Migrating to Bash

2026-09-06 01:18:44 +00:00 · 2016-10-18 16:08:55 +03:00
parent 4d8c9050ad
commit 2f622e5c37
44 changed files with 5545 additions and 191 deletions
@@ -0,0 +1,125 @@
+#!/usr/bin/env bash
+# -*- coding: UTF-8 -*-
+# gitstatus.sh -- produce the current git repo status on STDOUT
+# Functionally equivalent to 'gitstatus.py', but written in bash (not python).
+#
+# Alan K. Stebbens <aks@stebbens.org> [http://github.com/aks]
+
+# helper functions
+count_lines() { echo "$1" | egrep -c "^$2" ; }
+all_lines() { echo "$1" | grep -v "^$" | wc -l ; }
+
+if [ -z "${__GIT_PROMPT_DIR}" ]; then
+  SOURCE="${BASH_SOURCE[0]}"
+  while [ -h "${SOURCE}" ]; do
+    DIR="$( cd -P "$( dirname "${SOURCE}" )" && pwd )"
+    SOURCE="$(readlink "${SOURCE}")"
+    [[ $SOURCE != /* ]] && SOURCE="${DIR}/${SOURCE}"
+  done
+  __GIT_PROMPT_DIR="$( cd -P "$( dirname "${SOURCE}" )" && pwd )"
+fi
+
+gitsym=$( git symbolic-ref HEAD 2>/dev/null )
+
+#If exit status OK, we have a branch
+if [[ $? == 0 ]]; then
+  # the current branch is the tail end of the symbolic reference
+  branch="${gitsym##refs/heads/}"    # get the basename after "refs/heads/"
+fi
+
+gitstatus=$( git diff --name-status 2>&1 )
+
+# if the diff is fatal, exit now
+if [[ $? != 0 ]]; then exit 0; fi
+
+staged_files=$( git diff --staged --name-status )
+
+num_changed=$(( $( all_lines "$gitstatus" ) - $( count_lines "$gitstatus" U ) ))
+num_conflicts=$( count_lines "$staged_files" U )
+num_staged=$(( $( all_lines "$staged_files" ) - num_conflicts ))
+num_untracked=$( git ls-files --others --exclude-standard $(git rev-parse --show-cdup) | wc -l )
+
+num_stashed=0
+if [[ "$__GIT_PROMPT_IGNORE_STASH" != "1" ]]; then
+  stash_file="$( git rev-parse --git-dir )/logs/refs/stash"
+  if [[ -e "${stash_file}" ]]; then
+    while IFS='' read -r wcline || [[ -n "$wcline" ]]; do
+      ((num_stashed++))
+    done < ${stash_file}
+  fi
+fi
+
+clean=0
+if (( num_changed == 0 && num_staged == 0 && num_untracked == 0 && num_stashed == 0 && num_conflicts == 0 )) ; then
+  clean=1
+fi
+
+remote=
+upstream=
+
+if [[ -z "$branch" ]]; then
+  tag=$( git describe --tags --exact-match 2>/dev/null )
+  if [[ -n "$tag" ]]; then
+    branch="$tag"
+  else
+    branch="_PREHASH_$( git rev-parse --short HEAD )"
+  fi
+else
+  remote_name=$( git config branch.${branch}.remote )
+
+  if [[ -n "$remote_name" ]]; then
+    merge_name=$( git config branch.${branch}.merge )
+  else
+    remote_name='origin'
+    merge_name="refs/heads/${branch}"
+  fi
+
+  if [[ "$remote_name" == '.' ]]; then
+    remote_ref="$merge_name"
+  else
+    remote_ref="refs/remotes/$remote_name/${merge_name##refs/heads/}"
+  fi
+
+  # detect if the local branch have a remote tracking branch
+  upstream=$( git rev-parse --abbrev-ref ${branch}@{upstream} 2>&1 )
+
+  if [[ $? == 0 ]]; then
+     # get the revision list, and count the leading "<" and ">"
+    revgit=$( git rev-list --left-right ${remote_ref}...HEAD 2>/dev/null )
+    if [[ $? == 0 ]]; then
+      num_revs=$( all_lines "$revgit" )
+      num_ahead=$( count_lines "$revgit" "^>" )
+      num_behind=$(( num_revs - num_ahead ))
+      if (( num_behind > 0 )) ; then
+        remote="${remote}_BEHIND_${num_behind}"
+      fi
+      if (( num_ahead > 0 )) ; then
+        remote="${remote}_AHEAD_${num_ahead}"
+      fi
+    fi
+  else
+    remote='_NO_REMOTE_TRACKING_'
+    unset upstream
+  fi
+fi
+
+if [[ -z "$remote" ]] ; then
+  remote='.'
+fi
+
+if [[ -z "$upstream" ]] ; then
+  upstream='^'
+fi
+
+printf "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n" \
+  "$branch" \
+  "$remote" \
+  "$upstream" \
+  $num_staged \
+  $num_conflicts \
+  $num_changed \
+  $num_untracked \
+  $num_stashed \
+  $clean
+
+exit