1 files changed, 60 insertions, 0 deletions
diff --git a/fix-dates.sh b/fix-dates.sh
new file mode 100755
index 0000000..74a5bd6
--- /dev/null
+++ b/fix-dates.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+progname="fix-dates.sh"
+
+usage()
+{
+    progname="$1"
+    printf "Usage: %s <preview|fix> [path-to-file [path-to-file [...]]]\n" \
+	   "${progname}"
+}
+
+get_date()
+{
+    file_path="$1"
+
+    max_lines=$(wc -l markdown/* | \
+                    sort -n | tail -n2 | head -n +1 | \
+                    awk '{print $1}')
+    date=$(grep -h -B "${max_lines}"  '^---$' "${file_path}" | \
+               grep '^date:' | sed 's/^date: \?//')
+    echo "${date}"
+}
+
+preview_file()
+{
+    file_path="$1"
+    date="$(get_date "${file_path}")"
+    echo "${file_path}":"${date}"
+}
+
+fix_file()
+{
+    file_path="$1"
+    date="$(get_date "${file_path}")"
+
+    new_date_format=$(date --date="${date}" '+%F %R')
+
+    sed "s/${date}/${new_date_format}/g" -i "${file_path}"
+}
+
+if [ $# -lt 2 ] ; then
+    usage "${progname}"
+    exit 64
+fi
+
+command="$1"
+shift 1
+
+if [ "${command}" = "preview" ] ; then
+    for file in $@ ; do
+	preview_file "${file}"
+    done
+elif [ "${command}" = "fix" ] ; then
+    for file in $@ ; do
+	fix_file "${file}"
+    done
+else
+    usage "${progname}"
+    exit 64
+fi