From ea00371d852d037de76fe014805c0fbbd11afe44 Mon Sep 17 00:00:00 2001
From: Ashay Rane <ashay@users.noreply.github.com>
Date: Fri, 24 Feb 2023 14:44:35 -0600
Subject: [PATCH] CI: clear workspace directory before checkout (#1900)

We have recently started seeing errors like:

```
  Synchronizing submodule url for 'externals/llvm-project'
  Synchronizing submodule url for 'externals/mlir-hlo'
  /usr/bin/git -c protocol.version=2 submodule update --init --force --depth=1
  Error: fatal: Unable to create '/home/anush/actions-runner/_work/torch-mlir/torch-mlir/.git/modules/externals/llvm-project/index.lock': File exists.
```

As a workaround, this patch removes the workspace directory before the
checkout step.
---
 .github/workflows/RollPyTorch.yml            | 10 ++++++----
 .github/workflows/bazelBuildAndTest.yml      |  6 ++++++
 .github/workflows/buildAndTest.yml           |  6 ++++--
 .github/workflows/buildRelease.yml           | 10 ++++++----
 .github/workflows/gh-pages-releases.yml      |  7 ++++++-
 .github/workflows/oneshotSnapshotPackage.yml |  8 +++++++-
 .github/workflows/releaseSnapshotPackage.yml |  9 ++++++++-
 7 files changed, 43 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/RollPyTorch.yml b/.github/workflows/RollPyTorch.yml
index 25cb26395be..2976df3442b 100644
--- a/.github/workflows/RollPyTorch.yml
+++ b/.github/workflows/RollPyTorch.yml
@@ -14,11 +14,13 @@ jobs:
     if: github.repository == 'llvm/torch-mlir'
 
     steps:
-    
-    - name: chown $GITHUB_WORKSPACE
+
+    - name: Prepare workspace
       run: |
-        sudo chown -R $USER:$USER $GITHUB_WORKSPACE
-          
+        # Clear the workspace directory so that we don't run into errors about
+        # existing lock files.
+        rm -rf $GITHUB_WORKSPACE/*
+
     - name: Get torch-mlir
       uses: actions/checkout@v3
       with:
diff --git a/.github/workflows/bazelBuildAndTest.yml b/.github/workflows/bazelBuildAndTest.yml
index dd053ae7f0a..17a14189933 100644
--- a/.github/workflows/bazelBuildAndTest.yml
+++ b/.github/workflows/bazelBuildAndTest.yml
@@ -20,6 +20,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - name: Prepare workspace
+      run: |
+        # Clear the workspace directory so that we don't run into errors about
+        # existing lock files.
+        rm -rf $GITHUB_WORKSPACE/*
+
     - name: Checkout torch-mlir
       uses: actions/checkout@v3
       with:
diff --git a/.github/workflows/buildAndTest.yml b/.github/workflows/buildAndTest.yml
index aaaa84aab13..8590649541d 100644
--- a/.github/workflows/buildAndTest.yml
+++ b/.github/workflows/buildAndTest.yml
@@ -52,10 +52,12 @@ jobs:
 
     steps:
     
-    - name: chown $GITHUB_WORKSPACE
+    - name: Prepare workspace
       if: ${{ matrix.os-arch == 'ubuntu-x86_64' }}
       run: |
-        sudo chown -R $USER:$USER $GITHUB_WORKSPACE
+        # Clear the workspace directory so that we don't run into errors about
+        # existing lock files.
+        rm -rf $GITHUB_WORKSPACE/*
     
     - name: Checkout torch-mlir
       uses: actions/checkout@v3
diff --git a/.github/workflows/buildRelease.yml b/.github/workflows/buildRelease.yml
index 6ea420dfedf..051811c0673 100644
--- a/.github/workflows/buildRelease.yml
+++ b/.github/workflows/buildRelease.yml
@@ -15,11 +15,13 @@ jobs:
     name: Manylinux Build
     runs-on: a100
     steps:
-    
-    - name: chown $GITHUB_WORKSPACE
+
+    - name: Prepare workspace
       run: |
-        sudo chown -R $USER:$USER $GITHUB_WORKSPACE
-        
+        # Clear the workspace directory so that we don't run into errors about
+        # existing lock files.
+        rm -rf $GITHUB_WORKSPACE/*
+
     - name: Get torch-mlir
       uses: actions/checkout@v3
       with:
diff --git a/.github/workflows/gh-pages-releases.yml b/.github/workflows/gh-pages-releases.yml
index ecac146b9b6..1849f8d4521 100644
--- a/.github/workflows/gh-pages-releases.yml
+++ b/.github/workflows/gh-pages-releases.yml
@@ -13,8 +13,13 @@ jobs:
     if: github.repository == 'llvm/torch-mlir'
 
     steps:
+      - name: Prepare workspace
+        run: |
+          # Clear the workspace directory so that we don't run into errors about
+          # existing lock files.
+          rm -rf $GITHUB_WORKSPACE/*
       - name: Checking out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           token: ${{ secrets.WORKFLOW_INVOCATION_TOKEN }}
       - name: Run scrape releases script
diff --git a/.github/workflows/oneshotSnapshotPackage.yml b/.github/workflows/oneshotSnapshotPackage.yml
index c21ed8f9e36..07d0863a741 100644
--- a/.github/workflows/oneshotSnapshotPackage.yml
+++ b/.github/workflows/oneshotSnapshotPackage.yml
@@ -10,8 +10,14 @@ jobs:
     # Don't run this in everyone's forks.
     if: github.repository == 'llvm/torch-mlir'
     steps:
+      - name: Prepare workspace
+        run: |
+          # Clear the workspace directory so that we don't run into errors about
+          # existing lock files.
+          rm -rf $GITHUB_WORKSPACE/*
+
       - name: Checking out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           token: ${{ secrets.WORKFLOW_INVOCATION_TOKEN }}
 
diff --git a/.github/workflows/releaseSnapshotPackage.yml b/.github/workflows/releaseSnapshotPackage.yml
index 1037abca0b2..a9878633865 100644
--- a/.github/workflows/releaseSnapshotPackage.yml
+++ b/.github/workflows/releaseSnapshotPackage.yml
@@ -13,8 +13,15 @@ jobs:
     # Don't run this in everyone's forks.
     if: github.repository == 'llvm/torch-mlir'
     steps:
+
+      - name: Prepare workspace
+        run: |
+          # Clear the workspace directory so that we don't run into errors about
+          # existing lock files.
+          rm -rf $GITHUB_WORKSPACE/*
+
       - name: Checking out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           token: ${{ secrets.WORKFLOW_INVOCATION_TOKEN }}