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Fix backup storage by looking at the options correctly #13983

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merged 3 commits into from
Sep 18, 2020
Merged

Fix backup storage by looking at the options correctly #13983

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dde0a65
Fix backup storage by looking at the options correctly
rchiodo Sep 17, 2020
308b2d8
Fix backup by being more explicit
rchiodo Sep 18, 2020
cdf8f42
Only linux tests are failing. Hopefully fix them
rchiodo Sep 18, 2020
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1 change: 1 addition & 0 deletions news/2 Fixes/13981.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Backup on custom editors is being ignored.
2 changes: 1 addition & 1 deletion src/client/datascience/notebookStorage/nativeEditorStorage.ts
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Expand Up @@ -276,7 +276,7 @@ export class NativeEditorStorage implements INotebookStorage {
// Attempt to read the contents if a viable file
const contents = NativeEditorStorage.isUntitledFile(file) ? possibleContents : await this.fs.readFile(file);

const skipDirtyContents = typeof options === 'boolean' ? options : !!options;
const skipDirtyContents = typeof options === 'boolean' ? options : !options || options.length === 0;
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Root cause of the problem was the !!options was the opposite of what we wanted. This would turn an options into a true, whereas we really wanted any options to turn it into a false.

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Aahg, the problem was options was an empty array.

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@IanMatthewHuff IanMatthewHuff Sep 17, 2020 •
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Not going to lie. I find lines 279 - 282 really hard to read.

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Yeah that's really why this bug happened. The skipDirtyContents and the backupId are both confusing. I think it would have been better to just add another argument to the function instead of having the overload.

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I feel unclean just reading the function signature. I guess it's ok. Maybe we could distinctly split on if the options is a bool or a string and put it in a local variable name that actually makes sense?

if (typeof options === 'boolean') {
// assign to skipDirtyContents
} else if (typeof options === 'string') {
// assign to backupId
}

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I agree, @IanMatthewHuff suggestion will improve readability significantly

// Use backupId provided, else use static storage key.
const backupId =
typeof options === 'string' ? options : skipDirtyContents ? undefined : this.getStaticStorageKey(file);
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