refactor

1 files changed, 0 insertions, 552 deletions

diff --git a/src/commands/ls.c b/src/commands/ls.c
deleted file mode 100644
index e8d58d0..0000000
--- a/src/commands/ls.c
+++ /dev/null
@@ -1,552 +0,0 @@
-#include "../command.h"
-
-#include <grp.h>
-#include <pwd.h>
-#include <dirent.h>
-#include <ftw.h>
-#include <limits.h>
-#include <string.h>
-
-#define FILE_COLOR      ANSCII BLACK COLOR
-#define DIR_COLOR       ANSCII BOLD NEXT NORMAL BLUE COLOR
-#define DIR_COLOR_EXEC  ANSCII BACKGROUND GREEN  NEXT NORMAL BLACK COLOR
-#define LINK_COLOR      ANSCII BOLD NEXT NORMAL TURQUOISE COLOR
-#define SET_UID_COLOR   ANSCII BACKGROUND RED NEXT NORMAL WHITE COLOR
-#define SET_GID_COLOR   ANSCII BACKGROUND YELLOW NEXT NORMAL BLACK COLOR
-#define EXEC_COLOR      ANSCII BOLD NEXT NORMAL GREEN COLOR
-#define BLK_COLOR       ANSCII BOLD NEXT NORMAL YELLOW COLOR
-#define SOCK_COLOR      ANSCII BOLD NEXT NORMAL MAGENTA COLOR
-
-static struct {
-    bool hidden;
-    bool hide_dot;
-    bool more_info;
-    bool one_column;
-    bool recurse;
-    enum When colored;
-} flags;
-
-struct FileInfo {
-    struct passwd* usr;
-    struct group* grp;
-    char* name;
-    char date[13];
-    char mode[11];
-    char size[5];
-    int links;
-    int bytes;
-    bool set_uid;
-    bool set_gid;
-    bool exec;
-    unsigned char type;
-};
-
-struct FileListInfo {
-    int max_link;
-    int max_usr;
-    int max_grp;
-    int max_size;
-    int max_name;
-    int total_len;
-    int total_size;
-};
-
-static DIR* get_directory(char* path) {
-    DIR* d = opendir(path);
-    if (d == NULL) {
-        if (errno == ENOTDIR) {
-            error_s("`%s` is a a file\n", path);
-        } else {
-            error_s("failed to open directory '%s': %s\n", path, strerror(errno));
-        }
-    }
-    return d;
-}
-
-static bool get_file_info(const char* file_name, struct FileInfo* info) {
-
-    uid_t uid;
-    gid_t gid;
-    int save, ty;
-    struct stat s;
-    size_t file_len;
-
-    uid = getuid();
-    gid = getgid();
-
-    memset(&s, 0, sizeof(struct stat));
-
-    save = push_path_buffer(file_name);
-
-    if (lstat(get_path_buffer(), &s) < 0) {
-        error_s("failed to read file '%s': %s\n", get_path_buffer(), strerror(errno));
-        pop_path_buffer(save);
-        return false;
-    }
-
-    ty = (s.st_mode & S_IFMT) >> 12;
-    
-    info->set_uid = false;
-    info->set_gid = false;
-    info->exec = false;
-
-    switch (ty) {
-        case DT_BLK:
-            info->mode[0] = 'b';
-            break;
-        case DT_CHR:
-            info->mode[0] = 'c';
-            break;
-        case DT_DIR:
-            info->mode[0] = 'd';
-            break;
-        case DT_FIFO:
-            info->mode[0] = 'f';
-            break;
-        case DT_LNK:
-            info->mode[0] = 'l';
-            break;
-        case DT_SOCK:
-            info->mode[0] = 's';
-            break;
-        case DT_UNKNOWN:
-            info->mode[0] = 'u';
-            break;
-        case DT_WHT:
-            info->mode[0] = 'w';
-            break;
-        default:
-            info->mode[0] = '-';
-            break;
-    }
-    
-    info->mode[1] = (s.st_mode & S_IRUSR) ? 'r' : '-';
-    info->mode[2] = (s.st_mode & S_IWUSR) ? 'w' : '-';
-    if (s.st_mode & S_IXUSR) {
-        if (s.st_mode & S_ISUID) {
-            info->mode[3] = 's';
-            info->set_uid = true;
-        } else {
-            info->mode[3] = 'x';
-        }
-        if (!info->exec) info->exec = s.st_uid == uid;
-    } else {
-        info->mode[3] = '-';
-    }
-
-    info->mode[4] = (s.st_mode & S_IRGRP) ? 'r' : '-';
-    info->mode[5] = (s.st_mode & S_IWGRP) ? 'w' : '-';
-    if (s.st_mode & S_IXGRP) {
-        if (s.st_mode & S_ISGID) {
-            info->mode[6] = 's';
-            info->set_gid = true;
-        } else {
-            info->mode[6] = 'x';
-        }
-        if (!info->exec) info->exec = s.st_gid == gid;
-    } else {
-        info->mode[6] = '-';
-    }
-
-    info->mode[7] = (s.st_mode & S_IROTH) ? 'r' : '-';
-    info->mode[8] = (s.st_mode & S_IWOTH) ? 'w' : '-';
-    if (s.st_mode & S_IXOTH) {
-        info->mode[9] = 'x';
-        info->exec = true;
-    } else {
-        info->mode[9] = '-';
-    }
-
-    info->mode[10] = '\0';
-
-    info->usr = getpwuid(s.st_uid);
-    if (info->usr == NULL) {
-        error_s("failed to get user from `%s`\n", get_path_buffer());
-        pop_path_buffer(save);
-        return false;
-    }
-
-    info->grp = getgrgid(s.st_gid);
-    if (info->grp == NULL) {
-        error_s("failed to get user from `%s`\n", get_path_buffer());
-        pop_path_buffer(save);
-        return false;
-    }
-
-    info->links = s.st_nlink;
-    info->type = ty;
-
-    file_len = strlen(file_name) + 1;
-    info->name = malloc(file_len);
-    memcpy(info->name, file_name, file_len);
-
-    print_file_size(s.st_size, info->size);
-    print_date_time(s.st_mtim.tv_sec + s.st_mtim.tv_nsec / 1000000000, info->date);
-
-    info->bytes = (s.st_size + s.st_blksize - 1) / s.st_blksize;
-
-    pop_path_buffer(save);
-    return true;
-}
-
-static char* get_file_color(struct FileInfo* info) {
-    char* color;
-    if (info->type == DT_DIR) {
-        if (info->mode[8] == 'w') {
-            color = DIR_COLOR_EXEC;
-        } else {
-            color = DIR_COLOR;
-        }
-    } else if (info->type == DT_LNK) {
-        color = LINK_COLOR;
-    } else if (info->type == DT_SOCK) {
-        color = SOCK_COLOR;
-    } else if (
-        info->type == DT_CHR || 
-        info->type == DT_BLK
-    ) {
-        color = BLK_COLOR;
-    } else {
-        if (info->set_uid) {
-            color = SET_UID_COLOR;
-        } else if (info->set_gid) {
-            color = SET_GID_COLOR;
-        } else if (info->exec) {
-            color = EXEC_COLOR;
-        } else {
-            color = FILE_COLOR;
-        }
-    }
-    return color;
-}
-
-static void list_files(struct FileInfo* files, int file_len, struct FileListInfo info) {
-    
-    struct winsize w;
-    char* color;
-    int column_width, row_count, i;
-
-    if (flags.more_info) {
-        char total[13];
-        print_file_size(info.total_size, total);
-        printf("total %s\n", total);
-    }
-
-    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
-
-    if (!isatty(1)) {
-        flags.one_column = true;
-        if (flags.colored == AUTO)
-            flags.colored = NO;
-    }
-
-    column_width = info.max_name + 1;
-    row_count = w.ws_col / column_width;
-
-    for (i = 0; i < file_len; i++) {
-        struct FileInfo finfo = files[i];
-        color = get_file_color(&finfo);
-        if (flags.more_info) {
-            printf("%s %*d %*s %*s %*s %s %s%s%s", 
-                finfo.mode, 
-                info.max_link,
-                finfo.links,
-                info.max_usr,
-                finfo.usr->pw_name,
-                info.max_grp,
-                finfo.grp->gr_name, 
-                info.max_size,
-                finfo.size, 
-                finfo.date,
-                flags.colored != NO ? color : "",
-                finfo.name,
-                flags.colored != NO ? "\x1b[0m" : ""
-            );
-            if (finfo.type == DT_LNK) {
-                int save = push_path_buffer(finfo.name);
-
-                char lnk[PATH_MAX];
-                ssize_t n;
-                if ((n = readlink(get_path_buffer(), lnk, PATH_MAX)) != -1) {
-                    printf(" -> %.*s\n", (int)n, lnk);
-                } else {
-                    putchar('\n');
-                }
-
-                pop_path_buffer(save); 
-            } else {
-                putchar('\n');
-            }
-        } else if (flags.one_column) {
-            printf("%s%s%s\n", flags.colored != NO ? color : "", finfo.name, flags.colored != NO ? "\x1b[0m" : "");
-        } else {
-            if (info.total_len > w.ws_col) {
-                if (i != 0 && i % row_count == 0) putchar('\n');
-                printf("%s%*s%s", flags.colored != NO ? color : "", -column_width, 
-                       finfo.name, flags.colored != NO ? "\x1b[0m" : "");
-            } else {
-                printf("%s%s%s  ", flags.colored != NO ? color : "", finfo.name,
-                       flags.colored != NO ? "\x1b[0m" : "");
-            }
-        }
-        free(finfo.name);
-    }
-
-    if (!flags.more_info) printf("\n");
-}
-
-static int num_places (int n) {
-    int r = 1;
-    if (n < 0) n = (n == INT_MIN) ? INT_MAX: -n;
-    while (n > 9) {
-        n /= 10;
-        r++;
-    }
-    return r;
-}
-
-static void push_file(
-    struct FileInfo** files, 
-    struct FileListInfo* info, 
-    int* size, int* capacity, 
-    const char* file_path 
-) {
-    struct FileInfo finfo;
-    int user_len, group_len, name_len, size_len, link_len;
-
-    if (!get_file_info(file_path, &finfo)) return;
-
-    if (*size == *capacity) {
-        *capacity *= 2;
-        *files = realloc(*files, sizeof(struct FileInfo) * *capacity);
-    }
-    
-    user_len = strlen(finfo.usr->pw_name);
-    if (user_len > info->max_usr) info->max_usr = user_len;
-
-    group_len = strlen(finfo.grp->gr_name);
-    if (group_len > info->max_grp) info->max_grp = group_len;
-
-    name_len = strlen(file_path);
-    if (name_len > info->max_name) info->max_name = name_len;
-
-    size_len = strlen(finfo.size);
-    if (size_len > info->max_size) info->max_size = size_len;
-
-    link_len = num_places(finfo.links);
-    if (link_len > info->max_link) info->max_link = link_len;
-
-    info->total_len += name_len + 2;
-    info->total_size += finfo.bytes;
-
-    (*files)[*size] = finfo;
-    (*size)++;
-}
-
-static void recurse_directory(char* dir_name) {
-    DIR* d;
-    int capacity, size, save;
-    struct dirent* file;
-    struct FileInfo* files;
-    struct FileListInfo info;
-
-    save = push_path_buffer(dir_name);
-
-    d = get_directory(get_path_buffer());
-    if (d == NULL) {
-        return;
-    }
-
-    capacity = 8;
-    size = 0;
-    
-    files = malloc(sizeof(struct FileInfo) * capacity);
-    memset(&info, 0, sizeof(struct FileListInfo));
-
-    while((file = readdir(d)) != NULL) {
-        if (!flags.hidden && prefix(".", file->d_name)) continue;
-        if (flags.hide_dot && is_dot_dir(file->d_name)) continue;
-        if (file->d_type == DT_DIR && !is_dot_dir(file->d_name)) {
-            recurse_directory(file->d_name);
-        } else {
-            push_file(&files, &info, &size, &capacity, file->d_name);
-        }
-    }
-
-
-    if (flags.colored == NO) {
-        printf("\n%s:\n", get_path_buffer());
-    } else {
-        printf("\n%s%s:%s\n", DIR_COLOR, get_path_buffer(), FILE_COLOR);
-    }
-
-    list_files(files, size, info);
-
-    free(files);
-
-    if (!flags.more_info) printf("\n");
-
-    closedir(d);
-
-    pop_path_buffer(save);
-}
-
-static void list_directory(char* path) {
-
-    DIR* d;
-    int capacity, size, save;
-    struct FileInfo* files;
-    struct FileListInfo info;
-    struct dirent* file;
-
-    if (flags.recurse) {
-        recurse_directory(path);
-        return;
-    }
-
-    d = get_directory(path);
-    if (d == NULL) return;
-
-    save = push_path_buffer(path);
-
-    capacity = 8;
-    size = 0;
-    
-    files = malloc(sizeof(struct FileInfo) * capacity);
-    memset(&info, 0, sizeof(struct FileListInfo));
-    
-    while ((file = readdir(d)) != NULL) {
-        if (!flags.hidden && prefix(".", file->d_name)) continue;
-        if (flags.hide_dot && is_dot_dir(file->d_name)) continue;
-        push_file(&files, &info, &size, &capacity, file->d_name);
-    }
-
-    if (size > 0) list_files(files, size, info);
-    free(files);
-
-    pop_path_buffer(save);
-
-    closedir(d);
-}
-
-static bool is_dir(const char* path) {
-    struct stat s;
-    if (stat(path, &s) < 0) return false;
-    return S_ISDIR(s.st_mode);
-}
-
-static void list_file_args(int start, int argc, char** argv) {
-
-    int capacity, size, i;
-    struct FileInfo* files;
-    struct FileListInfo info;
-
-    capacity = 8;
-    size = 0;
-    
-    files = malloc(sizeof(struct FileInfo) * capacity);
-    memset(&info, 0, sizeof(struct FileListInfo));
-    
-    for (i = start; i < argc; i++) {
-        if (is_dir(argv[i])) continue;
-        push_file(&files, &info, &size, &capacity, argv[i]);
-    }
-    
-    if (size > 0) list_files(files, size, info);
-
-    free(files);
-}
-
-static void help(void) {
-    printf("Usage: ls [FILE]...\n\n");
-    printf("List directory contents\n\n");
-    printf("\t-1\tOne column output\n");
-    printf("\t-l\tLong format\n");
-    printf("\t-a\tInclude names starting with .\n");
-    printf("\t-A\tLike -a but without . and ..\n");
-    printf("\t-R\tRecurse\n");
-}
-
-static int short_arg(char c, char* next) {
-    UNUSED(next);
-    switch (c) {
-        case 'R':
-            flags.recurse = true;
-            break;
-        case '1':
-            flags.one_column = true;
-            break;
-        case 'A':
-            flags.hide_dot = true;
-            flags.hidden = true;
-            break;
-        case 'a':
-            flags.hidden = true;
-            break;
-        case 'l':
-            flags.more_info = true;
-            break;
-        default:
-            return ARG_INVALID;
-    }
-    return ARG_UNUSED;
-}
-
-static int long_arg(char* cur, char* next) {
-    UNUSED(next);
-    if (prefix("--color=", cur)) {
-        char* arg = cur + 8;
-        if (streql("yes", arg) || streql("always", arg)) {
-            flags.colored = YES;
-        } else if (streql("auto", arg)) {
-            flags.colored = AUTO;
-        } else if (streql("no", arg) || streql("never", arg)) {
-            flags.colored = NO;
-        } else {
-            error("invalid color options: %s", arg);
-        }
-    } else {
-        return ARG_IGNORE;
-    }
-    return ARG_UNUSED;
-}
-
-COMMAND(ls) {
-
-    int start, i;
-    bool titled;
-
-    flags.hidden = false;
-    flags.more_info = false;
-    flags.hide_dot = false;
-    flags.one_column = false;
-    flags.recurse = false;
-    flags.colored = NO;
-
-    start = parse_args(argc, argv, help, short_arg, long_arg);
-
-    if (argc - start == 0) {
-        list_directory(".");
-        return EXIT_SUCCESS;
-    }
-
-    list_file_args(start, argc, argv); 
-
-    titled = argc - start > 1;
-    for (i = start; i < argc; i++) {
-
-        if (!is_dir(argv[i])) continue;
-        
-        if (titled && !flags.recurse) {
-            if (flags.colored != NO) {
-                printf("\n%s%s:%s\n", DIR_COLOR, argv[i], FILE_COLOR);
-            } else {
-                printf("\n%s:\n", argv[i]);
-            }
-        }
-
-        list_directory(argv[i]);
-    }
-
-    return EXIT_SUCCESS;
-}