From 926d459c8f44427d091446a2dc94251237d519f2 Mon Sep 17 00:00:00 2001
From: Michael Vines <mvines@gmail.com>
Date: Thu, 25 Oct 2018 09:13:25 -0700
Subject: [PATCH] Script away cargo version bumping

---
 RELEASE.md                         |  4 +-
 scripts/increment-cargo-version.sh | 64 ++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+), 2 deletions(-)
 create mode 100755 scripts/increment-cargo-version.sh

diff --git a/RELEASE.md b/RELEASE.md
index ebe907f32..995bfad07 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -12,9 +12,9 @@ When cutting a new channel branch these pre-steps are required:
 
 1. Pick your branch point for release on master.
 2. Create the branch.  The name should be "v" + the first 2 "version" fields from Cargo.toml.  For example, a Cargo.toml with version = "0.9.0" implies the next branch name is "v0.9".
-3. Update Cargo.toml to the next semantic version (e.g. 0.9.0 -> 0.10.0).
+3. Update Cargo.toml to the next semantic version (e.g. 0.9.0 -> 0.10.0) by running `./scripts/increment-cargo-version.sh`.
 4. Push your new branch to solana.git
-5. Land your Carto.toml change as a master PR.
+5. Land your Cargo.toml change as a master PR.
 
 At this point, ci/channel-info.sh should show your freshly cut release branch as "BETA_CHANNEL" and the previous release branch as "STABLE_CHANNEL".
 
diff --git a/scripts/increment-cargo-version.sh b/scripts/increment-cargo-version.sh
new file mode 100755
index 000000000..e32858966
--- /dev/null
+++ b/scripts/increment-cargo-version.sh
@@ -0,0 +1,64 @@
+#!/bin/bash -e
+
+usage() {
+  cat <<EOF
+usage: $0 [major|minor|patch]
+
+Increments the Cargo.toml version.
+A minor version increment is the default
+EOF
+  exit 0
+}
+
+here="$(dirname "$0")"
+cd "$here"/..
+source ci/semver_bash/semver.sh
+
+readCargoVersion() {
+  declare Cargo_toml="$1"
+
+  while read -r version equals semver _; do
+    if [[ $version = version && $equals = = ]]; then
+      echo "${semver//\"/}"
+      return
+    fi
+  done < <(cat "$Cargo_toml")
+  echo "Unable to locate version in $Cargo_toml" 1>&2
+}
+
+MAJOR=0
+MINOR=0
+PATCH=0
+SPECIAL=""
+semverParseInto "$(readCargoVersion ./Cargo.toml)" MAJOR MINOR PATCH SPECIAL
+[[ -n $MAJOR ]] || usage
+
+currentVersion="$MAJOR.$MINOR.$PATCH"
+
+case ${1:-minor} in
+patch)
+  PATCH=$((PATCH + 1))
+  ;;
+major)
+  MAJOR=$((MAJOR+ 1))
+  ;;
+minor)
+  MINOR=$((MINOR+ 1))
+  ;;
+*)
+  echo "Error: unknown argument: $1"
+  usage
+  ;;
+esac
+
+newVersion="$MAJOR.$MINOR.$PATCH"
+
+for Cargo_toml in {,common/}Cargo.toml; do
+  (
+    set -x
+    sed -i $Cargo_toml -e "s/^version = \"$currentVersion\"$/version = \"$newVersion\"/"
+  )
+done
+echo "$currentVersion -> $newVersion"
+
+exit 0