[WIP] Regex replacements and source/no_hoist

[rrigdon]

[mingwandroid]

We often need to, after building a recipe but before packaging it, replace some strings in some (usually) generate files. On linux and macOS we often find the build prefix or the sysroot getting baked into files which causes problems because those folders are temporary. Instead, in general, we want to replace those with a token or an environment variable.

It is possible to add keys to your conda_build_config.yaml (variants stuff) called replacements/all_replacements which is a list of replacement instructions for conda-build to perform during its post build phase. Here is an example:

https://github.com/conda/conda-build/blob/496808082439fc4337e8f71b73d1ae83752b6910/tests/test-recipes/variants/31_variant_subkeys/conda_build_config.yaml#L1-L20

[mingwandroid]

regex_re is in PCRE2 format and is strictly as tight or tighter matching that regex_rg (rg==ripgrep). regex_rg is optional. If only regex_re is provided then it must be compatible with both PCRE2 and ripgrep regex formats. If your regex is not compatible with both then you must design a simpler, possibly looser one for regex_rg.

tag is informational, conda-build will print this out.

replacement_re is a PRCE2 regex and can contain references to groups mentioned in regex_re to allow more complex substitutions (example not given).

glob_patterns is a list of glob wildcards to consider for this prefix replacement.

[rrigdon]

This is waiting to be merged until future release of conda-build.

[github-actions[bot]]

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