Init

Signed-off-by: Ari Archer <ari.web.xyz@gmail.com>

.clang-format

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+---
+BasedOnStyle: LLVM
+IndentWidth: 4
+SortIncludes: false
+AlignConsecutiveAssignments: true
+AlignConsecutiveBitFields: true
+AlignConsecutiveMacros: true
+AlignEscapedNewlines: true
+AllowShortCaseLabelsOnASingleLine: true
+AllowShortEnumsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: true
+AllowShortLambdasOnASingleLine: true
+BinPackParameters: false
+IndentCaseBlocks: true
+IndentCaseLabels: true
+IndentExternBlock: true
+IndentGotoLabels: true
+---
+

.gitignore

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+/clrz
+.ccls-cache

LICENSE

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+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2022 Ari Archer <ari.web.xyz@gmail.com>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.
+

README.md

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+# Clrz
+
+> Fancy clear
+
+# Building
+
+Run any compilation script with your selected
+(or custom) environment(s)
+
+```bash
+$ . envs/reset.env && . envs/....
+$ ./com/....
+```
+
+Or if it's a script, directly use it
+
+# Versions
+
+- C (C99)
+- POSIX sh
+
+# License
+
+Do whatever the fuck you want lmfao

com/clrz.99.c.sh

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+#!/usr/bin/env sh
+
+set -e
+
+main() {
+    CC="${CC:-gcc}"
+    CFLAGS="${CFLAGS:--std=c99}"
+    SRC="${SRC:-./src/clrz.99.c}"
+    SFLAGS="${SFLAGS:--R .comment -R .GCC.command.line -R .note.gnu.gold-version -R .note.gnu.build-id -R .note.ABI-tag -R .note -R .gnu.version --strip-debug --strip-unneeded}"
+
+    {
+        echo ' * Compiling C code'
+        echo "   Source file:           $SRC"
+        echo "   C compiler:            $CC"
+        echo "   C Compiler Flags:      $CFLAGS"
+        echo "   Strip:                 ${STRIP:-No}"
+        echo "   Strip flags:           ${SFLAGS}"
+    } >&2
+
+    set -x
+    eval -- "$CC $SRC -o clrz $CFLAGS"
+    [ "$STRIP" ] && eval -- "strip $SFLAGS clrz"
+    set +x
+}
+
+main "$@"

envs/clang.env

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+export CC='clang'

envs/debug.env

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+export CFLAGS='-g -g3 -O0 -fno-eliminate-unused-debug-types -std=c99 -D_DEBUG'

envs/prod.env

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+export CFLAGS="-Ofast -std=c99 -s -flto -march=native \
+    -Wall -Wextra -Wpedantic -pedantic -pie -fPIE -Werror \
+    -Wconversion -Wsign-conversion \
+    -Wl,-z,relro,-z,now,-z,noexecstack"
+export STRIP='Yes'

envs/reset.env

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+unset CC CFLAGS STRIP

src/clrz.99.c

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+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 500
+#endif
+
+/* *************
+ * ANSI stuff
+ */
+
+#define CSI "\033["
+
+#define ANSI_CUR_SAVE CSI "s"
+#define ANSI_CUR_RES  CSI "u"
+#define ANSI_CUR_HIDE CSI "?25l"
+#define ANSI_CUR_SHOW CSI "?25h"
+
+#define ANSI_CLEAR CSI "2J" CSI "1;1H"
+
+#define NONL(code) fputs(code, stdout)
+
+/* *************
+ * Config
+ */
+
+#ifndef SLEEP_TIME
+#define SLEEP_TIME 15000
+#endif
+
+#ifdef _DEBUG
+#define DP(msg)                                                            \
+    fputs("[DEBUG] " msg "\n        Press enter to continue....", stderr); \
+    getchar();
+#else
+#define DP(msg)
+#endif
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+static unsigned char clrz(void) {
+    DP("Getting terminal size");
+
+    struct winsize ws;
+    if (ioctl(1, TIOCGWINSZ, &ws) != 0) {
+        perror("ioctl()");
+        return 1;
+    }
+
+    DP("Making a column");
+
+    char col[ws.ws_col];
+
+    for (unsigned short int idx = 0; idx < ws.ws_col; ++idx)
+        col[idx] = ' ';
+
+    DP("Setting up cursor");
+
+    NONL(ANSI_CUR_HIDE);
+    NONL(ANSI_CUR_SAVE);
+
+    DP("Filling up columns");
+
+    for (unsigned short int line = 0; line < ws.ws_row; ++line) {
+        printf(CSI "%d;%dH", line, 0); // ANSI_CUP
+        NONL(col);
+
+#ifndef HAVE_BUFFERING
+        fflush(stdout);
+#endif
+        usleep(SLEEP_TIME);
+    }
+
+    DP("Cleanup");
+
+    NONL(ANSI_CUR_RES);
+    NONL(ANSI_CLEAR);
+    NONL(ANSI_CUR_SHOW);
+
+    return 0;
+}
+
+#ifndef CLRZ_H
+int main(void) { return clrz(); }
+#endif

src/clrz.sh

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+#!/usr/bin/env sh
+
+set -e
+
+main() {
+    tput civis
+    printf "\033[s"
+
+    for line in 0 $(seq "$(tput lines)"); do
+        for col in 0 $(seq "$(tput cols)"); do
+            tput cup "$line" "$col"
+            printf ' '
+        done
+    done
+
+    printf "\033[u"
+    clear
+
+    tput cnorm
+}
+
+main "$@"