From df63a9754baa2399ee860282964720a2225aa56c Mon Sep 17 00:00:00 2001
From: Simon Vieille <simon.vieille@trinaps.com>
Date: Thu, 25 May 2023 13:49:27 +0200
Subject: [PATCH] update changelog-generator

---
 bin/changelog-generator | 155 ++++++++++++++++++++++++++--------------
 1 file changed, 103 insertions(+), 52 deletions(-)

diff --git a/bin/changelog-generator b/bin/changelog-generator
index 3a6d748..aac12de 100755
--- a/bin/changelog-generator
+++ b/bin/changelog-generator
@@ -1,13 +1,13 @@
 #!/bin/sh
 
 usage() {
-	printf "Usage: %s [-h] -f /path/to/CHANGELOG.md\n" "$0"
+    printf "Usage: %s [-l DEBUG_LEVEL] [-h] -f /path/to/CHANGELOG.md\n" "$0"
 }
 
 help() {
     cat << EOH
  SYNOPSIS
-    $0 [-h] -f /path/to/CHANGELOG.md
+    $0 [-l DEBUG_LEVEL] [-h] -f /path/to/CHANGELOG.md
 
  DESCRIPTION
 
@@ -18,40 +18,44 @@ help() {
     -h    Show this help
 
     -f FILE
-	      Path to changelog
+          Path to changelog
+
+    -l debug|info|notice|warning|error
+          Debug level
 EOH
 }
 
 on_interrupt() {
-	print "Process aborted!\n"
+    print "Process aborted!\n"
 
-	exit 130
+    exit 130
 }
 
 main() {
-	while getopts "hf:" option; do
-		case "${option}" in
-			h) help; exit 0;;
-			f) CHANGELOG_FILE="$OPTARG";;
-			*) usage; exit 1;;
-		esac
-	done
+    while getopts "hf:" option; do
+        case "${option}" in
+            h) help; exit 0;;
+            f) CHANGELOG_FILE="$OPTARG";;
+            l) LOG_VERBOSE="$OPTARG";;
+            ?) log -l error "$(usage)"; exit 1;;
+        esac
+    done
 
-	if [ -z "$CHANGELOG_FILE" ]; then
-		printf "The file of the changelog is required.\n"
-		exit 1
-	fi
+    if [ -z "$CHANGELOG_FILE" ]; then
+        log -l error "The file of the changelog is required."
+        exit 1
+    fi
 
-	if [ ! -f "$CHANGELOG_FILE" ]; then
-		printf "No such file: %s\n" "$CHANGELOG_FILE"
-		exit 1
-	fi
+    if [ ! -f "$CHANGELOG_FILE" ]; then
+        log -l error "No such file: $CHANGELOG_FILE"
+        exit 1
+    fi
 
-	temp_directory="$(mktemp -d)"
-	version=
-	is_first=1
+    temp_directory="$(mktemp -d)"
+    version=
+    is_first=1
 
-	cat << EOF
+    cat << EOF
 ---
 hide:
   - navigation
@@ -62,40 +66,87 @@ hide:
 
 EOF
 
+    while read -r line; do
+        if printf "%s" "$line" | grep -q -E '^## '; then
+            version="$(printf "%s" "$line" | sed 's/^## //')"
 
-	while read -r line; do
-		if printf "%s" "$line" | grep -q -E '^## '; then
-			version="$(printf "%s" "$line" | sed 's/^## //')"
+            if [ "$version" = "[Unreleased]" ]; then
+                version=""
+            fi
+        elif [ -n "$version" ]; then
+            printf "%s\n" "$line" >> "$temp_directory/$version"
+        fi
+    done < "$CHANGELOG_FILE"
 
-			if [ "$version" = "[Unreleased]" ]; then
-				version=""
-			fi
-		elif [ -n "$version" ]; then
-			printf "%s\n" "$line" >> "$temp_directory/$version"
-		fi
-	done < "$CHANGELOG_FILE"
+    while read -r line; do
+        if printf "%s" "$line" | grep -q -E '^## '; then
+            version="$(printf "%s" "$line" | sed 's/^## //')"
 
-	while read -r line; do
-		if printf "%s" "$line" | grep -q -E '^## '; then
-			version="$(printf "%s" "$line" | sed 's/^## //')"
+            if [ "$version" != "[Unreleased]" ]; then
+                log -l info "Version detected: $version"
 
-			if [ "$version" != "[Unreleased]" ]; then
-				if [ $is_first -eq 1 ]; then
-					printf "???+ success \"%s\"\n" "$version"
-					is_first=0
-				else
-					printf "??? abstract \"%s\"\n" "$version"
-				fi
+                if [ $is_first -eq 1 ]; then
+                    printf "???+ success \"%s\"\n" "$version"
+                    is_first=0
+                else
+                    printf "??? abstract \"%s\"\n" "$version"
+                fi
 
-				sed \
-					-e 's/### \(.*\)/\n    **\1**\n/g' \
-					-e 's/^/    /g' \
-					"$temp_directory/$version"
-			fi
-		fi
-	done < "$CHANGELOG_FILE"
+                sed \
+                    -e 's/### \(.*\)/\n    **\1**\n/g' \
+                    -e 's/^/    /g' \
+                    "$temp_directory/$version"
+            fi
+        fi
+    done < "$CHANGELOG_FILE"
 
-	exit 0
+    exit 0
+}
+
+log() {
+    LOG_VERBOSE="${LOG_VERBOSE:-info}"
+    LEVEL=info
+    TIME=
+
+    while getopts "tl:" option; do
+        case "${option}" in
+            l) LEVEL="$OPTARG"; shift $((OPTIND-1));;
+            t) TIME="$(printf "[%s] " "$(date +'%Y-%m-%dT%H:%M:%S.%s')")"; shift $((OPTIND-1));;
+            *) exit 1;;
+        esac
+    done
+
+    if [ -t 2 ] && [ -z "${NO_COLOR-}" ]; then
+        case "${LEVEL}" in
+            debug) COLOR="$(tput setaf 3)";;
+            notice) COLOR="$(tput setaf 4)";;
+            warning) COLOR="$(tput setaf 5)";;
+            error) COLOR="$(tput setaf 1)";;
+            *) COLOR="$(tput sgr0)";;
+        esac
+    fi
+
+    case "${LEVEL}" in
+        debug) LEVEL=100;;
+        notice) LEVEL=250;;
+        warning) LEVEL=300;;
+        error) LEVEL=400;;
+        *) LEVEL=200;;
+    esac
+
+    case "${LOG_VERBOSE}" in
+        debug) LOG_VERBOSE_VALUE=100;;
+        notice) LOG_VERBOSE_VALUE=250;;
+        warning) LOG_VERBOSE_VALUE=300;;
+        error) LOG_VERBOSE_VALUE=400;;
+        *) LOG_VERBOSE_VALUE=200;;
+    esac
+
+    if [ $LEVEL -ge $LOG_VERBOSE_VALUE ]; then
+        printf "%s\n" "$*" | while IFS='' read -r LINE; do
+            printf "%s%s%s\n" "${COLOR:-}" "${TIME:-}" "$LINE" >&2
+        done
+    fi
 }
 
 trap on_interrupt INT