[git_extras] add only needed scripts

git_extras/git_merged

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# https://github.com/tj/git-extras/blob/master/bin/git-show-merged-branches
+
+git_extra_default_branch() {
+    local extras_default_branch init_default_branch
+    extras_default_branch=$(git config --get git-extras.default-branch)
+    init_default_branch=$(git config --get init.defaultBranch)
+    if [ -n "$extras_default_branch" ]; then
+        echo "$extras_default_branch"
+    elif [ -n "$init_default_branch" ]; then
+        echo "$init_default_branch"
+    else
+        echo "main"
+    fi
+}
+
+git branch --merged | grep -v "\*" | grep -v $(git_extra_default_branch) | tr -d ' '

git_extras/git_summary

@@ -0,0 +1,243 @@
+#!/usr/bin/env bash
+#https://github.com/tj/git-extras/blob/master/bin/git-summary
+
+git_root() {
+  git rev-parse --show-toplevel
+}
+
+# get the relative path of current path according to root of repo
+git_root_relative() {
+    rel=$(git rev-parse --show-prefix)
+    if [ -z "$rel" ]; then
+        # git rev-parse --show-prefix will output empty string when we are in the root dir
+        echo "."
+    else
+        echo "$rel"
+    fi
+}
+
+git_root_cmd() {
+  if test $# -eq 0; then
+    git_root
+  else
+    case "$1" in
+      -r|--relative)
+        git_root_relative
+        ;;
+      *)
+        git_root
+        ;;
+    esac
+  fi
+}
+
+cd "$(git_root_cmd)" || { echo "Can't cd to top level directory";exit 1; }
+
+SUMMARY_BY_LINE=
+DEDUP_BY_EMAIL=
+MERGES_ARG=
+for arg in "$@"; do
+    case "$arg" in
+        --line)
+            SUMMARY_BY_LINE=1
+            ;;
+        --dedup-by-email)
+            DEDUP_BY_EMAIL=1
+            ;;
+        --no-merges)
+            MERGES_ARG="--no-merges"
+            ;;
+        -*)
+            >&2 echo "unknown argument $arg found"
+            exit 1
+            ;;
+        *)
+            # set the argument back
+            set -- "$@" "$arg"
+            ;;
+    esac
+
+    shift
+done
+
+if [ -n "$DEDUP_BY_EMAIL" ] && [ -n "$SUMMARY_BY_LINE" ]; then
+    >&2 echo "--dedup-by-email used with --line is not supported"
+    exit 1
+fi
+
+if [ -n "$MERGES_ARG" ] && [ -n "$SUMMARY_BY_LINE" ]; then
+    >&2 echo "--no-merges used with --line is not supported"
+    exit 1
+fi
+
+
+if [ -n "$SUMMARY_BY_LINE" ]; then
+  paths=( "$@" )
+else
+  commit="HEAD"
+  [ $# -ne 0 ] && commit=$*
+fi
+project=${PWD##*/}
+
+#
+# get date for the given <commit>
+#
+
+date() {
+  # the $1 can be empty
+  # shellcheck disable=SC2086
+  git log $MERGES_ARG --pretty='format: %ai' $1 | cut -d ' ' -f 2
+}
+
+#
+# get active days for the given <commit>
+#
+
+active_days() {
+  # shellcheck disable=SC2086
+  date $1 | sort -r | uniq | awk '
+    { sum += 1 }
+    END { print sum }
+  '
+}
+
+#
+# get the commit total
+#
+
+commit_count() {
+  # shellcheck disable=SC2086
+  git log $MERGES_ARG --oneline $commit | wc -l | tr -d ' '
+}
+
+#
+# total file count
+#
+
+file_count() {
+  git ls-files | wc -l | tr -d ' '
+}
+
+#
+# remove duplicate authors who belong to the same email address
+#
+
+dedup_by_email() {
+    # in:
+    # 27  luo zexuan <LuoZexuan@xxx.com>
+    #  7  罗泽轩 <luozexuan@xxx.com>
+    # out:
+    # 34 luo zexuan
+    LC_ALL=C awk '
+    {
+        sum += $1
+        last_field = tolower($NF)
+        if (last_field in emails) {
+            emails[last_field] += $1
+        } else {
+            email = last_field
+            emails[email] = $1
+            # set commits/email to empty
+            $1=$NF=""
+            sub(/^[[:space:]]+/, "", $0)
+            sub(/[[:space:]]+$/, "", $0)
+            name = $0
+            if (name in names) {
+                # when the same name is associated with existed email,
+                # merge the previous email into the later one.
+                emails[email] += emails[names[name]]
+                emails[names[name]] = 0
+            }
+            names[name] = email
+        }
+    }
+    END {
+        for (name in names) {
+            email = names[name]
+            printf "%6d\t%s\n", emails[email], name
+        }
+    }' | sort -rn -k 1
+}
+
+#
+# list authors
+#
+
+format_authors() {
+  # a rare unicode character is used as separator to avoid conflicting with
+  # author name. However, Linux column utility will escape tab if separator
+  # specified, so we do unesaping after it.
+  LC_ALL=C awk '
+  { args[NR] = $0; sum += $0 }
+  END {
+    for (i = 1; i <= NR; ++i) {
+      printf "%s♪%2.1f%%\n", args[i], 100 * args[i] / sum
+    }
+  }
+  ' | column -t -s♪ | sed "s/\\\x09/\t/g"
+}
+
+#
+# fetch repository age from oldest commit
+#
+
+repository_age() {
+  git log --reverse --pretty=oneline --format="%ar" | head -n 1 | LC_ALL=C sed 's/ago//'
+}
+
+#
+# list the last modified author for each line
+#
+single_file() {
+  while read -r data
+  do
+    if [[ $(file "$data") = *text* ]]; then
+      git blame --line-porcelain "$data" 2>/dev/null | grep "^author\ " | LC_ALL=C sed -n 's/^author //p';
+    fi
+  done
+}
+
+#
+# list the author for all file
+#
+lines() {
+  git ls-files -- "$@" | single_file
+}
+
+#
+# get the number of the lines
+#
+line_count() {
+  lines "$@" | wc -l
+}
+
+# summary
+
+echo
+echo " project  : $project"
+
+if [ -n "$SUMMARY_BY_LINE" ]; then
+  echo " lines    : $(line_count "${paths[@]}")"
+  echo " authors  :"
+  lines "${paths[@]}" | sort | uniq -c | sort -rn | format_authors
+else
+  echo " repo age : $(repository_age)"
+  # shellcheck disable=SC2086
+  echo " active   : $(active_days $commit) days"
+  # shellcheck disable=SC2086
+  echo " commits  : $(commit_count $commit)"
+
+  # The file count doesn't support passing a git ref so ignore it if a ref is given
+  if [ "$commit" == "HEAD" ]; then
+    echo " files    : $(file_count)"
+  fi
+  echo " authors  : "
+  if [ -n "$DEDUP_BY_EMAIL" ]; then
+    # the $commit can be empty
+    # shellcheck disable=SC2086
+    git shortlog $MERGES_ARG -n -s -e $commit | dedup_by_email | format_authors
+  else
+    # shellcheck disable=SC2086
+    git shortlog $MERGES_ARG -n -s $commit | format_authors
+  fi
+fi

git_extras/git_unmerged

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# https://github.com/tj/git-extras/blob/master/bin/git-show-unmerged-branches
+
+git_extra_default_branch() {
+    local extras_default_branch init_default_branch
+    extras_default_branch=$(git config --get git-extras.default-branch)
+    init_default_branch=$(git config --get init.defaultBranch)
+    if [ -n "$extras_default_branch" ]; then
+        echo "$extras_default_branch"
+    elif [ -n "$init_default_branch" ]; then
+        echo "$init_default_branch"
+    else
+        echo "main"
+    fi
+}
+
+git branch --no-merged | grep -v "\*" | grep -v $(git_extra_default_branch) | tr -d ' '

zsh/.zshrc

@@ -89,6 +89,11 @@ alias gdu='git add -N . && git diff'
 alias gsta='git add . && git stash'
 alias gunsta='git unstash && git reset .'
 
+## git-extras
+alias gsummary="/Users/$USER/.git_extras/git_summary"
+alias gmerged="/Users/$USER/.git_extras/git_merged"
+alias gunmerged="/Users/$USER/.git_extras/git_unmerged"
+
 ## gh
 alias ghh="gh pr create --fill"
 alias ghhd="gh pr create --fill -d"