#include <u.h>#include <libc.h> #include "git.h" #define TMPPATH(suff) (".git/objects/pack/repack."suff) intcleanup(Hash h){	char newpfx[42], dpath[256], fpath[256];	int i, j, nd;	Dir *d; 	snprint(newpfx, sizeof(newpfx), "%H.", h);	for(i = 0; i < 256; i++){		snprint(dpath, sizeof(dpath), ".git/objects/%02x", i);		if((nd = slurpdir(dpath, &d)) == -1)			continue;		for(j = 0; j < nd; j++){			snprint(fpath, sizeof(fpath), ".git/objects/%02x/%s", i, d[j].name);			remove(fpath);		}		remove(dpath);		free(d);	}	snprint(dpath, sizeof(dpath), ".git/objects/pack");	if((nd = slurpdir(dpath, &d)) == -1)		return -1;	for(i = 0; i < nd; i++){		if(strncmp(d[i].name, newpfx, strlen(newpfx)) == 0)			continue;		snprint(fpath, sizeof(fpath), ".git/objects/pack/%s", d[i].name);		remove(fpath);	}	return 0;} voidusage(void){	fprint(2, "usage: %s [-d]\n", argv0);	exits("usage");} voidmain(int argc, char **argv){	char path[128], **names;	int fd, nrefs;	Hash *refs, h;	Dir rn; 	ARGBEGIN{	case 'd':		chattygit++;		break;	default:		usage();	}ARGEND; 	gitinit(nil, 0, nil);	refs = nil;	if((nrefs = listrefs(&refs, &names)) == -1)		sysfatal("load refs: %r");	if((fd = create(TMPPATH("pack.tmp"), OWRITE, 0644)) == -1)		sysfatal("open %s: %r", TMPPATH("pack.tmp"));	if(writepack(fd, refs, nrefs, nil, 0, &h) == -1)		sysfatal("writepack: %r");	if(indexpack(TMPPATH("pack.tmp"), TMPPATH("idx.tmp"), h) == -1)		sysfatal("indexpack: %r");	close(fd); 	nulldir(&rn);	rn.name = path;	snprint(path, sizeof(path), "%H.pack", h);	if(dirwstat(TMPPATH("pack.tmp"), &rn) == -1)		sysfatal("rename pack: %r");	snprint(path, sizeof(path), "%H.idx", h);	if(dirwstat(TMPPATH("idx.tmp"), &rn) == -1)		sysfatal("rename pack: %r");	if(cleanup(h) == -1)		sysfatal("cleanup: %r");	exits(nil);}