From 0abd26763c439dc36f399e6f0ad48e78addd2ac7 Mon Sep 17 00:00:00 2001
From: "R. Steve McKown" <rsmckown@gmail.com>
Date: Wed, 16 Dec 2009 16:27:39 -0700
Subject: [PATCH] git-overview walks a subtree commenting on git repos
 contained within.

---
 git-overview | 145 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100755 git-overview

diff --git a/git-overview b/git-overview
new file mode 100755
index 0000000..7012705
--- /dev/null
+++ b/git-overview
@@ -0,0 +1,145 @@
+#!/bin/bash
+# git-overview
+#
+# Review a filesystem subtree for git repos and show their overall state.
+# Runs on the current directory if no argument is provided
+
+usage()
+{
+  [ -n "$1" ] && echo "$1" >&2
+  echo "usage: $0 [directory]" >&2
+  exit 1
+}
+
+# __gitdir accepts 0 or 1 arguments (i.e., location)
+# returns location of .git repo
+__gitdir ()
+{
+	if [ -z "${1-}" ]; then
+		if [ -n "${__git_dir-}" ]; then
+			echo "$__git_dir"
+		elif [ -d .git ]; then
+			echo .git
+		else
+			git rev-parse --git-dir 2>/dev/null
+		fi
+	elif [ -d "$1/.git" ]; then
+		echo "$1/.git"
+	else
+		echo "$1"
+	fi
+}
+
+# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
+# returns text to add to bash PS1 prompt (includes branch name)
+__git_ps1 ()
+{
+	local g="$(__gitdir)"
+	if [ -n "$g" ]; then
+		local r
+		local b
+		if [ -f "$g/rebase-merge/interactive" ]; then
+			r="|REBASE-i"
+			b="$(cat "$g/rebase-merge/head-name")"
+		elif [ -d "$g/rebase-merge" ]; then
+			r="|REBASE-m"
+			b="$(cat "$g/rebase-merge/head-name")"
+		else
+			if [ -d "$g/rebase-apply" ]; then
+				if [ -f "$g/rebase-apply/rebasing" ]; then
+					r="|REBASE"
+				elif [ -f "$g/rebase-apply/applying" ]; then
+					r="|AM"
+				else
+					r="|AM/REBASE"
+				fi
+			elif [ -f "$g/MERGE_HEAD" ]; then
+				r="|MERGING"
+			elif [ -f "$g/BISECT_LOG" ]; then
+				r="|BISECTING"
+			fi
+
+			b="$(git symbolic-ref HEAD 2>/dev/null)" || {
+
+				b="$(
+				case "${GIT_PS1_DESCRIBE_STYLE-}" in
+				(contains)
+					git describe --contains HEAD ;;
+				(branch)
+					git describe --contains --all HEAD ;;
+				(describe)
+					git describe HEAD ;;
+				(* | default)
+					git describe --exact-match HEAD ;;
+				esac 2>/dev/null)" ||
+
+				b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
+				b="unknown"
+				b="($b)"
+			}
+		fi
+
+		local w
+		local i
+		local s
+		local u
+		local c
+
+		if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
+			if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
+				c="BARE:"
+			else
+				b="GIT_DIR!"
+			fi
+		elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
+			if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
+				if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
+					git diff --no-ext-diff --ignore-submodules \
+						--quiet --exit-code || w="*"
+					if git rev-parse --quiet --verify HEAD >/dev/null; then
+						git diff-index --cached --quiet \
+							--ignore-submodules HEAD -- || i="+"
+					else
+						i="#"
+					fi
+				fi
+			fi
+			if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
+			        git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
+			fi
+
+			if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then
+			   if [ -n "$(git ls-files --others --exclude-standard)" ]; then
+			      u="%"
+			   fi
+			fi
+		fi
+
+		if [ -n "${1-}" ]; then
+			printf "$1" "$c${b##refs/heads/}$w$i$s$u$r"
+		else
+			printf " (%s)" "$c${b##refs/heads/}$w$i$s$u$r"
+		fi
+	fi
+}
+
+# MAIN
+
+if [ $# -eq 1 ]; then
+    cd "$1" || usage "Bad directory"
+fi
+
+(
+for path in $(find . -maxdepth 3 -name .git -type d); do
+    repo="${path/\/.git}"
+    (
+	cd $repo
+	echo $repo: $(__git_ps1)
+	for remote in $(git remote show); do
+	    echo "    $remote:"
+	    git remote show $remote | grep "pushes to"
+	done
+	echo
+    )
+done
+) 2>&1
-- 
2.39.2