[dev.boringcrypto] misc/boring: add scripts to automate merges and releases

Change-Id: Id62b84b110af78e4ec8c34a8b71244027931b4f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/182340
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>

misc/boring/merge.sh

@@ -0,0 +1,32 @@
+#! /bin/bash
+set -euo pipefail
+
+if [ "$#" -ne 2 ]; then
+    echo "usage: merge.sh <target branch> <source revision>"
+    echo ""
+    echo "example: merge.sh dev.boringcrypto master"
+    echo "         merge.sh dev.boringcrypto.go1.10 go1.10.7"
+    exit 1
+fi
+
+set -x
+TARGET="$1"
+SOURCE="$2"
+WORKTREE="$(mktemp -d)"
+BRANCH="boring/merge-$TARGET-$(date +%Y%m%d%H%M%S)"
+
+git fetch
+git worktree add --track -b "$BRANCH" "$WORKTREE" "origin/$TARGET"
+
+cd "$WORKTREE"
+export GIT_GOFMT_HOOK=off
+git merge -m "all: merge $SOURCE into $TARGET" "$SOURCE" || \
+    (git rm VERSION && git commit -m "all: merge $SOURCE into $TARGET")
+
+if ! git log --format=%B -n 1 | grep "\[dev.boringcrypto"; then
+    echo "The commit does not seem to be targeting a BoringCrypto branch."
+    exit 1
+fi
+
+git codereview mail -r dmitshur@golang.org,filippo@golang.org -trybot HEAD
+cd - && git worktree remove "$WORKTREE"

misc/boring/release.sh

@@ -0,0 +1,32 @@
+#! /bin/bash
+set -euo pipefail
+
+if [ "$#" -eq 0 ]; then
+    echo "usage: <target branch> [<target branch> ...]"
+    echo ""
+    echo "example: release.sh dev.boringcrypto.go1.11 dev.boringcrypto.go1.12"
+    exit 1
+fi
+
+set -x
+WORKTREE="$(mktemp -d)"
+BRANCH="boring/release-$(date +%Y%m%d%H%M%S)"
+
+git fetch
+git worktree add --track -b "$BRANCH" "$WORKTREE" origin/dev.boringcrypto
+
+cd "$WORKTREE/src"
+./make.bash
+
+cd ../misc/boring
+for branch in "$@"; do
+    ./build.release "origin/$branch"
+done
+./build.docker
+
+git add RELEASES
+git commit -m "misc/boring: add new releases to RELEASES file"
+git codereview mail -r dmitshur@golang.org,filippo@golang.org
+
+rm *.tar.gz
+cd - && git worktree remove "$WORKTREE"