Double whitespace breaks logging #10970
Description
Bug Report
dvc repro: fails storing correct command in dvc.lock
Description
Some double spaces of dvc.yaml-commands are not stored in the dvc.lock-clone.
This happens if a command is too long, and gets formatted with an additional line break exactly at the double-space.
As a result, dvc status regards the stage as dirty, even directly after commiting or running it.
Reproduce
# 1. Create a new directory and initialize DVC
mkdir my-dir && cd my-dir
git init
dvc init
# 2. Create a dvc.yaml with lots of double spaces in the command
cat > dvc.yaml << 'EOF'
stages:
test_stage:
cmd: echo "lots" "of" "words" "(too much" "for" "one" "line)" "with" "lots" "of" "double-whitespace" "between" "the" "parts" > output.txt
outs:
- output.txt
EOF
# 3. Run the stage to generate lock file
# (you can check in it that some double-space became a line-break!)
dvc repro
# 4. Check status - should be clean but shows "changed command"
dvc statusExpected
dvc status should regard everything as up-to-date.
Environment information
Output of dvc doctor:
$ dvc doctor
DVC version: 3.66.1 (pip)
-------------------------
Platform: Python 3.12.3 on Linux-6.14.0-119037-tuxedo-x86_64-with-glibc2.39
Subprojects:
dvc_data = 3.18.2
dvc_objects = 5.2.0
dvc_render = 1.0.2
dvc_task = 0.40.2
scmrepo = 3.6.1
Supports:
http (aiohttp = 3.13.3, aiohttp-retry = 2.9.1),
https (aiohttp = 3.13.3, aiohttp-retry = 2.9.1),
ssh (sshfs = 2025.11.0)
Config:
Global: /home/maxg/.config/dvc
System: /home/maxg/.config/kdedefaults/dvc
Cache types: hardlink, symlink
Cache directory: ext4 on /dev/mapper/system-root
Caches: local
Remotes: None
Workspace directory: ext4 on /dev/mapper/system-root
Repo: dvc, git
Repo.site_cache_dir: /var/tmp/dvc/repo/f919da52546ca06d0c807bb616433829
Additional Information:
Neither does dvc commit store the correct command.
Already started a discussion here #10933. But I guess, a bug-report is more appropriate.