method

dirname

v1_9_1_378 - Show latest stable - 1 note - Class: File

dirname(p1) public

Returns all components of the filename given in file_name except the last one. The filename must be formed using forward slashes (“/”) regardless of the separator used on the local file system.

File.dirname("/home/gumby/work/ruby.rb")   #=> "/home/gumby/work"

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static VALUE
rb_file_s_dirname(VALUE klass, VALUE fname)
{
    const char *name, *root, *p;
    VALUE dirname;

    FilePathStringValue(fname);
    name = StringValueCStr(fname);
    root = skiproot(name);
#ifdef DOSISH_UNC
    if (root > name + 1 && isdirsep(*name))
        root = skipprefix(name = root - 2);
#else
    if (root > name + 1)
        name = root - 1;
#endif
    p = strrdirsep(root);
    if (!p) {
        p = root;
    }
    if (p == name)
        return rb_usascii_str_new2(".");
#ifdef DOSISH_DRIVE_LETTER
    if (has_drive_letter(name) && isdirsep(*(name + 2))) {
        const char *top = skiproot(name + 2);
        dirname = rb_str_new(name, 3);
        rb_str_cat(dirname, top, p - top);
    }
    else
#endif
    dirname = rb_str_new(name, p - name);
#ifdef DOSISH_DRIVE_LETTER
    if (has_drive_letter(name) && root == name + 2 && p - name == 2)
        rb_str_cat(dirname, ".", 1);
#endif
    rb_enc_copy(dirname, fname);
    OBJ_INFECT(dirname, fname);
    return dirname;
}

April 23, 2009

5 thanks

For the filename use File.basename

File.basename provides what File.dirname omits.

dirname

Related methods

For the filename use File.basename