Disable LintError in color check

Lint will by default prompt LintError if no class files found. However
class files is not the focus in color lint check, so this cl disable
LintError.

Bug: 32750778
Test: manually upload the cl and see the check result
Change-Id: I2d17bc852bc3f0d0a19938cc92b4ac07e9efcadb

2 files changed, 3 insertions, 2 deletions

diff --git a/README.md b/README.md
index a7f26c6..6ed4305 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,7 @@ However, if you need to bypass the check, please update the `baseline.xml` by ru
 command in package root folder(i.e. package/app/Settings/)
 
 ```
+export ANDROID_LINT_JARS=$(gettop)/prebuilts/checkcolor/checkcolor.jar
 lint --check HardCodedColor --xml color-check-baseline.xml .
 ```
 
diff --git a/checkcolor.py b/checkcolor.py
index 048feb3..9e62d3d 100755
--- a/checkcolor.py
+++ b/checkcolor.py
@@ -64,8 +64,8 @@ def RunCheckOnProject(root):
 
   try:
     baseline = os.path.join(root, LINT_BASELINE_FILENAME)
-    check = subprocess.Popen(['lint', '--check', 'HardCodedColor', '--baseline',
-                              baseline, '--exitcode', TMP_FOLDER],
+    check = subprocess.Popen(['lint', '--check', 'HardCodedColor', '--disable', 'LintError',
+                              '--baseline', baseline, '--exitcode', TMP_FOLDER],
                              stdout=subprocess.PIPE, env=checkcolor_env)
     stdout, _ = check.communicate()
     exitcode = check.returncode