From d74c85d4ec77b12ceaae28db5a8e7961896d688a Mon Sep 17 00:00:00 2001
From: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Mon, 5 Feb 2024 18:12:38 +0300
Subject: [PATCH] all: mark rc versions separately

---
 bamboo-specs/test.yaml   | 16 ++++++++++-
 scripts/make/go-build.sh |  4 +--
 scripts/make/version.sh  | 62 +++++++++++++++++++++++++++++++---------
 3 files changed, 66 insertions(+), 16 deletions(-)

diff --git a/bamboo-specs/test.yaml b/bamboo-specs/test.yaml
index 239fe8a734a..532e7f4be09 100644
--- a/bamboo-specs/test.yaml
+++ b/bamboo-specs/test.yaml
@@ -6,6 +6,7 @@
     'name': 'AdGuard Home - Build and run tests'
 'variables':
     'dockerGo': 'adguard/golang-ubuntu:8.0'
+    'channel': 'development'
 
 'stages':
   - 'Tests':
@@ -73,7 +74,7 @@
                 make\
                         ARCH="amd64"\
                         OS="windows darwin linux"\
-                        CHANNEL="development"\
+                        CHANNEL=${bamboo.channel}\
                         SIGN=0\
                         PARALLELISM=1\
                         VERBOSE=2\
@@ -115,3 +116,16 @@
 'labels': []
 'other':
     'concurrent-build-plugin': 'system-default'
+
+'branch-overrides':
+    # rc-vX.Y.Z branches are the release candidate branches. They are created
+    # from the release branch and are used to build the release candidate
+    # images.
+  - '^rc-v[0-9]+\.[0-9]+\.[0-9]+':
+        # Build betas on release branches manually.
+        'triggers': []
+        # Set the default release channel on the release branch to beta, as we
+        # may need to build a few of these.
+        'variables':
+            'dockerGo': 'adguard/golang-ubuntu:8.0'
+            'channel': 'candidate'
diff --git a/scripts/make/go-build.sh b/scripts/make/go-build.sh
index 7f629cd8549..48d68c00d4c 100644
--- a/scripts/make/go-build.sh
+++ b/scripts/make/go-build.sh
@@ -51,12 +51,12 @@ readonly channel
 
 case "$channel"
 in
-('development'|'edge'|'beta'|'release')
+('development'|'edge'|'beta'|'release'|'candidate')
 	# All is well, go on.
 	;;
 (*)
 	echo "invalid channel '$channel', supported values are\
-		'development', 'edge', 'beta', and 'release'" 1>&2
+		'development', 'edge', 'beta', 'release', and 'candidate'" 1>&2
 	exit 1
 	;;
 esac
diff --git a/scripts/make/version.sh b/scripts/make/version.sh
index 42eee5fccf7..ddb223e23be 100644
--- a/scripts/make/version.sh
+++ b/scripts/make/version.sh
@@ -43,12 +43,29 @@ bump_minor='/^v[0-9]+\.[0-9]+\.0$/ {
 }
 
 {
-	printf("invalid release version: \"%s\"\n", $0);
+	printf("invalid minor release version: \"%s\"\n", $0);
 
 	exit 1;
 }'
 readonly bump_minor
 
+# bump_patch is an awk program that reads a patch release version, increments
+# the patch part of it, and prints the next version.
+#
+# shellcheck disable=SC2016
+bump_patch='/^v[0-9]+\.[0-9]+\.[0-9]+$/ {
+	print($1 "." $2 "." $3 + 1);
+
+	next;
+}
+
+{
+	printf("invalid patch release version: \"%s\"\n", $0);
+
+	exit 1;
+}'
+readonly bump_patch
+
 # get_last_minor_zero returns the last new minor release.
 get_last_minor_zero() {
 	# List all tags.  Then, select those that fit the pattern of a new minor
@@ -74,16 +91,8 @@ readonly channel
 case "$channel"
 in
 ('development')
-	# commit_number is the number of current commit within the branch.
-	commit_number="$( git rev-list --count master..HEAD )"
-	readonly commit_number
-
-	# The development builds are described with a combination of unset semantic
-	# version, the commit's number within the branch, and the commit hash, e.g.:
-	#
-	#   v0.0.0-dev.5-a1b2c3d4
-	#
-	version="v0.0.0-dev.${commit_number}+$( git rev-parse --short HEAD )"
+	# Use the dummy version for development builds.
+	version='v0.0.0'
 	;;
 ('edge')
 	# last_minor_zero is the last new minor release.
@@ -128,15 +137,42 @@ in
 
 	version="$last_tag"
 	;;
+('candidate')
+	# This pseudo-channel is used to set a proper versions into release
+	# candidate builds.
+
+	# last_beta is the most recent beta version git tag.  Assume the release
+	# candidate branch is always based on the following version's beta branch
+	# and thus the latest beta tag will be described.
+	last_beta="$( git describe --abbrev=0 )"
+	readonly last_tag
+
+	# current_branch is the name of the branch currently checked out.  It's
+	# assumed to be a release candidate branch and have a name like:
+	#
+	#   rc-v1.23.456
+	#
+	current_branch="$( git rev-parse --abbrev-ref HEAD )"
+	readonly current_branch
+
+	# num_commits_since_beta is the number of commits within the branch.
+	num_commits_since_beta="$( git rev-list --count "$last_beta".."$current_branch" )"
+	readonly num_commits_since_beta
+
+	release_version="$( echo "$current_branch" | cut -d '-' -f 2 )"
+	readonly release_version
+
+	version="${release_version}-rc.${num_commits_since_beta}"
+	;;
 (*)
 	echo "invalid channel '$channel', supported values are\
-		'development', 'edge', 'beta', and 'release'" 1>&2
+		'development', 'edge', 'beta', 'release' and 'candidate'" 1>&2
 	exit 1
 	;;
 esac
 
 # Finally, make sure that we don't output invalid versions.
-if ! echo "$version" | grep -E -e '^v[0-9]+\.[0-9]+\.[0-9]+(-(a|b|dev)\.[0-9]+)?(\+[[:xdigit:]]+)?$' -q
+if ! echo "$version" | grep -E -e '^v[0-9]+\.[0-9]+\.[0-9]+(-(a|b|dev|rc)\.[0-9]+)?(\+[[:xdigit:]]+)?$' -q
 then
 	echo "generated an invalid version '$version'" 1>&2