1021 lines
29 KiB
Groff
1021 lines
29 KiB
Groff
.\" vim: set spell so=8:
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.TH yadm 1 "8 November 2024" "3.3.0"
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.SH NAME
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yadm \- Yet Another Dotfiles Manager
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.SH SYNOPSIS
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.B yadm
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.I command
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.RI [ options ]
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.B yadm
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.I git-command-or-alias
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.RI [ options ]
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.B yadm
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init
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.RB [ -f ]
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.RB [ -w
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.IR dir ]
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.B yadm
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.RI clone " url
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.RB [ -f ]
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.RB [ -w
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.IR dir ]
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.RB [ -b
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.IR branch ]
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.RB [ --bootstrap ]
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.RB [ --no-bootstrap ]
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.B yadm
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.RI config " name
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.RI [ value ]
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.B yadm
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config
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.RB [ -e ]
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.B yadm
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list
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.RB [ -a ]
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.BR yadm " bootstrap
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.BR yadm " encrypt
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.BR yadm " decrypt
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.RB [ -l ]
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.BR yadm " alt
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.BR yadm " perms
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.BR yadm " enter [ command ]
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.BR yadm " git-crypt [ options ]
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.BR yadm " transcrypt [ options ]
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.BR yadm " upgrade
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.RB [ -f ]
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.BR yadm " introspect
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.I category
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.SH DESCRIPTION
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yadm is a tool for managing a collection of files across multiple computers,
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using a shared Git repository.
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In addition, yadm provides a feature to select alternate versions of files for
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particular systems.
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Lastly, yadm supplies the ability to manage a subset of secure files, which are
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encrypted before they are included in the repository.
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.SH COMMANDS
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.TP
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.IR git-command " or " git-alias
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Any command not internally handled by yadm is passed through to
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.BR git (1).
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Git commands or aliases are invoked with the yadm managed repository.
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The working directory for Git commands will be the configured
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.IR work-tree " (usually
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.IR $HOME ).
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Dotfiles are managed by using standard
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.B git
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commands;
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.IR add ,
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.IR commit ,
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.IR push ,
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.IR pull ,
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etc.
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.RI The " config
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command is not passed directly through.
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Instead use the
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.I gitconfig
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command (see below).
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.TP
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.B alt
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Create symbolic links and process templates for any managed files matching the
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naming rules described in the ALTERNATES and TEMPLATES sections. It is usually
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unnecessary to run this command, as yadm automatically processes alternates by
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default. This automatic behavior can be disabled by setting the configuration
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.I yadm.auto-alt
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to "false".
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.TP
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.B bootstrap
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Execute
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.I $HOME/.config/yadm/bootstrap
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if it exists.
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.TP
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.BI clone " url
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Clone a remote repository for tracking dotfiles.
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After the contents of the remote repository have been fetched, a "check out" of
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the remote HEAD branch is attempted.
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If there are conflicting files already present in the
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.IR work-tree ,
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the local version will be left unmodified and you'll have to review and resolve
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the difference.
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The repository is stored in
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.IR $HOME/.local/share/yadm/repo.git .
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By default,
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.I $HOME
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will be used as the
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.IR work-tree ,
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but this can be overridden with the
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.BR -w " option.
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yadm can be forced to overwrite an existing repository by providing the
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.BR -f " option.
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If you want to use a branch other than the remote HEAD branch
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you can specify it using the
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.BR -b " option.
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By default yadm will ask the user if the bootstrap program should be run (if it
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exists). The options
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.BR --bootstrap " or " --no-bootstrap
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will either force the bootstrap to be run, or prevent it from being run,
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without prompting the user.
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.TP
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.B config
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This command manages configurations for yadm.
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This command works exactly the way
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.BR git-config (1)
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does.
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See the CONFIGURATION section for more details.
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.TP
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.B decrypt
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Decrypt all files stored in
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.IR $HOME/.local/share/yadm/archive .
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Files decrypted will be relative to the configured
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.IR work-tree " (usually
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.IR $HOME ).
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Using the
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.B -l
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option will list the files stored without extracting them.
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.TP
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.B encrypt
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Encrypt all files matching the patterns found in
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.IR $HOME/.config/yadm/encrypt .
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See the ENCRYPTION section for more details.
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.TP
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.B enter
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Run a sub-shell with all Git variables set. Exit the sub-shell the same way you
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leave your normal shell (usually with the "exit" command). This sub-shell can
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be used to easily interact with your yadm repository using "git" commands. This
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could be useful if you are using a tool which uses Git directly, such as tig,
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vim-fugitive, git-cola, etc.
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Optionally, you can provide a command after "enter", and instead of invoking
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your shell, that command will be run with all of the Git variables exposed to
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the command's environment.
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Emacs Tramp and Magit can manage files by using this configuration:
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.RS
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(add-to-list 'tramp-methods
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'("yadm"
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(tramp-login-program "yadm")
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(tramp-login-args (("enter")))
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(tramp-login-env (("SHELL") ("/bin/sh")))
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(tramp-remote-shell "/bin/sh")
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(tramp-remote-shell-args ("-c"))))
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.RE
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.RS
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With this config, use (magit-status "/yadm::").
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.RE
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.TP
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.BI git-crypt " options
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If git-crypt is installed, this command allows you to pass options directly to
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git-crypt, with the environment configured to use the yadm repository.
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git-crypt enables transparent encryption and decryption of files in a git repository.
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You can read
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https://github.com/AGWA/git-crypt
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for details.
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.TP
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.B gitconfig
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Pass options to the
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.B git config
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command. Since yadm already uses the
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.I config
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command to manage its own configurations,
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this command is provided as a way to change configurations of the repository
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managed by yadm.
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One useful case might be to configure the repository so untracked files are
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shown in status commands. yadm initially configures its repository so that
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untracked files are not shown.
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If you wish use the default Git behavior (to show untracked files and
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directories), you can remove this configuration.
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.RS
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.RS
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yadm gitconfig --unset status.showUntrackedFiles
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.RE
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.RE
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.TP
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.B help
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Print a summary of yadm commands.
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.TP
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.B init
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Initialize a new, empty repository for tracking dotfiles.
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The repository is stored in
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.IR $HOME/.local/share/yadm/repo.git .
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By default,
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.I $HOME
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will be used as the
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.IR work-tree ,
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but this can be overridden with the
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.BR -w " option.
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yadm can be forced to overwrite an existing repository by providing the
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.BR -f " option.
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.TP
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.B list
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Print a list of files managed by yadm.
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.RB The " -a
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option will cause all managed files to be listed.
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Otherwise, the list will only include files from the current directory or below.
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.TP
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.BI introspect " category
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Report internal yadm data. Supported categories are
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.IR commands ,
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.IR configs ,
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.IR repo,
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and
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.IR switches .
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The purpose of introspection is to support command line completion.
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.TP
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.B perms
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Update permissions as described in the PERMISSIONS section.
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It is usually unnecessary to run this command, as yadm automatically processes
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permissions by default. This automatic behavior can be disabled by setting the
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configuration
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.I yadm.auto-perms
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to "false".
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.TP
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.BI transcrypt " options
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If transcrypt is installed, this command allows you to pass options directly to
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transcrypt, with the environment configured to use the yadm repository.
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transcrypt enables transparent encryption and decryption of files in a git repository.
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You can read
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https://github.com/elasticdog/transcrypt
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for details.
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.TP
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.B upgrade
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Version 3 of yadm uses a different directory for storing data.
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When you start to use version 3 for the first time, you may see warnings about
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moving your data to this new directory.
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The easiest way to accomplish this is by running "yadm upgrade".
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This command will start by moving your yadm repo to the new path.
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Next it will move any archive data.
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If the archive is tracked within your yadm repo, this command will
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"stage" the renaming of that file in the repo's index.
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Upgrading will attempt to de-initialize and re-initialize your submodules. If
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your submodules cannot be de-initialized, the upgrade will fail. The most
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common reason submodules will fail to de-initialize is because they have local
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modifications. If you are willing to lose the local modifications to those
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submodules, you can use the
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.B -f
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option with the "upgrade" command to force the de-initialization.
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After running "yadm upgrade", you should run "yadm status" to review changes
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which have been staged, and commit them to your repository.
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You can read
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https://yadm.io/docs/upgrade_from_2
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for more information.
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.TP
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.B version
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Print the version of yadm.
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.SH OPTIONS
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yadm supports a set of universal options that alter the paths it uses. The
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default paths are documented in the FILES section. Any path specified by these
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options must be fully qualified. If you always want to override one or more of
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these paths, it may be useful to create an alias for the yadm command.
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For example, the following alias could be used to override the repository
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directory.
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.RS
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alias yadm='yadm --yadm-repo /alternate/path/to/repo'
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.RE
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The following is the full list of universal options.
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Each option should be followed by a path.
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.TP
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.B -Y,--yadm-dir
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Override the yadm directory.
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yadm stores its configurations relative to this directory.
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.TP
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.B --yadm-data
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Override the yadm data directory.
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yadm stores its data relative to this directory.
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.TP
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.B --yadm-repo
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Override the location of the yadm repository.
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.TP
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.B --yadm-config
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Override the location of the yadm configuration file.
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.TP
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.B --yadm-encrypt
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Override the location of the yadm encryption configuration.
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.TP
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.B --yadm-archive
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Override the location of the yadm encrypted files archive.
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.TP
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.B --yadm-bootstrap
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Override the location of the yadm bootstrap program.
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.SH CONFIGURATION
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yadm uses a configuration file named
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.IR $HOME/.config/yadm/config .
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This file uses the same format as
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.BR git-config (1).
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Also, you can control the contents of the configuration file
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via the
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.B yadm config
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command (which works exactly like
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.BR git-config ).
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For example, to disable alternates you can run the command:
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.RS
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yadm config yadm.auto-alt false
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.RE
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The following is the full list of supported configurations:
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.TP
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.B yadm.alt-copy
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If set to "true", alternate files will be copies instead of symbolic links.
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This might be desirable, because some systems may not properly support
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symlinks.
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.TP
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.B yadm.auto-alt
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Disable the automatic linking described in the section ALTERNATES. If disabled,
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you may still run "yadm alt" manually to create the alternate links. This
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feature is enabled by default.
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.TP
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.B yadm.auto-exclude
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Disable the automatic exclusion of patterns defined in
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.IR $HOME/.config/yadm/encrypt .
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This feature is enabled by default.
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.TP
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.B yadm.auto-perms
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Disable the automatic permission changes described in the section PERMISSIONS.
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If disabled, you may still run
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.B yadm perms
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manually to update permissions.
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This feature is enabled by default.
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.TP
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.B yadm.auto-private-dirs
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Disable the automatic creating of private directories described in the section PERMISSIONS.
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.TP
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.B yadm.cipher
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Configure which encryption system is used by the encrypt/decrypt commands.
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Valid options are "gpg" and "openssl". The default is "gpg".
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Detailed information can be found in the section ENCRYPTION.
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.TP
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.B yadm.git-program
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Specify an alternate program to use instead of "git".
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By default, the first "git" found in $PATH is used.
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.TP
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.B yadm.gpg-perms
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Disable the permission changes to
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.IR $HOME/.gnupg/* .
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This feature is enabled by default.
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.TP
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.B yadm.gpg-program
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Specify an alternate program to use instead of "gpg".
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By default, the first "gpg" found in $PATH is used.
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.TP
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.B yadm.gpg-recipient
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Asymmetrically encrypt files with a gpg public/private key pair.
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Provide a "key ID" to specify which public key to encrypt with.
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The key must exist in your public keyrings.
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Multiple recipients can be specified (separated by space).
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If left blank or not provided, symmetric encryption is used instead.
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If set to "ASK", gpg will interactively ask for recipients.
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See the ENCRYPTION section for more details.
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This feature is disabled by default.
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.TP
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.B yadm.openssl-ciphername
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Specify which cipher should be used by openssl.
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"aes-256-cbc" is used by default.
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.TP
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.B yadm.openssl-old
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Newer versions of openssl support the pbkdf2 key derivation function. This is
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used by default. If this configuration is set to "true", openssl operations
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will use options compatible with older versions of openssl. If you change this
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option, you will need to recreate your encrypted archive.
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.TP
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.B yadm.openssl-program
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Specify an alternate program to use instead of "openssl".
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By default, the first "openssl" found in $PATH is used.
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.TP
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.B yadm.ssh-perms
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Disable the permission changes to
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.IR $HOME/.ssh/* .
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This feature is enabled by default.
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.RE
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The following "local" configurations are not stored in the
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.IR $HOME/.config/yadm/config,
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they are stored in the local repository.
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.TP
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.B local.class
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Specify a class for the purpose of symlinking alternate files.
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By default, no class will be matched.
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The local host can be assigned multiple classes using command:
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.RS
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yadm config --add local.class <additional-class>
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.RE
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.TP
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.B local.arch
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Override the architecture for the purpose of symlinking alternate files.
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.TP
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.B local.hostname
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Override the hostname for the purpose of symlinking alternate files.
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.TP
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.B local.os
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Override the OS for the purpose of symlinking alternate files.
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.TP
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.B local.user
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Override the user for the purpose of symlinking alternate files.
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.TP
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.B local.distro
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Override the distro for the purpose of symlinking alternate files.
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.TP
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.B local.distro-family
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Override the distro family for the purpose of symlinking alternate files.
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.SH ALTERNATES
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When managing a set of files across different systems, it can be useful to have
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an automated way of choosing an alternate version of a file for a different
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operating system, host, user, etc.
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yadm will automatically create a symbolic link to the appropriate version of a
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file, when a valid suffix is appended to the filename. The suffix contains
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the conditions that must be met for that file to be used.
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The suffix begins with "##", followed by any number of conditions separated by
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commas.
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##<condition>[,<condition>,...]
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Each condition is an attribute/value pair, separated by a period. Some
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conditions do not require a "value", and in that case, the period and value can
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be omitted. Most attributes can be abbreviated as a single letter.
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<attribute>[.<value>]
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.BR NOTE :
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Value is compared case-insensitive.
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These are the supported attributes, in the order of the weighted precedence:
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.TP
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.BR template , " t
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Valid when the value matches a supported template processor.
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See the TEMPLATES section for more details.
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.TP
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.BR user , " u
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Valid if the value matches the current user.
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Current user is calculated by running
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.BR "id -u -n" .
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.TP
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.BR hostname , " h
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Valid if the value matches the short hostname.
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Hostname is calculated by running
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.BR "uname -n" ,
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and trimming off any domain.
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.TP
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.BR class , " c
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Valid if the value matches the
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.B local.class
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configuration.
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Class must be manually set using
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.BR "yadm config local.class <class>" .
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See the CONFIGURATION section for more details about setting
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.BR local.class .
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.TP
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.BR distro , " d
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Valid if the value matches the distro.
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Distro is calculated by running
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.B "lsb_release -si"
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or by inspecting the ID from
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.BR "/etc/os-release" .
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.TP
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.BR distro_family , " f
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Valid if the value matches the distro family.
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Distro family is calculated by inspecting the ID_LIKE line from
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.B "/etc/os-release"
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(or ID if no ID_LIKE line is found).
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.TP
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.BR os , " o
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Valid if the value matches the OS.
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OS is calculated by running
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.BR "uname -s" .
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.TP
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.BR arch , " a
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Valid if the value matches the architecture.
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Architecture is calculated by running
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.BR "uname -m" .
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.TP
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.B default
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Valid when no other alternate is valid.
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.TP
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.BR extension , " e
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A special "condition" that doesn't affect the selection process. Its purpose is
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instead to allow the alternate file to end with a certain extension to
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e.g. make editors highlight the content properly.
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.LP
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.BR NOTE :
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The OS for "Windows Subsystem for Linux" is reported as "WSL", even
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though uname identifies as "Linux".
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You may use any number of conditions, in any order.
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An alternate will only be used if ALL conditions are valid.
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For all files managed by yadm's repository or listed in
|
|
.IR $HOME/.config/yadm/encrypt ,
|
|
if they match this naming convention,
|
|
symbolic links will be created for the most appropriate version.
|
|
|
|
The "most appropriate" version is determined by calculating a score for each
|
|
version of a file. A template is always scored higher than any symlink
|
|
condition. The number of conditions is the next largest factor in scoring.
|
|
Files with more conditions will always be favored. Any invalid condition will
|
|
disqualify that file completely.
|
|
|
|
If you don't care to have all versions of alternates stored in the same
|
|
directory as the generated symlink, you can place them in the
|
|
.I $HOME/.config/yadm/alt
|
|
directory. The generated symlink or processed template will be created using
|
|
the same relative path.
|
|
|
|
Alternate linking may best be demonstrated by example. Assume the following
|
|
files are managed by yadm's repository:
|
|
|
|
- $HOME/path/example.txt##default
|
|
- $HOME/path/example.txt##class.Work
|
|
- $HOME/path/example.txt##os.Darwin
|
|
- $HOME/path/example.txt##os.Darwin,hostname.host1
|
|
- $HOME/path/example.txt##os.Darwin,hostname.host2
|
|
- $HOME/path/example.txt##os.Linux
|
|
- $HOME/path/example.txt##os.Linux,hostname.host1
|
|
- $HOME/path/example.txt##os.Linux,hostname.host2
|
|
|
|
If running on a Macbook named "host2",
|
|
yadm will create a symbolic link which looks like this:
|
|
|
|
.IR $HOME/path/example.txt " -> " $HOME/path/example.txt##os.Darwin,hostname.host2
|
|
|
|
However, on another Mackbook named "host3", yadm will create a symbolic link
|
|
which looks like this:
|
|
|
|
.IR $HOME/path/example.txt " -> " $HOME/path/example.txt##os.Darwin
|
|
|
|
Since the hostname doesn't match any of the managed files, the more generic version is chosen.
|
|
|
|
If running on a Linux server named "host4", the link will be:
|
|
|
|
.IR $HOME/path/example.txt " -> " $HOME/path/example.txt##os.Linux
|
|
|
|
If running on a Solaris server, the link will use the default version:
|
|
|
|
.IR $HOME/path/example.txt " -> " $HOME/path/example.txt##default
|
|
|
|
If running on a system, with class set to "Work", the link will be:
|
|
|
|
.IR $HOME/path/example.txt " -> " $HOME/path/example.txt##class.Work
|
|
|
|
If no "##default" version exists and no files have valid conditions, then no
|
|
link will be created.
|
|
|
|
Links are also created for directories named this way, as long as they have at
|
|
least one yadm managed file within them.
|
|
|
|
yadm will automatically create these links by default. This can be disabled
|
|
using the
|
|
.I yadm.auto-alt
|
|
configuration.
|
|
Even if disabled, links can be manually created by running
|
|
.BR "yadm alt" .
|
|
|
|
Class is a special value which is stored locally on each host (inside the local
|
|
repository). To use alternate symlinks using class, you must set the value of
|
|
class using the configuration
|
|
.BR local.class .
|
|
This is set like any other yadm configuration with the
|
|
.B yadm config
|
|
command. The following sets the class to be "Work".
|
|
|
|
yadm config local.class Work
|
|
|
|
Similarly, the values of architecture, os, hostname, user, distro, and
|
|
distro_family can be manually overridden using the configuration options
|
|
.BR local.arch ,
|
|
.BR local.os ,
|
|
.BR local.hostname ,
|
|
.BR local.user ,
|
|
.BR local.distro ,
|
|
and
|
|
.BR local.distro-family .
|
|
|
|
.SH TEMPLATES
|
|
|
|
If a template condition is defined in an alternate file's "##" suffix, and the
|
|
necessary dependencies for the template are available, then the file will be
|
|
processed to create or overwrite files.
|
|
|
|
Supported template processors:
|
|
.TP
|
|
.B default
|
|
This is yadm's built-in template processor. This processor is very basic, with
|
|
a Jinja-like syntax. The advantage of this processor is that it only depends
|
|
upon
|
|
.BR awk ,
|
|
which is available on most *nix systems. To use this processor,
|
|
specify the value of "default" or just leave the value off (e.g. "##template").
|
|
|
|
.BR NOTE :
|
|
This template processor performs case-insensitive comparisions in if statements.
|
|
.TP
|
|
.B ESH
|
|
ESH is a template processor written in POSIX compliant shell. It allows
|
|
executing shell commands within templates. This can be used to reference your
|
|
own configurations within templates, for example:
|
|
|
|
<% yadm config mysection.myconfig %>
|
|
|
|
To use the ESH template processor, specify the value of "esh"
|
|
.TP
|
|
.B j2cli
|
|
To use the j2cli Jinja template processor, specify the value of "j2" or
|
|
"j2cli".
|
|
.TP
|
|
.B envtpl
|
|
To use the envtpl Jinja template processor, specify the value of "j2" or "envtpl".
|
|
.LP
|
|
|
|
.BR NOTE :
|
|
Specifying "j2" as the processor will attempt to use j2cli or envtpl, whichever
|
|
is available.
|
|
|
|
If the template processor specified is available, templates will be processed
|
|
to create or overwrite files.
|
|
|
|
During processing, the following variables are available in the template:
|
|
|
|
Default Jinja or ESH Description
|
|
------------- ------------- ----------------------------
|
|
yadm.arch YADM_ARCH uname -m
|
|
yadm.class YADM_CLASS Last locally defined class
|
|
yadm.classes YADM_CLASSES All classes
|
|
yadm.distro YADM_DISTRO lsb_release -si
|
|
yadm.distro_family YADM_DISTRO_FAMILY ID_LIKE from /etc/os-release
|
|
yadm.hostname YADM_HOSTNAME uname -n (without domain)
|
|
yadm.os YADM_OS uname -s
|
|
yadm.source YADM_SOURCE Template filename
|
|
yadm.user YADM_USER id -u -n
|
|
env.VAR Environment variable VAR
|
|
|
|
.BR NOTE :
|
|
The OS for "Windows Subsystem for Linux" is reported as "WSL", even
|
|
though uname identifies as "Linux".
|
|
|
|
.BR NOTE :
|
|
If lsb_release is not available, DISTRO will be the ID specified in
|
|
/etc/os-release.
|
|
|
|
Examples:
|
|
|
|
.I whatever##template
|
|
with the following content
|
|
|
|
{% if yadm.user == "harvey" %}
|
|
config={{yadm.class}}-{{yadm.os}}
|
|
{% else %}
|
|
config=dev-whatever
|
|
{% include "whatever.extra" %}
|
|
{% endif %}
|
|
|
|
would output a file named
|
|
.I whatever
|
|
with the following content if the user is "harvey":
|
|
|
|
config=work-Linux
|
|
|
|
and the following otherwise (if
|
|
.I whatever.extra
|
|
contains admin=false):
|
|
|
|
config=dev-whatever
|
|
admin=false
|
|
|
|
An equivalent Jinja template named
|
|
.I whatever##template.j2
|
|
would look like:
|
|
|
|
{% if YADM_USER == 'harvey' -%}
|
|
config={{YADM_CLASS}}-{{YADM_OS}}
|
|
{% else -%}
|
|
config=dev-whatever
|
|
{% include 'whatever.extra' %}
|
|
{% endif -%}
|
|
|
|
An equivalent ESH templated named
|
|
.I whatever##template.esh
|
|
would look like:
|
|
|
|
<% if [ "$YADM_USER" = "harvey" ]; then -%>
|
|
config=<%= $YADM_CLASS %>-<%= $YADM_OS %>
|
|
<% else -%>
|
|
config=dev-whatever
|
|
<%+ whatever.extra %>
|
|
<% fi -%>
|
|
|
|
.SH ENCRYPTION
|
|
|
|
It can be useful to manage confidential files, like SSH or GPG keys, across
|
|
multiple systems. However, doing so would put plain text data into a Git
|
|
repository, which often resides on a public system. yadm can make it easy to
|
|
encrypt and decrypt a set of files so the encrypted version can be maintained
|
|
in the Git repository.
|
|
This feature will only work if a supported tool is available.
|
|
Both
|
|
.BR gpg (1)
|
|
and
|
|
.BR openssl (1)
|
|
are supported.
|
|
gpg is used by default, but openssl can be configured with the
|
|
.I yadm.cipher
|
|
configuration.
|
|
|
|
To use this feature, a list of patterns must be created and saved as
|
|
.IR $HOME/.config/yadm/encrypt .
|
|
This list of patterns should be relative to the configured
|
|
.IR work-tree " (usually
|
|
.IR $HOME ).
|
|
For example:
|
|
|
|
.RS
|
|
.ssh/*.key
|
|
.gnupg/*.gpg
|
|
.RE
|
|
|
|
Standard filename expansions (*, ?, [) are supported.
|
|
If you have Bash version 4, you may use "**" to match all subdirectories.
|
|
Other shell expansions like brace and tilde are not supported.
|
|
Spaces in paths are supported, and should not be quoted.
|
|
If a directory is specified, its contents will be included, but not recursively.
|
|
Paths beginning with a "!" will be excluded.
|
|
|
|
The
|
|
.B yadm encrypt
|
|
command will find all files matching the patterns, and prompt for a password. Once a
|
|
password has confirmed, the matching files will be encrypted and saved as
|
|
.IR $HOME/.local/share/yadm/archive .
|
|
The "encrypt" and "archive" files should be added to the yadm repository so they are
|
|
available across multiple systems.
|
|
|
|
To decrypt these files later, or on another system run
|
|
.B yadm decrypt
|
|
and provide the correct password.
|
|
After files are decrypted, permissions are automatically updated as described
|
|
in the PERMISSIONS section.
|
|
|
|
Symmetric encryption is used by default, but asymmetric encryption may be
|
|
enabled using the
|
|
.I yadm.gpg-recipient
|
|
configuration.
|
|
|
|
.BR NOTE :
|
|
It is recommended that you use a private repository when keeping confidential
|
|
files, even though they are encrypted.
|
|
|
|
Patterns found in
|
|
.I $HOME/.config/yadm/encrypt
|
|
are automatically added to the repository's
|
|
.I info/exclude
|
|
file every time
|
|
.B yadm encrypt
|
|
is run.
|
|
This is to prevent accidentally committing sensitive data to the repository.
|
|
This can be disabled using the
|
|
.I yadm.auto-exclude
|
|
configuration.
|
|
|
|
.B Using transcrypt or git-crypt
|
|
|
|
A completely separate option for encrypting data is to install and use
|
|
transcrypt or git-crypt.
|
|
Once installed, you can use these tools by running
|
|
.B "yadm transcrypt"
|
|
or
|
|
.BR "yadm git-crypt" .
|
|
These tools enables transparent encryption and decryption of files in a git
|
|
repository. See the following web sites for more information:
|
|
|
|
- https://github.com/elasticdog/transcrypt
|
|
|
|
- https://github.com/AGWA/git-crypt
|
|
.LP
|
|
|
|
.SH PERMISSIONS
|
|
|
|
When files are checked out of a Git repository, their initial permissions are
|
|
dependent upon the user's umask. Because of this, yadm will automatically
|
|
update the permissions of some file paths. The "group" and "others" permissions
|
|
will be removed from the following files:
|
|
|
|
.RI - " $HOME/.local/share/yadm/archive
|
|
|
|
- All files matching patterns in
|
|
.I $HOME/.config/yadm/encrypt
|
|
|
|
- The SSH directory and files,
|
|
.I .ssh/*
|
|
|
|
- The GPG directory and files,
|
|
.I .gnupg/*
|
|
|
|
yadm will automatically update permissions by default. This can be disabled
|
|
using the
|
|
.I yadm.auto-perms
|
|
configuration. Even if disabled, permissions can be manually updated by running
|
|
.BR "yadm perms" .
|
|
The
|
|
.I .ssh
|
|
directory processing can be disabled using the
|
|
.I yadm.ssh-perms
|
|
configuration. The
|
|
.I .gnupg
|
|
directory processing can be disabled using the
|
|
.I yadm.gpg-perms
|
|
configuration.
|
|
|
|
When cloning a repo which includes data in a
|
|
.IR .ssh " or " .gnupg
|
|
directory, if those directories do not exist at the time of cloning, yadm will
|
|
create the directories with mask 0700 prior to merging the fetched data into
|
|
the work-tree.
|
|
|
|
When running a Git command and
|
|
.IR .ssh " or " .gnupg
|
|
directories do not exist, yadm will create those directories with mask 0700
|
|
prior to running the Git command. This can be disabled using the
|
|
.I yadm.auto-private-dirs
|
|
configuration.
|
|
|
|
.SH HOOKS
|
|
|
|
For every command yadm supports, a program can be provided to run before or
|
|
after that command. These are referred to as "hooks". yadm looks for hooks in
|
|
the directory
|
|
.IR $HOME/.config/yadm/hooks .
|
|
Each hook is named using a prefix of
|
|
.I pre_
|
|
or
|
|
.IR post_ ,
|
|
followed by the command which should trigger the hook. For
|
|
example, to create a hook which is run after every
|
|
.I yadm pull
|
|
command, create a hook named
|
|
.IR post_pull.
|
|
Hooks must have the executable file permission set.
|
|
|
|
If a
|
|
.I pre_
|
|
hook is defined, and the hook terminates with a non-zero exit status, yadm will
|
|
refuse to run the yadm command. For example, if a
|
|
.I pre_commit
|
|
hook is defined, but that command ends with a non-zero exit status, the
|
|
.I yadm commit
|
|
will never be run. This allows one to "short-circuit" any operation using a
|
|
.I pre_
|
|
hook.
|
|
|
|
Hooks have the following environment variables available to them at runtime:
|
|
.TP
|
|
.B YADM_HOOK_COMMAND
|
|
The command which triggered the hook
|
|
.TP
|
|
.B YADM_HOOK_EXIT
|
|
The exit status of the yadm command
|
|
.TP
|
|
.B YADM_HOOK_FULL_COMMAND
|
|
The yadm command with all command line arguments (parameters are space
|
|
delimited, and any space, tab or backslash will be escaped with a backslash)
|
|
.TP
|
|
.B YADM_HOOK_REPO
|
|
The path to the yadm repository
|
|
.TP
|
|
.B YADM_HOOK_WORK
|
|
The path to the work-tree
|
|
|
|
.SH FILES
|
|
|
|
All of yadm's configurations are relative to the "yadm directory".
|
|
yadm uses the "XDG Base Directory Specification" to determine this directory.
|
|
If the environment variable
|
|
.B $XDG_CONFIG_HOME
|
|
is defined as a fully qualified path, this directory will be
|
|
.IR "$XDG_CONFIG_HOME/yadm" .
|
|
Otherwise it will be
|
|
.IR "$HOME/.config/yadm" .
|
|
|
|
Similarly, yadm's data files are relative to the "yadm data directory".
|
|
yadm uses the "XDG Base Directory Specification" to determine this directory.
|
|
If the environment variable
|
|
.B $XDG_DATA_HOME
|
|
is defined as a fully qualified path, this directory will be
|
|
.IR "$XDG_DATA_HOME/yadm" .
|
|
Otherwise it will be
|
|
.IR "$HOME/.local/share/yadm" .
|
|
|
|
The following are the default paths yadm uses for its own data.
|
|
Most of these paths can be altered using universal options.
|
|
See the OPTIONS section for details.
|
|
.TP
|
|
.I $HOME/.config/yadm
|
|
The yadm directory. By default, all configs yadm stores is relative to this
|
|
directory.
|
|
.TP
|
|
.I $HOME/.local/share/yadm
|
|
The yadm data directory. By default, all data yadm stores is relative to this
|
|
directory.
|
|
.TP
|
|
.I $YADM_DIR/config
|
|
Configuration file for yadm.
|
|
.TP
|
|
.I $YADM_DIR/alt
|
|
This is a directory to keep "alternate files" without having them side-by-side
|
|
with the resulting symlink or processed template. Alternate files placed in
|
|
this directory will be created relative to $HOME instead.
|
|
.TP
|
|
.I $YADM_DATA/repo.git
|
|
Git repository used by yadm.
|
|
.TP
|
|
.I $YADM_DIR/encrypt
|
|
List of globs used for encrypt/decrypt
|
|
.TP
|
|
.I $YADM_DATA/archive
|
|
All files encrypted with
|
|
.B yadm encrypt
|
|
are stored in this file.
|
|
|
|
.SH EXAMPLES
|
|
|
|
.TP
|
|
.B yadm init
|
|
Create an empty repo for managing files
|
|
.TP
|
|
.B yadm add .bash_profile ; yadm commit
|
|
Add
|
|
.I .bash_profile
|
|
to the Git index and create a new commit
|
|
.TP
|
|
.B yadm remote add origin <url>
|
|
Add a remote origin to an existing repository
|
|
.TP
|
|
.B yadm push -u origin master
|
|
Initial push of master to origin
|
|
.TP
|
|
.B echo ".ssh/*.key" >> $HOME/.config/yadm/encrypt
|
|
Add a new pattern to the list of encrypted files
|
|
.TP
|
|
.B yadm encrypt ; yadm add ~/.local/share/yadm/archive ; yadm commit
|
|
Commit a new set of encrypted files
|
|
|
|
.SH REPORTING BUGS
|
|
|
|
Report issues or create pull requests at GitHub:
|
|
|
|
https://github.com/yadm-dev/yadm/issues
|
|
|
|
.SH AUTHOR
|
|
|
|
Tim Byrne <sultan@locehilios.com>
|
|
|
|
.SH SEE ALSO
|
|
|
|
.BR git (1),
|
|
.BR gpg (1)
|
|
.BR openssl (1)
|
|
.BR transcrypt (1)
|
|
.BR git-crypt (1)
|
|
|
|
https://yadm.io/
|