Push 1.0

.gitignore

@@ -0,0 +1 @@
+build

README.md

@@ -1,2 +1,13 @@
 # bzip2_exec
 C program for translating each file in a directory to bz2.
+
+Requirements:
+------------
+For build
+```
+sudo apt install clang
+```
+For working
+```
+sudo apt install bzip2
+```

build.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if ! [ -e ./build/ ]; then
+	mkdir ./build/;
+fi
+
+clang main.c -o ./build/bz2_exec && echo "Build successful";

main.c

@@ -0,0 +1,105 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <dirent.h>
+#include <string.h>
+
+static const char g_sProgramName[] = "bzip2_exec",
+                  g_sProgramDescription[] = "converts each file to bz2 in directories",
+                  g_sProgramVersion[] = "1.0",
+                  g_sProgramBuildDate[] = __DATE__;
+
+int PrintHelpInformation(const char *sExecFile)
+{
+	return printf("%s, a %s. Version %s, %s\n\n\tusage: %s [bzip2 args, by default -9] [directory to work, by default current directory]\n\n", g_sProgramName, g_sProgramDescription, g_sProgramVersion, g_sProgramBuildDate, sExecFile);
+}
+
+int ReadDir(const char *sDirPath, const char *sIgnore, const char *sCompression)
+{
+	DIR *pDir = opendir(sDirPath);
+
+	if(pDir)
+	{
+		struct dirent *pEnt;
+
+		while((pEnt = readdir(pDir)))
+		{
+			char iElementType = pEnt->d_type;
+
+			const char *sElementName = pEnt->d_name;
+
+			char sNewDir[1024];
+
+			int iLength = strlen(sDirPath);
+
+			if(iLength)
+			{
+				sprintf(sNewDir, sDirPath[iLength - 1] == '/' ? "%s%s" : "%s/%s", sDirPath, sElementName);
+			}
+			else
+			{
+				sprintf(sNewDir, "./%s", sElementName);
+			}
+
+			if(iElementType & (1 << 2))		// Is dir.
+			{
+				if(strcmp(sElementName, ".") && strcmp(sElementName, ".."))
+				{
+					ReadDir(sNewDir, "", sCompression);
+				}
+			}
+			else if(iElementType & (1 << 3) && strcmp(sElementName, sIgnore))		// Is file.
+			{
+				/* I was too lazy to do it at a low level BZip2 API :P */
+
+				char sSysCommand[256];
+
+				sprintf(sSysCommand, "/bin/bzip2 %s \"%s\"\n", sCompression, sNewDir);
+
+				if(!system(sSysCommand))
+				{
+					printf("%s -> %s.bz2\n", sElementName, sElementName);
+				}
+			}
+		}
+
+		closedir(pDir);
+	}
+	else
+	{
+		/* Could not open directory. */
+
+		char sErrorMessage[256];
+
+		sprintf(sErrorMessage, "Failed the open \"%s\"\n", sDirPath);
+		perror(sErrorMessage);
+
+		return 1;
+	}
+
+	return 0;
+}
+
+int main(int iArgs, const char **psArgs)
+{
+	bool bIsArgsLessThanTwo = iArgs > 1;
+
+	int  iResult;		// aka EAX
+
+	if(bIsArgsLessThanTwo && (!strcmp(psArgs[1], "-h") || !strcmp(psArgs[1], "-V") || !strcmp(psArgs[1], "--help") || !strcmp(psArgs[1], "--version")))
+	{
+		iResult = PrintHelpInformation(psArgs[0]);
+	}
+	else
+	{
+		const char *sIgnore = strrchr(psArgs[0], '/');
+
+		sIgnore = sIgnore ? &sIgnore[1] : psArgs[0];
+
+		printf("Ignore \"%s\"\n", sIgnore);
+
+		iResult = ReadDir(iArgs > 2 && psArgs[2] ? psArgs[2] : "./", sIgnore, bIsArgsLessThanTwo && psArgs[1] ? psArgs[1] : "-9");
+	}
+
+	return iResult;
+}