Rust lib extracted from LNP/BP Core Lib repo

.gitignore

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+# Generated by Cargo
+# will have compiled files and executables
+/target
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+.idea
+
+*.swp
+
+/dep_test

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+Out code of conduct is not to have a code of conduct. Restriction is the word
+of sin: free people writing free code take their own decisions and act in a 
+way they like; taking all responsibility for the consequences.

LICENSE

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+MIT License
+
+Copyright (c) 2020-2021 LNP/BP Standards Association
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# LNP/BP Invoice Library
+
+Library providing functionality for doing universal invoices covering Bitcoin,
+Lightning Network and RGB (on-chain and LN) according to LNPBP-38 standard.
+Supports address-, UTXO-, channel-, miniscript-descriptor- and PSBT-based
+invoices with such features as:
+- Paying arbitrary amounts (donations etc)
+- Recurrent payments
+- Per-item prices with multiple item orders
+- Expiration dates
+- Currency exchange rate requirements
+- Extended information about merchants, invoice details etc
+- Optional merchant signatures
+
+Read more on this invoices in 
+[slides](https://github.com/LNP-BP/FAQ/blob/master/Presentation%20slides/Universal%20LNP-BP%20invoices.pdf) 
+or watch [YouTube recording](https://www.youtube.com/watch?v=R1QudCywRGk) of one
+of LNP/BP Association development calls discussing universal invoices.

codecov.yml

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+codecov:
+  require_ci_to_pass: no
+
+coverage:
+  precision: 1
+  round: nearest
+  range: "0...95"
+  # TODO: Update codecov default requirements after v1.0 release
+  status:
+    project:
+      default:
+        target: 0%
+        threshold: 1%
+    patch:
+      default:
+        target: 0%
+        threshold: 1%

rust/.rustfmt.toml

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+max_width = 80
+wrap_comments = true
+format_code_in_doc_comments = true