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https://github.com/urbit/shrub.git
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130 lines
2.4 KiB
C
130 lines
2.4 KiB
C
/* v/fs.c
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**
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** This file is in the public domain.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <setjmp.h>
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#include <gmp.h>
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#include <stdint.h>
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#include <uv.h>
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#include <curses.h>
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#include <termios.h>
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#include <term.h>
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#include "all.h"
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#include "f/coal.h"
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#include "v/vere.h"
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/* u2_ve_file(): load internal file as atom from local or system.
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*/
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u2_weak
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u2_ve_file(c3_c* ext_c, u2_noun tah)
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{
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u2_noun pas;
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u2_weak dat;
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c3_assert(u2_System);
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pas = u2_cf_path(u2_System, ext_c, u2k(tah));
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dat = u2_cf_flat_load(c3__atom, pas);
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u2z(tah);
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return dat;
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}
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/* u2_ve_date(): date internal file.
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*/
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c3_d
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u2_ve_date(c3_c* ext_c, u2_noun tah)
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{
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u2_noun pas;
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u2_weak dat;
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pas = u2_cf_path(u2_System, ext_c, u2k(tah));
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dat = u2_cf_flat_date(pas);
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u2z(tah);
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return dat;
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}
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/* u2_ve_frep(): load [.~ %rep myp {now} hat].
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**
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** File is either ~ or [nbytes mdate atom].
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*/
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u2_noun
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u2_ve_frep(u2_noun myp, u2_noun hat)
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{
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// Total hack - switch to this form exclusively,
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// then revise callers.
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{
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c3_c* dex_c = u2_cr_string(myp);
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u2_noun tah = u2_ckb_flop(hat);
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u2_weak fat = u2_ve_file(dex_c, u2_ct(tah));
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u2_cz(myp);
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if ( u2_none == fat ) {
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u2_cz(tah);
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free(dex_c);
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return u2_nul;
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} else {
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c3_d wen_d = u2_ve_date(dex_c, tah);
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c3_w wen_w[2];
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wen_w[0] = (wen_d & 0xffffffffULL);
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wen_w[1] = (wen_d >> 32ULL);
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free(dex_c);
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return u2nt(u2_cr_met(3, fat),
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u2_ci_words(2, wen_w),
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fat);
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}
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}
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}
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/* u2_ve_save(): save internal file as atom.
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*/
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u2_bean
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u2_ve_save(c3_c* ext_c, u2_noun tah, u2_noun dat)
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{
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return u2_cf_flat_save(c3__atom, u2_cf_path(u2_System, ext_c, tah), dat);
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}
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/* u2_ve_fold(): load a list of all files with extension `ext` in `tah`.
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*/
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u2_noun
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u2_ve_fold(c3_c* ext_c, u2_noun tah)
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{
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u2_noun pas = u2_cf_path(u2_System, 0, tah);
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u2_noun raw = u2_cf_list(pas);
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/* Filter for extension.
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*/
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if ( !ext_c ) {
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return raw;
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} else {
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u2_noun lis = u2_nul;
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while ( u2_nul != raw ) {
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u2_noun i_raw = u2h(raw);
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u2_noun t_raw = u2t(raw);
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{
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c3_c* str_c = u2_cr_string(i_raw);
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c3_c* chr_c = strrchr(str_c, '.');
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if ( !strcmp(ext_c, chr_c+1) ) {
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*chr_c = 0;
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lis = u2nc(u2_ci_string(str_c), lis);
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}
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}
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raw = t_raw;
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}
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u2z(raw);
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return lis;
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}
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}
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