Add support for --pause to process_crashes.sh

This makes it possible to adjust a crash report for testing a specific
processing scenario.

bin/process_crashes.sh

@@ -9,17 +9,23 @@
 #
 # Usage: ./bin/process_crashes.sh
 #
+# This should be run inside the app container.
+#
 # You can use it with fetch_crashids. For example:
 #
 #     socorro-cmd fetch_crashids --num=1 | ./bin/process_crashes.sh
 #
-# Make sure to run the processor to do the actual processing.
+# You can pause after fetching crash ids and before uploading them to the cloud
+# storage bucket. This lets you adjust the crash reports.
+#
+#     ./bin/process_crashes.sh --pause afd59adc-1cfd-4aa3-af2f-6b9ed0241029
 #
-# Note: This should be called from inside a container.
+# Make sure to run the processor to do the actual processing.
 
 set -euo pipefail
 
 DATADIR=./crashdata_tryit_tmp
+PAUSE=0
 
 function cleanup {
     # Cleans up files generated by the script
@@ -29,10 +35,24 @@ function cleanup {
 # Set up cleanup function to run on script exit
 trap cleanup EXIT
 
+# If there's at least one argument, check for options
+if [[ $# -ne 0 ]]; then
+    if [[ $1 == "--pause" ]]; then
+        PAUSE=1
+        shift
+    fi
+fi
+
+# Check for crash ids
 if [[ $# -eq 0 ]]; then
     if [ -t 0 ]; then
         # If stdin is a terminal, then there's no input
-        echo "Usage: process_crashes.sh CRASHID [CRASHID ...]"
+        echo "Usage: process_crashes.sh [--pause] CRASHID [CRASHID ...]"
+        exit 1
+    fi
+
+    if [[ "${PAUSE}" == "1" ]]; then
+        echo "Can't use PAUSE and process crash ids from stdin. Exiting."
         exit 1
     fi
 
@@ -45,6 +65,11 @@ mkdir "${DATADIR}" || echo "${DATADIR} already exists."
 # Pull down the data for all crashes
 ./socorro-cmd fetch_crash_data "${DATADIR}" $@
 
+# Pause (if requested) to let user make changes to crash data
+if [[ "${PAUSE}" == "1" ]]; then
+    read  -r -n 1 -p "Pausing... Any key to continue." pauseinput
+fi
+
 # Make the bucket and sync contents
 ./socorro-cmd gcs create "${CRASHSTORAGE_GCS_BUCKET}"
 ./socorro-cmd gcs upload "${DATADIR}" "${CRASHSTORAGE_GCS_BUCKET}"