Monday, June 25, 2012

Bash script for pulling/fetching multiple git clones


In my current assignment, I'm acting as the main build guy for a number of projects that use git for source control.  As such, I find it very useful to keep all my git clones up to date whether I'm actively developing in them or not.  Additionally, I need to review the changes other developers are committing, so I'd like to get a summary of recent git activities.

Over time, I've put this little bash script together to help me with that.  I've included the script in this posting so I can remember later what/why I did this.  Disclaimer, I wrote this script and run this script in bash on Linux (not via git-bash in Windows).  Also, I'm using Zenity for some nice UI look/feel.

  1 #!/bin/bash
  2
  3 pushd ~/dev/repos > /dev/null
  4
  5 # The log file
  6 PULL_LOG="$(mktemp)"
  7
  8 # Get a list of all the clones in this directory.
  9 CLONES=$(find -maxdepth 2 -mindepth 2 -type d -name ".git" | sed -e 's|\./||' -e 's|/\.git||')
 10
 11 # Get a list of all the branches in clone/branch format
 12 ALL_BRANCHES=$(for clone in $CLONES; do cd $clone; for branch in $(git branch -l | sed 's/\s\|\*//g'); do echo $clone/$branch; done; cd ..; done)
 13
 14 # Count the branches
 15 BRANCH_COUNT=$(echo $ALL_BRANCHES | sed 's/ /\n/g' | wc -l)
 16
 17 # Start the log file
 18 echo "Pull log for $(date)" >> $PULL_LOG
 19 echo "--------------------------------------------------------------------------------" >> $PULL_LOG
 20
 21 # Function for pipping output to zenity progress dialog
 22 function pull_clones() {
 23     clone_counter=0
 24     for clone in $CLONES; do
 25         echo "Pulling branches for clone $clone" >> $PULL_LOG
 26         echo "--------------------------------------------------------------------------------" >> $PULL_LOG
 27         cd $clone
 28         echo "# Fetching changes for clone $clone"
 29         git fetch origin 2>> $PULL_LOG
 30         for branch in $(git branch -l | sed 's/\s\|\*//g'); do
 31             echo "# Merging branch $clone/$branch"
 32             echo "Merging branch $branch" >> $PULL_LOG
 33             git checkout $branch 2> /dev/null
 34             git merge origin/$branch >> $PULL_LOG
 35             echo | awk '{print count / total * 100}' count=$clone_counter total=$BRANCH_COUNT
 36             let clone_counter=clone_counter+1
 37         done
 38         cd ..
 39         echo >> $PULL_LOG
 40     done
 41 }
 42
 43 # Do it
 44 pull_clones | zenity --progress --title='Pulling development clones' --width=512
 45 zenity --text-info --filename=$PULL_LOG --title="Pull log" --width=500 --height=450
 46
 47 #Clean up
 48 rm $PULL_LOG
 49
 50 popd > /dev/null



No comments:

Post a Comment