In-place substitution in files

[sanmai-NL]

I would like to have this feature in order to simplify logic in shell scripts executing sigil. Are you considering this?

[progrium]

Can you give a few examples of what you mean by this?

On Sun, Sep 25, 2016 at 3:36 AM, Sander Maijers [email protected]
wrote:

I would like to have this feature in order to simplify logic in shell
scripts executing sigil. Are you considering this?

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Jeff Lindsay
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[sanmai-NL]

For example, when I wish to template a config file, I may not want to require both a template of the config file and a rendered config file at a different path. In that case I may want to substitute in-place, within one file (similar to sed -i). Redirecting output to the input (template) file truncates it.

[Moulde]

This is what i'm experiencing as well.

cat src/environments/environment.prod.ts | sigil -p VERSION=tag
The above command replaces the version field in the file content, and prints the correct output to console. But if i try to output it to the same file, like so.

cat src/environments/environment.prod.ts | sigil -p VERSION=tag > src/environments/environment.prod.ts

The file is empty. This seems like it should be possible?

EDIT: This seems like it's not a sigil issue, but a bash issue instead.
https://stackoverflow.com/questions/6696842/bash-redirect-input-from-file-back-into-same-file
I hacked around this by making sigil output to tmp file, then mv the tempfile to the path of the original file.

[YarekTyshchenko]

This would be very useful. Would you accept a PR for this?

[josegonzalez]

Yes we would.