• test: scm: convert to dir helpers (#3116) @efiop
• get: refactor handling of git files and git-only repos (#3114) @efiop
• test: get_url: convert to dir helpers (#3115) @efiop
• test: init: convert to dir helpers (#3117) @efiop
• tests: external_repo: convert to dir helpers (#3118) @efiop
• add space for import help text (#3126) @pared
• test: refactor ssh related functions in test helper classes (#3123) @skshetry
• summon: fixes and dvcx prereq (#3101) @Suor
• gdrive: add support for teamDriveId (#3016) @efiop
• rwlock: flush and fsync (#3076) @efiop
• get: handle non-DVC repositories (#3097) @fabiosantoscode
• run: tests: migrate to dir helpers (#3094) @pared
• state: tests: migrate to dir helpers (#3096) @pared
• update: tests: migrate to dir helpers (#3100) @pared
• stage: tests: migrate to dir helpers (#3099) @pared
• tests: remove redundant native ssh tests (#3104) @efiop
• py3: use links from os module (#3090) @mroutis
• repro: tests: migrate to dir helpers (#3091) @pared
• dvc: optimize Git.is_tracked() (#3053) @Suor
• Move fs utilities to fs.py from init.py (#3093) @algomaster99
• import url: test: migrate to dir helpers (#3072) @pared
• output: tests: migrate to dir helpers (#3083) @pared
• py3: remove code related to py2 limitations (#3034) @mroutis
• remote: test: migrate to dir helpers (#3086) @pared
• pipeline: test: migrate to dir helpers (#3085) @pared
• install: tests: migrate to dir helpers (#3074) @pared
• setup: get rid of py2 reqs (#3082) @efiop
• py3: use format_exc instead of print_exception (#3078) @mroutis
• rwlock: check that .dvc/lock is locked (#3075) @efiop
• ui: warn about ignored options for dvc status and a grammar fix (#3027) @Suor
• ui: don't show exception for "Too many files" error (#3058) @efiop
• Write test for walk_files to check if it accepts Path-like and str objects (#3035) @algomaster99
• fix snap deploy stage (#3064) @casperdcl
• dvc: update gc to remove unpacked dir (#3054) @sharidas
• test: merge _should_test_aws and _get_aws_url inside S3 test helper (#3073) @skshetry
• test: merge _should_test_oss and _get_oss_url inside OSS test helper (#3071) @skshetry
• http/ imp tests - migrate do dir helpers (#3070) @pared
• dependency: test: migrate to dir helpers (#3068) @pared
• cache: test: migrate to dir helpers (#3067) @pared
• analytics: tests: migrate to dir helpers (#3066) @pared
• tests: api: convert to dir helpers (#3044) @pared
• Snap classic deployment (#3063) @casperdcl
• completion: fix --relink problem (#3061) @mroutis
• local-related methods should verify that WorkingTree is in use (#3018) @pared
• tests: remote: local: migrate to dir fixtures (#3049) @pared
• import: allow importing from non-DVC git repositories (#3020) @chatcannon
• test: Merge _should_test_azure and _get_azure_url inside Azure test helper (#3055) @skshetry
• test: add _should_test_gdrive and _get_gdrive_url inside GDrive (#3056) @skshetry
• py3: use yield from where appropriate (#3052) @Suor
• test: do not bootstrap repo template and version files in erepo_dir (#3045) @Suor
• dvc: optimize and clean up stages collection (#3048) @Suor
• dvc: autowrap repo tree into CleanTree (#3047) @Suor
• test: add @TmpDir.chdir() (#3043) @Suor
• dvc: clean brancher (#3046) @Suor
• py3: refactor exceptions (#3042) @mroutis
• py3: use new magic from PEP 3135 (#3039) @mroutis
• Restyle fix for base None value (#3041) @restyled-io
• Ensure relpath accepts str and Path-like objects (#3037) @algomaster99
• metrics: don't show working tree if it is clean (#3025) @Suor
• ui: add checkout --relink to autocomplete scripts (#3026) @Suor
• py3: migrate utils/compat.py to compat.py (#3032) @mroutis
• py3: remove imports from utils.compat (#3031) @mroutis
• py3: remove csv_reader and makedirs from utils/compat.py (#3030) @mroutis
• py3: remove methods for casting bytes in python 2 (#3029) @mroutis