comparison tests/test-convert.t @ 30646:ea3540e66fd8

convert: config option for git rename limit

By default, Git applies rename and copy detection to 400 files. The
diff.renamelimit config option and -l argument to diff commands can
override this.

As part of converting some repositories in the wild, I was hitting
the default limit. Unfortunately, the warnings that Git prints in this
scenario are swallowed because the process running functionality in
common.py redirects stderr to /dev/null by default. This seems like
a bug, but a bug for another day.

This commit establishes a config option to send the rename limit
through to `git diff-tree`. The added tests demonstrate a too-low
rename limit doesn't result in copy metadata being recorded.

30645:a3f335d1247c

                    while detecting copies, look at all files in the working
                    copy instead of just changed ones. This is very expensive
                    for large projects, and is only effective when
                    "convert.git.similarity" is greater than 0. The default is
                    False.
      convert.git.remoteprefix
                    remote refs are converted as bookmarks with
                    "convert.git.remoteprefix" as a prefix followed by a /. The
                    default is 'remote'.
      convert.git.skipsubmodules

30646:ea3540e66fd8

                    while detecting copies, look at all files in the working
                    copy instead of just changed ones. This is very expensive
                    for large projects, and is only effective when
                    "convert.git.similarity" is greater than 0. The default is
                    False.
      convert.git.renamelimit
                    perform rename and copy detection up to this many changed
                    files in a commit. Increasing this will make rename and copy
                    detection more accurate but will significantly slow down
                    computation on large projects. The option is only relevant
                    if "convert.git.similarity" is greater than 0. The default
                    is "400".
      convert.git.remoteprefix
                    remote refs are converted as bookmarks with
                    "convert.git.remoteprefix" as a prefix followed by a /. The
                    default is 'remote'.
      convert.git.skipsubmodules