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version.h files of C(++) projects
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| 'use strict' | ||
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| const fs = require('fs') | ||
| const AbstractFile = require('./abstract-file') | ||
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| const kSource = Symbol('kSource') | ||
| const kConstants = Symbol('constants') | ||
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| class VersionHeaderFile extends AbstractFile { | ||
| constructor (path, source, constants) { | ||
| super(path) | ||
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| this[kSource] = source | ||
| this[kConstants] = constants | ||
| } | ||
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| [AbstractFile.read] (callback) { | ||
| process.nextTick(callback) | ||
| } | ||
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| [AbstractFile.write] (callback) { | ||
| fs.writeFile(this.path, this[kSource], callback) | ||
| } | ||
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| [AbstractFile.getVersion] () { | ||
| return Array.from(this[kConstants]).slice(0, 3).map(x => x.value).join('.') | ||
| } | ||
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| [AbstractFile.setVersion] (version) { | ||
| const parts = version.split(/[.+-]/).slice(0, 3).map(x => parseInt(x, 10)) | ||
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| if (!parts.every(Number.isInteger)) { | ||
| return | ||
| } | ||
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| for (const constant of this[kConstants]) { | ||
| const value = parts.shift() || 0 | ||
| const oldDirective = constant.directive | ||
| const newDirective = `#define ${constant.name} ${value}` | ||
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| this[kSource] = this[kSource].replace(oldDirective, newDirective) | ||
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| constant.directive = newDirective | ||
| constant.value = value | ||
| } | ||
| } | ||
| } | ||
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| VersionHeaderFile.maybe = function (fp) { | ||
| const source = fs.readFileSync(fp, 'utf8') | ||
| const lines = source.split(/[\r\n]+/) | ||
| const constants = [] | ||
|
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| // Look for common combinations of constants | ||
| const combos = [ | ||
| ['VERSION_MAJOR', 'VERSION_MINOR', 'VERSION_BUILD', 'VERSION_REVISION'], | ||
| ['VERSION_MAJOR', 'VERSION_MINOR', 'VERSION_PATCH', 'VERSION_BUILD'], | ||
| ['VERSION_MAJOR', 'VERSION_MINOR', 'VERSION_PATCH'] | ||
| ] | ||
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| for (const line of lines) { | ||
| const match = /^#define\s+(VERSION_(?:MAJOR|MINOR|PATCH|BUILD|REVISION))\s+(\d+)$/ | ||
| .exec(line) | ||
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| if (match !== null) { | ||
| const [directive, name, value] = match | ||
| constants.push({ name, directive, value: parseInt(value, 10) }) | ||
| } | ||
| } | ||
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| for (const combo of combos) { | ||
| // Order matters | ||
| if (combo.length === constants.length && | ||
| combo.every((name, i) => constants[i].name === name)) { | ||
| return new VersionHeaderFile(fp, source, constants) | ||
| } | ||
| } | ||
| } | ||
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| module.exports = VersionHeaderFile |
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