(C) QP2 - How to modify prompt line

Challenges
1

Repo link: https://github.com/yuriko192/codecrafters-shell-c

currently im trying to solve the challenge Builtin completion #qp2
but i kept receiving the error prompt line doesnt match expected value after tab is pressed

[tester::#QP2] Running tests for Stage #QP2 (Autocompletion - Builtin completion)
[tester::#QP2] Running ./your_program.sh
[tester::#QP2] ✓ Received prompt ($ )
[tester::#QP2] Typed "ech"
[tester::#QP2] ✓ Prompt line matches "$ ech"
[tester::#QP2] Pressed "<TAB>" (expecting autocomplete to "echo")
[your-program] $ ech
[tester::#QP2] Output does not match expected value.
[tester::#QP2] Expected: "$ echo "
[tester::#QP2] Received: "$ ech"
[tester::#QP2] Assertion failed.
[tester::#QP2] Test failed

so far, ive tried to enter rawmode to make sure the code is run on every keypress by using this logic in the file app/shell.c


void set_terminal_raw_mode() {
    struct termios new_settings;
    tcgetattr(STDIN_FILENO, &original_settings);
    new_settings = original_settings;
    new_settings.c_lflag &= ~(ICANON | ECHO);
    new_settings.c_cc[VMIN] = 1;
    new_settings.c_cc[VTIME] = 0;
    tcsetattr(STDIN_FILENO, TCSANOW, &new_settings);
}

and ive modified my input logic to the func void get_input(char **input) in app/main.c

my logic for initializing the autocomplete trie is in the file app/builtins.c with the func named void initialize_autocomplete()

5

Hey @yuriko192, looks like you’ve got past this stage. Do you happen to remember what was wrong? Would love to see if we can improve the tester / instructions.

7

nope, still stuck @andy1li i past the stage by trying another language

9

Hey @yuriko192, sorry for the delayed response!

The issue was due to your repo using an older Alpine-based buildpack. I’ve upgraded it to the latest version and pushed a commit to your repo. You can run git pull to get the latest changes.