From 79c81586a14557462b18f4b83022a63f474150a7 Mon Sep 17 00:00:00 2001
From: Mira Leung <miraleung@google.com>
Date: Mon, 18 May 2020 21:19:41 +0000
Subject: [PATCH 1/3] [ggj][ci] Run build/linter checks only on commits with
 applicable files

---
 .circleci/config.yml | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index d86790845a..04e9e543ff 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,7 +11,14 @@ jobs:
       - run:
           name: Builder
           command: |
-            bazel build //...
+            LATEST_COMMIT=`git rev-parse HEAD`
+            NUM_NOCHECKS=`git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.md | wc -l`
+            NUM_TOTAL=`git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.md | wc -l`
+            if [ $NUM_NOCHECKS == $NUM_TOTAL ]
+            then
+              # Run build checks only if there are non-Markdown files in this change.
+              bazel build //...
+            fi
   google-java-format:
     docker:
       - image: l.gcr.io/google/bazel
@@ -21,7 +28,13 @@ jobs:
       - run:
           name: Java Linter
           command: |
-            bazel build //:google_java_format_verification
+            LATEST_COMMIT=`git rev-parse HEAD`
+            NUM_JAVA=`git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.java | wc -l`
+            # Run Java linter checks only if there are Java files in this change.
+            if [ $NUM_JAVA != 0 ]
+            then
+              bazel build //:google_java_format_verification
+            fi
 
 # ======================= WORKFLOWS =======================
 

From 62914f98a2729e2257df02e81cc78c2b332ea73c Mon Sep 17 00:00:00 2001
From: Mira Leung <miraleung@google.com>
Date: Mon, 18 May 2020 21:23:31 +0000
Subject: [PATCH 2/3] [ggj][ci] Fix bash commands in circleci file grep

---
 .circleci/config.yml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 04e9e543ff..22f3b4c293 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,9 +11,9 @@ jobs:
       - run:
           name: Builder
           command: |
-            LATEST_COMMIT=`git rev-parse HEAD`
-            NUM_NOCHECKS=`git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.md | wc -l`
-            NUM_TOTAL=`git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.md | wc -l`
+            LATEST_COMMIT=$(git rev-parse HEAD)
+            NUM_NOCHECKS=$(git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.md | wc -l)
+            NUM_TOTAL=$(git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | wc -l)
             if [ $NUM_NOCHECKS == $NUM_TOTAL ]
             then
               # Run build checks only if there are non-Markdown files in this change.
@@ -28,8 +28,8 @@ jobs:
       - run:
           name: Java Linter
           command: |
-            LATEST_COMMIT=`git rev-parse HEAD`
-            NUM_JAVA=`git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.java | wc -l`
+            LATEST_COMMIT=$(git rev-parse HEAD)
+            NUM_JAVA=$(git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.java | wc -l)
             # Run Java linter checks only if there are Java files in this change.
             if [ $NUM_JAVA != 0 ]
             then

From 3b2c1ea76f42fe925960a61ba38a0a57ecea40e3 Mon Sep 17 00:00:00 2001
From: Mira Leung <miraleung@google.com>
Date: Mon, 18 May 2020 22:16:45 +0000
Subject: [PATCH 3/3] [ggj][ci] Debug java-format file exclusion

---
 .circleci/config.yml | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 22f3b4c293..8b47363c7e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -30,11 +30,12 @@ jobs:
           command: |
             LATEST_COMMIT=$(git rev-parse HEAD)
             NUM_JAVA=$(git diff-tree --no-commit-id --name-only -r $LATEST_COMMIT | grep .*.java | wc -l)
+            echo "$LATEST_COMMIT -> $NUM_JAVA"
             # Run Java linter checks only if there are Java files in this change.
-            if [ $NUM_JAVA != 0 ]
-            then
-              bazel build //:google_java_format_verification
-            fi
+            #if [ $NUM_JAVA != 0 ]
+            #then
+            #bazel build //:google_java_format_verification
+            #fi
 
 # ======================= WORKFLOWS =======================