fix(worklog): 下放 LOG 目標頁計算並統一 hash

tools/worklog-target.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env sh
+# worklog-target.sh: 產生 worklog wiki 目標頁。
+# 用法:
+#   worklog-target.sh <owner/repo> [hash|page|contents|all]
+set -eu
+
+usage() {
+  echo 'usage: worklog-target.sh <owner/repo> [hash|page|contents|all]' >&2
+  exit 2
+}
+
+[ "$#" -ge 1 ] || usage
+[ "$#" -le 2 ] || usage
+
+repo=$1
+field=${2:-page}
+
+if [ -z "$repo" ]; then
+  usage
+fi
+
+if command -v sha1sum >/dev/null 2>&1; then
+  raw=$(printf '%s' "$repo" | sha1sum | awk '{print $1}')
+elif command -v shasum >/dev/null 2>&1; then
+  raw=$(printf '%s' "$repo" | shasum -a 1 | awk '{print $1}')
+else
+  echo 'no SHA-1 helper found' >&2
+  exit 1
+fi
+
+hash=$(printf '%s' "$raw" | cut -c1-8 | tr a-f A-F)
+case "$hash" in
+  [0-9ABC]*) hash="H$(printf '%s' "$hash" | cut -c1-7)" ;;
+esac
+
+page="LOG_${hash}"
+contents='LOG_CONTENTS'
+
+case "$field" in
+  hash) printf '%s\n' "$hash" ;;
+  page) printf '%s\n' "$page" ;;
+  contents) printf '%s\n' "$contents" ;;
+  all)
+    printf 'HASH=%s\n' "$hash"
+    printf 'PAGE=%s\n' "$page"
+    printf 'CONTENTS=%s\n' "$contents"
+    ;;
+  *) usage ;;
+esac