2e7032420f
This PR was merged into the 4.4 branch.
Discussion
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[Process] change the syntax of portable command lines
| Q | A
| ------------- | ---
| Branch? | 4.4
| Bug fix? | yes
| New feature? | no
| Deprecations? | no
| Tickets | Fix #34838
| License | MIT
| Doc PR | https://github.com/symfony/symfony-docs/pull/12772
An alternative to #34845
Right now, portable command lines use `"$FOO"` for placeholders.
But because we validate that a corresponding variable exists before running the command, this fails with `Command line is missing a value for key "$FOO"` when `FOO` is not defined.
This PR proposes to use `"${:FOO}"` instead. The difference with the previous syntax is that this cannot collide with existing shell scripts as it is invalid for them.
When this is merged, we'll have to update https://symfony.com/blog/new-in-symfony-4-1-prepared-commands too.
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