Output messages are sometimes misleading #112

[Rulrn]

Don't run changes if nothing to change

fixes #112

Solution

Check if old_string == new_string for ChangeRequest before adding to the change requests.

Tests

With the following template:

[version]
current = "6.11.0"
regex = '''
  (?P<major>\d+)
  \.
  (?P<minor>\d+)
  \.
  (?P<patch>\d+)
  (\-
    (?P<extra>.+)
  )?
  '''

...

[[file]]
src = "tbump/cli.py"
version_template = "{major}.{minor}.{patch}"

run the command python -m tbump 6.11.0-1 --dry

Previous output

:: Bumping from 6.11.0 to 6.11.0-1
=> Would update current version in tbump.toml
- tbump.toml:6 current = "6.11.0"
+ tbump.toml:6 current = "6.11.0-1"
=> Would patch these files
- pyproject.toml:6 version = "6.11.0"
+ pyproject.toml:6 version = "6.11.0-1"
- tbump/cli.py:21 TBUMP_VERSION = "6.11.0"
+ tbump/cli.py:21 TBUMP_VERSION = "6.11.0"
=> Would run these hooks before commit
* (1/2) $ poetry run invoke lint && poetry run pytest
* (2/2) $ grep -q 6.11.0-1 Changelog.rst
=> Would run these git commands
$ git add --update
$ git commit --message Bump to 6.11.0-1
$ git tag --annotate --message v6.11.0-1 v6.11.0-1
$ git push --atomic   v6.11.0-1
=> Would run these hooks after push
* (1/1) $ poetry publish --build

New output

:: Bumping from 6.11.0 to 6.11.0-1
=> Would update current version in tbump.toml
- tbump.toml:6 current = "6.11.0"
+ tbump.toml:6 current = "6.11.0-1"
=> Would patch these files
- pyproject.toml:6 version = "6.11.0"
+ pyproject.toml:6 version = "6.11.0-1"
=> Would run these hooks before commit
* (1/2) $ poetry run invoke lint && poetry run pytest
* (2/2) $ grep -q 6.11.0-1 Changelog.rst
=> Would run these git commands
$ git add --update
$ git commit --message Bump to 6.11.0-1
$ git tag --annotate --message v6.11.0-1 v6.11.0-1
$ git push --atomic   v6.11.0-1
=> Would run these hooks after push
* (1/1) $ poetry publish --build

[dmerejkowsky]

Thanks for the fix !