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Line ending issue with fs/write_file in Opencode 2 #50740
Description
Description
I use Opencode through ACP
In version 1, Opencode uses it's own editing capabilities which worked fine, while in version 2 it uses fs/write_file which messes line endings
My files have LF line endings. Let me quote the agent:
The `edit` tool inflated CRLF files with blank lines on repeated edits;
I restored from git and re-applied all 29 replacements via a newline-preserving script —
final diff is 70 insertions / 21 deletions across 9 files.
Worth keeping in mind for future edits on this repo.
Plugins
No response
OpenCode version
2.0.12
Steps to reproduce
My environment is a project on Windows with LF file line endings (so no default CRLF for Windows as it may be expected)
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Operating System
Windows 11
Terminal
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github-actions commentedon Sep 22, 2026
This issue might be a duplicate of existing issues. Please check:
If your issue is specifically about
fs/write_filein v2 behaving differently from v1, please clarify that distinction in the existing issues or confirm this is a new regression.klonuo commentedon Sep 22, 2026
Yes, issue is specifically about fs/write_file in v2 behaving differently from v1