Re^4: 'open for read' fails as "no such file or directory" but file is there

G'day Alex,

Hand-crafting your own die messages can provide a lot more information than that provided by autodie. In some cases, using die instead of autodie is entirely appropriate. However,

... or die "Unable to open $filename for read: $!";
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provides no more information than

$ perl -e 'use autodie; open $fh, "<", "not_a_file"'
Can't open 'not_a_file' for reading: 'No such file or directory' at -e
+ line 1
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See my reply to the OP for more on this.

— Ken

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Re^5: 'open for read' fails as "no such file or directory" but file is there by talexb (Chancellor) on Nov 02, 2016 at 21:09 UTC
Absolutely right. My current preference to hand-rolled exceptions is based on my current environment, one that I'm reluctant to modify (it's git-bash running on an Azure cloud). However, I did just check, and autodie is present in this installation (5.22.0), so I will try it the next time I build a script. Mostly, what also contributes to me attitude about error-checking is my background as a C programmer -- my experience has taught me to be pessimistic, and check for errors just about everywhere. :) Alex / talexb / Toronto Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.	[reply]

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Re^5: 'open for read' fails as "no such file or directory" but file is there
by talexb (Chancellor) on Nov 02, 2016 at 21:09 UTC

Absolutely right. My current preference to hand-rolled exceptions is based on my current environment, one that I'm reluctant to modify (it's git-bash running on an Azure cloud). However, I did just check, and autodie is present in this installation (5.22.0), so I will try it the next time I build a script.

Mostly, what also contributes to me attitude about error-checking is my background as a C programmer -- my experience has taught me to be pessimistic, and check for errors just about everywhere. :)

Alex / talexb / Toronto

Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.

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