Merge pull request #27746 from hashicorp/alisdair/optimize-large-multi-line-string-outputs

cli: Optimize for large multi-line string outputs
This commit is contained in:
Alisdair McDiarmid 2021-02-11 12:53:12 -05:00 committed by GitHub
commit 04e512d2f9
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1 changed files with 28 additions and 16 deletions

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@ -901,6 +901,17 @@ func (p *blockBodyDiffPrinter) writeValueDiff(old, new cty.Value, indent int, pa
}
}
// Optimization for strings which are exactly equal: just print
// directly without calculating the sequence diff. This makes a
// significant difference when this code path is reached via a
// writeValue call with a large multi-line string.
if oldS == newS {
for _, line := range newLines {
p.buf.WriteString(strings.Repeat(" ", indent+4))
p.buf.WriteString(line.AsString())
p.buf.WriteString("\n")
}
} else {
diffLines := ctySequenceDiff(oldLines, newLines)
for _, diffLine := range diffLines {
p.buf.WriteString(strings.Repeat(" ", indent+2))
@ -919,6 +930,7 @@ func (p *blockBodyDiffPrinter) writeValueDiff(old, new cty.Value, indent int, pa
}
p.buf.WriteString("\n")
}
}
p.buf.WriteString(strings.Repeat(" ", indent)) // +4 here because there's no symbol
p.buf.WriteString("EOT")