Merge pull request #3 from codecrafters-io/CC-1274-c

Add support for C

Author: glokta1

compiled_starters/c/.gitattributes

@@ -0,0 +1 @@
+* text=auto

compiled_starters/c/README.md

@@ -0,0 +1,35 @@
+![progress-banner](https://codecrafters.io/landing/images/default_progress_banners/shell.png)
+
+This is a starting point for C solutions to the
+["Build Your Own Shell" Challenge](https://app.codecrafters.io/courses/shell/overview).
+
+In this challenge, you'll build your own POSIX compliant shell that's capable of
+interpreting shell commands, running external programs and builtin commands like
+cd, pwd, echo and more. Along the way, you'll learn about shell command parsing,
+REPLs, builtin commands, and more.
+
+**Note**: If you're viewing this repo on GitHub, head over to
+[codecrafters.io](https://codecrafters.io) to try the challenge.
+
+# Passing the first stage
+
+The entry point for your `shell` implementation is in `app/main.c`. Study and
+uncomment the relevant code, and push your changes to pass the first stage:
+
+```sh
+git add .
+git commit -m "pass 1st stage" # any msg
+git push origin master
+```
+
+Time to move on to the next stage!
+
+# Stage 2 & beyond
+
+Note: This section is for stages 2 and beyond.
+
+1. Ensure you have `c (9.2)` installed locally
+1. Run `./your_shell.sh` to run your program, which is implemented in
+   `app/main.c`.
+1. Commit your changes and run `git push origin master` to submit your solution
+   to CodeCrafters. Test output will be streamed to your terminal.

compiled_starters/c/app/main.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main() {
+  // You can use print statements as follows for debugging, they'll be visible when running tests
+  printf("Logs from your program will appear here!\n");
+
+  // Uncomment this block to pass the first stage
+  // printf("$ ");
+  // fflush(stdout);
+
+  // Wait for user input
+  char input[100];
+  fgets(input, 100, stdin);
+  return 0;
+}

compiled_starters/c/codecrafters.yml

@@ -0,0 +1,11 @@
+# Set this to true if you want debug logs.
+#
+# These can be VERY verbose, so we suggest turning them off
+# unless you really need them.
+debug: false
+
+# Use this to change the C version used to run your code
+# on Codecrafters.
+#
+# Available versions: c-9.2
+language_pack: c-9.2

compiled_starters/c/your_shell.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# DON'T EDIT THIS!
+#
+# CodeCrafters uses this file to test your code. Don't make any changes here!
+#
+# DON'T EDIT THIS!
+set -e
+tmpFile=$(mktemp)
+gcc app/*.c -o $tmpFile
+exec $tmpFile "$@"

course-definition.yml

@@ -20,6 +20,7 @@ languages:
   - slug: "python"
   - slug: "rust"
   - slug: "javascript"
+  - slug: "c"
 
 marketing:
   difficulty: medium

dockerfiles/c-9.2.Dockerfile

@@ -0,0 +1 @@
+FROM n0madic/alpine-gcc:9.2.0

solutions/c/01-oo8/code/.gitattributes

@@ -0,0 +1 @@
+* text=auto

solutions/c/01-oo8/code/README.md

@@ -0,0 +1,35 @@
+![progress-banner](https://codecrafters.io/landing/images/default_progress_banners/shell.png)
+
+This is a starting point for C solutions to the
+["Build Your Own Shell" Challenge](https://app.codecrafters.io/courses/shell/overview).
+
+In this challenge, you'll build your own POSIX compliant shell that's capable of
+interpreting shell commands, running external programs and builtin commands like
+cd, pwd, echo and more. Along the way, you'll learn about shell command parsing,
+REPLs, builtin commands, and more.
+
+**Note**: If you're viewing this repo on GitHub, head over to
+[codecrafters.io](https://codecrafters.io) to try the challenge.
+
+# Passing the first stage
+
+The entry point for your `shell` implementation is in `app/main.c`. Study and
+uncomment the relevant code, and push your changes to pass the first stage:
+
+```sh
+git add .
+git commit -m "pass 1st stage" # any msg
+git push origin master
+```
+
+Time to move on to the next stage!
+
+# Stage 2 & beyond
+
+Note: This section is for stages 2 and beyond.
+
+1. Ensure you have `c (9.2)` installed locally
+1. Run `./your_shell.sh` to run your program, which is implemented in
+   `app/main.c`.
+1. Commit your changes and run `git push origin master` to submit your solution
+   to CodeCrafters. Test output will be streamed to your terminal.

solutions/c/01-oo8/code/app/main.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+  printf("$ ");
+  fflush(stdout);
+
+  // Wait for user input
+  char input[100];
+  fgets(input, 100, stdin);
+  return 0;
+}

solutions/c/01-oo8/code/codecrafters.yml

@@ -0,0 +1,11 @@
+# Set this to true if you want debug logs.
+#
+# These can be VERY verbose, so we suggest turning them off
+# unless you really need them.
+debug: false
+
+# Use this to change the C version used to run your code
+# on Codecrafters.
+#
+# Available versions: c-9.2
+language_pack: c-9.2

solutions/c/01-oo8/code/your_shell.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# DON'T EDIT THIS!
+#
+# CodeCrafters uses this file to test your code. Don't make any changes here!
+#
+# DON'T EDIT THIS!
+set -e
+tmpFile=$(mktemp)
+gcc app/*.c -o $tmpFile
+exec $tmpFile "$@"

solutions/c/01-oo8/diff/app/main.c.diff

@@ -0,0 +1,18 @@
+@@ -1,15 +1,11 @@
+ #include <stdio.h>
+
+ int main() {
+-  // You can use print statements as follows for debugging, they'll be visible when running tests
+-  printf("Logs from your program will appear here!\n");
+-
+-  // Uncomment this block to pass the first stage
+-  // printf("$ ");
+-  // fflush(stdout);
++  printf("$ ");
++  fflush(stdout);
+
+   // Wait for user input
+   char input[100];
+   fgets(input, 100, stdin);
+   return 0;
+ }

solutions/c/01-oo8/explanation.md

@@ -0,0 +1,17 @@
+The entry point for your Shell implementation is in `app/main.c`.
+
+Study and uncomment the relevant code: 
+
+```c
+// Uncomment this block to pass the first stage
+printf("$ ");
+fflush(stdout);
+```
+
+Push your changes to pass the first stage:
+
+```
+git add .
+git commit -m "pass 1st stage" # any msg
+git push origin master
+```

starter-repository-definitions.yml

@@ -61,6 +61,23 @@
   template_attributes:
     required_executable: "go (1.19)"
     user_editable_file: "cmd/myshell/main.go"
+
+- language: c
+  file_mappings:
+    - source: starter_templates/README.md
+      target: README.md
+    - source: starter_templates/codecrafters.yml
+      target: codecrafters.yml
+    - source: starter_templates/c/your_shell.sh
+      target: your_shell.sh
+    - source: starter_templates/c/app/main.c
+      target: app/main.c
+    - source: starter_templates/.gitattributes
+      target: .gitattributes
+  template_attributes:
+    required_executable: "c (9.2)"
+    user_editable_file: "app/main.c"
+
 - language: javascript
   file_mappings:
     - source: starter_templates/README.md
@@ -81,4 +98,4 @@
       target: .gitignore
   template_attributes:
     required_executable: "node (21)"
-    user_editable_file: "app/main.js"
+    user_editable_file: "app/main.js"

starter_templates/c/app/main.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main() {
+  // You can use print statements as follows for debugging, they'll be visible when running tests
+  printf("Logs from your program will appear here!\n");
+
+  // Uncomment this block to pass the first stage
+  // printf("$ ");
+  // fflush(stdout);
+
+  // Wait for user input
+  char input[100];
+  fgets(input, 100, stdin);
+  return 0;
+}

starter_templates/c/your_shell.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# DON'T EDIT THIS!
+#
+# CodeCrafters uses this file to test your code. Don't make any changes here!
+#
+# DON'T EDIT THIS!
+set -e
+tmpFile=$(mktemp)
+gcc app/*.c -o $tmpFile
+exec $tmpFile "$@"

starter_templates/codecrafters.yml

@@ -19,7 +19,11 @@ language_pack: go-1.22
 # Available versions: rust-1.77
 language_pack: rust-1.77
 {{/ language_is_rust }}
+{{# language_is_c }}
+# Available versions: c-9.2
+language_pack: c-9.2
+{{/ language_is_c }}
 {{# language_is_javascript }}
 # Available versions: nodejs-21
 language_pack: nodejs-21
-{{/ language_is_javascript }}
+{{/ language_is_javascript }}