CI and formatting

.clang-format

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+---
+BasedOnStyle: Google
+IndentWidth: 4
+---
+Language: Cpp
+ColumnLimit: 100
+PointerAlignment: Right
+AlignAfterOpenBracket: Align
+AlignConsecutiveMacros: true
+AllowAllParametersOfDeclarationOnNextLine: false
+SortIncludes: false
+SpaceAfterCStyleCast: true
+AllowShortCaseLabelsOnASingleLine: false
+AllowAllArgumentsOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: Never
+AllowShortFunctionsOnASingleLine: None
+BinPackArguments: false
+BinPackParameters: false
+---

.github/workflows/ci-workflow.yml

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+name: Compilation & tests
+
+on: [push, pull_request]
+
+jobs:
+  job_build_debug:
+    name: Build debug
+    runs-on: ubuntu-latest
+
+    container:
+      image: docker://ledgerhq/ledger-app-builder:1.6.1-2
+
+    steps:
+      - name: Clone
+        uses: actions/checkout@v2
+
+      - name: Build Stellar
+        run: |
+          make clean
+          make DEBUG=1
+
+      - name: Upload app binary
+        uses: actions/upload-artifact@v2
+        with:
+          name: stellar-app-debug
+          path: bin

.github/workflows/lint-workflow.yml

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+name: Code style check
+
+on: [push, pull_request]
+
+jobs:
+  job_lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone
+        uses: actions/checkout@v2
+
+      - name: Lint
+        uses: DoozyX/clang-format-lint-action@v0.11
+        with:
+          source: "./"
+          extensions: "h,c"
+          clangFormatVersion: 10

.vscode/c_cpp_properties.json

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+{
+    "env": {
+        "BOLOS_SDK": "/opt/nanos-secure-sdk",
+        "BOLOS_ENV": "/opt/bolos-devenv"
+    },
+    "configurations": [
+        {
+            "name": "Nano S",
+            "includePath": [
+                "/usr/include",
+                "${workspaceFolder}/src",
+                "${env:BOLOS_SDK}/include/*",
+                "${env:BOLOS_SDK}/lib_ux/include/*"
+            ],
+            "defines": [
+                "TARGET_NANOS",
+                "OS_IO_SEPROXYHAL",
+                "HAVE_BAGL",
+                "HAVE_SPRINTF",
+                "HAVE_IO_USB",
+                "HAVE_L4_USBLIB",
+                "IO_USB_MAX_ENDPOINTS=6",
+                "IO_HID_EP_LENGTH=64",
+                "HAVE_USB_APDU",
+                "USB_SEGMENT_SIZE=64",
+                "UNUSED(x)=(void)x",
+                "APPVERSION=\"1.0.0\"",
+                "APPNAME=\"Boilerplate\"",
+                "MAJOR_VERSION=1",
+                "MINOR_VERSION=0",
+                "PATCH_VERSION=0",
+                "IO_SEPROXYHAL_BUFFER_SIZE_B=128",
+                "HAVE_UX_FLOW",
+                "DEBUG=1",
+                "HAVE_PRINTF",
+                "PRINTF=screen_printf"
+            ],
+            "compilerPath": "${env:BOLOS_ENV}/gcc-arm-none-eabi-5_3-2016q1/bin/arm-none-eabi-gcc",
+            "cStandard": "c11",
+            "cppStandard": "c++17",
+            "intelliSenseMode": "gcc-arm",
+            "browse": {
+                "limitSymbolsToIncludedHeaders": true,
+                "databaseFilename": ""
+            }
+        }
+    ],
+    "version": 4
+}

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "gdb",
+            "request": "attach",
+            "name": "Attach to gdbserver",
+            "executable": "${workspaceFolder}/bin/app.elf",
+            "target": ":1234",
+            "remote": true,
+            "cwd": "${workspaceFolder}",
+            "valuesFormatting": "parseText",
+            "gdbpath": "gdb-multiarch",
+            "autorun": [
+                "set architecture arm",
+                "handle SIGILL nostop pass noprint",
+                "add-symbol-file ${workspaceFolder}/bin/app.elf 0x40000000",
+                "b *0x40000000",
+                "c"
+            ]
+        }
+    ]
+}

.vscode/settings.json

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+{
+    "files.associations": {
+        "*.h": "c",
+        "vector": "c",
+        "memory": "c",
+        "thread": "c",
+        "string": "c"
+    },
+    "C_Cpp.clang_format_path": "/usr/bin/clang-format",
+    "editor.formatOnSave": true
+}

.vscode/tasks.json

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+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "make",
+            "type": "shell",
+            "command": "make clean && make",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$gcc"
+            ]
+        },
+        {
+            "label": "[debug] make",
+            "type": "shell",
+            "command": "make clean && make DEBUG=1",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$gcc"
+            ]
+        },
+        {
+            "label": "make clean",
+            "type": "shell",
+            "command": "make clean",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$gcc"
+            ]
+        },
+        {
+            "label": "make load",
+            "type": "shell",
+            "command": "make load",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$gcc"
+            ]
+        },
+        {
+            "label": "run unit tests",
+            "type": "shell",
+            "command": "cd unit-tests && rm -rf  build && cmake -Bbuild -H. && make -C build && CTEST_OUTPUT_ON_FAILURE=1 make -C build test",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$gcc"
+            ]
+        },
+        {
+            "label": "run Speculos",
+            "type": "shell",
+            "command": "python /path/to/speculos/speculos.py ${workspaceFolder}/bin/app.elf --ontop --sdk 1.6 --apdu-port 9999 --button-port 42000 --automation-port 43000",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "dependsOn": [
+                "make debug"
+            ],
+            "problemMatcher": []
+        },
+        {
+            "label": "[debug] run Speculos",
+            "type": "shell",
+            "command": "python /path/to/speculos/speculos.py -d ${workspaceFolder}/bin/app.elf --ontop --sdk 1.6 --apdu-port 9999 --button-port 42000 --automation-port 43000",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "dependsOn": [
+                "make debug"
+            ],
+            "problemMatcher": []
+        },
+        {
+            "label": "run tests",
+            "type": "shell",
+            "command": "cd tests && pytest",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": []
+        },
+        {
+            "label": "kill Speculos",
+            "type": "shell",
+            "command": "pkill -f speculos.py",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": []
+        }
+    ]
+}