From fdf63d294ecd594340e87f70b15d628121f3172b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C4=83zvan=20Tudor=20CRAINEA?=
 <razvan.crainea@stud.acs.upb.ro>
Date: Sat, 17 Mar 2018 02:14:06 +0200
Subject: [PATCH 1/3] Add initial version of git-help.c

---
 Makefile   |  7 +++++++
 README.md  | 35 ++++++++++++++++++++---------------
 git-help.c | 29 +++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+), 15 deletions(-)
 create mode 100644 Makefile
 create mode 100644 git-help.c

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..9aad4ee
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,7 @@
+all: git-help
+
+git-help: git-help.o
+
+.PHONY: clean
+clean:
+	-rm -f git-help git-help.o
diff --git a/README.md b/README.md
index 3e1acaf..b00aef4 100644
--- a/README.md
+++ b/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!
diff --git a/git-help.c b/git-help.c
new file mode 100644
index 0000000..48ac005
--- /dev/null
+++ b/git-help.c
@@ -0,0 +1,29 @@
+/*
+ * 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 > 1) {
+		fprintf(stderr, "Usage: %s\n", argv[0]);
+		exit(-1);
+	}
+
+	system("man git");
+	return 0;
+}

From 510a79a6d61d0517ea9fe68311eda166551dcf15 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C4=83zvan=20Tudor=20CRAINEA?=
 <razvan.crainea@stud.acs.upb.ro>
Date: Sat, 17 Mar 2018 12:45:07 +0200
Subject: [PATCH 2/3] Add parameter support for different git commands

---
 git-help.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/git-help.c b/git-help.c
index 48ac005..3bbff26 100644
--- a/git-help.c
+++ b/git-help.c
@@ -19,11 +19,23 @@
 int main(int argc, char **argv)
 {
 	char *cmd;
-	if (argc > 1) {
-		fprintf(stderr, "Usage: %s\n", argv[0]);
+	if (argc > 2) {
+		fprintf(stderr, "Usage: %s [command]\n", argv[0]);
 		exit(-1);
 	}
 
-	system("man git");
+	if (argc == 1)
+		system("man git");
+	else {
+		cmd = malloc(7 + 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;
 }

From 02a28f8ca48eceee206303f6f1f63c87b54e51f1 Mon Sep 17 00:00:00 2001
From: Razvan Crainea <razvan@opensips.org>
Date: Sat, 7 Mar 2020 11:25:16 +0200
Subject: [PATCH 3/3] Fix missing null termination space

---
 git-help.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/git-help.c b/git-help.c
index 3bbff26..5cd7ab1 100644
--- a/git-help.c
+++ b/git-help.c
@@ -27,7 +27,7 @@ int main(int argc, char **argv)
 	if (argc == 1)
 		system("man git");
 	else {
-		cmd = malloc(7 + strlen(argv[argc]));
+		cmd = malloc(9 + strlen(argv[argc]));
 		if (!cmd) {
 			fprintf(stderr, "not enought memory to create command!\n");
 			exit(-1);