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tools.js
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tools.js
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import { parse } from "./fornix/support/nix_parser.bundle.js"
import { capitalize, indent, toCamelCase, digitsToEnglishArray, toPascalCase, toKebabCase, toSnakeCase, toScreamingtoKebabCase, toScreamingtoSnakeCase, toRepresentation, toString } from "https://deno.land/x/good@0.7.8/string.js"
import { FileSystem } from "https://deno.land/x/quickr@0.6.17/main/file_system.js"
import { yellow } from "https://deno.land/x/quickr@0.6.17/main/console.js"
// var nixStuff = Deno.readTextFileSync("fornix/documentation/snowball_format.nix")
// var nixStuff = Deno.readTextFileSync("/Users/jeffhykin/repos/nix-ros-overlay/distros/rolling/velodyne-driver/default.nix")
// var nixStuff = Deno.readTextFileSync("/Users/jeffhykin/repos/nixpkgs/pkgs/stdenv/darwin/default.nix")
export function nodeList(node) {
return [ node, ...(node.children||[]).map(nodeList) ].flat(Infinity)
}
export var realParse = (string)=>{
const tree = parse(string)
const rootNode = tree.rootNode
Object.defineProperties(tree, {
rootNode: {
get() {
return rootNode
}
}
})
const allNodes = nodeList(tree.rootNode)
let indent = ""
// mutate nodes
for (const eachNode of allNodes) {
if (eachNode.children.length) {
const newChildren = []
const childrenCopy = [...eachNode.children]
let firstChild = childrenCopy.shift()
// preceding whitespace
if (eachNode.startIndex != firstChild.startIndex) {
const whitespaceText = string.slice(eachNode.startIndex, firstChild.startIndex)
if (whitespaceText.match(/\n/)) {
indent = whitespaceText.split(/\n/).slice(-1)[0]
}
newChildren.push({
typeId: -1,
type: "whitespace",
text: whitespaceText,
startIndex: eachNode.startIndex,
endIndex: firstChild.startIndex,
indent,
})
}
firstChild.indent = indent
newChildren.push(firstChild)
// gaps between sibilings
let prevChild = firstChild
for (const eachSecondaryNode of childrenCopy) {
if (prevChild.endIndex != eachSecondaryNode.startIndex) {
const whitespaceText = string.slice(prevChild.endIndex, eachSecondaryNode.startIndex)
if (whitespaceText.match(/\n/)) {
indent = whitespaceText.split(/\n/).slice(-1)[0]
}
newChildren.push({
typeId: -1,
type: "whitespace",
text: whitespaceText,
startIndex: prevChild.endIndex,
endIndex: eachSecondaryNode.startIndex,
indent,
})
}
eachSecondaryNode.indent = indent
newChildren.push(eachSecondaryNode)
prevChild = eachSecondaryNode
}
//
// inject whitespace "nodes"
//
Object.defineProperties(eachNode, {
children: {
get() {
return newChildren
}
}
})
}
}
return tree
}
export var nodeAsJsonObject = (node)=>{
if (node.children && node.children.length) {
return {
typeId: node.typeId,
type: node.type,
startIndex: node.startIndex,
endIndex: node.endIndex,
children: node.children.map(each=>nodeAsJsonObject(each)),
indent: node.indent,
}
} else {
return {
typeId: node.typeId,
type: node.type,
text: node.text,
startIndex: node.startIndex,
endIndex: node.endIndex,
indent: node.indent,
}
}
}
export function nix2json(path) {
return nodeAsJsonObject(realParse(Deno.readTextFileSync(path)).rootNode)
}
export function json2Nix(jsonTree) {
return nodeList(jsonTree).map(each=>each.text||"").join("")
}
export function getInputs(path) {
const tree = realParse(Deno.readTextFileSync(path))
let indent = ""
for (const each of tree.rootNode.children) {
if (each.type == "function_expression" && each.children.length) {
const parameterAreas = each.children.filter(each=>each.type == "formals")
if (parameterAreas.length > 0 && parameterAreas[0].children.length) {
const parameterNodes = parameterAreas[0].children
return parameterNodes.filter(
eachParameterNode=>eachParameterNode.type == "formal"
).map(
// expession = "lib ? (thing.call {} 'whatever')"
// identifier = "lib"
eachParameterExpression=>eachParameterExpression.children.filter(
eachLiteral=>eachLiteral.type == "identifier"
)[0].text
)
}
}
}
}
export function echoInputs(path) {
const tree = nix2json(path)
let indent = ""
for (const each of tree.children) {
if (each.type == "function_expression" && each.children.length) {
const parameterAreas = each.children.filter(each=>each.type == "formals")
if (parameterAreas.length > 0 && parameterAreas[0].children.length) {
const parameterNodes = parameterAreas[0].children
if (parameterNodes.length && parameterNodes[0].text == "{") {
return json2Nix(parameterAreas[0]) + "@inputs: inputs"
}
}
}
}
}
// const baseIndentSize = 2
// async function format(path) {
// const string = await FileSystem.read(path)
// if (!string) {
// throw Error(`${FileSystem.normalize(path)} doesn't contain anything`)
// }
// const tree = realParse(string)
// const jsonableTree = nodeAsJsonObject(tree.rootNode)
// function innerFormat(node, runningIndentSize=0) {
// const indent = "\n"+(" ".repeat(runningIndentSize))
// // change the whitespace nodes
// if (node.type == "whitespace") {
// node.text = node.text.replace(/\n */g,indent)
// return node
// // check if indent should be changed
// } else if (node.type == "function_expression") {
// if (node.children[0].type == "formals") {
// const parameterArea = node.children[0]
// //
// // find {
// //
// if (parameterArea.children && parameterArea.children.length) {
// const isAttributeFunction = parameterArea.children[0].type == "{"
// if (isAttributeFunction) {
// // remove trailing whitespace
// if (parameterArea.children[1]?.type == "whitespace") {
// parameterArea.children.splice(1,1)
// }
// // add formatted whitespace
// parameterArea.children.splice(1,0,{ type: "whitespace", text:indent })
// parameterArea.children.push({ type: "whitespace", text:indent })
// // format all the middle nodes
// parameterArea.children.slice(2,-1).map(each=>innerFormat(each, runningIndentSize+baseIndentSize))
// }
// let newChildren = []
// for (const each of node.children) {
// newChildren.push(each)
// if (each.text == ":") {
// newChildren.push({ type: "whitespace", text: "\n" })
// }
// }
// node.children = newChildren
// console.debug(`node.children is:`,node.children)
// node.children.slice(1).map(each=>innerFormat(each, runningIndentSize+baseIndentSize))
// }
// }
// return node
// } else if (node.children && node.children.length) {
// node.children.map(each=>innerFormat(each, runningIndentSize))
// return node
// } else {
// return node
// }
// }
// const newJsonableTree = innerFormat(jsonableTree)
// return FileSystem.write({
// path: path,
// data: json2Nix(newJsonableTree),
// })
// }
export async function getCallPackagePaths(path) {
const string = await FileSystem.read(path)
if (!string) {
throw Error(`${FileSystem.normalize(path)} doesn't contain anything`)
}
const tree = realParse(string)
const jsonableTree = nodeAsJsonObject(tree.rootNode)
const allNodes = nodeList(jsonableTree)
const callPackagePaths = []
for (const eachNode of allNodes) {
if (eachNode.children && eachNode.children.length >= 3) {
const childrenTypes = eachNode.children.map(eachNode=>eachNode.type)
// FIXME: this gets the first import, but its slightly possible for there to be multiple in the same set of children
const indexOfVariableExpression = childrenTypes.indexOf("variable_expression")
const indexOfPathExpression = childrenTypes.indexOf("path_expression")
// confirm necessary outer structure
if (
indexOfVariableExpression >= 0
&& eachNode.children[indexOfVariableExpression + 1]
&& (eachNode.children[indexOfVariableExpression + 1]?.type == "whitespace")
&& indexOfVariableExpression + 2 == indexOfPathExpression
) {
// confirm necessary inner structure for importing from relative path
if (
(eachNode.children[indexOfVariableExpression]?.children||[{}])[0].type == "identifier" &&
(eachNode.children[indexOfVariableExpression]?.children||[{}])[0].text == "callPackage" &&
(eachNode.children[indexOfPathExpression]?.children||[{}])[0].type == "path_fragment"
) {
const literalRelativePathNode = (eachNode.children[indexOfPathExpression]?.children||[{}])[0]
const relativePath = literalRelativePathNode.text
const rawTarget = `${FileSystem.parentPath(path)}/${relativePath}`
const infoForTarget = await FileSystem.info(rawTarget)
let realTargetPath = rawTarget
if (infoForTarget.isFolder) {
realTargetPath = `${rawTarget}/default.nix`
}
realTargetPath = FileSystem.normalize(realTargetPath)
callPackagePaths.push([ relativePath, realTargetPath, path ])
}
}
}
}
return callPackagePaths
}
export async function innerBundle(path, callStack=[], rootPath=null, importNameMapping={}, importValueMapping={}, globalVariable=null) {
const isRoot = rootPath == null
if (isRoot) {
globalVariable = `_-_${Math.random()}_-_`.replace(/\./,"")
rootPath = path
}
callStack = [...callStack] // local copy (dont mutate parent copy)
callStack.push(path)
const string = await FileSystem.read(path)
if (!string) {
throw Error(`${FileSystem.normalize(path)} doesn't contain anything`)
}
const tree = realParse(string)
const jsonableTree = nodeAsJsonObject(tree.rootNode)
const allNodes = nodeList(jsonableTree)
const promises = []
for (const eachNode of allNodes) {
if (eachNode.children && eachNode.children.length >= 3) {
const childrenTypes = eachNode.children.map(eachNode=>eachNode.type)
// FIXME: this gets the first import, but its slightly possible for there to be multiple in the same set of children
const indexOfVariableExpression = childrenTypes.indexOf("variable_expression")
const indexOfPathExpression = childrenTypes.indexOf("path_expression")
// confirm necessary outer structure
if (
indexOfVariableExpression >= 0
&& eachNode.children[indexOfVariableExpression + 1]
&& (eachNode.children[indexOfVariableExpression + 1]?.type == "whitespace")
&& indexOfVariableExpression + 2 == indexOfPathExpression
) {
// confirm necessary inner structure for importing from relative path
if (
(eachNode.children[indexOfVariableExpression]?.children||[{}])[0].type == "identifier" &&
(eachNode.children[indexOfVariableExpression]?.children||[{}])[0].text == "import" &&
(eachNode.children[indexOfPathExpression]?.children||[{}])[0].type == "path_fragment"
) {
const literalRelativePathNode = (eachNode.children[indexOfPathExpression]?.children||[{}])[0]
const relativePath = literalRelativePathNode.text
const rawTarget = `${FileSystem.parentPath(path)}/${relativePath}`
const infoForTarget = await FileSystem.info(rawTarget)
let realTargetPath = rawTarget
const replaceWithNull = (reason)=>{
const importPlusWhitespacePlusPathLiteral = 3
eachNode.children.splice(indexOfVariableExpression, importPlusWhitespacePlusPathLiteral, { text: `null /* ${reason}*/` })
}
if (!infoForTarget.exists) {
replaceWithNull(`doesnt exist: import ${FileSystem.normalize(rawTarget)}`)
console.warn(yellow`import doesn't exist: ${JSON.stringify(FileSystem.normalize(rawTarget))}, search for: ${relativePath}, in ${callStack.slice(-1)[0]}`)
continue // no replacement
} else if (infoForTarget.isFolder) {
realTargetPath = `${rawTarget}/default.nix`
const infoForTarget = await FileSystem.info(realTargetPath)
if (!infoForTarget.exists) {
replaceWithNull(`doesnt exist: import ${FileSystem.normalize(realTargetPath)}`)
console.warn(yellow`import doesn't exist: ${JSON.stringify(FileSystem.normalize(rawTarget))}, search for: ${relativePath}, in ${callStack.slice(-1)[0]}`)
continue // no replacement
}
}
realTargetPath = FileSystem.normalize(realTargetPath)
//
// replacement
//
const importPlusWhitespacePlusPathLiteral = 3
const attributeName = JSON.stringify(realTargetPath).replace(/\{/g,"\\\{")
// if already seen/read
if (importNameMapping[realTargetPath]) {
// if recursive
if (callStack.includes(realTargetPath)) {
eachNode.children.splice(indexOfVariableExpression, importPlusWhitespacePlusPathLiteral, { text: `/*import:recursive*/ ${importNameMapping[realTargetPath]}` })
// if merely seen somewhere else
} else {
eachNode.children.splice(indexOfVariableExpression, importPlusWhitespacePlusPathLiteral, { text: `/*import:normal*/ ${importNameMapping[realTargetPath]}` })
}
continue
// first time the import has been seen
} else {
importNameMapping[realTargetPath] = `${globalVariable}.${attributeName}`
eachNode.children.splice(indexOfVariableExpression, importPlusWhitespacePlusPathLiteral, { text: `/*import:first*/ ${importNameMapping[realTargetPath]}` })
}
// create a promise resolving the value of the import
promises.push(
innerBundle(realTargetPath, callStack, rootPath, importNameMapping, importValueMapping, globalVariable).then(resultTree=>{
const indentedImport = indent({
string: json2Nix(resultTree),
by: " ",
})
// get the value of the mapping
importValueMapping[attributeName] = `(# ${JSON.stringify(realTargetPath)}\n${indentedImport}\n )`
})
)
}
}
}
}
// change all relative paths to be relative to the rootPath (otherwise they refer to the wrong thing)
for (const eachNode of allNodes) {
// make relative to current path
if (eachNode.type == "path_fragment") {
let newPath = FileSystem.makeRelativePath({
from: rootPath,
to: `${path}/${eachNode.text}`
})
if (newPath.length == 0) {
newPath = "./"
}
// must have "./" or "../"
if (newPath[0] != ".") {
newPath = `./${newPath}`
}
if (newPath == "..") {
newPath = "./.."
}
eachNode.text = newPath
}
}
await Promise.all(promises)
jsonableTree.importNameMapping = importNameMapping
jsonableTree.importValueMapping = importValueMapping
jsonableTree.globalVariable = globalVariable
return jsonableTree
}
export async function bundle(path) {
let [ folders, name, ext ] = await FileSystem.pathPieces(path)
const jsonableTree = await innerBundle(path)
const { globalVariable, importValueMapping } = jsonableTree
// create all the global imported values
const outputString = `(rec {
${globalVariable} = {${Object.entries(importValueMapping).map(([key, value])=>
`\n ${key} = ${value};`
).join("")}
};
output = (\n${indent({
string: json2Nix(jsonableTree),
by: " "
})}
);
}.output)`
await FileSystem.write({
path: FileSystem.cwd+`/${name}.bundle${ext}`,
data: outputString,
})
}
export async function createArgsFileFor(path, postfix="__args") {
let output
try {
output = echoInputs(path)
} catch (error) {
}
if (typeof output != 'string') {
console.log(`skipping: ${path}`)
return false
} else {
console.log(`processing: ${path}`)
await FileSystem.write({
path: FileSystem.dirname(path)+`/${FileSystem.basename(path)}${postfix}.nix`,
data: output,
})
return true
}
}
// await bundle("test.nix")
// await bundle("/Users/jeffhykin/repos/nixpkgs/lib/default.nix")
// await format("./test.nix")
// console.log(echoInputs("/Users/jeffhykin/repos/snowball/numpy.nix"))
console.log(JSON.stringify( nodeAsJsonObject(realParse(`
self: super: with self; {
numpy = callPackage ../development/python-modules/numpy { };
numpy_Args = callPackage ../development/python-modules/numpy/args.nix { };
gitsrht = self.callPackage ./git.nix { };
}
`).rootNode),0,4))