fix: prevent conflicting dry-run flags with Helm v4 (#894) #927
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When using helm-diff with Helm v4.0.0, code was adding both --dry-run=server (for validation) and --dry-run=client (default for helm template), creating a conflict. This caused .Capabilities.APIVersions.Has to be incorrectly evaluated, resulting in incorrect diff output. Changes: - Add helper function getValidateFlag() to avoid code duplication - Only return --validate flag for Helm v3 (not v4) when validation is enabled - Remove the logic that adds --dry-run=server for validation in Helm v4 - Add --dry-run=client for Helm v4 when using helm upgrade --dry-run (when HELM_DIFF_UPGRADE_DRY_RUN is set and version doesn't support dry-run lookup) - Simplify comments in helm template section This fixes the issue where .Capabilities.APIVersions.Has was incorrectly filled when using Helm v4.0.0, which caused helm-diff to incorrectly show code blocks as deleted when they should not be. Signed-off-by: yxxhero <aiopsclub@163.com>
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When using helm-diff with Helm v4.0.0, code was adding both --dry-run=server (for validation) and --dry-run=client (default for helm template), creating a conflict. This caused .Capabilities.APIVersions.Has to be incorrectly evaluated, resulting in incorrect diff output.
Changes:
This fixes the issue where .Capabilities.APIVersions.Has was incorrectly filled when using Helm v4.0.0, which caused helm-diff to incorrectly show code blocks as deleted when they should not be.