Linter checks go versions in Dockerfile and YAML files

.golangci.yml

@@ -57,7 +57,7 @@ linters-settings:
       - G306 # Poor file permissions used when writing to a new file.
 
   staticcheck:
-    go: "1.21"
+    go: "1.22.5"
     checks: ["-SA1019"]
 
   lll:

Makefile

@@ -23,14 +23,20 @@ ANDROID_BUILD := $(ANDROID_BUILD_DIR)/Lndmobile.aar
 
 COMMIT := $(shell git describe --tags --dirty)
 
-GO_VERSION := $(shell go version | sed -nre 's/^[^0-9]*(([0-9]+\.)*[0-9]+).*/\1/p')
-GO_VERSION_MINOR := $(shell echo $(GO_VERSION) | cut -d. -f2)
+# Determine the minor version of the active Go installation.
+ACTIVE_GO_VERSION := $(shell go version | sed -nre 's/^[^0-9]*(([0-9]+\.)*[0-9]+).*/\1/p')
+ACTIVE_GO_VERSION_MINOR := $(shell echo $(ACTIVE_GO_VERSION) | cut -d. -f2)
 
 LOOPVARFIX :=
-ifeq ($(shell expr $(GO_VERSION_MINOR) \>= 21), 1)
+ifeq ($(shell expr $(ACTIVE_GO_VERSION_MINOR) \>= 21), 1)
 	LOOPVARFIX := GOEXPERIMENT=loopvar
 endif
 
+# GO_VERSION is the Go version used for the release build, docker files, and
+# GitHub Actions. This is the reference version for the project. All other Go
+# versions are checked against this version.
+GO_VERSION = 1.22.5
+
 GOBUILD := $(LOOPVARFIX) go build -v
 GOINSTALL := $(LOOPVARFIX) go install -v
 GOTEST := $(LOOPVARFIX) go test
@@ -297,11 +303,27 @@ fmt-check: fmt
 	@$(call print, "Checking fmt results.")
 	if test -n "$$(git status --porcelain)"; then echo "code not formatted correctly, please run `make fmt` again!"; git status; git diff; exit 1; fi
 
-#? lint: Run static code analysis
-lint: docker-tools
+#? check-go-version-yaml: Verify that the Go version is correct in all YAML files
+check-go-version-yaml:
+	@$(call print, "Checking for target Go version (v$(GO_VERSION)) in YAML files (*.yaml, *.yml)")
+	./scripts/check-go-version-yaml.sh $(GO_VERSION)
+
+#? check-go-version-dockerfile: Verify that the Go version is correct in all Dockerfile files
+check-go-version-dockerfile:
+	@$(call print, "Checking for target Go version (v$(GO_VERSION)) in Dockerfile files (*Dockerfile)")
+	./scripts/check-go-version-dockerfile.sh $(GO_VERSION)
+
+#? check-go-version: Verify that the Go version is correct in all project files
+check-go-version: check-go-version-dockerfile check-go-version-yaml
+
+#? lint-source: Run static code analysis
+lint-source: docker-tools
 	@$(call print, "Linting source.")
 	$(DOCKER_TOOLS) golangci-lint run -v $(LINT_WORKERS)
 
+#? lint: Run static code analysis
+lint: check-go-version lint-source
+
 #? protolint: Lint proto files using protolint
 protolint:
 	@$(call print, "Linting proto files.")

docker/btcd/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21.0-alpine as builder
+FROM golang:1.22.5-alpine as builder
 
 LABEL maintainer="Olaoluwa Osuntokun <laolu@lightning.engineering>"
 

docs/INSTALL.md

@@ -100,16 +100,16 @@ the following commands for your OS:
   <summary>Linux (x86-64)</summary>
 
   ```
-  wget https://dl.google.com/go/go1.22.4.linux-amd64.tar.gz
-  sha256sum go1.22.4.linux-amd64.tar.gz | awk -F " " '{ print $1 }'
+  wget https://dl.google.com/go/go1.22.5.linux-amd64.tar.gz
+  sha256sum go1.22.5.linux-amd64.tar.gz | awk -F " " '{ print $1 }'
   ```
 
   The final output of the command above should be
-  `ba79d4526102575196273416239cca418a651e049c2b099f3159db85e7bade7d`. If it
+  `904b924d435eaea086515bc63235b192ea441bd8c9b198c507e85009e6e4c7f0`. If it
   isn't, then the target REPO HAS BEEN MODIFIED, and you shouldn't install
   this version of Go. If it matches, then proceed to install Go:
   ```
-  sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.22.4.linux-amd64.tar.gz
+  sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.22.5.linux-amd64.tar.gz
   export PATH=$PATH:/usr/local/go/bin
   ```
 </details>
@@ -118,16 +118,16 @@ the following commands for your OS:
   <summary>Linux (ARMv6)</summary>
 
   ```
-  wget https://dl.google.com/go/go1.22.4.linux-armv6l.tar.gz
-  sha256sum go1.22.4.linux-armv6l.tar.gz | awk -F " " '{ print $1 }'
+  wget https://dl.google.com/go/go1.22.5.linux-armv6l.tar.gz
+  sha256sum go1.22.5.linux-armv6l.tar.gz | awk -F " " '{ print $1 }'
   ```
 
   The final output of the command above should be
-  `e2b143fbacbc9cbd448e9ef41ac3981f0488ce849af1cf37e2341d09670661de`. If it
+  `8c4587cf3e63c9aefbcafa92818c4d9d51683af93ea687bf6c7508d6fa36f85e`. If it
   isn't, then the target REPO HAS BEEN MODIFIED, and you shouldn't install
   this version of Go. If it matches, then proceed to install Go:
   ```
-  sudo rm -rf /usr/local/go && tar -C /usr/local -xzf go1.22.4.linux-armv6l.tar.gz
+  sudo rm -rf /usr/local/go && tar -C /usr/local -xzf go1.22.5.linux-armv6l.tar.gz
   export PATH=$PATH:/usr/local/go/bin
   ```  
 

lnrpc/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21.0-bookworm
+FROM golang:1.22.5-bookworm
 
 RUN apt-get update && apt-get install -y \
   git \

scripts/check-go-version-dockerfile.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+
+# Function to check if the Dockerfile contains only the specified Go version.
+check_go_version() {
+    local dockerfile="$1"
+    local required_go_version="$2"
+
+    # Use grep to find lines with 'FROM golang:'
+    local go_lines=$(grep -i '^FROM golang:' "$dockerfile")
+
+    # Check if all lines have the required Go version.
+    if [ -z "$go_lines" ]; then
+        # No Go version found in the file. Skip the check.
+        return
+    elif echo "$go_lines" | grep -q -v "$required_go_version"; then
+        echo "$go_lines"
+        echo "Error: $dockerfile does not use Go version $required_go_version exclusively."
+        exit 1
+    else
+        echo "$dockerfile is using Go version $required_go_version."
+    fi
+}
+
+# Check if the target Go version argument is provided.
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <target_go_version>"
+    exit 1
+fi
+
+target_go_version="$1"
+
+# File paths to be excluded from the check.
+exception_list=(
+    # Exclude the tools Dockerfile as otherwise the linter may need to be
+    # considered every time the Go version is updated.
+    "./tools/Dockerfile"
+)
+
+# is_exception checks if a file is in the exception list.
+is_exception() {
+    local file="$1"
+    for exception in "${exception_list[@]}"; do
+        if [ "$file" == "$exception" ]; then
+            return 0
+        fi
+    done
+    return 1
+}
+
+# Search for Dockerfiles in the current directory and its subdirectories.
+dockerfiles=$(find . -type f -name "*.Dockerfile" -o -name "Dockerfile")
+
+# Check each Dockerfile
+for file in $dockerfiles; do
+    # Skip the file if it is in the exception list.
+    if is_exception "$file"; then
+        echo "Skipping $file"
+        continue
+    fi
+
+    check_go_version "$file" "$target_go_version"
+done
+
+echo "All Dockerfiles pass the Go version check for Go version $target_go_version."

scripts/check-go-version-yaml.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Function to check if the YAML file contains the specified Go version after
+# field 'go:'.
+check_go_version_yaml() {
+    local yamlfile="$1"
+    local required_go_version="$2"
+
+    # Use grep to find lines with 'go:'. The grep exist status is ignored.
+    local go_lines=$(grep -i '^\s*go:\s*"[0-9]\+\.[0-9]\+\(\.[0-9]\+\)\?"' "$yamlfile" || true)
+
+    # Check if any lines specify the Go version.
+    if [ -n "$go_lines" ]; then
+        # Extract the Go version from the file's lines. Example matching strings:
+        # go: "1.21.0"
+        local extracted_go_version=$(echo "$go_lines" | sed -n 's/.*go: "\([^"]*\)".*/\1/p')
+
+        # Check if the extracted Go version matches the required version.
+        if [ "$extracted_go_version" != "$required_go_version" ]; then
+            echo "Error finding pattern 'go:': $yamlfile specifies Go version '$extracted_go_version', but required version is '$required_go_version'."
+            exit 1
+        else
+            echo "$yamlfile specifies Go version $required_go_version."
+        fi
+    fi
+}
+
+# Function to check if the YAML file contains the specified Go version after
+# environment variable 'GO_VERSION:'.
+check_go_version_env_variable() {
+    local yamlfile="$1"
+    local required_go_version="$2"
+
+    # Use grep to find lines with 'GO_VERSION:'. The grep exist status is
+    # ignored.
+    local go_lines=$(grep -i 'GO_VERSION:' "$yamlfile" || true)
+
+    # Check if any lines specify the Go version.
+    if [ -n "$go_lines" ]; then
+        # Extract the Go version from the file's lines. Example matching strings:
+        # GO_VERSION: "1.21.0"
+        # GO_VERSION: '1.21.0'
+        # GO_VERSION: 1.21.0
+        # GO_VERSION:1.21.0
+        #   GO_VERSION:1.21.0
+        local extracted_go_version=$(echo "$go_lines" | sed -n 's/.*GO_VERSION[: ]*["'\'']*\([0-9.]*\).*/\1/p')
+
+        # Check if the extracted Go version matches the required version.
+        if [ "$extracted_go_version" != "$required_go_version" ]; then
+            echo "Error finding pattern 'GO_VERSION:': $yamlfile specifies Go version '$extracted_go_version', but required version is '$required_go_version'."
+            exit 1
+        else
+            echo "$yamlfile specifies Go version $required_go_version."
+        fi
+    fi
+}
+
+# Check if the target Go version argument is provided.
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <target_go_version>"
+    exit 1
+fi
+
+target_go_version="$1"
+
+# Search for YAML files in the current directory and its subdirectories.
+yaml_files=$(find . -type f \( -name "*.yaml" -o -name "*.yml" \))
+
+# Check each YAML file.
+for file in $yaml_files; do
+    check_go_version_yaml "$file" "$target_go_version"
+    check_go_version_env_variable "$file" "$target_go_version"
+done
+
+echo "All YAML files pass the Go version check for Go version $target_go_version."