1 files changed, 106 insertions, 0 deletions
diff --git a/llvm_tools/patch_sync/src/main.rs b/llvm_tools/patch_sync/src/main.rs
new file mode 100644
index 00000000..8eedaaa8
--- /dev/null
+++ b/llvm_tools/patch_sync/src/main.rs
@@ -0,0 +1,106 @@
+mod version_control;
+
+use anyhow::{Context, Result};
+use std::path::PathBuf;
+use structopt::StructOpt;
+
+fn main() -> Result<()> {
+    match Opt::from_args() {
+        Opt::Show { .. } => todo!("Opt show is not implemented yet"),
+        Opt::Transpose {
+            cros_checkout_path,
+            old_cros_ref,
+            android_checkout_path,
+            old_android_ref,
+            verbose,
+            dry_run,
+            no_commit,
+        } => transpose_subcmd(TransposeOpt {
+            cros_checkout_path,
+            old_cros_ref,
+            android_checkout_path,
+            old_android_ref,
+            verbose,
+            dry_run,
+            no_commit,
+        }),
+    }
+}
+
+#[allow(dead_code)]
+struct TransposeOpt {
+    cros_checkout_path: PathBuf,
+    old_cros_ref: String,
+    android_checkout_path: PathBuf,
+    old_android_ref: String,
+    verbose: bool,
+    dry_run: bool,
+    no_commit: bool,
+}
+
+fn transpose_subcmd(args: TransposeOpt) -> Result<()> {
+    let ctx = version_control::RepoSetupContext {
+        cros_checkout: args.cros_checkout_path,
+        android_checkout: args.android_checkout_path,
+        sync_before: false,
+    };
+    ctx.setup()?;
+    let _cros_patches_path = ctx.cros_patches_path();
+    let _android_patches_path = ctx.android_patches_path();
+
+    if !args.no_commit {
+        return Ok(());
+    }
+    // Commit and upload for review.
+    ctx.cros_repo_upload()
+        .context("uploading chromiumos changes")?;
+    ctx.android_repo_upload()
+        .context("uploading android changes")?;
+    Ok(())
+}
+
+#[derive(Debug, structopt::StructOpt)]
+#[structopt(name = "patch_sync", about = "A pipeline for syncing the patch code")]
+enum Opt {
+    /// Show a combined view of the PATCHES.json file, without making any changes.
+    #[allow(dead_code)]
+    Show {
+        #[structopt(parse(from_os_str))]
+        cros_checkout_path: PathBuf,
+        #[structopt(parse(from_os_str))]
+        android_checkout_path: PathBuf,
+    },
+    /// Transpose patches from two PATCHES.json files
+    /// to each other.
+    Transpose {
+        #[structopt(long = "cros-checkout", parse(from_os_str))]
+        /// Path to the ChromiumOS source repo checkout.
+        cros_checkout_path: PathBuf,
+
+        #[structopt(long = "overlay-base-ref")]
+        /// Git ref (e.g. hash) for the ChromiumOS overlay to use as the base.
+        old_cros_ref: String,
+
+        #[structopt(long = "aosp-checkout", parse(from_os_str))]
+        /// Path to the Android Open Source Project source repo checkout.
+        android_checkout_path: PathBuf,
+
+        #[structopt(long = "aosp-base-ref")]
+        /// Git ref (e.g. hash) for the llvm_android repo to use as the base.
+        old_android_ref: String,
+
+        #[structopt(short, long)]
+        /// Print information to stdout
+        verbose: bool,
+
+        #[structopt(long)]
+        /// Do not change any files. Useful in combination with `--verbose`
+        /// Implies `--no-commit` and `--no-upload`.
+        dry_run: bool,
+
+        #[structopt(long)]
+        /// Do not commit any changes made.
+        /// Implies `--no-upload`.
+        no_commit: bool,
+    },
+}