Add sanity check framework

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.config/sanity.d/deprecated-repo-runner-images.sh

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+function sanity_deprecated_reporunner_images() {
+	report debug "Check for deprecated repo-runner images"
+
+	[[ -f .repo-runner.yaml ]] || {
+		report debug "No Repo-Runner config found"
+		return 0
+	}
+
+	grep 'quay.io/luzifer/' .repo-runner.yaml || {
+		report success "No Quay image found in Repo-Runner config"
+		return 0
+	}
+
+	report error "Repo-Runner config contains old Quay image"
+	return 1
+}

.config/sanity.d/has-readme.sh

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+function sanity_has_readme() {
+	report debug "Check for README.md existence"
+
+	[[ -f README.md ]] || {
+		report error "No README.md found"
+		return 1
+	}
+
+	report success "README.md found"
+}

.config/sanity.d/makefile-autohook.sh

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+function sanity_makefile_contains_autohook() {
+	report debug "Check for auto-hook in Makefile"
+
+	[[ -f Makefile ]] || {
+		report debug "No Makefile found"
+		return 0
+	}
+
+	grep '^auto-hook-' Makefile || {
+		report success "No auto-hooks found"
+		return 0
+	}
+
+	report error "Makefile contains auto-hooks"
+	return 1
+}

.config/sanity.d/placeholder-in-license.sh

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+function sanity_year_placeholder_in_license() {
+	report debug "Check for [year] placeholder in LICENSE file"
+
+	[[ -f LICENSE ]] || {
+		report warn "No LICENSE file found"
+		return 0
+	}
+
+	grep '\[year\]' LICENSE || {
+		report success "No placeholder found"
+		return 0
+	}
+
+	report error "LICENSE file contains [year] placeholder"
+	return 1
+}

bin/sanity

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+#!/bin/bash
+set -euo pipefail
+
+source ${HOME}/bin/script_framework.sh
+
+reportpad=0
+retcode=0
+
+# report is a wrapper to display messages in a certain level with
+# added information about the function yielding the result. It
+# must be called from within a "sanity_*" function
+function report() {
+	local levelfunc="$1"
+	shift
+	local message="$@"
+	local func="${FUNCNAME[1]#sanity_}"
+
+	"$levelfunc" "$(printf "%-${reportpad}s" ${func}) ${message}"
+}
+
+# Load all part-files from the ~/.config/sanity.d directory
+for partFile in "${HOME}/.config/sanity.d"/*.sh; do
+	source "${partFile}"
+done
+
+# Collect all functions present within the part-files matching the
+# "sanity_*" naming schema
+parts=($(declare -F | awk '/sanity_[0-9a-zA-Z_-]+$/{ print $3 }'))
+
+# For display reasons store the longest function name to be used in
+# report to format the output in columns
+for func in "${parts[@]}"; do
+	lfunc=$((${#func} - 7)) # 7 = length of stripped "sanity_" prefix
+	[ ${lfunc} -lt ${reportpad} ] || reportpad=${lfunc}
+done
+
+# Execute all "sanity_*" functions and store exit-code 1 if one of
+# them fails to exit gracefully
+for func in "${parts[@]}"; do
+	"${func}" || retcode=1
+done
+
+exit ${retcode}