1 | import { createOperation } from "@dmail/cancellation"
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2 |
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3 | const { rollup } = import.meta.require("rollup")
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4 |
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5 | export const generateBundleUsingRollup = async ({
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6 | cancellationToken,
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7 | rollupParseOptions,
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8 | rollupGenerateOptions,
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9 | writeOnFileSystem,
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10 | }) => {
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11 | const rollupBundle = await createOperation({
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12 | cancellationToken,
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13 | start: () =>
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14 | rollup({
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15 | // about cache here, we should/could reuse previous rollup call
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16 | // to get the cache from the entryPointMap
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17 | // as shown here: https://rollupjs.org/guide/en#cache
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18 | // it could be passed in arguments to this function
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19 | // however parallelism and having different rollup options per
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20 | // call make it a bit complex
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21 | // cache: null
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22 | // https://rollupjs.org/guide/en#experimentaltoplevelawait
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23 | experimentalTopLevelAwait: true,
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24 | // if we want to ignore some warning
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25 | // please use https://rollupjs.org/guide/en#onwarn
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26 | // to be very clear about what we want to ignore
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27 | onwarn: (warning, warn) => {
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28 | if (warning.code === "THIS_IS_UNDEFINED") return
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29 | warn(warning)
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30 | },
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31 | ...rollupParseOptions,
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32 | }),
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33 | })
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34 |
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35 | const rollupOutputArray = await createOperation({
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36 | cancellationToken,
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37 | start: () => {
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38 | if (writeOnFileSystem) {
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39 | return rollupBundle.write({
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40 | // https://rollupjs.org/guide/en#experimentaltoplevelawait
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41 | experimentalTopLevelAwait: true,
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42 | // we could put prefConst to true by checking 'transform-block-scoping'
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43 | // presence in babelPluginMap
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44 | preferConst: false,
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45 | ...rollupGenerateOptions,
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46 | })
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47 | }
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48 | return rollupBundle.generate({
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49 | // https://rollupjs.org/guide/en#experimentaltoplevelawait
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50 | experimentalTopLevelAwait: true,
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51 | // we could put prefConst to true by checking 'transform-block-scoping'
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52 | // presence in babelPluginMap
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53 | preferConst: false,
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54 | ...rollupGenerateOptions,
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55 | })
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56 | },
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57 | })
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58 |
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59 | return rollupOutputArray
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60 | }
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