Add •file.Rename
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409524d958
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fdeae8fbfe
@ -676,6 +676,8 @@ static NFnDesc* fExistsDesc;
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static NFnDesc* fListDesc;
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static NFnDesc* fMapBytesDesc;
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static NFnDesc* createdirDesc;
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static NFnDesc* renameDesc;
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B list_c1(B d, B x) {
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return path_list(path_rel(nfn_objU(d), x));
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}
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@ -685,6 +687,13 @@ B createdir_c1(B d, B x) {
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thrM("(file).CreateDir: Failed to create directory");
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}
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B rename_c2(B d, B w, B x) {
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d = nfn_objU(d);
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B p = path_rel(d, w);
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if (path_rename(path_rel(d, x), p)) return p;
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thrM("(file).Rename: Failed to rename file");
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}
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B ftype_c1(B d, B x) {
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char ty = path_type(path_rel(nfn_objU(d), x));
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if (ty==0) thrM("•file.Type: Error while accessing file");
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@ -1101,7 +1110,7 @@ B sys_c1(B t, B x) {
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if(!fileNS.u) {
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REQ_PATH;
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#define F(X) m_nfn(X##Desc, inc(path))
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fileNS = m_nns(file_nsGen, q_N(path)? m_c32(0) : inc(path), F(fileAt), F(fList), F(fBytes), F(fChars), F(fLines), F(fType), F(fExists), inc(bi_fName), F(fMapBytes), F(createdir));
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fileNS = m_nns(file_nsGen, q_N(path)? m_c32(0) : inc(path), F(fileAt), F(fList), F(fBytes), F(fChars), F(fLines), F(fType), F(fExists), inc(bi_fName), F(fMapBytes), F(createdir), F(rename));
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#undef F
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}
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cr = inc(fileNS);
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@ -1170,12 +1179,13 @@ void sysfn_init() {
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fListDesc = registerNFn(m_str8l("(file).List"), list_c1, c2_bad);
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fTypeDesc = registerNFn(m_str8l("(file).Type"), ftype_c1, c2_bad);
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createdirDesc = registerNFn(m_str8l("(file).CreateDir"), createdir_c1, c2_bad);
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renameDesc = registerNFn(m_str8l("(file).Rename"), c1_bad, rename_c2);
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fMapBytesDesc = registerNFn(m_str8l("(file).MapBytes"), mapBytes_c1, c2_bad);
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fExistsDesc = registerNFn(m_str8l("(file).Exists"), fexists_c1, c2_bad);
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importDesc = registerNFn(m_str32(U"•Import"), import_c1, import_c2);
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reBQNDesc = registerNFn(m_str8l("(REPL)"), repl_c1, repl_c2);
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}
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void sysfnPost_init() {
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file_nsGen = m_nnsDesc("path","at","list","bytes","chars","lines","type","exists","name","mapbytes","createdir");
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file_nsGen = m_nnsDesc("path","at","list","bytes","chars","lines","type","exists","name","mapbytes","createdir","rename");
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c(BMd1,bi_bitcast)->im = bitcast_im;
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}
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@ -1,4 +1,5 @@
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#include <dirent.h>
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#include <unistd.h>
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#include "../core.h"
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#include "file.h"
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#include "mut.h"
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@ -312,6 +313,17 @@ bool dir_create(B path) {
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return r;
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}
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bool path_rename(B old_path, B new_path) {
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char* old = toCStr(old_path);
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char* new = toCStr(new_path);
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// TODO Fix race condition, e.g., with renameat2 on Linux, etc.
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bool ok = access(new, F_OK) != 0 && rename(old, new) == 0;
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freeCStr(new);
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freeCStr(old);
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dec(old_path);
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return ok;
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}
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char path_type(B path) {
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char* p = toCStr(path);
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struct stat path_stat;
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@ -15,6 +15,7 @@ I8Arr* stream_bytes(FILE* f);
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B mmap_file(B path); // consumes
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bool dir_create(B path); // doesn't consume
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bool path_rename(B old_path, B new_path); // consumes only old_path
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void path_wChars(B path, B x); // consumes path
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void path_wBytes(B path, B x); // consumes path
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