Determine if emacs or emacsclient was run with filename(s) as commandline argument.

[Constantin Kulikov]

Is there a way to know if emacs was run with filename argument?
Example:
emacsclinet -c "/some/path/some_file"
It'l create new emacs frame and open 'some_file'. Can I somehow determine
or detect opening files from commandline?
I tried setting up `before-make-frame-hook', `after-make-frame-functions'
and `find-file-hook' and I discovered that find-file-hook is last hook that
executed so I can't differentiate 'command line file opening' from regular
user action.
Why I need it:
I wrote some elisp code that saves window configuration on frame
destruction and restores it on new frame creation. emacsclient -c is set as
my $EDITOR. I need some way to detect case when some program calls the
$EDITOR with file name as argument because in that case I don't need to
restore window configuration.

[Bernardo]

> Is there a way to know if emacs was run with filename argument?

command-line-args?

,----
| command-line-args is a variable defined in `C source code'.
| Its value is ("~/EmacsTrunk/src/emacs")
|
| Documentation:
| Args passed by shell to Emacs, as a list of strings.
| Many arguments are deleted from the list as they are processed.
`----

[Constantin Kulikov]

Looks like it's always `("emacs")' for emacsclient -c file, or it's
processed and set to that value before any of hooks that I can set.
I discovered that before-make-frame-hook and after-make-frame-functions is
triggered before the find-file-hook, but command-line-args is `("emacs")'
in each of this hooks.

[Constantin Kulikov]

found server-visit-hook, will try use it