/
extract.ts
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/
extract.ts
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import { MAVEN_REPO } from '../../datasource/maven/common';
import * as datasourceSbtPackage from '../../datasource/sbt-package';
import * as datasourceSbtPlugin from '../../datasource/sbt-plugin';
import { get } from '../../versioning';
import * as mavenVersioning from '../../versioning/maven';
import { PackageDependency, PackageFile } from '../common';
const isComment = (str: string): boolean => /^\s*\/\//.test(str);
const isSingleLineDep = (str: string): boolean =>
/^\s*(libraryDependencies|dependencyOverrides)\s*\+=\s*/.test(str);
const isDepsBegin = (str: string): boolean =>
/^\s*(libraryDependencies|dependencyOverrides)\s*\+\+=\s*/.test(str);
const isPluginDep = (str: string): boolean =>
/^\s*addSbtPlugin\s*\(.*\)\s*$/.test(str);
const isStringLiteral = (str: string): boolean => /^"[^"]*"$/.test(str);
const isScalaVersion = (str: string): boolean =>
/^\s*scalaVersion\s*:=\s*"[^"]*"[\s,]*$/.test(str);
const getScalaVersion = (str: string): string =>
str.replace(/^\s*scalaVersion\s*:=\s*"/, '').replace(/"[\s,]*$/, '');
/*
https://www.scala-sbt.org/release/docs/Cross-Build.html#Publishing+conventions
*/
const normalizeScalaVersion = (str: string): string => {
// istanbul ignore if
if (!str) {
return str;
}
const versioning = get(mavenVersioning.id);
if (versioning.isVersion(str)) {
// Do not normalize unstable versions
if (!versioning.isStable(str)) {
return str;
}
// Do not normalize versions prior to 2.10
if (!versioning.isGreaterThan(str, '2.10.0')) {
return str;
}
}
if (/^\d+\.\d+\.\d+$/.test(str)) {
return str.replace(/^(\d+)\.(\d+)\.\d+$/, '$1.$2');
}
// istanbul ignore next
return str;
};
const isScalaVersionVariable = (str: string): boolean =>
/^\s*scalaVersion\s*:=\s*[_a-zA-Z][_a-zA-Z0-9]*[\s,]*$/.test(str);
const getScalaVersionVariable = (str: string): string =>
str.replace(/^\s*scalaVersion\s*:=\s*/, '').replace(/[\s,]*$/, '');
const isResolver = (str: string): boolean =>
/^\s*(resolvers\s*\+\+?=\s*(Seq\()?)?"[^"]*"\s*at\s*"[^"]*"[\s,)]*$/.test(
str
);
const getResolverUrl = (str: string): string =>
str
.replace(/^\s*(resolvers\s*\+\+?=\s*(Seq\()?)?"[^"]*"\s*at\s*"/, '')
.replace(/"[\s,)]*$/, '');
const isVarDependency = (str: string): boolean =>
/^\s*(private\s*)?(lazy\s*)?val\s[_a-zA-Z][_a-zA-Z0-9]*\s*=.*(%%?).*%.*/.test(
str
);
const isVarDef = (str: string): boolean =>
/^\s*(private\s*)?(lazy\s*)?val\s+[_a-zA-Z][_a-zA-Z0-9]*\s*=\s*"[^"]*"\s*$/.test(
str
);
const getVarName = (str: string): string =>
str
.replace(/^\s*(private\s*)?(lazy\s*)?val\s+/, '')
.replace(/\s*=\s*"[^"]*"\s*$/, '');
const isVarName = (str: string): boolean =>
/^[_a-zA-Z][_a-zA-Z0-9]*$/.test(str);
const getVarInfo = (str: string, ctx: ParseContext): { val: string } => {
const rightPart = str.replace(
/^\s*(private\s*)?(lazy\s*)?val\s+[_a-zA-Z][_a-zA-Z0-9]*\s*=\s*"/,
''
);
const val = rightPart.replace(/"\s*$/, '');
return { val };
};
interface ParseContext {
scalaVersion: string;
variables: any;
depType?: string;
}
function parseDepExpr(
expr: string,
ctx: ParseContext
): PackageDependency | null {
const { scalaVersion, variables } = ctx;
let { depType } = ctx;
const isValidToken = (str: string): boolean =>
isStringLiteral(str) || (isVarName(str) && !!variables[str]);
const resolveToken = (str: string): string =>
isStringLiteral(str)
? str.replace(/^"/, '').replace(/"$/, '')
: variables[str].val;
const tokens = expr.trim().split(/\s*(%%?)\s*/);
const [
rawGroupId,
groupOp,
rawArtifactId,
artifactOp,
rawVersion,
scopeOp,
rawScope,
] = tokens;
if (!rawGroupId) {
return null;
}
if (!isValidToken(rawGroupId)) {
return null;
}
if (!rawArtifactId) {
return null;
}
if (!isValidToken(rawArtifactId)) {
return null;
}
if (artifactOp !== '%') {
return null;
}
if (!rawVersion) {
return null;
}
if (!isValidToken(rawVersion)) {
return null;
}
if (scopeOp && scopeOp !== '%') {
return null;
}
const groupId = resolveToken(rawGroupId);
const depName = `${groupId}:${resolveToken(rawArtifactId)}`;
const artifactId =
groupOp === '%%' && scalaVersion
? `${resolveToken(rawArtifactId)}_${scalaVersion}`
: resolveToken(rawArtifactId);
const lookupName = `${groupId}:${artifactId}`;
const currentValue = resolveToken(rawVersion);
if (!depType && rawScope) {
depType = rawScope.replace(/^"/, '').replace(/"$/, '');
}
const result: PackageDependency = {
depName,
lookupName,
currentValue,
};
if (depType) {
result.depType = depType;
}
return result;
}
interface ParseOptions {
isMultiDeps?: boolean;
scalaVersion?: string;
variables?: Record<string, any>;
}
function parseSbtLine(
acc: PackageFile & ParseOptions,
line: string,
lineIndex: number,
lines: string[]
): (PackageFile & ParseOptions) | null {
const { deps, registryUrls, variables } = acc;
let { isMultiDeps, scalaVersion } = acc;
const ctx: ParseContext = {
scalaVersion,
variables,
};
let dep: PackageDependency = null;
let scalaVersionVariable: string = null;
if (!isComment(line)) {
if (isScalaVersion(line)) {
isMultiDeps = false;
scalaVersion = normalizeScalaVersion(getScalaVersion(line));
} else if (isScalaVersionVariable(line)) {
isMultiDeps = false;
scalaVersionVariable = getScalaVersionVariable(line);
} else if (isResolver(line)) {
isMultiDeps = false;
const url = getResolverUrl(line);
registryUrls.push(url);
} else if (isVarDef(line)) {
variables[getVarName(line)] = getVarInfo(line, ctx);
} else if (isVarDependency(line)) {
isMultiDeps = false;
const depExpr = line.replace(
/^\s*(private\s*)?(lazy\s*)?val\s[_a-zA-Z][_a-zA-Z0-9]*\s*=\s*/,
''
);
dep = parseDepExpr(depExpr, {
...ctx,
});
} else if (isSingleLineDep(line)) {
isMultiDeps = false;
const depExpr = line.replace(/^.*\+=\s*/, '');
dep = parseDepExpr(depExpr, {
...ctx,
});
} else if (isPluginDep(line)) {
isMultiDeps = false;
const rightPart = line.replace(/^\s*addSbtPlugin\s*\(/, '');
const depExpr = rightPart.replace(/\)\s*$/, '');
dep = parseDepExpr(depExpr, {
...ctx,
depType: 'plugin',
});
} else if (isDepsBegin(line)) {
isMultiDeps = true;
} else if (isMultiDeps) {
const rightPart = line.replace(/^[\s,]*/, '');
const depExpr = rightPart.replace(/[\s,]*$/, '');
dep = parseDepExpr(depExpr, {
...ctx,
});
}
}
if (dep) {
if (dep.depType === 'plugin') {
dep.datasource = datasourceSbtPlugin.id;
} else {
dep.datasource = datasourceSbtPackage.id;
}
deps.push({
registryUrls,
...dep,
});
}
if (lineIndex + 1 < lines.length) {
return {
...acc,
isMultiDeps,
scalaVersion:
scalaVersion ||
(scalaVersionVariable &&
variables[scalaVersionVariable] &&
normalizeScalaVersion(variables[scalaVersionVariable].val)),
};
}
if (deps.length) {
return { deps };
}
return null;
}
export function extractPackageFile(content: string): PackageFile {
if (!content) {
return null;
}
const lines = content.split(/\n/);
return lines.reduce(parseSbtLine, {
registryUrls: [MAVEN_REPO],
deps: [],
isMultiDeps: false,
scalaVersion: null,
variables: {},
});
}