Prevent hiddenapi entries being added for libcore related projects

The libcore related projects (see below) have been (mostly) switched
over to use UnsupportedAppUsage annotations, This change will prevent
entries for those projects being added to a config/hiddenapi-* file.

* libcore
* external/bouncycastle
* external/conscrypt
* external/icu
* external/okhttp
* external/libphonenumber - still has a couple of entries in
      config/hiddenapi-light-greylist.txt due to limitations in
      UnsupportedAppUsage/class2greylist.

Tested by attempting to upload the file with entries for libcore
projects and without those entries and checking that the behavior
is expected.

Test: see above
Bug: 117818301
Change-Id: I67a30b307e12e842b28cfb2160fab0029868fa06

PREUPLOAD.cfg

@@ -13,7 +13,9 @@ api_lint_hook = ${REPO_ROOT}/frameworks/base/tools/apilint/apilint_sha.sh ${PREU
 
 strings_lint_hook = ${REPO_ROOT}/frameworks/base/tools/stringslint/stringslint_sha.sh ${PREUPLOAD_COMMIT}
 
-hidden_api_txt_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/checksorted_sha.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
+hidden_api_txt_checksorted_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/checksorted_sha.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
+
+hidden_api_txt_exclude_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/exclude.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
 
 owners_hook = ${REPO_ROOT}/frameworks/base/tools/aosp/aosp_sha.sh ${PREUPLOAD_COMMIT} "OWNERS$"
 

tools/hiddenapi/exclude.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+set -e
+# Make sure that entries are not added for packages that are already fully handled using
+# annotations.
+LOCAL_DIR="$( dirname ${BASH_SOURCE} )"
+# Each team should add a <team>_PACKAGES and <team>_EMAIL with the list of packages and
+# the team email to use in the event of this detecting an entry in a <team> package. Also
+# add <team> to the TEAMS list. 
+LIBCORE_PACKAGES="\
+  android.icu \
+  android.system \
+  com.android.bouncycastle \
+  com.android.conscrypt \
+  com.android.okhttp \
+  com.sun \
+  dalvik \
+  java \
+  javax \
+  libcore \
+  org.apache.harmony \
+  org.json \
+  org.w3c.dom \
+  org.xml.sax \
+  sun \
+  "
+[email protected]
+
+# List of teams.
+TEAMS=LIBCORE
+
+# Generate the list of packages and convert to a regular expression.
+PACKAGES=$(for t in $TEAMS; do echo $(eval echo \${${t}_PACKAGES}); done)
+RE=$(echo ${PACKAGES} | sed "s/ /|/g")
+git show --name-only --pretty=format: $1 | grep "config/hiddenapi-.*txt" | while read file; do
+    ENTRIES=$(grep -E "^L(${RE})/" <(git show $1:$file))
+    if [[ -n "${ENTRIES}" ]]; then
+      echo -e "\e[1m\e[31m$file $1 contains the following entries\e[0m"
+      echo -e "\e[1m\e[31mfor packages that are handled using UnsupportedAppUsage. Please remove\e[0m"
+      echo -e "\e[1m\e[31mthese entries and add annotations instead.\e[0m"
+      # Partition the entries by team and provide contact details to aid in fixing the issue.
+      for t in ${TEAMS}
+      do
+        PACKAGES=$(eval echo \${${t}_PACKAGES})
+        RE=$(echo ${PACKAGES} | sed "s/ /|/g")
+        TEAM_ENTRIES=$(grep -E "^L(${RE})/" <(echo "${ENTRIES}"))
+        if [[ -n "${TEAM_ENTRIES}" ]]; then
+          EMAIL=$(eval echo \${${t}_EMAIL})
+          echo -e "\e[33mContact ${EMAIL} or compat- for help with the following:\e[0m"
+          for i in ${ENTRIES}
+          do
+            echo -e "\e[33m  ${i}\e[0m"
+          done
+        fi
+      done
+      exit 1
+    fi
+done