* Use the `rm` command with `-P` as a shred fallback
The newer versions of OSX (Sierra) have neither `shred` nor `srm`.
They do have `rm` with the `-P` option, so we can fall back to that
before resorting to plain old `rm`.
* Add double-quotes and braces to the shell variable.
We should treat the variable as a string, and we should also be safe
when interpolating it.
* Requiring a file to be entered to finish editing
Running blackbox_edit_end without an argument doesn't currently print out a warning that no files are being changed. A developer in my team who was new to Blackbox committed a decrypted file (and made no changes to the GPG file) as they didn't realise the command hadn't worked.
The check I've added should help to avoid these errors.
* Adding argument check to start editing
Otherwise, somebody with neither shred nor srm installed could blithely
go on using Blackbox assuming that their working copies are getting
securely deleted.
If you install Git for Windows (https://git-for-windows.github.io/) you get a console
,either CMD or MINTT, which returns MINGW* for uname -s. So if you run blackbox_addadmin
or the other commands, you'll get: "ERROR: Unknown OS. Exiting."
I've simply added MINGW* to the Linux and CYGWIN checks and it seems to work fine.
NOTE: I didn't touch tools/test_functions.sh allthough it should probably be updated as well.
Use same naming scheme as elsewhere when creating tempfiles.
This fixes deregistering files, when seeing:
```
mktemp: too few X's in template ‘_stacklib_’
```
If a user has $EDITOR set to e.g "subl --wait", then "$EDITOR" (with
quotes) will fail with error "command not found: subl --wait". In other
words, it looks for an executable containing the space and the --wait in
it.
Simply removing the quotes seems to work fine.
This prevents the "mktemp: too few X's in template
_stacklib_" error message from appearing when
adding another admin to blackbox and allows the command to successfully
execute.
Related:
rtomayko/shocco#5http://unix.stackexchange.com/q/87638/63283
* Split out test helper functions into tools/test_functions.sh
* bin/_blackbox_common_test.sh: Unit-tests for functions.
* blackbox_postdeploy: Use cp_permissions instead of chmod --reference
