[Gnu-arch-users] Re: from a file's point of view

[Samuel Tardieu]

On 22/09, Miles Bader wrote:

| Samuel Tardieu <address@hidden> writes:
| > it uses "xargs -r".  Couldn't you use an alternate more portable
| > construction? (I mean without "-r")
| 
| Such as ...?

A combination of "test -n" and "xargs". This is less elegant, but more
portable. Example:

--- orig/tla-file-log.shpp
+++ mod/tla-file-log.shpp
@@ -23,7 +23,12 @@
 FILE="$1"
 
 # Remember all patch logs we have
-set -- `$TLA logs | xargs -r $TLA log-ls -f -r`
+logs=`$TLA logs`
+if test -n "$logs"; then
+  set -- `$TLA log-ls -f -r $logs`
+else
+  set
+fi

This could even be abstracted in a function.

  Sam