From 47a23d01986d05b58bbeb58f85d7856ccfa17479 Mon Sep 17 00:00:00 2001
From: Noah Swerhun <noah@noahsw.xyz>
Date: Thu, 23 Dec 2021 22:34:22 -0600
Subject: [PATCH] first commit

---
 .gitignore |   4 ++
 cbuild.sh  | 129 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 133 insertions(+)
 create mode 100644 .gitignore
 create mode 100755 cbuild.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6704726
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.makefile
+foo
+obj/
+src/
diff --git a/cbuild.sh b/cbuild.sh
new file mode 100755
index 0000000..8b863e2
--- /dev/null
+++ b/cbuild.sh
@@ -0,0 +1,129 @@
+#!/bin/sh
+
+# --- USER CONFIG ---
+CC="gcc"
+CFLAGS="-Wall -Wpedantic -std=c99"
+LDFLAGS=""
+LDLIBS=""
+TARGET="foo"
+SRCDIR="src"
+OBJDIR="obj"
+MAKEFILE=".makefile"
+# -------------------
+
+PROG_COMMAND="./cbuild.sh __progress__"
+SRC="$(find ${SRCDIR} -name '*\.c')"
+OBJ="$(find ${SRCDIR} -name '*\.c' |
+    sed "s/${SRCDIR}\//${OBJDIR}\//" |
+    sed "s/\.c$/.o/" |
+    tr '\n' ' ')"
+
+srcnum="$(find ${SRCDIR} -name '*\.c' -exec printf %c {} + | wc -c)"
+
+export_vars() {
+    export CC
+    export CFLAGS
+    export LDFLAGS
+    export LDLIBS
+    export TARGET
+    export OBJ
+    export PROG_COMMAND
+}
+
+info() {
+    printf "\e[34;1m[*]\e[21m %s\e[0m\n" "$@"
+}
+
+err() {
+    printf "\e[31;1m[!]\e[21m %s\e[0m\n" "$@"
+}
+
+gen_makefile() {
+    info "Generating makefile..."
+    [ -f "${MAKEFILE}" ] && chmod +w "${MAKEFILE}"
+    cat > "${MAKEFILE}" <<'EOF'
+##########################
+# GENERATED BY cbuild.sh #
+# DO NOT MODIFY BY HAND  #
+##########################
+.POSIX:
+.SUFFIXES:
+
+$(TARGET): $(OBJ)
+	@$(PROG_COMMAND) link $(TARGET)
+	@$(CC) $(LDFLAGS) -o $(TARGET) $(OBJ) $(LDLIBS)
+
+EOF
+    i=1
+    echo "${SRC}" | while read srcname; do
+        objname="$(echo "${srcname}" |
+            sed "s/${SRCDIR}\//${OBJDIR}\//" |
+            sed "s/\.c$/.o/")"
+
+        gcc -MM -MT "${objname}" "${srcname}" >> "${MAKEFILE}"
+
+        printf "\t@%s object %s\n" \
+            '$(PROG_COMMAND)' "${objname}" >> "${MAKEFILE}"
+
+        printf "\t@%s %s -o %s -c %s\n" '$(CC)' '$(CFLAGS)' \
+            "${objname}" "${srcname}" >> "${MAKEFILE}"
+
+        i=$((${i}+1))
+    done 
+    chmod -w "${MAKEFILE}"
+}
+
+build() {
+    gen_makefile
+    [ ! -d "${OBJDIR}" ] && mkdir "${OBJDIR}"
+    export_vars
+    make -f "${MAKEFILE}" -e "${TARGET}" -n | grep "^${CC}" | wc -l > .cbuild_prog.tmp
+    info "Beginning build..."
+    make -f "${MAKEFILE}" -e "${TARGET}" &&
+        info "Build SUCCESSFUL" ||
+        err "Build FAILURE"
+    rm .cbuild_prog.tmp
+}
+
+clean() {
+    rm -rf "${OBJDIR}"
+    chmod +w "${MAKEFILE}"
+    rm "${TARGET}" "${MAKEFILE}"
+}
+
+run() {
+    build
+	printf '\e[36;1mRunning\e[0m %s\n' "./${TARGET}"
+    "./${TARGET}"
+}
+
+dry_run() {
+    gen_makefile
+    export_vars
+    make -f "${MAKEFILE}" -e "${TARGET}" -n
+}
+
+__progress__() {
+    ntargets=$(cat .cbuild_prog.tmp)
+    export_vars
+    rtargets="$(make -f "${MAKEFILE}" -e "${TARGET}" -n | grep "^${CC}" | wc -l)"
+    targetno=$((${ntargets} - ${rtargets} + 1))
+    if [ "${1}" = "object" ]; then
+        printf '\e[35;1m[%3d/%d]\e[0m ' "${targetno}" "${ntargets}"
+        printf '\e[32mBuilding\e[0m '
+    elif [ "${1}" = "link" ]; then
+        printf '\e[36;1m[%3d/%d]\e[0m ' "${targetno}" "${ntargets}"
+        printf '\e[36;1mLinking\e[0m '
+    fi
+
+    echo "${2}"
+}
+case $1 in
+    build) build;;
+    clean) clean;;
+    buildcn) clean ; build;;
+    generate) gen_makefile && info "Done";;
+    run) run;;
+    dryrun) dry_run;;
+    __progress__) __progress__ "${2}" "${3}";;
+esac