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Initial commit (craigwrong fork)
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‎.gitconfig/shared‎

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# Shared git configuration
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#
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# Include the shared config file:
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#
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# git config include.path ../.gitconfig/shared
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#
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# Create a user-specific config file:
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#
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# cp .gitconfig/user.example .gitconfig/user
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#
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# Decrypt a user config file:
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#
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# gpg --output .gitconfig/user --decrypt .gitconfig/users/[USER].gpg
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#
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# To encrypt a user config file:
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#
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# gpg --output .gitconfig/users/[USER].gpg --encrypt --recipient [USER] .gitconfig/user
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#
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[commit]
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gpgsign = true
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[include]
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path = user

‎.gitconfig/user.example‎

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# Example user-specific git configuration
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[user]
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signingkey = AB0C1D23E456FG7H
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name = Your Name
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email = [email protected]

‎.gitconfig/users/craigwrong.gpg‎

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‎.gitignore‎

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build-aux/test-driver
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src/stamp-h1
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libsecp256k1.pc
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.DS_Store
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/.gitconfig/user
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xcuserdata/
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/dist.docker
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/dist.macos.x86_64
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/dist.macos.arm64
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/dist.macos
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/*.xcframework
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/*.xcframework.zip
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/Package.swift

‎Dockerfile‎

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# syntax=docker/dockerfile:1
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FROM alpine as config
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COPY . /opt/secp256k1
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WORKDIR /opt/secp256k1
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RUN apk --update upgrade && apk add autoconf automake libtool
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RUN ./autogen.sh
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FROM alpine as build
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COPY --from=config /opt/secp256k1 /opt/secp256k1
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WORKDIR /opt/secp256k1
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RUN apk --update upgrade && apk add g++ make
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RUN ./configure --enable-experimental --enable-module-extrakeys --enable-module-schnorrsig --disable-module-recovery --disable-module-ecdh --enable-tests --disable-benchmark --disable-shared && make check && make install
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# Fetch, configure
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FROM alpine
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COPY --from=build /usr/local /usr/local

‎README.craigwrong.md‎

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# `secp256k1` Library - Craig S. Wrong's Fork
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I forked the original Bitcoin Core's library to add:
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- A `Dockerfile` with build procedures for various configurations.
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- A shell script to target macOS and package as XCFramework.
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This way the library can be used in Swift projects using Swift Package Manager (SPM) on both Mac and Linux platforms.
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PRs welcome. If you need to contact me just DM me at `twitter.com/notcraigwright`.

‎docker-build.sh‎

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#!/bin/sh
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set -e
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docker build -t secp256k1 .
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rm -rf dist.docker
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docker cp $(docker create --name=secp256k1 secp256k1):/usr/local ./dist.docker
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docker rm secp256k1

‎macos-xcframework-build.sh‎

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#!/bin/sh
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# Dependencies: autoconf automake zip
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set -e
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./autogen.sh
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# Optional MACOSX_DEPLOYMENT_TARGET=12.0
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./configure --prefix=$PWD/dist.macos.x86_64 \
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--enable-experimental --enable-tests --disable-benchmark --disable-shared \
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--enable-module-extrakeys --enable-module-schnorrsig \
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--disable-module-recovery --disable-module-ecdh \
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--host=x86_64-apple-darwin \
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CFLAGS="-O3 -arch x86_64 -fembed-bitcode -mmacosx-version-min=12.0"
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make check
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make install
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# Set the CPU architecture for ARM.
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make clean
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./configure --prefix=$PWD/dist.macos.arm64 \
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--enable-experimental --enable-tests --disable-benchmark --disable-shared \
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--enable-module-extrakeys --enable-module-schnorrsig \
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--disable-module-recovery --disable-module-ecdh \
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--host=arm64-apple-darwin \
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CFLAGS="-O3 -arch arm64 -fembed-bitcode -mmacosx-version-min=12.0"
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make install
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### Creating an XCFramework
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make clean
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rm -rf dist.macos
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mkdir dist.macos
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lipo dist.macos.x86_64/lib/libsecp256k1.a dist.macos.arm64/lib/libsecp256k1.a -create -output dist.macos/libsecp256k1.a
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xcodebuild -create-xcframework -library dist.macos/libsecp256k1.a -headers dist.macos.x86_64/include -output secp256k1.xcframework
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rm -rf dist.macos
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zip -Xr secp256k1.xcframework.zip secp256k1.xcframework
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touch Package.swift
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swift package compute-checksum secp256k1.xcframework.zip > secp256k1.xcframework.zip.checksum
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rm -rf Package.swift

‎project.xcworkspace/contents.xcworkspacedata‎

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‎project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>IDEDidComputeMac32BitWarning</key>
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<true/>
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</dict>
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</plist>

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