 
 /// Read the version of swc_core from `Cargo.lock`
-pub fn get_version_of_swc_core_of_commit(commit: &str) -> Result<String> {
+pub fn get_version_of_swc_core_of_commit(commit: &str) -> Result<Option<String>> {
     wrap(|| {
         let output = Command::new("git")
             .current_dir(repository_root()?)
@@ -108,11 +115,11 @@ pub fn get_version_of_swc_core_of_commit(commit: &str) -> Result<String> {
 
         for pkg in content.package {
             if pkg.name == "swc_core" {
-                return Ok(pkg.version);
+                return Ok(Some(pkg.version));
             }
         }
 
-        bail!("swc_core is not found in Cargo.lock")
+        Ok(None)
     })
     .with_context(|| format!("failed to get the version of swc_core of {}", commit))
 }