From 3eda5eef82bcf4b297d25edacb19625db326bd5d Mon Sep 17 00:00:00 2001
From: Peter Salomonsen <pjsalomonsen@gmail.com>
Date: Sun, 17 Dec 2023 13:33:33 +0000
Subject: [PATCH] wasi build

---
 .devcontainer/devcontainer.json |  2 +-
 .devcontainer/post-create.sh    | 20 +++++++++++++++++++-
 .gitignore                      |  2 +-
 setup.sh                        |  2 ++
 setup_wasi.sh                   |  6 ++++++
 wasibuild/.gitignore            | 11 +++++++++++
 wasibuild/build.sh              | 14 ++++++++++++++
 7 files changed, 54 insertions(+), 3 deletions(-)
 create mode 100755 setup_wasi.sh
 create mode 100644 wasibuild/.gitignore
 create mode 100755 wasibuild/build.sh

diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index cf7a923b..e04ec439 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -2,7 +2,7 @@
     "postCreateCommand": "/workspaces/wasm-git/.devcontainer/post-create.sh",
     "customizations": {
         "vscode": {
-            "extensions": []
+            "extensions": ["dtsvet.vscode-wasm","ms-vscode.cpptools-extension-pack"]
         }
     }
 }
diff --git a/.devcontainer/post-create.sh b/.devcontainer/post-create.sh
index 75d0166d..d1c9e047 100755
--- a/.devcontainer/post-create.sh
+++ b/.devcontainer/post-create.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-
+curl https://wasmtime.dev/install.sh -sSf | bash
 npm install
 sh setup.sh
 
@@ -9,3 +9,21 @@ git pull
 ./emsdk install latest
 ./emsdk activate latest
 cd ..
+
+sudo apt update
+sudo apt install -y clang-12
+sudo apt install -y lld-12
+sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-12 100
+sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-12 100
+
+sudo ln -s /usr/bin/wasm-ld-12 /usr/bin/wasm-ld
+
+cd wasibuild
+
+wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-20/wasi-sdk-20.0-linux.tar.gz
+tar -xvzf wasi-sdk-20.0-linux.tar.gz
+sudo cp -r wasi-sdk-20.0/lib/clang/16/lib/wasi /usr/lib/llvm-12/lib/clang/12.0.0/lib/
+
+cd ..
+
+curl https://wasmtime.dev/install.sh -sSf | bash
diff --git a/.gitignore b/.gitignore
index e268c01f..a07c52d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,4 +10,4 @@ package
 .idea
 emsdk
 nodefsclonetest
-google-chrome-stable_current_amd64.deb
\ No newline at end of file
+google-chrome-stable_current_amd64.deb
diff --git a/setup.sh b/setup.sh
index b538bb60..699037c1 100755
--- a/setup.sh
+++ b/setup.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 curl -L https://github.com/libgit2/libgit2/archive/refs/tags/v1.7.1.tar.gz --output libgit2.tar.gz
 tar -xzf libgit2.tar.gz
 mv libgit2-1.7.1 libgit2
diff --git a/setup_wasi.sh b/setup_wasi.sh
new file mode 100755
index 00000000..a384abc3
--- /dev/null
+++ b/setup_wasi.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+curl -L https://github.com/libgit2/libgit2/archive/refs/tags/v1.7.1.tar.gz --output libgit2.tar.gz
+tar -xzf libgit2.tar.gz
+mv libgit2-1.7.1 libgit2
+rm libgit2.tar.gz
diff --git a/wasibuild/.gitignore b/wasibuild/.gitignore
new file mode 100644
index 00000000..5f196863
--- /dev/null
+++ b/wasibuild/.gitignore
@@ -0,0 +1,11 @@
+CMake*
+src
+deps
+examples
+libgit2*
+include
+Makefile
+*.cmake
+*.a
+tests
+wasi-sdk*
diff --git a/wasibuild/build.sh b/wasibuild/build.sh
new file mode 100755
index 00000000..825acb6f
--- /dev/null
+++ b/wasibuild/build.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+BUILD_TYPE=Debug
+
+# Set build type to Release for release
+if [ "$1" == "Release" ]; then
+    BUILD_TYPE=Release
+    EXTRA_CMAKE_C_FLAGS="-Oz"
+fi
+
+cmake -D CMAKE_C_COMPILER=clang -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_C_FLAGS="--target=wasm32-wasi --sysroot=wasi-sdk-20.0/share/wasi-sysroot $EXTRA_CMAKE_C_FLAGS" -DREGEX_BACKEND=regcomp -DSONAME=OFF -DUSE_HTTPS=OpenSSL -DBUILD_SHARED_LIBS=OFF -DTHREADSAFE=OFF -DUSE_SSH=OFF -DBUILD_CLAR=OFF -DBUILD_EXAMPLES=ON ../libgit2
+make lg2 VERBOSE=1
+
+
+ cd /workspaces/wasm-git/wasibuild/src/util && /usr/bin/clang -DOPENSSL_API_COMPAT=0x10100000L -DSHA1DC_CUSTOM_INCLUDE_SHA1_C=\"git2_util.h\" -DSHA1DC_CUSTOM_INCLUDE_UBC_CHECK_C=\"git2_util.h\" -DSHA1DC_NO_STANDARD_INCLUDES=1 -I/workspaces/wasm-git/wasibuild/src/util -I/workspaces/wasm-git/wasibuild/include -I/workspaces/wasm-git/libgit2/src/util -I/workspaces/wasm-git/libgit2/include -I/workspaces/wasm-git/libgit2/deps/http-parser -I/workspaces/wasm-git/libgit2/deps/xdiff -I/workspaces/wasm-git/libgit2/deps/ntlmclient  -D_GNU_SOURCE -Wall -Wextra -Wdocumentation -Wno-documentation-deprecated-sync -Wno-missing-field-initializers -Wmissing-declarations -Wstrict-aliasing -Wstrict-prototypes -Wdeclaration-after-statement -Wshift-count-overflow -Wunused-const-variable -Wunused-function -Wint-conversion -Wc11-extensions -Wformat -Wformat-security -g -D_DEBUG -O0   -std=gnu90 -o CMakeFiles/util.dir/alloc.c.o   -c /workspaces/wasm-git/libgit2/src/util/alloc.c
\ No newline at end of file