chore: Simplify coverage dockerfile.

Use per-dockerfile dockerignore instead of sources for coverage. It's a
bit more duplication (dockerignore is copied out of the sources one),
but it's a bit more efficient and works in more situations (e.g. one
where you can only build 1 dockerfile such as on render.com).

.github/workflows/post-submit.yml

@@ -28,11 +28,6 @@ jobs:
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build toxchat/c-toxcore:sources
-        uses: docker/build-push-action@v4
-        with:
-          file: other/docker/sources/sources.Dockerfile
-          tags: toxchat/c-toxcore:sources
       - name: Build and push
         uses: docker/build-push-action@v4
         with:

other/docker/coverage/coverage.Dockerfile

@@ -1,4 +1,3 @@
-FROM toxchat/c-toxcore:sources AS sources
 FROM ubuntu:20.04 AS build
 
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
@@ -41,10 +40,10 @@ ENV CC=clang-17 \
     PYTHONUNBUFFERED=1 \
     PATH=$PATH:/usr/lib/go-1.18/bin
 
-COPY --from=sources /src/ /work/
+COPY . /work/
 
 WORKDIR /work
-RUN git clone --depth=1 https://github.com/TokTok/toktok-fuzzer /work/testing/fuzzing/toktok-fuzzer
+RUN ["git", "clone", "--depth=1", "https://github.com/TokTok/toktok-fuzzer", "/work/testing/fuzzing/toktok-fuzzer"]
 RUN source .github/scripts/flags-coverage.sh \
  && go version \
  && (cd other/proxy && go get github.com/things-go/go-socks5 && go build proxy_server.go) \
@@ -76,8 +75,7 @@ RUN clang-17 -fuse-ld=lld -fPIC -shared -O2 -g3 -Wall -I/usr/lib/llvm-17/include
  && install mallocfail.so /usr/local/lib/mallocfail.so
 
 WORKDIR /work/_build
-COPY other/docker/coverage/run_mallocfail /usr/local/bin/
-RUN ["run_mallocfail", "--ctest=1", "--jobs=8"]
+RUN ["/work/other/docker/coverage/run_mallocfail", "--ctest=1", "--jobs=8"]
 RUN llvm-profdata-17 merge -sparse $(find . -name "*.profraw") -o toxcore.profdata
 RUN llvm-cov-17 show -format=text -instr-profile=toxcore.profdata -sources $(cmake --build . --target help | grep -o '[^:]*_test:' | grep -o '[^:]*' | xargs -n1 find . -type f -name | awk '{print "-object "$1}') > coverage.txt
 RUN llvm-cov-17 show -format=html -instr-profile=toxcore.profdata -sources $(cmake --build . --target help | grep -o '[^:]*_test:' | grep -o '[^:]*' | xargs -n1 find . -type f -name | awk '{print "-object "$1}') -output-dir=html

other/docker/coverage/coverage.Dockerfile.dockerignore

@@ -0,0 +1,25 @@
+# ===== common =====
+# Ignore everything ...
+**/*
+# ... except sources
+!**/*.[ch]
+!**/*.cc
+!**/*.hh
+!CHANGELOG.md
+!LICENSE
+!README.md
+!auto_tests/data/*
+!other/bootstrap_daemon/bash-completion/**
+!other/bootstrap_daemon/tox-bootstrapd.*
+!other/proxy/*.mod
+!other/proxy/*.sum
+!other/proxy/*.go
+# ... and CMake build files (used by most builds).
+!**/CMakeLists.txt
+!.github/scripts/flags*.sh
+!cmake/*.cmake
+!other/pkgconfig/*
+!other/rpm/*
+!so.version
+# ===== custom =====
+!other/docker/coverage/run_mallocfail

other/docker/coverage/dockerignore

@@ -0,0 +1,2 @@
+# ===== custom =====
+!other/docker/coverage/run_mallocfail

other/docker/coverage/run

@@ -4,8 +4,5 @@ set -eux
 
 read -a ci_env <<<"$(bash <(curl -s https://codecov.io/env))"
 
-BUILD=coverage
-other/docker/sources/build
-docker build -t "toxchat/c-toxcore:$BUILD" -f "other/docker/$BUILD/$BUILD.Dockerfile" .
-
-docker run "${ci_env[@]}" -e CI=true --name toxcore-coverage --rm -t toxchat/c-toxcore:coverage /usr/local/bin/codecov
+. "$(realpath -- "${BASH_SOURCE[0]}/../../sources/run.sh")"
+docker run "${ci_env[@]}" -e CI=true --name "toxcore-$BUILD" --rm -t "toxchat/c-toxcore:$BUILD" /usr/local/bin/codecov

other/docker/coverage/serve

@@ -2,9 +2,7 @@
 
 set -eux
 
-BUILD=coverage
-other/docker/sources/build
-docker build -t "toxchat/c-toxcore:$BUILD" -f "other/docker/$BUILD/$BUILD.Dockerfile" .
+. "$(realpath -- "${BASH_SOURCE[0]}/../../sources/run.sh")"
 
-docker build -t toxchat/c-toxcore:coverage-nginx -f other/docker/coverage/nginx.Dockerfile other/docker/coverage
-docker run --name toxcore-coverage --rm -it -p "28192:80" toxchat/c-toxcore:coverage-nginx
+docker build -t "toxchat/c-toxcore:$BUILD-nginx" -f "$DOCKERDIR/nginx.Dockerfile" "$DOCKERDIR"
+docker run --name "toxcore-$BUILD" --rm -it -p "28192:80" "toxchat/c-toxcore:$BUILD-nginx"

other/docker/doxygen/run

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
-. "$(cd "$(dirname "${BASH_SOURCE[0]}")/../sources" && pwd)/run.sh"
+. "$(realpath -- "${BASH_SOURCE[0]}/../../sources/run.sh")"
 docker run --name toxcore-doxygen --rm -it -p "28192:80" "toxchat/c-toxcore:$BUILD"