add developer scripts

Author: u-fred

common.sh

@@ -1,4 +1,6 @@
 readonly branch=15-qpr2
+#readonly tag=
+readonly developer_port_branch=port-to-16
 readonly aosp_tag_old=android-15.0.0_r30
 readonly aosp_tag=android-15.0.0_r30
 

developer-scripts/manage.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -o errexit -o nounset -o pipefail
+source "$(dirname ${BASH_SOURCE[0]})/../common.sh"
+
+readonly script_dir=$(dirname "$(realpath ${BASH_SOURCE[0]})")
+
+[[ ! $# -eq 1 ]] && user_error "expected 1 argument"
+readonly action=$1
+
+if [[ $action == "add-aosp-remotes" ]]; then
+  repo forall -v -e -p -c "${script_dir}/repo-add-aosp-remotes.sh"
+elif [[ $action == "fork-all-graphene" ]]; then
+  repo forall -v -e -p -c "${script_dir}/repo-fork-all-graphene.sh"
+elif [[ $action == "rebase-all-graphene" ]]; then
+  repo forall -v -e -p -c "${script_dir}/repo-rebase-all-graphene.sh"
+else
+  user_error "unrecognized action, expected add-aosp-remotes|fork-all-graphene|rebase-all-graphene"
+fi
+

developer-scripts/repo-add-aosp-remotes.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# TODO: Write better bash.
+
+set -o errexit -o nounset -o pipefail
+source "$(dirname ${BASH_SOURCE[0]})/../common.sh"
+
+readonly aosp_repo_base="https://android.googlesource.com/"
+
+add_remote() {
+  aosp_repo="${1//_/\/}"
+  aosp_remote="${aosp_repo_base}${aosp_repo}"
+
+  git_exit=0
+  git remote add upstream $aosp_remote &>/dev/null || git_exit=$?
+  if [[ "${git_exit}" == 3 ]]; then
+    echo "success, already exists"
+  elif [[ "${git_exit}" != 0 ]]; then
+    echo "fail"
+    exit 1
+  else
+    echo "success"
+  fi
+}
+
+# We can't just check if $REPO_REMOTE == "grapheneos" because not all of our repos are AOSP forks. `repo` project groups
+# would allow us to simplify this so that we could just run `repo forall -g aosp-forks`.
+for graphene_repo in "${aosp_forks[@]}"; do
+  if [[ "${graphene_repo}" == "${REPO_PROJECT}" ]] ; then
+    add_remote "${graphene_repo}"
+    exit 0
+  fi
+done
+

developer-scripts/repo-fork-all-graphene.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# TODO: Write better bash.
+# TODO: Handle grapheneos-gitlab remote.
+# TODO: `gh repo fork` will silently ignore `--remote-name` if an existing remote exists. We should handle this,
+# TODO: otherwise it shows up as an error when repo-rebase-all-graphene.sh looks for my-fork remote.
+
+set -o errexit -o nounset -o pipefail
+source "$(dirname ${BASH_SOURCE[0]})/../common.sh"
+
+if [[ "${REPO_REMOTE}" == "grapheneos" ]]; then
+  if [[ -z "${GH_TOKEN:-}" ]]; then
+    user_error "expected GH_TOKEN environment variable to be set"
+  fi
+
+  # Without this, `repo fork` will complain about GrapheneOS repos that are GitHub forks themselves.
+  # Example: platform_development.
+  if ! gh repo set-default GrapheneOS/"${REPO_PROJECT}" &>/dev/null
+  then
+    # This will happen if repository doesn't exist in GrapheneOS GitHub. Unlikely to occur unless using an old tag, in
+    # which case temporarily update this branch to exit 0. The reason `repo sync` still works is because Graphene
+    # redirects the URL to an archive.
+    echo "fail, probably because the remote repository does not exist"
+    exit 1
+  fi
+
+  # This will add my-fork remote and exit with 0 even if the fork already exists.
+  if ! gh repo fork --remote --remote-name my-fork &>/dev/null
+  then
+    echo "fail"
+    exit 1
+  fi
+
+  echo "success"
+  exit 0
+fi

developer-scripts/repo-rebase-all-graphene.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# TODO: Write better bash.
+# TODO: Handle grapheneos-gitlab remote.
+# TODO: Add `repo sync --tags -j8 --force-checkout --force-sync` to this?
+
+set -o errexit -o nounset -o pipefail
+source "$(dirname ${BASH_SOURCE[0]})/../common.sh"
+
+rebase() {
+  git fetch -q --tags --all
+
+  # Allows us to run this script multiple times if something went wrong.
+  git rebase --abort &>/dev/null || true
+
+  git checkout -q -B "${developer_port_branch}" "${tag}"
+  git_exit=0
+  git rebase -q --onto $aosp_tag $aosp_tag_old &>/dev/null || git_exit=$?
+  if [[ "${git_exit}" == 1 ]]; then
+    echo "success, but requires manual conflict resolution"
+    return 0
+  elif [[ "${git_exit}" != 0 ]]; then
+    # If the rebase never begins due to bad tags then git exits with 128.
+    echo "fail, unexpected error during rebase"
+    exit 1
+  fi
+
+  if [[ "${REPO_REMOTE}" == "grapheneos" ]]; then
+    if ! git push -q -f my-fork $developer_port_branch &>/dev/null
+    then
+      echo "fail, unexpected error during push"
+      exit 2
+    fi
+    echo "success"
+  else
+    echo "success, but can't push due to hosted on GitLab"
+  fi
+}
+
+# We can't just check if $REPO_REMOTE == "grapheneos" because not all of our repos are AOSP forks. `repo` project groups
+# would allow us to simplify this so that we could just run `repo forall -g aosp-forks`.
+for graphene_repo in "${aosp_forks[@]}"; do
+  if [[ "${graphene_repo}" == "${REPO_PROJECT}" ]] ; then
+    rebase "${graphene_repo}"
+    exit 0
+  fi
+done