Remove ".sh" from file names.

Refactor so it does not rely on PWD being the repo basedir.
Fix assumptions about HG and GIT use.

bin/blackbox_update_all_files

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+#
+# blackbox_edit_end.sh -- Re-encrypt file after edits.
+#
+
+. _blackbox_common.sh
+
+if [[ -z $GPG_AGENT_INFO ]]; then
+  echo 'WARNING: You probably want to run gpg-agent as'
+  echo 'you will be asked for your passphrase many times.'
+  echo 'Example: $ eval $(gpg-agent --daemon)'
+  read -p 'Press CTRL-C now to stop. ENTER to continue: '
+fi
+
+disclose_admins
+
+echo '========== ENCRYPTED FILES TO BE RE-ENCRYPTED:'
+awk <"$BB_FILES" '{ print "    " $1 ".gpg" }'
+
+echo '========== FILES IN THE WAY:'
+need_warning=false
+for i in $(<$BB_FILES) ; do
+  unencrypted_file=$(get_unencrypted_filename "$i")
+  encrypted_file=$(get_encrypted_filename "$i")
+  if [[ -f "$unencrypted_file" ]]; then
+    need_warning=true
+    echo "    $unencrypted_file"
+  fi
+done
+if $need_warning ; then
+  echo
+  echo 'WARNING: This will overwrite any unencrypted files laying about.'
+  read -p 'Press CTRL-C now to stop. ENTER to continue: '
+else
+  echo 'All OK.'
+fi
+
+echo '========== RE-ENCRYPTING FILES:'
+for i in $(<$BB_FILES) ; do
+  unencrypted_file=$(get_unencrypted_filename "$i")
+  encrypted_file=$(get_encrypted_filename "$i")
+  echo ========== PROCESSING "$unencrypted_file"
+  fail_if_not_on_cryptlist "$unencrypted_file"
+  decrypt_file_overwrite "$encrypted_file" "$unencrypted_file"
+  encrypt_file "$unencrypted_file" "$encrypted_file"
+  shred_file "$unencrypted_file"
+done
+
+fail_if_keychain_has_secrets
+
+echo '========== COMMITING TO HG:'
+VCSCMD=$(which_vcs)
+$VCSCMD commit -m'Re-encrypted keys' $(awk <$BB_FILES '{ print $1 ".gpg" }' )
+# NOTE(tlim): Because we use $VCSCMD as a command, we can only use commands
+# that work for both git and hg. That's pretty lazy. We should add
+# a function to _blackbox_common.sh that commits a file.
+
+echo '========== DONE.'
+echo 'Likely next step:'
+echo "    ${VCSCMD} push"