github.com/spg/deis@v1.7.3/builder/rootfs/etc/confd/templates/gitreceive (about)

     1  #!/bin/bash
     2  set -eo pipefail
     3  
     4  # Places cursor at start of line, so that subsequent text replaces existing text. For example;
     5  # "remote: Updated branch 'master' of 'repo'. Deploying to dev." becomes
     6  # "Updated branch 'master' of 'repo'. Deploying to dev."
     7  strip_remote_prefix() {
     8      stdbuf -i0 -o0 -e0 sed "s/^/"$'\e[1G'"/"
     9  }
    10  
    11  GITUSER=${GITUSER:-git}
    12  GITHOME="/home/$GITUSER"
    13  SELF=`which $0`
    14  
    15  case "$1" in
    16  
    17  # called by sshd on each `git push`
    18    run)
    19      export RECEIVE_USER=$2
    20      export RECEIVE_FINGERPRINT=$3
    21      # ssh provides the original requested command in $SSH_ORIGINAL_COMMAND
    22      SSH_ORIGINAL_COMMAND="$(echo $SSH_ORIGINAL_COMMAND | sed 's/\///g' )" # remove any '/'s
    23      export RECEIVE_REPO="$(echo $SSH_ORIGINAL_COMMAND | awk '{print $2}' | sed -e 's/'\''//g')"
    24      REPO_PATH="$GITHOME/$RECEIVE_REPO"
    25      if [ ! -d $REPO_PATH ]; then
    26        mkdir -p $REPO_PATH
    27        cd $REPO_PATH
    28        git init --bare > /dev/null
    29      fi
    30      cd $GITHOME
    31      PRERECEIVE_HOOK="$REPO_PATH/hooks/pre-receive"
    32      # inject a pre-receive hook
    33      cat > $PRERECEIVE_HOOK <<EOF
    34  #!/bin/bash
    35  cat | $SELF pre-receive
    36  EOF
    37      chmod +x $PRERECEIVE_HOOK
    38      # call the original git-shell
    39      git-shell -c "$SSH_ORIGINAL_COMMAND"
    40      ;;
    41  
    42    pre-receive)
    43      while read oldrev newrev refname
    44      do
    45        LOCKFILE="/tmp/$RECEIVE_REPO.lock"
    46        if ( set -o noclobber; echo "$$" > "$LOCKFILE" ) 2> /dev/null; then
    47          trap 'rm -f "$LOCKFILE"; exit 1' INT TERM EXIT
    48  
    49          # check for authorization on this repo
    50          $GITHOME/receiver "$RECEIVE_REPO" "$newrev" "$RECEIVE_USER" "$RECEIVE_FINGERPRINT"
    51          rc=$?
    52          if [[ $rc != 0 ]] ; then
    53            echo "      ERROR: failed on rev $newrev - push denied"
    54            exit $rc
    55          fi
    56          # builder assumes that we are running this script from $GITHOME
    57          cd $GITHOME
    58          # if we're processing a receive-pack on an existing repo, run a build
    59          if [[ $SSH_ORIGINAL_COMMAND == git-receive-pack* ]]; then
    60            $GITHOME/builder $RECEIVE_USER $RECEIVE_REPO $newrev 2>&1 | strip_remote_prefix
    61          fi
    62  
    63          rm -f "$LOCKFILE"
    64          trap - INT TERM EXIT
    65        else
    66          echo "Another git push is ongoing. Aborting..."
    67          exit 1
    68        fi
    69      done
    70      ;;
    71  
    72    *)
    73      echo "Usage: gitreceive <command> [options]"
    74      ;;
    75  esac