From 983fabcd2a7518bf70eca5948f6c89b1329bad40 Mon Sep 17 00:00:00 2001
From: Jordan Bancino <jordan@bancino.net>
Date: Thu, 28 Sep 2023 19:27:50 -0400
Subject: [PATCH] Replace Cytoplasm's make.sh with configure script and
 Makefile.

---
 .gitignore |   8 ++
 configure  | 209 ++++++++++++++++++++++++++++++++++
 make.sh    | 328 -----------------------------------------------------
 3 files changed, 217 insertions(+), 328 deletions(-)
 create mode 100644 .gitignore
 create mode 100755 configure
 delete mode 100755 make.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..25a5189
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+# Cytoplasm .gitignore
+
+build
+out
+*-leaked.txt
+*.orig
+
+Makefile
diff --git a/configure b/configure
new file mode 100755
index 0000000..daa324c
--- /dev/null
+++ b/configure
@@ -0,0 +1,209 @@
+#!/usr/bin/env sh
+
+#
+# Argument Parsing
+#
+
+echo "Build Configuration"
+echo "-------------------"
+
+CFLAGS="-Wall -Wextra -pedantic -std=c89 -O3 -pipe -D_DEFAULT_SOURCE -Isrc/include"
+LDFLAGS="-lm -pthread"
+
+# Set default args for all platforms
+SCRIPT_ARGS="--lib-rtstub=RtStub --prefix=/usr/local --enable-ld-extra --lib-name=Cytoplasm --lib-version=0.4.0 --static $@"
+
+# Set platform specific args
+case "$(uname)" in
+    OpenBSD)
+        SCRIPT_ARGS="--with-libressl $SCRIPT_ARGS"
+        ;;
+    *)
+        SCRIPT_ARGS="--with-openssl $SCRIPT_ARGS"
+        ;;
+esac
+
+echo "Processing options..."
+echo "Ran with arguments: $SCRIPT_ARGS"
+
+# Process all arguments
+for arg in $SCRIPT_ARGS; do
+    case "$arg" in
+        --with-openssl)
+            TLS_IMPL="OPENSSL"
+            TLS_LIBS="-lcrypto -lssl"
+            ;;
+        --with-libressl)
+            TLS_IMPL="LIBRESSL"
+            TLS_LIBS="-ltls -lcrypto -lssl"
+            ;;
+        --disable-tls)
+            TLS_LIBS=""
+            ;;
+        --prefix=*)
+            PREFIX=$(echo "$arg" | cut -d '=' -f 2-)
+            ;;
+        --enable-ld-extra)
+            LD_EXTRA="-flto -fdata-sections -ffunction-sections -s -Wl,-gc-sections"
+            ;;
+        --disable-ld-extra)
+            LD_EXTRA=""
+            ;;
+        --lib-name=*)
+            LIB_NAME=$(echo "$arg" | cut -d '=' -f 2-)
+            ;;
+        --lib-version=*)
+            LIB_VERSION=$(echo "$arg" | cut -d '=' -f 2-)
+            ;;
+        --enable-debug)
+            DEBUG="-O0 -g"
+            echo "Notice: --enable-debug implies --disable-ld-extra and --no-static."
+            echo "You must explicitly provide --enable-ld-extra and/or --static after"
+            echo "specifying --enable-debug if you wish to enable these features in debug mode."
+            LD_EXTRA=""
+            STATIC=""
+            ;;
+        --disable-debug)
+            DEBUG=""
+            ;;
+        --lib-rtstub=*)
+            STUB=$(echo "$arg" | cut -d '=' -f 2-)
+            ;;
+        --static)
+            STATIC="-static -Wl,-static"
+            ;;
+        --no-static)
+            STATIC=""
+            ;;
+        *)
+            echo "Invalid argument: $1"
+            exit 1
+            ;;
+    esac
+done
+
+if [ -n "$TLS_IMPL" ]; then
+    CFLAGS="${CFLAGS} -DTLS_IMPL=${TLS_IMPL}"
+    LDFLAGS="${LDFLAGS} ${TLS_LIBS}"
+fi
+
+CFLAGS="${CFLAGS} '-DLIB_NAME=\"${LIB_NAME}\"' '-DLIB_VERSION=\"${LIB_VERSION}\"' ${DEBUG}"
+LDFLAGS="${LDFLAGS} ${LD_EXTRA}"
+
+#
+# Makefile generation
+#
+
+echo "Generating Makefile..."
+
+find_objs() {
+    obj_prefix="$1"
+    find src -name '*.c' | while IFS= read -r src; do
+        src=$(echo "$src" | cut -d '/' -f 2-)
+        obj=$(echo "$src" | sed -e 's/\.c$/.o/')
+        if [ "$(basename ${obj} .o)" != "${STUB}" ]; then
+            printf "${obj_prefix}${obj} "
+        fi
+    done
+}
+
+OBJS=$(find_objs "build/")
+TAB=$(printf '\t')
+
+find_tools() {
+    tools_prefix="$1"
+    find tools -name '*.c' | while IFS= read -r src; do
+        src=$(echo "$src" | cut -d '/' -f 2-)
+        bin=$(basename "$src" .c)
+            printf "${tools_prefix}${bin} "
+    done
+}
+
+find_docs() {
+    prefix="$1"
+    find src/include -name '*.h' | while IFS= read -r src; do
+        src=$(echo "$src" | cut -d '/' -f 3-)
+        doc=$(echo "$src" | sed -e 's/\.h$/.3/')
+		printf "${prefix}${doc} "
+    done
+}
+
+cat << EOF > Makefile
+.POSIX:
+
+# Generated by '$0' on $(date).
+# This file should generally not be manually edited.
+
+PREFIX = ${PREFIX}
+CFLAGS = ${CFLAGS}
+LDFLAGS = ${LDFLAGS}
+
+all: ${LIB_NAME} docs tools
+
+docs: $(find_docs "out/man/man3/Cytoplasm-")
+
+tools: $(find_tools "out/bin/")
+
+format:
+${TAB}find . -name '*.c' | while IFS= read -r src; do \\
+${TAB}  if indent "\$\$src"; then \\
+${TAB}    rm \$\$(basename "\$\$src").BAK; \\
+${TAB}  fi \\
+${TAB}done
+
+license:
+${TAB}find . -name '*.[ch]' | while IFS= read -r src; do \\
+${TAB}  srcHeader=\$\$(grep -n -m 1 '^ \*/' "\$\$src" | cut -d ':' -f 1); \\
+${TAB}  head -n\$\$srcHeader \$\$src | \\
+${TAB}    diff -u -p - "LICENSE.txt" | \\
+${TAB}    patch "\$\$src" | grep -v "^Hmm"; \\
+${TAB}done
+
+${LIB_NAME}: out/lib/${LIB_NAME}.o out/lib/lib${LIB_NAME}.a out/lib/lib${LIB_NAME}.so
+
+clean:
+${TAB}rm -r build out
+
+out/lib/${LIB_NAME}.o: build/${STUB}.o
+${TAB}@mkdir -p out/lib
+${TAB}cp build/${STUB}.o out/lib/${LIB_NAME}.o
+
+out/lib/lib${LIB_NAME}.a: ${OBJS}
+${TAB}@mkdir -p out/lib
+${TAB}\$(AR) rcs out/lib/lib${LIB_NAME}.a ${OBJS}
+
+out/lib/lib${LIB_NAME}.so: ${OBJS}
+${TAB}@mkdir -p out/lib
+${TAB}\$(CC) -shared -o out/lib/lib${LIB_NAME}.so ${OBJS} ${LDFLAGS}
+
+EOF
+
+find src -name '*.c' | while IFS= read -r src; do
+    src=$(echo "$src" | cut -d '/' -f 2-)
+    obj=$(echo "$src" | sed -e 's/\.c$/.o/')
+
+    src="src/${src}"
+    obj="build/${obj}"
+    cc -Isrc/include -MM -MT "${obj}" "${src}" >> Makefile
+    echo "${TAB}@mkdir -p $(dirname ${obj})" >> Makefile
+    echo "${TAB}\$(CC) \$(CFLAGS) -fPIC -c -o \"${obj}\" \"${src}\"" >> Makefile
+done
+
+find tools -name '*.c' | while IFS= read -r src; do
+    out="out/bin/$(basename "$src" .c)"
+
+    echo "${out}: out/lib/lib${LIB_NAME}.a out/lib/lib${LIB_NAME}.so out/lib/${LIB_NAME}.o ${src}" >> Makefile
+    echo "${TAB}@mkdir -p out/bin" >> Makefile
+    echo "${TAB}\$(CC) \$(CFLAGS) -o \"${out}\" \"${src}\" out/lib/${LIB_NAME}.o -Lout/lib \$(LDFLAGS) -l${LIB_NAME} ${STATIC}" >> Makefile
+done
+
+find src/include -name '*.h' | while IFS= read -r header; do
+    src=$(echo "$header" | cut -d '/' -f 2-)
+    out=$(echo "$header" | cut -d '/' -f 3- | sed -e 's/\.h$/.3/')
+
+	echo "out/man/man3/Cytoplasm-${out}: out/bin/hdoc src/${src}" >> Makefile
+	echo "${TAB}@mkdir -p out/man/man3" >> Makefile
+	echo "${TAB}out/bin/hdoc -D \"Os=${LIB_NAME}\" -i \"src/${src}\" -o \"out/man/man3/Cytoplasm-${out}\"" >> Makefile
+done
+
+echo "Done. Run 'make' to build ${LIB_NAME}."
diff --git a/make.sh b/make.sh
deleted file mode 100755
index 82d18c2..0000000
--- a/make.sh
+++ /dev/null
@@ -1,328 +0,0 @@
-#!/usr/bin/env sh
-
-addprefix() {
-	prefix="$1"
-	shift
-	for thing in "$@"; do
-		echo "${prefix}${thing}"
-	done
-
-	unset prefix
-	unset thing
-}
-
-: "${NAME:=Cytoplasm}"
-: "${LIB_NAME:=$(echo ${NAME} | tr '[A-Z]' '[a-z]')}"
-: "${VERSION:=0.4.0}"
-
-: "${CVS_TAG:=${NAME}-$(echo ${VERSION} | sed 's/\./_/g')}"
-
-
-: "${SRC:=src}"
-: "${TOOLS:=tools}"
-: "${EXAMPLES:=examples}"
-: "${BUILD:=build}"
-: "${OUT:=out}"
-: "${STUB:=RtStub}"
-: "${LICENSE:=LICENSE.txt}"
-
-: "${CC:=cc}"
-: "${AR:=ar}"
-
-: "${DEFINES:=-D_DEFAULT_SOURCE -DLIB_NAME=\"${NAME}\" -DLIB_VERSION=\"${VERSION}\"}"
-: "${INCLUDE:=${SRC}/include}"
-
-: "${CFLAGS:=-Wall -Wextra -pedantic -std=c89 -O3 -pipe}"
-: "${LD_EXTRA:=-flto -fdata-sections -ffunction-sections -s -Wl,-gc-sections}"
-: "${LDFLAGS:=-lm -pthread}"
-
-if [ "${DEBUG}" = "1" ]; then
-    CFLAGS="${CFLAGS} -O0 -g"
-    LD_EXTRA=""
-fi
-
-if [ -n "${TLS_IMPL}" ]; then
-    case "${TLS_IMPL}" in
-        "LIBRESSL")
-            TLS_LIBS="-ltls -lcrypto -lssl"
-            ;;
-        "OPENSSL")
-            TLS_LIBS="-lcrypto -lssl"
-            ;;
-        *)
-            echo "Unrecognized TLS implementation: ${TLS_IMPL}"
-            echo "Consult Tls.h for supported implementations."
-            echo "Note that the TLS_ prefix is omitted in TLS_IMPL."
-            exit 1
-            ;;
-    esac
-
-    DEFINES="${DEFINES} -DTLS_IMPL=TLS_${TLS_IMPL}"
-    LDFLAGS="${LDFLAGS} ${TLS_LIBS}"
-fi
-
-CFLAGS="${CFLAGS} ${DEFINES} $(addprefix -I$(pwd)/ ${INCLUDE})"
-LDFLAGS="${LDFLAGS} ${LD_EXTRA}"
-
-# Check the modificiation time of a file. This is used to do
-# incremental builds; we only want to rebuild files that have
-# have changed.
-mod_time() {
-    if [ -n "$1" ] && [ -f "$1" ]; then
-        case "$(uname)" in
-            Linux | CYGWIN_NT* | Haiku)
-                stat -c %Y "$1"
-                ;;
-            *BSD | DragonFly | Minix)
-                stat -f %m "$1"
-                ;;
-            *)
-                # Platform unknown, force rebuilding the whole
-                # project every time.
-                echo "0"
-                ;;
-        esac
-    else
-        echo "0"
-    fi
-}
-
-# Substitute shell variables in a stream with their actual value
-# in this shell.
-setsubst() {
-    SED="/tmp/sed-$RANDOM.txt"
-
-    (
-        set | while IFS='=' read -r var val; do
-            val=$(echo "$val" | cut -d "'" -f 2- | rev | cut -d "'" -f 2- | rev)
-            echo "s|\\\${$var}|$val|g"
-        done
-
-        echo "s|\\\${[a-zA-Z_]*}||g"
-        echo "s|'''|'|g"
-    ) >"$SED"
-
-    sed -f "$SED" $@
-    rm "$SED"
-}
-
-recipe_docs() {
-	export LD_LIBRARY_PATH="${OUT}/lib"
-    mkdir -p "${OUT}/man/man3"
-
-    for header in $(find ${INCLUDE} -name '*.h'); do
-        basename=$(basename "$header")
-        man=$(echo "${OUT}/man/man3/$basename" | sed -e 's/\.h$/\.3/')
-
-        if [ $(mod_time "$header") -ge $(mod_time "$man") ]; then
-            echo "DOC $basename"
-            if ! "${OUT}/bin/hdoc" -D "Os=${NAME}" -i "$header" -o "$man"; then
-                rm "$man"
-                exit 1
-            fi
-        fi
-    done
-
-    if which makewhatis 2>&1 > /dev/null; then
-        makewhatis "${OUT}/man"
-    fi
-}
-
-recipe_libs() {
-	echo "-lm -pthread ${TLS_LIBS}"
-}
-
-recipe_build() {
-    mkdir -p "${BUILD}" "${OUT}/bin" "${OUT}/lib"
-    cd "${SRC}"
-
-
-    echo "CC = ${CC}"
-    echo "CFLAGS = ${CFLAGS}"
-    echo "LDFLAGS = ${LDFLAGS}"
-    echo
-
-    do_rebuild=0
-    objs=""
-    for src in $(find . -name '*.c' | cut -d '/' -f 2-); do
-        obj=$(echo "${BUILD}/$src" | sed -e 's/\.c$/\.o/')
-
-        if [ $(basename "$obj" .o) != "${STUB}" ]; then
-            objs="$objs $obj"
-        fi
-
-        if [ $(mod_time "$src") -ge $(mod_time "../$obj") ]; then
-            echo "CC $(basename $obj)"
-            obj_dir=$(dirname "../$obj")
-            mkdir -p "$obj_dir"
-            if ! $CC $CFLAGS -fPIC -c -o "../$obj" "$src"; then
-                exit 1
-            fi
-            do_rebuild=1
-        fi
-    done
-
-    cd ..
-
-    if [ $do_rebuild -eq 1 ] || [ ! -f "${OUT}/lib/lib${LIB_NAME}.a" ]; then
-        echo "AR lib${LIB_NAME}.a"
-        if ! $AR rcs "${OUT}/lib/lib${LIB_NAME}.a" $objs; then
-            exit 1
-        fi
-    fi
-
-    if [ $do_rebuild -eq 1 ] || [ ! -f "${OUT}/lib/lib${LIB_NAME}.so" ]; then
-        echo "LD lib${LIB_NAME}.so"
-        if ! $CC -shared -o "${OUT}/lib/lib${LIB_NAME}.so" $objs ${LDFLAGS}; then
-            exit 1
-        fi
-    fi
-
-    cp "${BUILD}/${STUB}.o" "${OUT}/lib/${LIB_NAME}.o"
-
-    for src in $(find "${TOOLS}" -name '*.c'); do
-        out=$(basename "$src" .c)
-        out="${OUT}/bin/$out"
-
-        if [ $(mod_time "$src") -ge $(mod_time "$out") ] || [ $do_rebuild -eq 1 ]; then
-            echo "CC $(basename $out)"
-            mkdir -p "$(dirname $out)"
-            if ! $CC $CFLAGS -o "$out" "$src" "${OUT}/lib/${LIB_NAME}.o" "-L${OUT}/lib" "-l${LIB_NAME}" ${LDFLAGS}; then
-                exit 1
-            fi
-        fi
-    done
-
-    recipe_docs
-}
-
-recipe_examples() {
-    for src in $(find "${EXAMPLES}" -name '*.c'); do
-        out=$(basename "$src" .c)
-        out="${OUT}/bin/$out"
-
-        if [ $(mod_time "$src") -ge $(mod_time "$out") ]; then
-            echo "CC $(basename $out)"
-            mkdir -p "$(dirname $out)"
-            if ! $CC $CFLAGS -o "$out" "$src" "${OUT}/lib/${LIB_NAME}.o" "-L${OUT}/lib" "-l${LIB_NAME}" ${LDFLAGS}; then
-                exit 1
-            fi
-        fi
-    done
-
-}
-
-recipe_clean() {
-    rm -r "${BUILD}" "${OUT}"
-}
-
-# Update copyright comments in sources and header files.
-recipe_license() {
-    find . -name '*.[ch]' | while IFS= read -r src; do
-        if [ -t 1 ]; then
-            printf "LICENSE %s%*c\r" $(basename "$src") "16" " "
-        fi
-        srcHeader=$(grep -n -m 1 '^ \*/' "$src" | cut -d ':' -f 1)
-        head "-n$srcHeader" "$src" |
-            diff -u -p - "${LICENSE}" |
-            patch "$src" | grep -v "^Hmm"
-    done
-    if [ -t 1 ]; then
-        printf "%*c\n" "50" " "
-    fi
-}
-
-# Format source code files by running indent(1) on them.
-recipe_format() {
-    find . -name '*.c' | while IFS= read -r src; do
-        if [ -t 1 ]; then
-            printf "FMT %s%*c\r" $(basename "$src") "16" " "
-        fi
-        if indent "$src"; then
-            rm $(basename "$src").BAK
-        fi
-    done
-    if [ -t 1 ]; then
-        printf "%*c\n" "50" " "
-    fi
-}
-
-# Generate a release tarball, checksum and sign it, and push it to
-# the web root.
-recipe_release() {
-    # Tag the release at this point in time.
-    cvs tag "$CVS_TAG"
-
-	mkdir -p "${OUT}/release"
-    cd "${OUT}/release"
-
-    # Generate the release tarball.
-    cvs export "-r$CVS_TAG" "${NAME}"
-    mv "${NAME}" "${NAME}-v${VERSION}"
-    tar -czf "${NAME}-v${VERSION}.tar.gz" "${NAME}-v${VERSION}"
-    rm -r "${NAME}-v${VERSION}"
-
-    # Checksum the release tarball.
-    sha256 "${NAME}-v${VERSION}.tar.gz" > "${NAME}-v${VERSION}.tar.gz.sha256"
-
-    # Sign the release tarball.
-    if [ ! -z "${SIGNIFY_SECRET}" ]; then
-        signify -S -s "${SIGNIFY_SECRET}" \
-            -m "${NAME}-v${VERSION}.tar.gz" \
-            -x "${NAME}-v${VERSION}.tar.gz.sig"
-    else
-        echo "Warning: SIGNIFY_SECRET not net."
-        echo "The built tarball will not be signed."
-    fi
-}
-
-recipe_patch() {
-    # If the user has not set their MXID, try to deduce one from
-    # their system.
-    if [ -z "$MXID" ]; then
-        MXID="@${USER}:$(hostname)"
-    fi
-
-    # If the user has not set their EDITOR, use a safe default.
-    # (vi should be available on any POSIX system)
-    if [ -z "$EDITOR" ]; then
-        EDITOR=vi
-    fi
-
-    NORMALIZED_MXID=$(echo "$MXID" | sed -e 's/@//g' -e 's/:/-/g')
-    PATCH_FILE="${NORMALIZED_MXID}_$(date +%s).patch"
-
-    # Generate the actual patch file
-    # Here we write some nice headers, and then do a cvs diff.
-    (
-        printf 'From: "%s" <%s>\n' "$DISPLAY_NAME" "$MXID"
-        echo "Date: $(date)"
-        echo "Subject: "
-        echo
-        cvs -q diff -uNp $PATCHSET | grep -v '^\? '
-    ) >"$PATCH_FILE"
-
-    "$EDITOR" "$PATCH_FILE"
-    echo "$PATCH_FILE"
-}
-
-recipe_diff() {
-    tmp_patch="/tmp/${NAME}-$(date +%s).patch"
-    cvs -q diff -uNp $PATCHSET >"$tmp_patch"
-    if [ -z "$PAGER" ]; then
-        PAGER="less -F"
-    fi
-
-    $PAGER "$tmp_patch"
-    rm "$tmp_patch"
-}
-
-# Execute the user-specified recipes.
-for recipe in $@; do
-    recipe_$recipe
-done
-
-# If no recipe was provided, run a build.
-if [ -z "$1" ]; then
-    recipe_build
-fi