Merge bitcoin/bitcoin#30869: ci: Print inner env, Make ccache config more flexible

fa99e4521b ci: Allow CCACHE_DIR bind mount (MarcoFalke)
fa252da0b9 ci: Remove hardcoded CCACHE_DIR in cirrus (MarcoFalke)
fa146904e1 ci: Bump default CCACHE_MAXSIZE to 500M (MarcoFalke)
aaaa7cf8ba cirrus: Drop CCACHE_NOHASHDIR (MarcoFalke)
fa7ca182a9 ci: Print inner env (MarcoFalke)

Pull request description:

  The outer env is printed when the `/tmp/env-$USER-$CONTAINER_NAME` is created. There is also a separate env printed when building the container image (usually with default values).

  To confirm that the inner container env is correctly derived from the outer env, and not from the default build env, print it a third time.

ACKs for top commit:
  l0rinc:
    utACK fa99e4521b
  willcl-ark:
    ACK fa99e4521b

Tree-SHA512: 59fd3262d551e09224866e31c14ca865461e81abbe00b83391fe3a9c7ada30fd2fd0272e4aa812df2712433ac7594d1a55cf674248b341359cec09c8d3f0c58b

.cirrus.yml

@@ -4,9 +4,6 @@ env:  # Global defaults
   MAKEJOBS: "-j10"
   TEST_RUNNER_PORT_MIN: "14000"  # Must be larger than 12321, which is used for the http cache. See https://cirrus-ci.org/guide/writing-tasks/#http-cache
   CI_FAILFAST_TEST_LEAVE_DANGLING: "1"  # Cirrus CI does not care about dangling processes and setting this variable avoids killing the CI script itself on error
-  CCACHE_MAXSIZE: "200M"
-  CCACHE_DIR: "/tmp/ccache_dir"
-  CCACHE_NOHASHDIR: "1"  # Debug info might contain a stale path if the build dir changes, but this is fine
 
 # A self-hosted machine(s) can be used via Cirrus CI. It can be configured with
 # multiple users to run tasks in parallel. No sudo permission is required.

ci/test/00_setup_env.sh

@@ -53,12 +53,12 @@ export RUN_FUZZ_TESTS=${RUN_FUZZ_TESTS:-false}
 export BOOST_TEST_RANDOM=${BOOST_TEST_RANDOM:-1}
 # See man 7 debconf
 export DEBIAN_FRONTEND=noninteractive
-export CCACHE_MAXSIZE=${CCACHE_MAXSIZE:-100M}
+export CCACHE_MAXSIZE=${CCACHE_MAXSIZE:-500M}
 export CCACHE_TEMPDIR=${CCACHE_TEMPDIR:-/tmp/.ccache-temp}
 export CCACHE_COMPRESS=${CCACHE_COMPRESS:-1}
 # The cache dir.
 # This folder exists only on the ci guest, and on the ci host as a volume.
-export CCACHE_DIR=${CCACHE_DIR:-$BASE_SCRATCH_DIR/.ccache}
+export CCACHE_DIR="${CCACHE_DIR:-$BASE_SCRATCH_DIR/ccache}"
 # Folder where the build result is put (bin and lib).
 export BASE_OUTDIR=${BASE_OUTDIR:-$BASE_SCRATCH_DIR/out}
 # The folder for previous release binaries.

ci/test/00_setup_env_mac_native.sh

@@ -15,5 +15,4 @@ export BITCOIN_CONFIG="-DBUILD_GUI=ON -DWITH_ZMQ=ON -DWITH_MINIUPNPC=ON -DWITH_N
 export CI_OS_NAME="macos"
 export NO_DEPENDS=1
 export OSX_SDK=""
-export CCACHE_MAXSIZE=400M
 export RUN_FUZZ_TESTS=true

ci/test/00_setup_env_native_asan.sh

@@ -32,4 +32,3 @@ export BITCOIN_CONFIG="\
  -DAPPEND_CXXFLAGS='-std=c++23' \
  -DAPPEND_CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER' \
 "
-export CCACHE_MAXSIZE=300M

ci/test/00_setup_env_native_fuzz.sh

@@ -23,5 +23,4 @@ export BITCOIN_CONFIG="\
  -DCMAKE_C_FLAGS='-ftrivial-auto-var-init=pattern' \
  -DCMAKE_CXX_FLAGS='-ftrivial-auto-var-init=pattern' \
 "
-export CCACHE_MAXSIZE=200M
 export LLVM_SYMBOLIZER_PATH="/usr/bin/llvm-symbolizer-18"

ci/test/00_setup_env_native_fuzz_with_msan.sh

@@ -31,4 +31,3 @@ export USE_MEMORY_SANITIZER="true"
 export RUN_UNIT_TESTS="false"
 export RUN_FUNCTIONAL_TESTS="false"
 export RUN_FUZZ_TESTS=true
-export CCACHE_MAXSIZE=250M

ci/test/00_setup_env_native_fuzz_with_valgrind.sh

@@ -21,4 +21,3 @@ export BITCOIN_CONFIG="\
  -DCMAKE_C_COMPILER=clang-16 \
  -DCMAKE_CXX_COMPILER=clang++-16 \
 "
-export CCACHE_MAXSIZE=200M

ci/test/00_setup_env_native_msan.sh

@@ -28,4 +28,3 @@ export BITCOIN_CONFIG="\
 "
 export USE_MEMORY_SANITIZER="true"
 export RUN_FUNCTIONAL_TESTS="false"
-export CCACHE_MAXSIZE=250M

ci/test/00_setup_env_native_tidy.sh

@@ -25,4 +25,3 @@ export BITCOIN_CONFIG="\
  -DCMAKE_C_FLAGS_RELWITHDEBINFO='-O0 -g0' \
  -DCMAKE_CXX_FLAGS_RELWITHDEBINFO='-O0 -g0' \
 "
-export CCACHE_MAXSIZE=200M

ci/test/02_run_container.sh

@@ -48,6 +48,14 @@ if [ -z "$DANGER_RUN_CI_ON_HOST" ]; then
     CI_PREVIOUS_RELEASES_MOUNT="type=bind,src=${PREVIOUS_RELEASES_DIR},dst=$PREVIOUS_RELEASES_DIR"
   fi
 
+  if [ "$DANGER_CI_ON_HOST_CCACHE_FOLDER" ]; then
+    if [ ! -d "${CCACHE_DIR}" ]; then
+      echo "Error: Directory '${CCACHE_DIR}' must be created in advance."
+      exit 1
+    fi
+    CI_CCACHE_MOUNT="type=bind,src=${CCACHE_DIR},dst=${CCACHE_DIR}"
+  fi
+
   docker network create --ipv6 --subnet 1111:1111::/112 ci-ip6net || true
 
   if [ -n "${RESTART_CI_DOCKER_BEFORE_RUN}" ] ; then

ci/test/03_test_script.sh

@@ -30,6 +30,10 @@ df -h
 # Tests that run natively guess the host
 export HOST=${HOST:-$("$BASE_ROOT_DIR/depends/config.guess")}
 
+echo "=== BEGIN env ==="
+env
+echo "=== END env ==="
+
 (
   # compact->outputs[i].file_size is uninitialized memory, so reading it is UB.
   # The statistic bytes_written is only used for logging, which is disabled in