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view.html
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<!doctype html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="icon" href="icon.svg">
<title>view</title>
<style>
body {
margin: 1.5rem;
font-family: sans-serif;
}
dt {
margin-top: 0.5rem;
}
ul {
margin: 0.5rem 0rem;
}
table {
margin: 0rem -1rem;
border-spacing: 1rem 0rem;
}
thead td {
border-bottom: 1px solid #d0d0d0;
vertical-align: bottom;
}
td {
vertical-align: baseline;
}
.directory {
list-style-type: none;
}
.directory_summary {
list-style-position: outside;
}
.node {
margin: 0.5rem 0rem;
min-width: 12rem;
}
.attr {
display: inline-block;
border-radius: 0.5rem;
padding: 0.1rem 0.4rem;
background-color: #e0e0e0;
line-height: 0.8rem;
font-size: 0.8rem;
}
.attr.executable {
background-color: #ff0080;
color: #ffffff;
}
.attr.symlink {
background-color: #80ff00;
}
.verbatim {
font-family: monospace;
white-space: pre-wrap;
}
.prefix {
opacity: 50%;
}
</style>
<p><span id="hash_message"></span></p>
<dl id="hash_section" hidden>
<dt>.narinfo file</dt>
<dd><span class="verbatim"><span id="narinfo_file"></span></span></dd>
</dl>
<p><span id="narinfo_message"></span></p>
<dl id="narinfo_section" hidden>
<dt>Store path</dt>
<dd><span class="verbatim"><span id="path"></span></span></dd>
<dt>File URL</dt>
<dd><span class="verbatim"><span id="url"></span></span></dd>
<dt>File compression</dt>
<dd><span id="compression"></span></dd>
<dt>File hash</dt>
<dd><span class="verbatim"><span id="file_hash"></span></span></dd>
<dt>File size</dt>
<dd><span id="file_size"></span></dd>
<dt>.nar hash</dt>
<dd><span class="verbatim"><span id="nar_hash"></span></span></dd>
<dt>.nar size</dt>
<dd><span id="nar_size"></span></dd>
<dt>References</dt>
<dd><ul id="references"></ul></dd>
<dt>Deriver</dt>
<dd><span class="verbatim"><span id="deriver"></span></span></dd>
<dt>Signatures</dt>
<dd><ul id="sigs"></ul></dd>
<dt>Content address</dt>
<dd><span class="verbatim"><span id="ca"></span></span></dd>
</dl>
<p><span id="nar_message"></span></p>
<dl id="nar_section" hidden>
<dt>.nar contents</dt>
<dd><ul id="root"></ul></dd>
</dl>
<p><span id="drv_message"></span></p>
<dl id="drv_section" hidden>
<dt>Outputs</dt>
<dd>
<table id="outputs">
<thead>
<tr>
<td>Name</td>
<td>Path</td>
<td>Hash algorithm</td>
<td>Hash</td>
</tr>
</thead>
</table>
</dd>
<dt>Input derivations</dt>
<dd>
<table id="input_drvs">
<thead>
<tr>
<td>Path</td>
<td>Outputs</td>
</tr>
</thead>
</table>
</dd>
<dt>Input sources</dt>
<dd><ul id="input_srcs"></ul></dd>
<dt>Platform</dt>
<dd><span id="platform"></span></dd>
<dt>Builder</dt>
<dd><span class="verbatim"><span id="builder"></span></span></dd>
<dt>Builder arguments</dt>
<dd><ol id="builder_args"></ol></dd>
<dt>Builder environment</dt>
<dd>
<table id="env">
<thead>
<tr>
<td>Name</td>
<td>Value</td>
</tr>
</thead>
</table>
</dd>
</dl>
<script src="misc.js"></script>
<script>
(async () => {
let messageSpan = null;
try {
messageSpan = document.getElementById('hash_message');
const options = new URL(window.location).searchParams;
const cacheBase = options.get('cache_base');
const cacheBaseDrv = options.get('cache_base_drv');
const cacheBaseOut = options.get('cache_base_out');
const hash = options.get('hash');
const linkToDrv = (linkHash) => {
let href = '';
if (cacheBaseDrv) {
href += `?cache_base=${encodeURIComponent(cacheBaseDrv)}`;
href += `&cache_base_out=${encodeURIComponent(cacheBase)}`;
} else {
href += `?cache_base=${encodeURIComponent(cacheBase)}`;
if (cacheBaseOut) {
href += `&cache_base_out=${encodeURIComponent(cacheBaseOut)}`;
}
}
href += `&hash=${encodeURIComponent(linkHash)}`;
return href;
};
const linkToOut = (linkHash) => {
let href = '';
if (cacheBaseOut) {
href += `?cache_base=${encodeURIComponent(cacheBaseOut)}`;
href += `&cache_base_drv=${encodeURIComponent(cacheBase)}`;
} else {
href += `?cache_base=${encodeURIComponent(cacheBase)}`;
if (cacheBaseDrv) {
href += `&cache_base_drv=${encodeURIComponent(cacheBaseDrv)}`;
}
}
href += `&hash=${encodeURIComponent(linkHash)}`;
return href;
};
const linkToPeer = (linkHash) => {
let href = '';
href += `?cache_base=${encodeURIComponent(cacheBase)}`;
if (cacheBaseDrv) {
href += `&cache_base_drv=${encodeURIComponent(cacheBaseDrv)}`;
}
if (cacheBaseOut) {
href += `&cache_base_out=${encodeURIComponent(cacheBaseOut)}`;
}
href += `&hash=${encodeURIComponent(linkHash)}`;
return href;
};
const narinfoFileSpan = document.getElementById('narinfo_file');
const narinfoFileLink = document.createElement('a');
narinfoFileLink.href = `${cacheBase}/${hash}.narinfo`;
narinfoFileLink.textContent = `${hash}.narinfo`;
narinfoFileSpan.appendChild(narinfoFileLink);
document.getElementById('hash_section').hidden = false;
messageSpan = document.getElementById('narinfo_message');
messageSpan.textContent = 'Loading .narinfo';
const narinfo = await cacheGetNarinfo(cacheBase, hash);
messageSpan.textContent = '';
const renderPrefix = (s, prefixLength) => {
const frag = document.createDocumentFragment();
const prefixInline = document.createElement('span');
prefixInline.className = 'prefix';
prefixInline.textContent = s.slice(0, prefixLength);
frag.appendChild(prefixInline);
frag.appendChild(document.createTextNode(s.slice(prefixLength)));
return frag;
};
const rootPath = narinfo.path;
const rootMatch = pathMatch(rootPath);
const rootName = pathMatchName(rootMatch);
document.title = rootName;
const pathSpan = document.getElementById('path');
pathSpan.appendChild(renderPrefix(rootPath, pathMatchNameStart(rootMatch)));
const urlSpan = document.getElementById('url');
const urlLink = document.createElement('a');
urlLink.href = cacheFileUrl(cacheBase, narinfo);
urlLink.textContent = narinfo.url;
urlSpan.appendChild(urlLink);
const compressionSpan = document.getElementById('compression');
compressionSpan.textContent = narinfo.compression;
const fileHashSpan = document.getElementById('file_hash');
fileHashSpan.textContent = narinfo.fileHash;
const fileSizeSpan = document.getElementById('file_size');
fileSizeSpan.textContent = narinfo.fileSize;
const narHashSpan = document.getElementById('nar_hash');
narHashSpan.textContent = narinfo.narHash;
const narSizeSpan = document.getElementById('nar_size');
narSizeSpan.textContent = narinfo.narSize;
const referencesList = document.getElementById('references');
for (const reference of narinfo.references) {
const nameStart = basenameNameStart(reference);
const referenceItem = document.createElement('li');
const referenceInline = document.createElement('span');
referenceInline.className = 'verbatim';
const referenceSpan = document.createElement('span');
const referenceLink = document.createElement('a');
referenceLink.href = linkToPeer(basenameHash(reference));
referenceLink.appendChild(renderPrefix(reference, basenameNameStart(reference)));
referenceSpan.appendChild(referenceLink);
referenceInline.appendChild(referenceSpan);
referenceItem.appendChild(referenceInline);
referencesList.appendChild(referenceItem);
}
const deriverSpan = document.getElementById('deriver');
if (narinfo.deriver) {
const deriverLink = document.createElement('a');
deriverLink.href = linkToDrv(basenameHash(narinfo.deriver));
deriverLink.appendChild(renderPrefix(narinfo.deriver, basenameNameStart(narinfo.deriver)));
deriverSpan.appendChild(deriverLink);
}
const sigsList = document.getElementById('sigs');
for (const sig of narinfo.sigs) {
const sigItem = document.createElement('li');
const sigInline = document.createElement('span');
sigInline.className = 'verbatim';
const sigSpan = document.createElement('span');
sigSpan.textContent = sig;
sigInline.appendChild(sigSpan);
sigItem.appendChild(sigInline);
sigsList.appendChild(sigItem);
}
const caSpan = document.getElementById('ca');
if (narinfo.ca) {
caSpan.textContent = narinfo.ca;
}
document.getElementById('narinfo_section').hidden = false;
messageSpan = document.getElementById('nar_message');
cacheCheckSupportedCompression(narinfo);
messageSpan.textContent = 'Downloading compressed .nar';
const fileBuf = await cacheGetFile(cacheBase, narinfo);
messageSpan.textContent = 'Decompressing .nar';
const narBuf = await cacheDecompressFile(fileBuf, narinfo);
messageSpan.textContent = '';
const nar = await narRead(narBuf);
const renderNode = (names, node) => {
const renderNames = (names) => {
const namesSpan = document.createElement('span');
let slashBefore = false;
for (const name of names) {
if (slashBefore) {
namesSpan.appendChild(document.createTextNode('/'));
}
slashBefore = true;
const nameSpan = document.createElement('span');
nameSpan.textContent = name;
namesSpan.appendChild(nameSpan);
}
return namesSpan;
}
switch (node.type) {
case 'regular': {
const nodeItem = document.createElement('li');
nodeItem.className = 'node regular';
const nameInline = document.createElement('span');
nameInline.className = 'verbatim';
nameInline.appendChild(renderNames(names));
nodeItem.appendChild(nameInline);
if (node.executable) {
nodeItem.appendChild(document.createTextNode(' '));
const executableSpan = document.createElement('span');
executableSpan.className = 'attr executable';
executableSpan.textContent = 'executable';
nodeItem.appendChild(executableSpan);
}
nodeItem.appendChild(document.createTextNode(' '));
const renderContent = (label, type, blobAdvice) => {
const contentSpan = document.createElement('span');
const prepareButton = document.createElement('input');
prepareButton.className = 'prepare';
prepareButton.type = 'button';
prepareButton.value = `contents (${label})`;
prepareButton.onclick = (e) => {
prepareButton.hidden = true;
const blob = new Blob([node.contents], {type: type});
const url = URL.createObjectURL(blob);
blobLink.href = url;
blobLink.hidden = false;
};
contentSpan.appendChild(prepareButton);
const blobLink = document.createElement('a');
blobLink.className = 'blob';
blobAdvice(blobLink);
blobLink.hidden = true;
blobLink.textContent = `contents (${label})`;
contentSpan.appendChild(blobLink);
return contentSpan;
};
nodeItem.appendChild(renderContent('binary download', 'application/octet-stream', (blobLink) => {
blobLink.download = name;
}));
nodeItem.appendChild(document.createTextNode(' '));
nodeItem.appendChild(renderContent('text view', 'text/plain', (blobLink) => {
blobLink.target = '_blank';
}));
return nodeItem;
}
case 'symlink': {
const nodeItem = document.createElement('li');
nodeItem.className = 'node symlink';
const nameInline = document.createElement('span');
nameInline.className = 'verbatim';
nameInline.appendChild(renderNames(names));
nodeItem.appendChild(nameInline);
nodeItem.appendChild(document.createTextNode(' '));
const symlinkSpan = document.createElement('span');
symlinkSpan.className = 'attr symlink';
symlinkSpan.textContent = 'symlink';
nodeItem.appendChild(symlinkSpan);
nodeItem.appendChild(document.createTextNode(' '));
const targetInline = document.createElement('span');
targetInline.className = 'verbatim';
const targetSpan = document.createElement('span');
targetSpan.textContent = node.target;
targetInline.appendChild(targetSpan);
nodeItem.appendChild(targetInline);
return nodeItem;
}
case 'directory': {
if (node.entries.length === 1) {
const entry = node.entries[0];
names.push(entry.name);
return renderNode(names, entry.node);
}
const nodeItem = document.createElement('li');
nodeItem.className = 'node directory';
const directoryDetails = document.createElement('details');
const directorySummary = document.createElement('summary');
directorySummary.className = 'directory_summary';
const nameInline = document.createElement('span');
nameInline.className = 'verbatim';
nameInline.appendChild(renderNames(names));
directorySummary.appendChild(nameInline);
directorySummary.appendChild(document.createTextNode(`\xa0(${node.entries.length})`));
directoryDetails.appendChild(directorySummary);
const entriesList = document.createElement('ul');
entriesList.className = 'entries';
for (const entry of node.entries) {
entriesList.appendChild(renderNode([entry.name], entry.node));
}
directoryDetails.appendChild(entriesList);
nodeItem.appendChild(directoryDetails);
return nodeItem;
}
default:
throw new Error(`unrecognized type ${node.type}`)
}
};
document.getElementById('root').appendChild(renderNode([rootName], nar.root));
document.getElementById('nar_section').hidden = false;
if (nameIsDerivation(rootName)) {
messageSpan = document.getElementById('nar_message');
const drv = drvParse(new TextDecoder().decode(nar.root.contents));
const [outputs, inputDrvs, inputSrcs, platform, builder, builderArgs, env] = drv;
const outputsTable = document.getElementById('outputs');
const outputsBody = outputsTable.createTBody();
for (const [name, path, narHashAlgorithm, narHash] of outputs) {
const outputMatch = pathMatch(path);
const outputRow = outputsBody.insertRow(-1);
const nameSpan = document.createElement('span');
nameSpan.textContent = name;
outputRow.insertCell(-1).appendChild(nameSpan);
const pathInline = document.createElement('span');
pathInline.className = 'verbatim';
const pathSpan = document.createElement('span');
const pathLink = document.createElement('a');
pathLink.href = linkToOut(pathMatchHash(outputMatch));
pathLink.appendChild(renderPrefix(path, pathMatchNameStart(outputMatch)));
pathSpan.appendChild(pathLink);
pathInline.appendChild(pathSpan);
outputRow.insertCell(-1).appendChild(pathInline);
const narHashAlgorithmSpan = document.createElement('span');
narHashAlgorithmSpan.textContent = narHashAlgorithm;
outputRow.insertCell(-1).appendChild(narHashAlgorithmSpan);
const narHashSpan = document.createElement('span');
narHashSpan.textContent = narHash;
outputRow.insertCell(-1).appendChild(narHashSpan);
}
const inputDrvsTable = document.getElementById('input_drvs');
const inputDrvsBody = inputDrvsTable.createTBody();
for (const [drvPath, drvOutputs] of inputDrvs) {
const inputDrvMatch = pathMatch(drvPath);
const inputDrvRow = inputDrvsBody.insertRow(-1);
const drvInline = document.createElement('span');
drvInline.className = 'verbatim';
const drvSpan = document.createElement('span');
const drvLink = document.createElement('a');
drvLink.href = linkToDrv(pathMatchHash(inputDrvMatch));
drvLink.appendChild(renderPrefix(drvPath, pathMatchNameStart(inputDrvMatch)));
drvSpan.appendChild(drvLink);
drvInline.appendChild(drvSpan);
inputDrvRow.insertCell(-1).appendChild(drvInline);
const drvOutputsSpan = document.createElement('span');
drvOutputsSpan.textContent = drvOutputs.join(', ');
inputDrvRow.insertCell(-1).appendChild(drvOutputsSpan);
}
const inputSrcHashes = {};
const inputSrcsList = document.getElementById('input_srcs');
for (const inputSrc of inputSrcs) {
const inputSrcMatch = pathMatch(inputSrc);
const inputSrcHash = pathMatchHash(inputSrcMatch);
inputSrcHashes[inputSrcHash] = true;
const inputSrcItem = document.createElement('li');
const inputSrcInline = document.createElement('span');
inputSrcInline.className = 'verbatim';
const inputSrcSpan = document.createElement('span');
const inputSrcLink = document.createElement('a');
inputSrcLink.href = linkToPeer(inputSrcHash);
inputSrcLink.appendChild(renderPrefix(inputSrc, pathMatchNameStart(inputSrcMatch)));
inputSrcSpan.appendChild(inputSrcLink);
inputSrcInline.appendChild(inputSrcSpan);
inputSrcItem.appendChild(inputSrcInline);
inputSrcsList.appendChild(inputSrcItem);
}
document.getElementById('platform').textContent = platform;
const maybeLinkifySingle = (path) => {
const match = pathMatch(path);
if (!match) return null;
const linkHash = pathMatchHash(match);
const link = document.createElement('a');
const isInputSrc = linkHash in inputSrcHashes;
link.href = isInputSrc ? linkToPeer(linkHash) : linkToOut(linkHash);
link.appendChild(renderPrefix(path, pathMatchNameStart(match)));
return link;
};
const linkifySingle = (path) => {
return maybeLinkifySingle(path) || document.createTextNode(path)
};
const linkify = (text) => {
// Nix allows '=' too, but that works less well
// https://github.com/NixOS/nix/blob/2.8.1/src/libstore/path.cc#L14-L17
return uiNodify(text, /[\/\w+?.-]+/g, (m) => {
const path = m[0];
if (!path.startsWith('/')) return null;
return maybeLinkifySingle(path);
});
};
document.getElementById('builder').appendChild(linkifySingle(builder));
const builderArgsList = document.getElementById('builder_args');
for (const builderArg of builderArgs) {
const builderArgItem = document.createElement('li');
const builderArgInline = document.createElement('span');
builderArgInline.className = 'verbatim';
const builderArgSpan = document.createElement('span');
builderArgSpan.appendChild(linkify(builderArg));
builderArgInline.appendChild(builderArgSpan);
builderArgItem.appendChild(builderArgInline);
builderArgsList.appendChild(builderArgItem);
}
const envTable = document.getElementById('env');
const envBody = envTable.createTBody();
for (const [name, value] of env) {
const varRow = envBody.insertRow(-1);
const nameInline = document.createElement('span');
nameInline.className = 'verbatim';
const nameSpan = document.createElement('span');
nameSpan.textContent = name;
nameInline.appendChild(nameSpan);
varRow.insertCell(-1).appendChild(nameInline);
const valueInline = document.createElement('span');
valueInline.className = 'verbatim';
const valueSpan = document.createElement('span');
valueSpan.appendChild(linkify(value))
valueInline.appendChild(valueSpan);
varRow.insertCell(-1).appendChild(valueInline);
}
document.getElementById('drv_section').hidden = false;
}
} catch (e) {
console.error(e);
if (messageSpan) {
messageSpan.textContent = '' + e;
}
}
})();
</script>