@electric-sql/pglite-tools/dist/pg_dump.cjs

Tools for working with PGlite databases

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u=a.node_ops.readlink(a);PATH.isAbs(u)||(u=PATH.dirname(o)+"/"+u),e=u+"/"+n.slice(s+1).join("/");continue e}}return{path:o,node:a}}throw new FS.ErrnoError(32)},getPath(e){for(var r;;){if(FS.isRoot(e)){var t=e.mount.mountpoint;return r?t[t.length-1]!=="/"?`${t}/${r}`:t+r:t}r=r?`${e.name}/${r}`:e.name,e=e.parent}},hashName(e,r){for(var t=0,n=0;n<r.length;n++)t=(t<<5)-t+r.charCodeAt(n)|0;return(e+t>>>0)%FS.nameTable.length},hashAddNode(e){var r=FS.hashName(e.parent.id,e.name);e.name_next=FS.nameTable[r],FS.nameTable[r]=e},hashRemoveNode(e){var r=FS.hashName(e.parent.id,e.name);if(FS.nameTable[r]===e)FS.nameTable[r]=e.name_next;else for(var t=FS.nameTable[r];t;){if(t.name_next===e){t.name_next=e.name_next;break}t=t.name_next}},lookupNode(e,r){var t=FS.mayLookup(e);if(t)throw new FS.ErrnoError(t);for(var n=FS.hashName(e.id,r),a=FS.nameTable[n];a;a=a.name_next){var o=a.name;if(a.parent.id===e.id&&o===r)return a}return FS.lookup(e,r)},createNode(e,r,t,n){var a=new FS.FSNode(e,r,t,n);return FS.hashAddNode(a),a},destroyNode(e){FS.hashRemoveNode(e)},isRoot(e){return e===e.parent},isMountpoint(e){return!!e.mounted},isFile(e){return(e&61440)===32768},isDir(e){return(e&61440)===16384},isLink(e){return(e&61440)===40960},isChrdev(e){return(e&61440)===8192},isBlkdev(e){return(e&61440)===24576},isFIFO(e){return(e&61440)===4096},isSocket(e){return(e&49152)===49152},flagsToPermissionString(e){var r=["r","w","rw"][e&3];return e&512&&(r+="w"),r},nodePermissions(e,r){return FS.ignorePermissions?0:r.includes("r")&&!(e.mode&292)||r.includes("w")&&!(e.mode&146)||r.includes("x")&&!(e.mode&73)?2:0},mayLookup(e){if(!FS.isDir(e.mode))return 54;var r=FS.nodePermissions(e,"x");return r||(e.node_ops.lookup?0:2)},mayCreate(e,r){if(!FS.isDir(e.mode))return 54;try{var t=FS.lookupNode(e,r);return 20}catch{}return FS.nodePermissions(e,"wx")},mayDelete(e,r,t){var n;try{n=FS.lookupNode(e,r)}catch(o){return o.errno}var a=FS.nodePermissions(e,"wx");if(a)return a;if(t){if(!FS.isDir(n.mode))return 54;if(FS.isRoot(n)||FS.getPath(n)===FS.cwd())return 10}else if(FS.isDir(n.mode))return 31;return 0},mayOpen(e,r){return e?FS.isLink(e.mode)?32:FS.isDir(e.mode)&&(FS.flagsToPermissionString(r)!=="r"||r&512)?31:FS.nodePermissions(e,FS.flagsToPermissionString(r)):44},MAX_OPEN_FDS:4096,nextfd(){for(var e=0;e<=FS.MAX_OPEN_FDS;e++)if(!FS.streams[e])return e;throw new FS.ErrnoError(33)},getStreamChecked(e){var r=FS.getStream(e);if(!r)throw new FS.ErrnoError(8);return r},getStream:e=>FS.streams[e],createStream(e,r=-1){return e=Object.assign(new FS.FSStream,e),r==-1&&(r=FS.nextfd()),e.fd=r,FS.streams[r]=e,e},closeStream(e){FS.streams[e]=null},dupStream(e,r=-1){var t=FS.createStream(e,r);return t.stream_ops?.dup?.(t),t},chrdev_stream_ops:{open(e){var r=FS.getDevice(e.node.rdev);e.stream_ops=r.stream_ops,e.stream_ops.open?.(e)},llseek(){throw new FS.ErrnoError(70)}},major:e=>e>>8,minor:e=>e&255,makedev:(e,r)=>e<<8|r,registerDevice(e,r){FS.devices[e]={stream_ops:r}},getDevice:e=>FS.devices[e],getMounts(e){for(var r=[],t=[e];t.length;){var n=t.pop();r.push(n),t.push(...n.mounts)}return r},syncfs(e,r){typeof e=="function"&&(r=e,e=!1),FS.syncFSRequests++,FS.syncFSRequests>1&&err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`);var t=FS.getMounts(FS.root.mount),n=0;function a(s){return FS.syncFSRequests--,r(s)}function o(s){if(s)return o.errored?void 0:(o.errored=!0,a(s));++n>=t.length&&a(null)}t.forEach(s=>{if(!s.type.syncfs)return o(null);s.type.syncfs(s,e,o)})},mount(e,r,t){var n=t==="/",a=!t,o;if(n&&FS.root)throw new FS.ErrnoError(10);if(!n&&!a){var s=FS.lookupPath(t,{follow_mount:!1});if(t=s.path,o=s.node,FS.isMountpoint(o))throw new FS.ErrnoError(10);if(!FS.isDir(o.mode))throw new FS.ErrnoError(54)}var l={type:e,opts:r,mountpoint:t,mounts:[]},u=e.mount(l);return u.mount=l,l.root=u,n?FS.root=u:o&&(o.mounted=l,o.mount&&o.mount.mounts.push(l)),u},unmount(e){var r=FS.lookupPath(e,{follow_mount:!1});if(!FS.isMountpoint(r.node))throw new FS.ErrnoError(28);var t=r.node,n=t.mounted,a=FS.getMounts(n);Object.keys(FS.nameTable).forEach(s=>{for(var l=FS.nameTable[s];l;){var u=l.name_next;a.includes(l.mount)&&FS.destroyNode(l),l=u}}),t.mounted=null;var o=t.mount.mounts.indexOf(n);t.mount.mounts.splice(o,1)},lookup(e,r){return e.node_ops.lookup(e,r)},mknod(e,r,t){var n=FS.lookupPath(e,{parent:!0}),a=n.node,o=PATH.basename(e);if(!o||o==="."||o==="..")throw new FS.ErrnoError(28);var s=FS.mayCreate(a,o);if(s)throw new FS.ErrnoError(s);if(!a.node_ops.mknod)throw new FS.ErrnoError(63);return a.node_ops.mknod(a,o,r,t)},statfs(e){var r={bsize:4096,frsize:4096,blocks:1e6,bfree:5e5,bavail:5e5,files:FS.nextInode,ffree:FS.nextInode-1,fsid:42,flags:2,namelen:255},t=FS.lookupPath(e,{follow:!0}).node;return t?.node_ops.statfs&&Object.assign(r,t.node_ops.statfs(t.mount.opts.root)),r},create(e,r=438){return r&=4095,r|=32768,FS.mknod(e,r,0)},mkdir(e,r=511){return r&=1023,r|=16384,FS.mknod(e,r,0)},mkdirTree(e,r){for(var t=e.split("/"),n="",a=0;a<t.length;++a)if(t[a]){n+="/"+t[a];try{FS.mkdir(n,r)}catch(o){if(o.errno!=20)throw o}}},mkdev(e,r,t){return typeof t>"u"&&(t=r,r=438),r|=8192,FS.mknod(e,r,t)},symlink(e,r){if(!PATH_FS.resolve(e))throw new FS.ErrnoError(44);var t=FS.lookupPath(r,{parent:!0}),n=t.node;if(!n)throw new FS.ErrnoError(44);var a=PATH.basename(r),o=FS.mayCreate(n,a);if(o)throw new FS.ErrnoError(o);if(!n.node_ops.symlink)throw new FS.ErrnoError(63);return n.node_ops.symlink(n,a,e)},rename(e,r){var t=PATH.dirname(e),n=PATH.dirname(r),a=PATH.basename(e),o=PATH.basename(r),s,l,u;if(s=FS.lookupPath(e,{parent:!0}),l=s.node,s=FS.lookupPath(r,{parent:!0}),u=s.node,!l||!u)throw new FS.ErrnoError(44);if(l.mount!==u.mount)throw new FS.ErrnoError(75);var d=FS.lookupNode(l,a),c=PATH_FS.relative(e,n);if(c.charAt(0)!==".")throw new FS.ErrnoError(28);if(c=PATH_FS.relative(r,t),c.charAt(0)!==".")throw new FS.ErrnoError(55);var m;try{m=FS.lookupNode(u,o)}catch{}if(d!==m){var _=FS.isDir(d.mode),f=FS.mayDelete(l,a,_);if(f)throw new FS.ErrnoError(f);if(f=m?FS.mayDelete(u,o,_):FS.mayCreate(u,o),f)throw new FS.ErrnoError(f);if(!l.node_ops.rename)throw new FS.ErrnoError(63);if(FS.isMountpoint(d)||m&&FS.isMountpoint(m))throw new FS.ErrnoError(10);if(u!==l&&(f=FS.nodePermissions(l,"w"),f))throw new FS.ErrnoError(f);FS.hashRemoveNode(d);try{l.node_ops.rename(d,u,o),d.parent=u}catch(S){throw S}finally{FS.hashAddNode(d)}}},rmdir(e){var r=FS.lookupPath(e,{parent:!0}),t=r.node,n=PATH.basename(e),a=FS.lookupNode(t,n),o=FS.mayDelete(t,n,!0);if(o)throw new FS.ErrnoError(o);if(!t.node_ops.rmdir)throw new FS.ErrnoError(63);if(FS.isMountpoint(a))throw new FS.ErrnoError(10);t.node_ops.rmdir(t,n),FS.destroyNode(a)},readdir(e){var r=FS.lookupPath(e,{follow:!0}),t=r.node;if(!t.node_ops.readdir)throw new FS.ErrnoError(54);return t.node_ops.readdir(t)},unlink(e){var r=FS.lookupPath(e,{parent:!0}),t=r.node;if(!t)throw new FS.ErrnoError(44);var n=PATH.basename(e),a=FS.lookupNode(t,n),o=FS.mayDelete(t,n,!1);if(o)throw new FS.ErrnoError(o);if(!t.node_ops.unlink)throw new FS.ErrnoError(63);if(FS.isMountpoint(a))throw new FS.ErrnoError(10);t.node_ops.unlink(t,n),FS.destroyNode(a)},readlink(e){var r=FS.lookupPath(e),t=r.node;if(!t)throw new FS.ErrnoError(44);if(!t.node_ops.readlink)throw new FS.ErrnoError(28);return t.node_ops.readlink(t)},stat(e,r){var t=FS.lookupPath(e,{follow:!r}),n=t.node;if(!n)throw new FS.ErrnoError(44);if(!n.node_ops.getattr)throw new FS.ErrnoError(63);return n.node_ops.getattr(n)},lstat(e){return FS.stat(e,!0)},chmod(e,r,t){var n;if(typeof e=="string"){var a=FS.lookupPath(e,{follow:!t});n=a.node}else n=e;if(!n.node_ops.setattr)throw new FS.ErrnoError(63);n.node_ops.setattr(n,{mode:r&4095|n.mode&-4096,ctime:Date.now()})},lchmod(e,r){FS.chmod(e,r,!0)},fchmod(e,r){var t=FS.getStreamChecked(e);FS.chmod(t.node,r)},chown(e,r,t,n){var a;if(typeof e=="string"){var o=FS.lookupPath(e,{follow:!n});a=o.node}else a=e;if(!a.node_ops.setattr)throw new FS.ErrnoError(63);a.node_ops.setattr(a,{timestamp:Date.now()})},lchown(e,r,t){FS.chown(e,r,t,!0)},fchown(e,r,t){var n=FS.getStreamChecked(e);FS.chown(n.node,r,t)},truncate(e,r){if(r<0)throw new FS.ErrnoError(28);var t;if(typeof e=="string"){var n=FS.lookupPath(e,{follow:!0});t=n.node}else t=e;if(!t.node_ops.setattr)throw new FS.ErrnoError(63);if(FS.isDir(t.mode))throw new FS.ErrnoError(31);if(!FS.isFile(t.mode))throw new FS.ErrnoError(28);var a=FS.nodePermissions(t,"w");if(a)throw new FS.ErrnoError(a);t.node_ops.setattr(t,{size:r,timestamp:Date.now()})},ftruncate(e,r){var t=FS.getStreamChecked(e);if(!(t.flags&2097155))throw new FS.ErrnoError(28);FS.truncate(t.node,r)},utime(e,r,t){var n=FS.lookupPath(e,{follow:!0}),a=n.node;a.node_ops.setattr(a,{atime:r,mtime:t})},open(e,r,t=438){if(e==="")throw new FS.ErrnoError(44);r=typeof r=="string"?FS_modeStringToFlags(r):r,r&64?t=t&4095|32768:t=0;var n;if(typeof e=="object")n=e;else{var a=FS.lookupPath(e,{follow:!(r&131072),noent_okay:!0});n=a.node,e=a.path}var o=!1;if(r&64)if(n){if(r&128)throw new FS.ErrnoError(20)}else n=FS.mknod(e,t,0),o=!0;if(!n)throw new FS.ErrnoError(44);if(FS.isChrdev(n.mode)&&(r&=-513),r&65536&&!FS.isDir(n.mode))throw new FS.ErrnoError(54);if(!o){var s=FS.mayOpen(n,r);if(s)throw new FS.ErrnoError(s)}r&512&&!o&&FS.truncate(n,0),r&=-131713;var l=FS.createStream({node:n,path:FS.getPath(n),flags:r,seekable:!0,position:0,stream_ops:n.stream_ops,ungotten:[],error:!1});return l.stream_ops.open&&l.stream_ops.open(l),Module.logReadFiles&&!(r&1)&&(e in FS.readFiles||(FS.readFiles[e]=1)),l},close(e){if(FS.isClosed(e))throw new FS.ErrnoError(8);e.getdents&&(e.getdents=null);try{e.stream_ops.close&&e.stream_ops.close(e)}catch(r){throw r}finally{FS.closeStream(e.fd)}e.fd=null},isClosed(e){return e.fd===null},llseek(e,r,t){if(FS.isClosed(e))throw new FS.ErrnoError(8);if(!e.seekable||!e.stream_ops.llseek)throw new FS.ErrnoError(70);if(t!=0&&t!=1&&t!=2)throw new FS.ErrnoError(28);return e.position=e.stream_ops.llseek(e,r,t),e.ungotten=[],e.position},read(e,r,t,n,a){if(n<0||a<0)throw new FS.ErrnoError(28);if(FS.isClosed(e))throw new FS.ErrnoError(8);if((e.flags&2097155)===1)throw new FS.ErrnoError(8);if(FS.isDir(e.node.mode))throw new FS.ErrnoError(31);if(!e.stream_ops.read)throw new FS.ErrnoError(28);var o=typeof a<"u";if(!o)a=e.position;else if(!e.seekable)throw new FS.ErrnoError(70);var s=e.stream_ops.read(e,r,t,n,a);return o||(e.position+=s),s},write(e,r,t,n,a,o){if(n<0||a<0)throw new FS.ErrnoError(28);if(FS.isClosed(e))throw new FS.ErrnoError(8);if(!(e.flags&2097155))throw new FS.ErrnoError(8);if(FS.isDir(e.node.mode))throw new FS.ErrnoError(31);if(!e.stream_ops.write)throw new FS.ErrnoError(28);e.seekable&&e.flags&1024&&FS.llseek(e,0,2);var s=typeof a<"u";if(!s)a=e.position;else if(!e.seekable)throw new FS.ErrnoError(70);var l=e.stream_ops.write(e,r,t,n,a,o);return s||(e.position+=l),l},allocate(e,r,t){if(FS.isClosed(e))throw new FS.ErrnoError(8);if(r<0||t<=0)throw new FS.ErrnoError(28);if(!(e.flags&2097155))throw new FS.ErrnoError(8);if(!FS.isFile(e.node.mode)&&!FS.isDir(e.node.mode))throw new FS.ErrnoError(43);if(!e.stream_ops.allocate)throw new FS.ErrnoError(138);e.stream_ops.allocate(e,r,t)},mmap(e,r,t,n,a){if(n&2&&!(a&2)&&(e.flags&2097155)!==2)throw new FS.ErrnoError(2);if((e.flags&2097155)===1)throw new FS.ErrnoError(2);if(!e.stream_ops.mmap)throw new FS.ErrnoError(43);if(!r)throw new FS.ErrnoError(28);return e.stream_ops.mmap(e,r,t,n,a)},msync(e,r,t,n,a){return e.stream_ops.msync?e.stream_ops.msync(e,r,t,n,a):0},ioctl(e,r,t){if(!e.stream_ops.ioctl)throw new FS.ErrnoError(59);return e.stream_ops.ioctl(e,r,t)},readFile(e,r={}){if(r.flags=r.flags||0,r.encoding=r.encoding||"binary",r.encoding!=="utf8"&&r.encoding!=="binary")throw new Error(`Invalid encoding type "${r.encoding}"`);var t,n=FS.open(e,r.flags),a=FS.stat(e),o=a.size,s=new Uint8Array(o);return FS.read(n,s,0,o,0),r.encoding==="utf8"?t=UTF8ArrayToString(s):r.encoding==="binary"&&(t=s),FS.close(n),t},writeFile(e,r,t={}){t.flags=t.flags||577;var n=FS.open(e,t.flags,t.mode);if(typeof r=="string"){var a=new Uint8Array(lengthBytesUTF8(r)+1),o=stringToUTF8Array(r,a,0,a.length);FS.write(n,a,0,o,void 0,t.canOwn)}else if(ArrayBuffer.isView(r))FS.write(n,r,0,r.byteLength,void 0,t.canOwn);else throw new Error("Unsupported data type");FS.close(n)},cwd:()=>FS.currentPath,chdir(e){var r=FS.lookupPath(e,{follow:!0});if(r.node===null)throw new FS.ErrnoError(44);if(!FS.isDir(r.node.mode))throw new FS.ErrnoError(54);var t=FS.nodePermissions(r.node,"x");if(t)throw new FS.ErrnoError(t);FS.currentPath=r.path},createDefaultDirectories(){FS.mkdir("/tmp"),FS.mkdir("/home"),FS.mkdir("/home/web_user")},createDefaultDevices(){FS.mkdir("/dev"),FS.registerDevice(FS.makedev(1,3),{read:()=>0,write:(n,a,o,s,l)=>s,llseek:()=>0}),FS.mkdev("/dev/null",FS.makedev(1,3)),TTY.register(FS.makedev(5,0),TTY.default_tty_ops),TTY.register(FS.makedev(6,0),TTY.default_tty1_ops),FS.mkdev("/dev/tty",FS.makedev(5,0)),FS.mkdev("/dev/tty1",FS.makedev(6,0));var e=new Uint8Array(1024),r=0,t=()=>(r===0&&(r=randomFill(e).byteLength),e[--r]);FS.createDevice("/dev","random",t),FS.createDevice("/dev","urandom",t),FS.mkdir("/dev/shm"),FS.mkdir("/dev/shm/tmp")},createSpecialDirectories(){FS.mkdir("/proc");var e=FS.mkdir("/proc/self");FS.mkdir("/proc/self/fd"),FS.mount({mount(){var r=FS.createNode(e,"fd",16895,73);return r.stream_ops={llseek:MEMFS.stream_ops.llseek},r.node_ops={lookup(t,n){var a=+n,o=FS.getStreamChecked(a),s={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:()=>o.path},id:a+1};return s.parent=s,s},readdir(){return Array.from(FS.streams.entries()).filter(([t,n])=>n).map(([t,n])=>t.toString())}},r}},{},"/proc/self/fd")},createStandardStreams(e,r,t){e?FS.createDevice("/dev","stdin",e):FS.symlink("/dev/tty","/dev/stdin"),r?FS.createDevice("/dev","stdout",null,r):FS.symlink("/dev/tty","/dev/stdout"),t?FS.createDevice("/dev","stderr",null,t):FS.symlink("/dev/tty1","/dev/stderr");var n=FS.open("/dev/stdin",0),a=FS.open("/dev/stdout",1),o=FS.open("/dev/stderr",1)},staticInit(){FS.nameTable=new Array(4096),FS.mount(MEMFS,{},"/"),FS.createDefaultDirectories(),FS.createDefaultDevices(),FS.createSpecialDirectories(),FS.filesystems={MEMFS}},init(e,r,t){FS.initialized=!0,e??(e=Module.stdin),r??(r=Module.stdout),t??(t=Module.stderr),FS.createStandardStreams(e,r,t)},quit(){FS.initialized=!1,_fflush(0);for(var e=0;e<FS.streams.length;e++){var r=FS.streams[e];r&&FS.close(r)}},findObject(e,r){var t=FS.analyzePath(e,r);return t.exists?t.object:null},analyzePath(e,r){try{var t=FS.lookupPath(e,{follow:!r});e=t.path}catch{}var n={isRoot:!1,exists:!1,error:0,name:null,path:null,object:null,parentExists:!1,parentPath:null,parentObject:null};try{var t=FS.lookupPath(e,{parent:!0});n.parentExists=!0,n.parentPath=t.path,n.parentObject=t.node,n.name=PATH.basename(e),t=FS.lookupPath(e,{follow:!r}),n.exists=!0,n.path=t.path,n.object=t.node,n.name=t.node.name,n.isRoot=t.path==="/"}catch(a){n.error=a.errno}return n},createPath(e,r,t,n){e=typeof e=="string"?e:FS.getPath(e);for(var a=r.split("/").reverse();a.length;){var o=a.pop();if(o){var s=PATH.join2(e,o);try{FS.mkdir(s)}catch{}e=s}}return s},createFile(e,r,t,n,a){var o=PATH.join2(typeof e=="string"?e:FS.getPath(e),r),s=FS_getMode(n,a);return FS.create(o,s)},createDataFile(e,r,t,n,a,o){var s=r;e&&(e=typeof e=="string"?e:FS.getPath(e),s=r?PATH.join2(e,r):e);var l=FS_getMode(n,a),u=FS.create(s,l);if(t){if(typeof t=="string"){for(var d=new Array(t.length),c=0,m=t.length;c<m;++c)d[c]=t.charCodeAt(c);t=d}FS.chmod(u,l|146);var _=FS.open(u,577);FS.write(_,t,0,t.length,0,o),FS.close(_),FS.chmod(u,l)}},createDevice(e,r,t,n){var l;var a=PATH.join2(typeof e=="string"?e:FS.getPath(e),r),o=FS_getMode(!!t,!!n);(l=FS.createDevice).major??(l.major=64);var s=FS.makedev(FS.createDevice.major++,0);return FS.registerDevice(s,{open(u){u.seekable=!1},close(u){n?.buffer?.length&&n(10)},read(u,d,c,m,_){for(var f=0,S=0;S<m;S++){var v;try{v=t()}catch{throw new FS.ErrnoError(29)}if(v===void 0&&f===0)throw new FS.ErrnoError(6);if(v==null)break;f++,d[c+S]=v}return f&&(u.node.atime=Date.now()),f},write(u,d,c,m,_){for(var f=0;f<m;f++)try{n(d[c+f])}catch{throw new FS.ErrnoError(29)}return m&&(u.node.mtime=u.node.ctime=Date.now()),f}}),FS.mkdev(a,o,s)},forceLoadFile(e){if(e.isDevice||e.isFolder||e.link||e.contents)return!0;if(typeof XMLHttpRequest<"u")throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");try{e.contents=readBinary(e.url),e.usedBytes=e.contents.length}catch{throw new FS.ErrnoError(29)}},createLazyFile(e,r,t,n,a){class o{constructor(){b(this,"lengthKnown",!1);b(this,"chunks",[])}get(f){if(!(f>this.length-1||f<0)){var S=f%this.chunkSize,v=f/this.chunkSize|0;return this.getter(v)[S]}}setDataGetter(f){this.getter=f}cacheLength(){var f=new XMLHttpRequest;if(f.open("HEAD",t,!1),f.send(null),!(f.status>=200&&f.status<300||f.status===304))throw new Error("Couldn't load "+t+". Status: "+f.status);var S=Number(f.getResponseHeader("Content-length")),v,F=(v=f.getResponseHeader("Accept-Ranges"))&&v==="bytes",g=(v=f.getResponseHeader("Content-Encoding"))&&v==="gzip",w=1024*1024;F||(w=S);var A=(p,h)=>{if(p>h)throw new Error("invalid range ("+p+", "+h+") or no bytes requested!");if(h>S-1)throw new Error("only "+S+" bytes available! programmer error!");var E=new XMLHttpRequest;if(E.o