test: Remove extended lint (cppcheck)

These are unreferenced in the CI and documentation, and have been since
2019 (see #17549).

I'm not sure the cppcheck is worthwhile. It takes a long time
to run (I think this is why it isn't in the normal lints), and right
now it only appears to find implicit constructors. The list of
exceptions is out of date. But if anyone wants to bring it back at any
time in the future they can do so from git history (and port it to Python).

2 files changed, 0 insertions, 114 deletions

diff --git a/test/lint/extended-lint-all.sh b/test/lint/extended-lint-all.sh
deleted file mode 100755
index be5d9db4a9..0000000000
--- a/test/lint/extended-lint-all.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright (c) 2019-2020 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-#
-# This script runs all contrib/devtools/extended-lint-*.sh files, and fails if
-# any exit with a non-zero status code.
-
-# This script is intentionally locale dependent by not setting "export LC_ALL=C"
-# in order to allow for the executed lint scripts to opt in or opt out of locale
-# dependence themselves.
-
-set -u
-
-SCRIPTDIR=$(dirname "${BASH_SOURCE[0]}")
-LINTALL=$(basename "${BASH_SOURCE[0]}")
-
-for f in "${SCRIPTDIR}"/extended-lint-*.sh; do
-  if [ "$(basename "$f")" != "$LINTALL" ]; then
-    if ! "$f"; then
-      echo "^---- failure generated from $f"
-      exit 1
-    fi
-  fi
-done
diff --git a/test/lint/extended-lint-cppcheck.sh b/test/lint/extended-lint-cppcheck.sh
deleted file mode 100755
index 2af39ed60a..0000000000
--- a/test/lint/extended-lint-cppcheck.sh
+++ /dev/null
@@ -1,88 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright (c) 2019-2021 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-#
-
-export LC_ALL=C
-
-ENABLED_CHECKS=(
-    "Class '.*' has a constructor with 1 argument that is not explicit."
-    "Struct '.*' has a constructor with 1 argument that is not explicit."
-)
-
-IGNORED_WARNINGS=(
-    "src/arith_uint256.h:.* Class 'arith_uint256' has a constructor with 1 argument that is not explicit."
-    "src/arith_uint256.h:.* Class 'base_uint < 256 >' has a constructor with 1 argument that is not explicit."
-    "src/arith_uint256.h:.* Class 'base_uint' has a constructor with 1 argument that is not explicit."
-    "src/coins.h:.* Class 'CCoinsViewBacked' has a constructor with 1 argument that is not explicit."
-    "src/coins.h:.* Class 'CCoinsViewCache' has a constructor with 1 argument that is not explicit."
-    "src/coins.h:.* Class 'CCoinsViewCursor' has a constructor with 1 argument that is not explicit."
-    "src/net.h:.* Class 'CNetMessage' has a constructor with 1 argument that is not explicit."
-    "src/policy/feerate.h:.* Class 'CFeeRate' has a constructor with 1 argument that is not explicit."
-    "src/prevector.h:.* Class 'const_iterator' has a constructor with 1 argument that is not explicit."
-    "src/prevector.h:.* Class 'const_reverse_iterator' has a constructor with 1 argument that is not explicit."
-    "src/prevector.h:.* Class 'iterator' has a constructor with 1 argument that is not explicit."
-    "src/prevector.h:.* Class 'reverse_iterator' has a constructor with 1 argument that is not explicit."
-    "src/primitives/block.h:.* Class 'CBlock' has a constructor with 1 argument that is not explicit."
-    "src/primitives/transaction.h:.* Class 'CTransaction' has a constructor with 1 argument that is not explicit."
-    "src/protocol.h:.* Class 'CMessageHeader' has a constructor with 1 argument that is not explicit."
-    "src/qt/guiutil.h:.* Class 'ItemDelegate' has a constructor with 1 argument that is not explicit."
-    "src/rpc/util.h:.* Struct 'RPCResults' has a constructor with 1 argument that is not explicit."
-    "src/rpc/util.h:.* Struct 'UniValueType' has a constructor with 1 argument that is not explicit."
-    "src/rpc/util.h:.* style: Struct 'UniValueType' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'AddressDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'ComboDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'ConstPubkeyProvider' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'PKDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'PKHDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'RawDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'SHDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'WPKHDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/descriptor.cpp:.* Class 'WSHDescriptor' has a constructor with 1 argument that is not explicit."
-    "src/script/script.h:.* Class 'CScript' has a constructor with 1 argument that is not explicit."
-    "src/script/standard.h:.* Class 'CScriptID' has a constructor with 1 argument that is not explicit."
-    "src/span.h:.* Class 'Span < const CRPCCommand >' has a constructor with 1 argument that is not explicit."
-    "src/span.h:.* Class 'Span < const char >' has a constructor with 1 argument that is not explicit."
-    "src/span.h:.* Class 'Span < const std :: vector <unsigned char > >' has a constructor with 1 argument that is not explicit."
-    "src/span.h:.* Class 'Span < const uint8_t >' has a constructor with 1 argument that is not explicit."
-    "src/span.h:.* Class 'Span' has a constructor with 1 argument that is not explicit."
-    "src/support/allocators/secure.h:.* Struct 'secure_allocator < char >' has a constructor with 1 argument that is not explicit."
-    "src/support/allocators/secure.h:.* Struct 'secure_allocator < RNGState >' has a constructor with 1 argument that is not explicit."
-    "src/support/allocators/secure.h:.* Struct 'secure_allocator < unsigned char >' has a constructor with 1 argument that is not explicit."
-    "src/support/allocators/zeroafterfree.h:.* Struct 'zero_after_free_allocator < char >' has a constructor with 1 argument that is not explicit."
-    "src/test/checkqueue_tests.cpp:.* Struct 'FailingCheck' has a constructor with 1 argument that is not explicit."
-    "src/test/checkqueue_tests.cpp:.* Struct 'MemoryCheck' has a constructor with 1 argument that is not explicit."
-    "src/test/checkqueue_tests.cpp:.* Struct 'UniqueCheck' has a constructor with 1 argument that is not explicit."
-    "src/test/fuzz/util.h:.* Class 'FuzzedFileProvider' has a constructor with 1 argument that is not explicit."
-    "src/test/fuzz/util.h:.* Class 'FuzzedAutoFileProvider' has a constructor with 1 argument that is not explicit."
-    "src/wallet/db.h:.* Class 'BerkeleyEnvironment' has a constructor with 1 argument that is not explicit."
-)
-
-if ! command -v cppcheck > /dev/null; then
-    echo "Skipping cppcheck linting since cppcheck is not installed. Install by running \"apt install cppcheck\""
-    exit 0
-fi
-
-function join_array {
-    local IFS="$1"
-    shift
-    echo "$*"
-}
-
-ENABLED_CHECKS_REGEXP=$(join_array "|" "${ENABLED_CHECKS[@]}")
-IGNORED_WARNINGS_REGEXP=$(join_array "|" "${IGNORED_WARNINGS[@]}")
-WARNINGS=$(git ls-files -- "*.cpp" "*.h" ":(exclude)src/leveldb/" ":(exclude)src/crc32c/" ":(exclude)src/secp256k1/" ":(exclude)src/minisketch/" ":(exclude)src/univalue/" | \
-    xargs cppcheck --enable=all -j "$(getconf _NPROCESSORS_ONLN)" --language=c++ --std=c++17 --template=gcc -D__cplusplus -DCLIENT_VERSION_BUILD -DCLIENT_VERSION_IS_RELEASE -DCLIENT_VERSION_MAJOR -DCLIENT_VERSION_MINOR -DCOPYRIGHT_YEAR -DDEBUG -I src/ -q 2>&1 | sort -u | \
-    grep -E "${ENABLED_CHECKS_REGEXP}" | \
-    grep -vE "${IGNORED_WARNINGS_REGEXP}")
-if [[ ${WARNINGS} != "" ]]; then
-    echo "${WARNINGS}"
-    echo
-    echo "Advice not applicable in this specific case? Add an exception by updating"
-    echo "IGNORED_WARNINGS in $0"
-    # Uncomment to enforce the developer note policy "By default, declare single-argument constructors `explicit`"
-    # exit 1
-fi
-exit 0