commit-build-file-changes.sh

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#!/bin/bash

function show_error_msg()

  echo "*** ERROR *** $? line $1 $0 did not complete successfully!"

  echo "$ERROR_HELP"

ERROR_HELP=""

# Print an Error message if `set -eE` causes the script to exit due to a failed command

trap 'show_error_msg $LINENO' ERR

if [ "x$PROCESS_DIR" = "x" ]; then

  PROCESS_DIR=third_party/libwebrtc

  echo "Default directory: $PROCESS_DIR"

fi

# All commands should be printed as they are executed

# set -x

# After this point:

# * eE: All commands should succede.

# * u: All variables should be defined before use.

# * o pipefail: All stages of all pipes should succede.

set -eEuo pipefail

if [ ! -d $PROCESS_DIR ]; then

  echo "No directory found for '$PROCESS_DIR'"

  exit 1

fi

MOZ_BUILD_CHANGE_CNT=`hg status --include="**moz.build" $PROCESS_DIR | wc -l | tr -d " "`

echo "MOZ_BUILD_CHANGE_CNT: $MOZ_BUILD_CHANGE_CNT"

if [ "x$MOZ_BUILD_CHANGE_CNT" != "x0" ]; then

  CURRENT_COMMIT_SHA=`hg id -i | sed 's/+//'`

  COMMIT_DESC=`hg --config alias.log=log log -T '{desc|firstline}' -r $CURRENT_COMMIT_SHA`

  # since we have build file changes, touch the CLOBBER file

  cat CLOBBER | egrep "^#|^$" > CLOBBER.new

  mv CLOBBER.new CLOBBER

  echo "Modified build files in $PROCESS_DIR - $COMMIT_DESC" >> CLOBBER

  ADD_CNT=`hg status --include="**moz.build" -nu $PROCESS_DIR | wc -l | tr -d " "`

  DEL_CNT=`hg status --include="**moz.build" -nd $PROCESS_DIR | wc -l | tr -d " "`

  if [ "x$ADD_CNT" != "x0" ]; then

    hg status --include="**moz.build" -nu $PROCESS_DIR | xargs hg add

fi

  if [ "x$DEL_CNT" != "x0" ]; then

    hg status --include="**moz.build" -nd $PROCESS_DIR | xargs hg rm

fi

  hg commit -m \

    "$COMMIT_DESC - moz.build file updates" \

    --include="**moz.build" --include="CLOBBER" $PROCESS_DIR CLOBBER

fi

echo "Done in $0"