Changing the tab size back and forth does produce a different formatting than doing nothing.

[adamryczkowski]

I did play with the crazy tab indent of size 15 and noticed one thing:

After formatting this piece of code:

    checkgitversion("${CheckGitSetup_REPOSITORY_PATH}"  "${CheckGitSetup_TEMPLATE_FILE}"  "${CheckGitSetup_OUTPUT_FILE}"  "${CheckGitSetup_INCLUDE_HEADER}")

with the indent 15 and then back to 4 again, I arrived with a different string:

    checkgitversion("${CheckGitSetup_REPOSITORY_PATH}"             "${CheckGitSetup_TEMPLATE_FILE}"             "${CheckGitSetup_OUTPUT_FILE}"             "${CheckGitSetup_INCLUDE_HEADER}")

[BlankSpruce]

More data needed:

• Since this is most likely custom command, is the path to the file (or directory with that file) containing the definition provided through definitions/--definitions?

• If the definition is provided, could you share at least partial definition (without spoiling any proprietary code if it's proprietary) with pattern like this:

  function(try_to_win_best_picture_academy_award title alternative_title)
  set(opts FOREIGN_LANGUAGE)
  set(oneValue GENRE YEAR)
  set(multiValues DIRECTORS CAST)
  
  cmake_parse_arguments(_ "${opts}" "${oneValue}" "${multiValue}" ${ARGN})
  endfunction()

• If the definition is not provided, is your example reduced too much? Consider this script:

  
  #!/bin/bash

function log() { echo "[reproduction]" $@ }

function show-diff() { git diff $1 $2 && log "-- Files are identical" }

log "Create CMake file" cat < /tmp/gersemi-28-repro.cmake checkgitversion("\${CheckGitSetup_REPOSITORY_PATH}" "\${CheckGitSetup_TEMPLATE_FILE}" "\${CheckGitSetup_OUTPUT_FILE}" "\${CheckGitSetup_INCLUDE_HEADER}") EOF

log "Run gersemi first time with indent=15" gersemi --indent 15 /tmp/gersemi-28-repro.cmake > /tmp/gersemi-28-repro-after-first-time.cmake

log "Run gersemi second time with indent=4" gersemi --indent 4 /tmp/gersemi-28-repro-after-first-time.cmake > /tmp/gersemi-28-repro-after-second-time.cmake

log "Show diff between original and first reformatting" show-diff /tmp/gersemi-28-repro.cmake /tmp/gersemi-28-repro-after-first-time.cmake

log "Show diff between original and second reformatting" show-diff /tmp/gersemi-28-repro.cmake /tmp/gersemi-28-repro-after-second-time.cmake

log "Show diff between first and second reformatting" show-diff /tmp/gersemi-28-repro-after-first-time.cmake /tmp/gersemi-28-repro-after-second-time.cmake

![image](https://github.com/BlankSpruce/gersemi/assets/32396809/364c30f2-b0a5-4fda-8b23-63bb5c782b59)

[BlankSpruce]

I think I got it. Your example omitted if()/endif() or anything similar that introduces a block. A proper example is:

if(TRUE)
    checkgitversion("${CheckGitSetup_REPOSITORY_PATH}"  "${CheckGitSetup_TEMPLATE_FILE}"  "${CheckGitSetup_OUTPUT_FILE}"  "${CheckGitSetup_INCLUDE_HEADER}")
endif()

I'll fix that in 0.13.1.