Mail Archives: cygwin/2003/11/18/20:17:14
Igor,
With this change I discovered a very subtle problem - the files listed will
show two entries instead of one for the README:
/usr/share/doc/Cygwin/%PKG%.README
/usr/share/doc/Cygwin/%PKG%.README.tmp
This is due to the way where I redirected the file to.
There are two solutions:
1/ Put the redirected temp file under /tmp, i.e., /tmp/%PKG%.README and then
doing a 'mv -f /tmp/%PKG%.README /usr/share/doc/Cygwin/%PKG%.README'. The
listing won't be affected since before and after will contain the same file
name.
2/ Adjusting the find command to filter-out the
/usr/share/doc/Cygwin/%PKG%.README.tmp file in its listing.
Which solution would be your preference? (Unless you have another one of
course ...)
Alan
-----Original Message-----
From: Alan Miles [mailto:miles0201 AT cox DOT net]
Sent: November 18, 2003 19:05
To: cygwin AT cygwin DOT com
Subject: RE: Diff for generic readme and generic-build script
Igor,
Fixed the script patch as per your comment about -i. The `e [COMMAND]' is
still valid, as replacing it with 'r -' did not work.
Alan
-----Original Message-----
From: Igor Pechtchanski [mailto:pechtcha AT cs DOT nyu DOT edu]
Sent: November 18, 2003 13:02
To: alan DOT miles AT ieee DOT org
Cc: cygwin AT cygwin DOT com
Subject: Re: Diff for generic readme and generic-build script
On Mon, 17 Nov 2003, Alan Miles wrote:
> [snip]
> 7/ Note: the -i option to sed (quoting the man page for sed):
>
> -i[suffix], --in-place[=suffix]
> edit files in place (makes backup if extension supplied)
>
> Extended sed command:
>
> `e [COMMAND]'
> This command allows one to pipe input from a shell command into
> pattern space. Without parameters, the `e' command executes the
> command that is found in pattern space and replaces the pattern
> space with the output; a trailing new-line is suppressed.
>
> If a parameter is specified, instead, the `e' command interprets
> it as a command and sends it to the output stream (like `r' does).
> The command can run across multiple lines, all but the last
> ending with a back-slash.
>
> In both cases, the results are undefined if the command to be
> executed contains a NUL character.
>
> These together constitute the operation of the modifications.
Note: the -i option to sed is buggy, as it will go into an infinite loop
if /tmp is not writable (which does happen occasionally with Cygwin).
It's better to use explicit redirection and renaming instead.
Igor
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