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ignore casing when converting a source file path to relative path #9213

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Merged
merged 2 commits into from
Jun 20, 2016
Merged

ignore casing when converting a source file path to relative path #9213

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ignore casing when converting a source file path to relative path
zhengbli Jun 16, 2016
d9bd31f
Use getCanonicalFileName
zhengbli Jun 20, 2016
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4 changes: 3 additions & 1 deletion src/compiler/utilities.ts
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Expand Up @@ -2330,7 +2330,9 @@ namespace ts {

export function getSourceFilePathInNewDir(sourceFile: SourceFile, host: EmitHost, newDirPath: string) {
let sourceFilePath = getNormalizedAbsolutePath(sourceFile.fileName, host.getCurrentDirectory());
sourceFilePath = sourceFilePath.replace(host.getCommonSourceDirectory(), "");
const commonSourceDirectory = host.getCommonSourceDirectory();
const isSourceFileInCommonSourceDirectory = sourceFilePath.toLowerCase().indexOf(commonSourceDirectory.toLowerCase()) === 0;
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@sheetalkamat sheetalkamat Jun 16, 2016

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This shouldn't be done without checking ignoreCase option in compilerOptions

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@zhengbli zhengbli Jun 16, 2016

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I only found a forceConsistentCasingInFileNames option in the compilerOptions. Is that what you are referring to?

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@sheetalkamat sheetalkamat Jun 17, 2016

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Meant usage of getCanonicalFileName instead to handle the casing option just like the way we do in relative name computation or common directory name compuation.

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@zhengbli zhengbli Jun 17, 2016 •
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The case sensitivity used by getCanonicalFileName is actually not very trustable, because we tell the file system case sensitivity solely by OS. However, in some cases this is wrong, for example network mounted file system on Windows, or HFS / HFS+ on OSX. Relying on it has caused many troubles previously when dealing with file watching. So I think it might be better if we only use the canonical file name internally for comparison purpose, but not when directly talking to the file system.

sourceFilePath = isSourceFileInCommonSourceDirectory ? sourceFilePath.substring(commonSourceDirectory.length) : sourceFilePath;
return combinePaths(newDirPath, sourceFilePath);
}

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