refactor: Helper function _replace_by_env_in_file()#3526
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polarathene wants to merge 3 commits intodocker-mailserver:masterfrom
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refactor: Helper function _replace_by_env_in_file()#3526polarathene wants to merge 3 commits intodocker-mailserver:masterfrom
_replace_by_env_in_file()#3526polarathene wants to merge 3 commits intodocker-mailserver:masterfrom
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Minor change to add support for usage with `saslauthd.conf` which differs with `:` for it's key/value delimiter. Also adopts the`_escape_for_sed()` method, instead of the inline sed pattern (_which for some reason escaped `=` but not `(` + `)`, thus buggy if ever matching on input with those tokens_). `_escape_for_sed()` likewise wasn't escaping for `(` + `)` or even `|`, which are required for proper escape support if using `sed -E` / `sed -r` with this method. Additionally added escaping support for `&` replacement segment token, which seems valid. Increased verbosity to better grok pattern matching expression, clarified escaping concern with `sed` delimiter since the project is not consistent there.
No need to check for a non-empty value to prepend a space (_since an empty value is used via sed anyway?_). Can also be a bit DRY with the sed pattern, matching the key + delimiter (_and all white-space before/after the delimiter until the value_), then capture that for the replacement left-side value while only actually swapping the value for the ENV input value. Should be an improvement, unless there is a scenario that would differ between `` and ` ` as valid value assignments?
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georglauterbach
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Sep 5, 2023
georglauterbach
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casperklein
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Sep 9, 2023
Both should be improvements for usage Co-authored-by: Casper <[email protected]>
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This is marked for v14.0.0. Will it be addresses for v14.0.0, or should we immediately postpone to v14.1.0? |
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Same response to the related LDAP PR, that PR needs to be merged before this one can be. |
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Description
Some refactoring improvements and fixes to the escaping support:
_replace_by_env_in_file():saslauthd.confwhich differs with:for it's key/value delimiter._escape_for_sed()helper function, instead of the inline sed pattern (which for some reason escaped a=? but not actual regex tokens(+), thus buggy if ever matching on input with those tokens).sedexpression, no need to prepend white-space, and we can additionally preserve the white-space between key and value of the source input while being more DRY._escape_for_sed():(+)(or even|), which is required for proper escaping support when usingsed -E/sed -rwith this helper function. It does now.&replacement segment token, which seems ok to escape in the regexp segment too (even though it has no meaning there). Increased verbosity to better grok pattern matching expression (easier when broken down, vs all in a single line), clarified an escaping concern with thesedsegment delimiter (since the project is not consistent there).NOTE: Tests will fail, this PR can be rebased upon #3524 which for the
mail_with_ldap.batstest at least should pass then, other tests can be updated here after that.Type of change
Checklist: