Remove flag_check.py, we now have flag directive check in gerrit presubmit.

See b/340896878 & go/flag-format-checker-design-doc & go/flag-directive-checker

Bug: 391534772
Test: Manual
Flag: EXEMPT remove flag check hook
Change-Id: Iff95b80171569f7e0842cbcf091f0a18a9ec88f7

2 files changed, 0 insertions, 141 deletions

diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 5e0428bab467..05d6e886b01a 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -29,8 +29,5 @@ hidden_api_txt_exclude_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/exclu
 
 ktlint_hook = ${REPO_ROOT}/prebuilts/ktlint/ktlint.py --no-verify-format -f ${PREUPLOAD_FILES}
 
-# This flag check hook runs only for "packages/SystemUI" subdirectory. If you want to include this check for other subdirectories, please modify flag_check.py.
-flag_hook = ${REPO_ROOT}/frameworks/base/packages/SystemUI/flag_check.py --msg=${PREUPLOAD_COMMIT_MESSAGE} --files=${PREUPLOAD_FILES} --project=${REPO_PROJECT}
-
 [Tool Paths]
 ktfmt = ${REPO_ROOT}/external/ktfmt/ktfmt.sh
diff --git a/packages/SystemUI/flag_check.py b/packages/SystemUI/flag_check.py
deleted file mode 100755
index d78ef5a5f1bf..000000000000
--- a/packages/SystemUI/flag_check.py
+++ /dev/null
@@ -1,138 +0,0 @@
-#! /usr/bin/env python3
-
-import sys
-import re
-import argparse
-
-# partially copied from tools/repohooks/rh/hooks.py
-
-TEST_MSG = """Commit message is missing a "Flag:" line.  It must match one of the
-following case-sensitive regex:
-
-    %s
-
-The Flag: stanza is regex matched and should describe whether your change is behind a flag or flags.
-As a CL author, you'll have a consistent place to describe the risk of the proposed change by explicitly calling out the name of the flag.
-For legacy flags use EXEMPT with your flag name.
-
-Some examples below:
-
-Flag: NONE Repohook Update
-Flag: TEST_ONLY
-Flag: EXEMPT resource only update
-Flag: EXEMPT bugfix
-Flag: EXEMPT refactor
-Flag: com.android.launcher3.enable_twoline_allapps
-Flag: com.google.android.apps.nexuslauncher.zero_state_web_data_loader
-
-Check the git history for more examples. It's a regex matched field. See go/android-flag-directive for more details on various formats.
-"""
-
-def main():
-    """Check the commit message for a 'Flag:' line."""
-    parser = argparse.ArgumentParser(
-        description='Check the commit message for a Flag: line.')
-    parser.add_argument('--msg',
-                        metavar='msg',
-                        type=str,
-                        nargs='?',
-                        default='HEAD',
-                        help='commit message to process.')
-    parser.add_argument(
-        '--files',
-        metavar='files',
-        nargs='?',
-        default='',
-        help=
-        'PREUPLOAD_FILES in repo upload to determine whether the check should run for the files.')
-    parser.add_argument(
-        '--project',
-        metavar='project',
-        type=str,
-        nargs='?',
-        default='',
-        help=
-        'REPO_PROJECT in repo upload to determine whether the check should run for this project.')
-
-    # Parse the arguments
-    args = parser.parse_args()
-    desc = args.msg
-    files = args.files
-    project = args.project
-
-    if not should_run_path(project, files):
-        return
-
-    field = 'Flag'
-    none = 'NONE'
-    testOnly = 'TEST_ONLY'
-    docsOnly = 'DOCS_ONLY'
-    exempt = 'EXEMPT'
-    justification = '<justification>'
-
-    # Aconfig Flag name format = <packageName>.<flagName>
-    # package name - Contains only lowercase alphabets + digits + '.' - Ex: com.android.launcher3
-    # For now alphabets, digits, "_", "." characters are allowed in flag name.
-    # Checks if there is "one dot" between packageName and flagName and not adding stricter format check
-    #common_typos_disable
-    flagName = '([a-zA-Z0-9.]+)([.]+)([a-zA-Z0-9_.]+)'
-
-    # None and Exempt needs justification
-    exemptRegex = fr'{exempt}\s*[a-zA-Z]+'
-    noneRegex = fr'{none}\s*[a-zA-Z]+'
-    #common_typos_enable
-
-    readableRegexMsg = '\n\tFlag: '+none+' '+justification+'\n\tFlag: <packageName>.<flagName>\n\tFlag: ' +exempt+' '+justification+'\n\tFlag: '+testOnly+'\n\tFlag: '+docsOnly
-
-    flagRegex = fr'^{field}: .*$'
-    check_flag = re.compile(flagRegex) #Flag:
-
-    # Ignore case for flag name format.
-    flagNameRegex = fr'(?i)^{field}:\s*({noneRegex}|{flagName}|{testOnly}|{docsOnly}|{exemptRegex})\s*'
-    check_flagName = re.compile(flagNameRegex) #Flag: <flag name format>
-
-    flagError = False
-    foundFlag = []
-    # Check for multiple "Flag:" lines and all lines should match this format
-    for line in desc.splitlines():
-        if check_flag.match(line):
-            if not check_flagName.match(line):
-                flagError = True
-                break
-            foundFlag.append(line)
-
-    # Throw error if
-    # 1. No "Flag:" line is found
-    # 2. "Flag:" doesn't follow right format.
-    if (not foundFlag) or (flagError):
-        error = TEST_MSG % (readableRegexMsg)
-        print(error)
-        sys.exit(1)
-
-    sys.exit(0)
-
-
-def should_run_path(project, files):
-    """Returns a boolean if this check should run with these paths.
-    If you want to check for a particular subdirectory under the path,
-    add a check here, call should_run_files and check for a specific sub dir path in should_run_files.
-    """
-    if not project:
-        return False
-    if project == 'platform/frameworks/base':
-        return should_run_files(files)
-    # Default case, run for all other projects which calls this script.
-    return True
-
-
-def should_run_files(files):
-    """Returns a boolean if this check should run with these files."""
-    if not files:
-        return False
-    if 'packages/SystemUI' in files:
-        return True
-    return False
-
-
-if __name__ == '__main__':
-    main()