From f8901587c5a513f1c588f660af59b8e3d65147f5 Mon Sep 17 00:00:00 2001
From: Ein Verne <einverne@gmail.com>
Date: Fri, 18 Oct 2019 18:18:19 +0800
Subject: [PATCH] Add git log by day

---
 script/git-log-by-day.sh | 76 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100755 script/git-log-by-day.sh

diff --git a/script/git-log-by-day.sh b/script/git-log-by-day.sh
new file mode 100755
index 0000000..3e89e54
--- /dev/null
+++ b/script/git-log-by-day.sh
@@ -0,0 +1,76 @@
+#!/bin/bash -
+#===============================================================================
+#
+#          FILE: git-log.sh
+#
+#         USAGE: ./git-log.sh
+#
+#   DESCRIPTION: 
+#
+#       OPTIONS: ---
+#  REQUIREMENTS: ---
+#          BUGS: ---
+#         NOTES: ---
+#        AUTHOR: YOUR NAME (), 
+#  ORGANIZATION: 
+#       CREmTED: 10/18/2019 06:04:51 PM
+#      REVISION:  ---
+#===============================================================================
+
+set -o nounset                                  # Treat unset variables as an error
+
+
+# Generates git changelog grouped by day and output it to file
+#
+# optional parameters
+# -a    to filter by author
+# -s    to select start date
+# -e    to select end date
+# -o    to save it to file
+# -r    to specify the repository path
+
+NEXT=$(date +%F)
+SINCE="last.Monday"
+UNTIL=$NEXT
+AUTHOR=$(git config user.email)
+OUTPUT="$(date +%F).log"
+
+while getopts "a:s:e:o:r:" arg
+do
+  case $arg in
+    a)
+      AUTHOR=$OPTARG
+      ;;
+    s)
+      SINCE=$OPTARG
+      ;;
+    e)
+      UNTIL=$OPTARG
+      ;;
+    o)
+      OUTPUT=$OPTARG
+      ;;
+    r)
+      REPO=$OPTARG
+      ;;
+    ?)
+      echo "unknown argument"
+      exit 1
+      ;;
+  esac
+done
+
+(
+git -C "${REPO}" log --author="${AUTHOR}" --since="${SINCE}" --until="${UNTIL}" --format="%cd" --date=short | sort -u | while read DATE ; do
+  GIT_PAGER=$(git -C "${REPO}" log --no-merges --reverse --format="* %s" --since="${DATE} 00:00:00" --until="${DATE} 23:59:59" --author="${AUTHOR}")
+  if [ ! -z "$GIT_PAGER" ]
+  then
+    echo "[${DATE}]"
+    echo "${GIT_PAGER}"
+    echo
+  fi
+done
+) > $OUTPUT
+
+echo "log is written to ${OUTPUT}"
+