Help

Makefile

@@ -0,0 +1,7 @@
+all: git-help
+
+git-help: git-help.o
+
+.PHONY: clean
+clean:
+	-rm -f git-help git-help.o

README.md

@@ -1,18 +1,23 @@
-# Welcome the git tutorial Introduction!
-This tutorial aims to teach you how to use `git` in an efficient manner for
-your projects.  This guide does not focus on `git` commands,  but rather on
-the things you need to do in order to write code in an easy to maintain
-fashion.
+# Welcome the git help tutorial!
+The `git-help` tool found in this repository can be ran to find out more
+information about git commands.
 
-## Identity
-When using `git` for the first time, the first step you need to do is to
-identify yourself, so that whoever is interested in the portion of code you
-wrote, they can easily reach you for further questions.  In order to identify
-yourself, you need to specify your name and email address to the `git` engine.
-This is intuitively done using the `git config` command:
+## Compile
+You can compile the program using the `Makefile` in this project:
 ```
-git config --global user.name "YOUR NAME"
-git config --global user.email "YOUR@EMAIL.ADDRESS"
+make
+```
+will generate the `git-help` executable.
+
+## Usage
+When ran without parameters, the program returns the man page of the main git
+command:
+```
+./git-help
+```
+
+The program can also receive a parameter that indicates which command we want
+to get more information about:
+```
+./git-help commit
 ```
-Run these commands on your local computer; make sure you use a valid name and
-email address!

git-help.c

@@ -0,0 +1,41 @@
+/*
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+int main(int argc, char **argv)
+{
+	char *cmd;
+	if (argc > 2) {
+		fprintf(stderr, "Usage: %s [command]\n", argv[0]);
+		exit(-1);
+	}
+
+	if (argc == 1)
+		system("man git");
+	else {
+		cmd = malloc(9 + strlen(argv[argc]));
+		if (!cmd) {
+			fprintf(stderr, "not enought memory to create command!\n");
+			exit(-1);
+		}
+		strcpy(cmd, "man git-");
+		strcat(cmd, argv[argc]);
+		system(cmd);
+	}
+
+	return 0;
+}