Stop depending on OpenSSL on linux

.travis.yml

@@ -12,37 +12,17 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
-      env: RID=ubuntu.18.04-x64
+      env: RID=linux-musl-x64
     - os: linux
       dist: trusty
       sudo: required
-      env: RID=rhel-x64
+      env: RID=linux-arm64
     - os: linux
       dist: trusty
       sudo: required
-      env: RID=fedora-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=debian.9-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=alpine-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=alpine.3.9-x64
+      env: RID=linux-arm
     - os: osx
       env: RID=osx
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=ubuntu.16.04-arm64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=debian-arm64
 
 branches:
  only:

CMakeLists.arm.txt

@@ -0,0 +1,6 @@
+SET(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR arm)
+set(TARGET_ABI "linux-gnueabihf")
+
+SET(CMAKE_C_COMPILER   ${CMAKE_SYSTEM_PROCESSOR}-${TARGET_ABI}-gcc)
+SET(CMAKE_CXX_COMPILER ${CMAKE_SYSTEM_PROCESSOR}-${TARGET_ABI}-g++)

Dockerfile.debian.9-x64 → Dockerfile.linux-arm

@@ -2,6 +2,8 @@ FROM debian:9
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-RUN apt update && apt -y install cmake gcc libssl-dev pkg-config
+RUN dpkg --add-architecture armhf
+
+RUN apt update && apt -y install cmake pkg-config crossbuild-essential-armhf
 
 CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

Dockerfile.debian-arm64 → Dockerfile.linux-arm64

@@ -4,9 +4,6 @@ COPY . /nativebinaries/
 
 RUN dpkg --add-architecture arm64
 
-RUN apt update \
-&& apt -y install cmake pkg-config \
-   crossbuild-essential-arm64 \
-   libssl-dev:arm64
+RUN apt update && apt -y install cmake pkg-config crossbuild-essential-arm64
 
 CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

Dockerfile.alpine-x64 → Dockerfile.linux-musl-x64

@@ -2,6 +2,6 @@ FROM alpine:3.7
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-RUN apk add --no-cache bash build-base cmake openssl-dev
+RUN apk add --no-cache bash build-base cmake
 
 CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

Dockerfile.linux-x64

@@ -2,7 +2,7 @@ FROM ubuntu:14.04
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-RUN apt update && apt -y install libssl-dev pkg-config curl make gcc build-essential
+RUN apt update && apt -y install pkg-config curl make gcc build-essential
 
 RUN curl -L https://github.com/Kitware/CMake/releases/download/v3.15.4/cmake-3.15.4-Linux-x86_64.sh -o /tmp/cmake.sh && bash /tmp/cmake.sh --skip-license --prefix=/usr/local
 

build.libgit2.sh

@@ -4,13 +4,26 @@ set -e
 
 LIBGIT2SHA=`cat ./nuget.package/libgit2/libgit2_hash.txt`
 SHORTSHA=${LIBGIT2SHA:0:7}
+OS=`uname`
+ARCH=`uname -m`
+PACKAGEPATH="nuget.package/runtimes"
+
+if [[ $OS == "Darwin" ]]; then
+	USEHTTPS="ON"
+else
+	USEHTTPS="OFF"
+fi
 
 rm -rf libgit2/build
 mkdir libgit2/build
 pushd libgit2/build
 
 export _BINPATH=`pwd`
 
+if [[ $RID == *arm ]]; then
+	export TOOLCHAIN_FILE=/nativebinaries/CMakeLists.arm.txt
+fi
+
 if [[ $RID == *arm64 ]]; then
 	export TOOLCHAIN_FILE=/nativebinaries/CMakeLists.arm64.txt
 fi
@@ -21,18 +34,14 @@ cmake -DCMAKE_BUILD_TYPE:STRING=Release \
       -DENABLE_TRACE=ON \
       -DLIBGIT2_FILENAME=git2-$SHORTSHA \
       -DCMAKE_OSX_ARCHITECTURES="i386;x86_64" \
+      -DUSE_HTTPS=$USEHTTPS \
       -DUSE_BUNDLED_ZLIB=ON \
       -DCMAKE_TOOLCHAIN_FILE=${TOOLCHAIN_FILE} \
       ..
 cmake --build .
 
 popd
 
-OS=`uname`
-ARCH=`uname -m`
-
-PACKAGEPATH="nuget.package/runtimes"
-
 if [[ $RID == "" ]]; then
 	if [[ $ARCH == "x86_64" ]]; then
 		RID="unix-x64"