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Git

GitHub links

  • Link to the docs site, returns data with the correct Content-Type header:
curl https://${OWNER}.github.io/${NAME}/${PATH}
  • Link to the content from the repository. Returns data without Content-Type header:
curl https://raw.githubusercontent.com/${OWNER}/${NAME}/${BRANCH}/${PATH}
  • Download file from the private repository:
curl https://${TOKEN}@raw.githubusercontent.com/${OWNER}/${NAME}/${BRANCH}/${PATH}
  • Link to the LFS repository content:
curl https://media.githubusercontent.com/media/${OWNER}/${NAME}/${BRANCH}/${PATH}
  • Download release asset:
curl https://github.com/${OWNER}/${NAME}/releases/download/${TAG}/${FILE_NAME}
  • Download branch as archive:
curl https://github.com/${OWNER}/${NAME}/archive/${BRANCH}.tar.gz
  • Download tag as archive:
curl https://github.com/${OWNER}/${NAME}/archive/refs/tags/${TAG}.tar.gz

Move repository

git remote rm origin
git remote add origin $URL
git push origin --all
git push --tags

Rename branch

  • Rename local branch:

    git branch -m old new

  • Rename remote branch:

    # rename remote branch
git push origin :old new

# update local branch upstream
git branch new -u origin/new

Restore deleted file

git checkout $(git rev-list -n 1 HEAD -- "$FILE_PATH")^ -- "$FILE_PATH"

Remove untracked files

# files
git clean --force

# directories
git clean --force -d

Delete commited changesets

git reset --hard $SHA1_COMMIT_ID

If changesets were pushed:

git push origin HEAD --force

Delete file from history

git filter-repo --force --partial --invert-paths --path-match $FILE_PATH

git reflog expire --expire-unreachable=now --all
git gc --prune=now --aggressive

Chmod

Mode: XXXYYY

where:

  • XXX:

    • 100 - regular file
    • 120 - symlink

  • YYY:

    • 644 - rw-r--r--
    • 755 - rwxr-xr-x
# list execulable files
git ls-files --format "%(objectmode) %(path)" | grep "^100755"

# make file in "bin" and "tests" directories executable
git ls-files -z bin tests | xargs -0 git update-index --chmod=+x

# make ".sh" file executable
git ls-files -z *.sh | xargs -0 git update-index --chmod=+x

Encryption with git-crypt

# install
apt install --yes git-crypt

# init
git crypt init

# symmetric key
git crypt export-key secret.git-crypto
git crypt unlock secret.git-crypto

# gpg
git crypt add-gpg-user --trusted $EMAIL
git crypt unlock

Remove all commits, except last

git reset --soft $(git rev-list --max-parents=0 HEAD)
git commit -a --amend -m "chore: init"
git push origin HEAD --force

git reflog expire --expire-unreachable=now --all
git gc --prune=now --aggressive

Sync other clone with updates:

git fetch --all
git reset --hard origin/main

git reflog expire --expire-unreachable=now --all
git gc --prune=now --aggressive

Manage remotes

# create remote "upstream"
git remote add upstream --no-mirror git@github.com:${OWNER}/${NAME}.git

# track "main" branch only
git remote set-branches upstream main

# add tracking branch
git remote set-branches --add upstream $BRANCH_NAME

Sync fork

  • Current repository:

    # sync local "main" branch with the upstream "main" brach
gh repo sync

# sync local "main" branch with the upstream "feat" branch
gh repo sync --branch feat

  • Remote repository:

    # sync remote "main" branch with the upstream "feat" branch
gh repo sync softvisio/test --branch feat

  • Manual sync:

    # fetch changes from the upstream
git fetch upstream

# merge "main" branch with upstream
git sw main
git merge upstream/main