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coded the vault and note selector

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Tomas Rivera
2026-03-29 17:52:40 +02:00
parent 2883321d37
commit d494159a58
3 changed files with 174 additions and 22 deletions
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a.out
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shell.nix
+1
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@@ -4,6 +4,7 @@ pkgs.mkShell {
buildInputs = [
pkgs.vivify
pkgs.cjson
pkgs.ncurses
pkgs.pkg-config
];
}
startup.c
+171 -20
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@@ -1,8 +1,150 @@
//gcc startup.c $(pkg-config --cflags --libs libcjson ncurses)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cjson/cJSON.h>
#include <dirent.h>
#include <sys/stat.h>
#include <limits.h> // for PATH_MAX
#include <ncurses.h>
char** getVaultsFromDirectory(char *dirString, size_t *count) {
// (TODO LATER) it might be a good idea to check if these directories exist
// (TODO LATER) expand ~ as it does not work with opendir()
// this function is inputed a path to a directory (which comes usually from the config file) and outpus all the suitable directories (so not the hidden ones) which will serve as separate vaults for notes
printf("Opening %s aka the directory of vaults\n", dirString);
// originally from https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
struct dirent *vaultsDirectoryEntry;
DIR *vaultsDirectory = opendir(dirString);
if (vaultsDirectory == NULL) // opendir returns NULL if couldn't open directory
{
printf("Could not open current directory" );
exit(1); //something is fucked up
}
char **dirsArray = NULL; // will contain all the dirs/vaults
size_t dirsCount = 0; // we need to count how many dirs there is to always readjust how many memory we alloc
// Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
// for readdir()
while ((vaultsDirectoryEntry = readdir(vaultsDirectory)) != NULL) {
printf("%s\n", vaultsDirectoryEntry->d_name); // debugs every file/directory
if (vaultsDirectoryEntry->d_name[0] != '.') { // if the entry don't start with a dot (so hidden dirs and hidden files)
char fullPathEntry[PATH_MAX]; // creates a string of size of the maximum path lenght
snprintf(fullPathEntry, sizeof(fullPathEntry), "%s/%s", dirString, vaultsDirectoryEntry->d_name); // sets the full absolute path to fullPathEntry
struct stat metadataPathEntry;
if (stat(fullPathEntry, &metadataPathEntry) == 0 && S_ISDIR(metadataPathEntry.st_mode)) { // if this entry is a directory
dirsArray = realloc(dirsArray, (dirsCount + 1)*sizeof(char*)); // resize dirsArray so that
dirsArray[dirsCount] = strdup(vaultsDirectoryEntry->d_name); // copy the dir name into dirsArray
dirsCount++;
}
}
}
// (TODO LATER) Alphabetically sort them
// free's some used memory
closedir(vaultsDirectory);
*count = dirsCount;
return dirsArray;
}
char** getNotesFromVault(char *pathToVault, char *vault, int *count) {
// this function is inputed a path to a vault (which was selected before) and outpus all the suitable notes (so not the hidden ones)
printf("Opening %s aka the vault\n", vault);
// originally from https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
struct dirent *notesDirectoryEntry;
char tempPath[PATH_MAX];
snprintf(tempPath, sizeof(tempPath), "%s/%s", pathToVault, vault); // sets the full absolute path to fullPathEntry
DIR *vaultDirectory = opendir(tempPath);
if (vaultDirectory == NULL) // opendir returns NULL if couldn't open directory
{
printf("Could not open current directory" );
exit(1); //something is fucked up
}
char **notesArray = NULL; // will contain all the notes
size_t notesCount = 0; // we need to count how many notes there is to always readjust how many memory we alloc
// Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
// for readdir()
while ((notesDirectoryEntry = readdir(vaultDirectory)) != NULL) {
printf("%s\n", notesDirectoryEntry->d_name); // debugs every note
if (notesDirectoryEntry->d_name[0] != '.') { // if the entry don't start with a dot (so hidden dirs and hidden files)
char fullPathEntry[PATH_MAX]; // creates a string of size of the maximum path lenght
snprintf(fullPathEntry, sizeof(fullPathEntry), "%s/%s/%s", pathToVault, vault, notesDirectoryEntry->d_name); // sets the full absolute path to fullPathEntry
struct stat metadataPathEntry;
if (stat(fullPathEntry, &metadataPathEntry) == 0 && !S_ISDIR(metadataPathEntry.st_mode)) { // if this entry is a file
notesArray = realloc(notesArray, (notesCount + 1)*sizeof(char*)); // resize notesArray so that
notesArray[notesCount] = strdup(notesDirectoryEntry->d_name); // copy the dir name into notesArray
notesCount++;
}
}
}
// (TODO LATER) Alphabetically sort them
// free's some used memory
closedir(vaultDirectory);
*count = notesCount; // passes the number of files
return notesArray;
}
char* ncursesSelect(char **options, char *optionsType, size_t optionsNumber) { // this fonction make a TUI to select one of multiple options.
int highlight = 0; //curently highlighted option
int choice = 1; //selected index
int key;
initscr(); //initialize ncurses
cbreak(); // disable line buffering
noecho(); // don't echo key presses
keypad(stdscr, TRUE); // enable arrow keys
while (1) {
clear();
mvprintw(0,0, "Select %s (Use arrows or WASD, Enter to select):", optionsType);
// Print options with highlighting
for(int i = 0; i < optionsNumber; i++) {
if (i == highlight) {
attron(A_REVERSE);
} // highlight selected
mvprintw(i+2, 2, "%s", options[i]);
if (i == highlight) {
attroff(A_REVERSE);
}
}
key = getch(); //get some int which value correspond to some key being pressed
switch(key) {
case KEY_UP:
case 'w':
case 'W':
highlight--;
if (highlight < 0) {
highlight = optionsNumber - 1;// can't select the -1nth option
}
break;
case 's':
case 'S':
case KEY_DOWN:
highlight++;
if (highlight >= optionsNumber) {
highlight = 0;
}
break;
case 10: //\n
choice = highlight;
goto end_loop;
}
}
end_loop:
endwin(); // end ncurses mode
return options[choice];
}
int compareString(const void *a, const void *b) { // this will be the function used by qsort
const char *str1 = *(const char **)a;
const char *str2 = *(const char **)b;
return strcmp(str1, str2); // strcmp returns <0, 0, >0
}
int main() {
// Read config file
@@ -44,33 +186,42 @@ int main() {
} else {
notesDirectoryString = "~/Documents/Notes/"; // default
}
// (TODO LATER) it might be a good idea to check if these directories exist
// (TODO LATER) expand ~ as it does not work with opendir()
printf("Opening %s\n", notesDirectoryString);
//---------------------------------------------------------------------------------------
// https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
struct dirent *notesDirectoryEntry;
DIR *notesDirectory = opendir(notesDirectoryString);
if (notesDirectory == NULL) // opendir returns NULL if couldn't open directory
{
printf("Could not open current directory" );
return 1;
size_t vaultsCount = 0;
char **vaultsArray = getVaultsFromDirectory(notesDirectoryString, &vaultsCount);
qsort(vaultsArray, vaultsCount, sizeof(const char *), compareString); // sorts the vaults alphabetically
printf("Available vaults:\n");
for (size_t i = 0; i < vaultsCount; i++) {
printf("%s\n", vaultsArray[i]);
}
// Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
// for readdir()
while ((notesDirectoryEntry = readdir(notesDirectory)) != NULL)
printf("%s\n", notesDirectoryEntry->d_name);
// adds "create a new vault" into the vaultsArray
// (TODO LATER) maybe add an option for setting
const int extraOptions = 2;
vaultsArray = realloc(vaultsArray, (vaultsCount + extraOptions)*sizeof(char*)); // resize dirsArray so that
// (TODO LATER) add a way to Colorize the extraOptions
vaultsArray[vaultsCount] = "Create a new vault"; // some more options that are not vaults
vaultsArray[vaultsCount+1] = "Settings";
// select a vault
char *vaultSelected = ncursesSelect(vaultsArray, "vault", vaultsCount + extraOptions);
printf("Selected vault:%s\n", vaultSelected);
//--------------------------------------------------------------------------------------
if (vaultSelected != "Create a new vault" || vaultSelected != "Settings") {
int filesCount = 0;
char **filesArray = getNotesFromVault(notesDirectoryString, vaultSelected, &filesCount);
qsort(filesArray, filesCount, sizeof(const char *), compareString); // sorts the notes alphabetically
//
printf("Available notes:\n");
for (size_t i = 0; i < filesCount; i++) {
printf("%s\n", filesArray[i]);
}
} else if (vaultSelected == "Create a new vault") {
// list all the directories (except hidden ones). They are like obsidian vaults
} else if (vaultSelected == "Settings") {
//(TODO LATER) add a way to change the config.json from the app or at least show all the options
}
// Cleanup
if (dirJsonFormat && notesDirectoryString != dirJsonFormat->valuestring) free(notesDirectoryString); // only free strdup
closedir(notesDirectory);
cJSON_Delete(json);
free(data);