1 Introduction

The Borg assimilate Emacs packages as Git submodules.

Borg is a bare-bones package manager for Emacs packages. It provides only a few essential features and should be combined with other tools such as Magit, epkg, use-package, and auto-compile.

Borg assimilates packages into the ~/.config/emacs ¹ repository as Git submodules. An assimilated package is called a drone and a borg-based ~/.config/emacs repository is called a collective.

It is possible to clone a package repository without assimilating it. A cloned package is called a clone.

To learn more about this project, also read the blog post ² in which it was announced.

2 Installation

Borg can be used by itself, in which case it has to be bootstrapped. This is how Borg originally was intended to be used exclusively, but nowadays you may also choose to use it merely as a secondary package manager, in which case Borg itself is installed using Package.

• Use as secondary package manager
• Bootstrapping

(add-to-list 'package-archives
             (cons "melpa" "https://melpa.org/packages/")
             t)

(custom-set-variables
 '(package-selected-packages '(borg)))

(if (require 'borg-elpa nil t)
    (borg-elpa-initialize)
  (package-initialize))

BORG_SECONDARY_P = true
include $(shell find -L elpa -maxdepth 1 -regex '.*/borg-[.0-9]*' |\
  sort | tail -n 1)/borg.mk

git clone git@github.com:emacscollective/emacs.g.git ~/.config/emacs
cd ~/.config/emacs
make bootstrap-borg
make bootstrap

*.elc
*-autoloads.el
dir

git init ~/.config/emacs
cd ~/.config/emacs

DRONES_DIR = $(shell git config "borg.drones-directory" || echo "lib")

-include $(DRONES_DIR)/borg/borg.mk

bootstrap-borg:
        @git submodule--helper clone --name borg --path $(DRONES_DIR)/borg \
        --url git@github.com:emacscollective/borg.git
        @cd $(DRONES_DIR)/borg; git symbolic-ref HEAD refs/heads/main
        @cd $(DRONES_DIR)/borg; git reset --hard HEAD

git submodule add --name borg git@github.com:emacscollective/borg.git lib/borg

(when (< emacs-major-version 27)
  (setq package-enable-at-startup nil))
(add-to-list 'load-path (expand-file-name "lib/borg" user-emacs-directory))
(require 'borg)
(borg-initialize)

(setq package-enable-at-startup nil)

git commit -m "Assimilate borg"

git submodule add --name closql git@github.com:emacscollective/closql.git lib/closql
git submodule add --name emacsql git@github.com:skeeto/emacsql.git lib/emacsql
git submodule add --name compat git@github.com:emacs-compat/compat.git lib/compat
git submodule add --name llama https://git.sr.ht/~tarsius/llama lib/llama
git submodule add --name epkg git@github.com:emacscollective/epkg.git lib/epkg
git config -f .gitmodules submodule.emacsql.no-byte-compile emacsql-pg.el
echo /epkgs/ >> .gitignore
git add .gitignore .gitmodules
make build
git commit -m "Assimilate epkg and dependencies"

(with-eval-after-load 'magit
  (magit-add-section-hook 'magit-status-sections-hook
                          'magit-insert-modules
                          'magit-insert-stashes
                          'append))

git config --global url.https://github.com/.insteadOf git@github.com:
git config --global url.https://gitlab.com/.insteadOf git@gitlab.com:

(setq borg-rewrite-urls-alist
      '(("git@github.com:" . "https://github.com/")
        ("git@gitlab.com:" . "https://gitlab.com/")))

cd ~/.config/emacs
sed -i "s|git@github.com:|https://github.com/|g" .gitmodules
sed -i "s|git@gitlab.com:|https://gitlab.com/|g" .gitmodules
git commit -m "Use https URLs for Github and Gitlab"

cd ~/.config/emacs
sed -i "s|git@github.com:|https://github.com/|g" .git/config
sed -i "s|git@gitlab.com:|https://gitlab.com/|g" .git/config

3 Startup

The user-init-file, ~/.config/emacs/init.el, has to contain a call to borg-initialize.

You should also set package-enable-at-startup to nil. If you use Emacs 27 or later, then do so in early-init.el, otherwise in init.el.

Function: borg-initialize ¶

This function initializes assimilated drones using borg-activate.

To skip the activation of the drone named DRONE, temporarily disable it by setting the value of the Git variable submodule.DRONE.disabled to true in ~/.config/emacs/.gitmodules.

Command: borg-activate clone ¶

This function activates the clone named CLONE by adding the appropriate directories to the load-path and to Info-directory-list, and by loading the autoloads file, if it exists.

Unlike borg-initialize, this function ignores the Git variable submodule.DRONE.disabled and can be used to activate clones that have not been assimilated.

4 Assimilation

A third-party package is assimilated by adding it as a submodule and, if necessary, by configuring it in ~/.config/emacs/init.el. Built-in packages are assimilated merely by configuring them.

To begin the assimilation of a third-party package use the command borg-assimilate, which adds the package’s repository as a submodule and attempts to build the drone.

A safer alternative is to first clone the package without assimilating it, using borg-clone. This gives you an opportunity to inspect the cloned package for broken or malicious code, before it gets a chance to run arbitrary code. Later you can proceed with the assimilation using borg-assimilate, or remove the clone using borg-remove.

Building the drone can fail, for example due to missing dependencies. Failure to build a drone is not considered as a failure to assimilate. If a build fails, then a buffer containing information about the issue pops up. If the failure is due to unsatisfied dependencies, then assimilate those too, and then build any drone, which previously couldn’t be built, by using the Emacs command borg-build or make lib/DRONE. Alternatively you can just rebuild everything using make build.

If you wish to avoid such complications, you should use the command epkg-describe-package before assimilating a package. Among other useful information, it also provides a dependency tree.

Once the packages have been added as a submodules and the drones have been built, the assimilation is completed by creating an assimilation commit.

If you assimilate a single package, then it is recommended that you use a message similar to this:

Assimilate foo v1.0.0

Or if one or more dependencies had to be assimilated, something like:

Assimilate foo and dependencies

Assimilate foo v1.0.0
Assimilate bar v1.1.0
Assimilate baz v0.1.0

It’s usually a good idea not to assimilate unrelated packages in the same commit, but doing it for related packages, which do not strictly depend on one another, it might make sense:

Assimilate ido and extensions

Assimilate flx               v0.6.1-3-gae0981b
Assimilate ido-at-point      v1.0.0
Assimilate ido-ubiquitous    v3.12-2-g7354d98
Assimilate ido-vertical-mode v0.1.6-33-gb42e422
Assimilate smex               3.0-13-g55aaebe

The command borg-insert-update-message can be used to generate such commit messages.

C-c C-b [in git-commit-mode buffer] (borg-insert-update-message) ¶

This command insert information about drones that are changed in the index. Formatting is according to the commit message conventions described above.

Command: borg-assimilate package url &optional partially ¶

This command assimilates the package named PACKAGE from URL.

If epkg is available, then only the name of the package is read in the minibuffer and the url stored in the Epkg database is used. If epkg is unavailable, the package is not in the database, or if a prefix argument is used, then the url too is read in the minibuffer.

If a negative prefix argument is used, then the submodule is added but the build and activation steps are skipped. This is useful when assimilating a package that requires special build steps. After configuring the build steps use borg-build to complete the assimilation.

Command: borg-clone package url ¶

This command clones the package named PACKAGE from URL, without assimilating it. This is useful when you want to inspect the package before potentially executing malicious or broken code.

Interactively, when the epkg package is available, then the name is read in the minibuffer and the url stored in the Epkg database is used. If epkg is unavailable, the package is unknown, or when a prefix argument is used, then the url is also read in the minibuffer.

Command: borg-remove clone ¶

This command removes the cloned or assimilated package named CLONE, by removing the working tree from borg-drones-directory, regardless of whether that repository belongs to an assimilated package or a package that has only been cloned for review using borg-clone. The Git directory is not removed.

Command: borg-build clone &optional activate ¶

This command builds the clone named CLONE. Interactively, or when optional ACTIVATE is non-nil, then also activate the drone using borg-activate.

Function: borg-update-autoloads clone &optional path ¶

This function updates the autoload file for the libraries belonging to the clone named CLONE in the directories in PATH. PATH can be omitted or contain file-names that are relative to the top-level of CLONE’s repository.

Function: borg-compile clone &optional path ¶

This function compiles the libraries for the clone named CLONE in the directories in PATH. PATH can be omitted or contain file-names that are relative to the top-level of CLONE’s repository.

Function: borg-maketexi clone &optional files ¶

This function generates Texinfo files from certain Org files for the clone named CLONE. Org files that are located on borg-info-path are exported if their names match borg-maketexi-filename-regexp and the TEXINFO_DIR_HEADER export keyword is set in their content.

Function: borg-makeinfo clone ¶

This function generates the Info manuals and the Info index for the clone named CLONE.

Function: borg-batch-rebuild &optional quick ¶

This function rebuilds all assimilated drones in alphabetic order, except for Org which is rebuilt first. After that it also builds the user init files using borg-batch-rebuild-init.

This function is not intended for interactive use; instead it is used by the Make target build described in the following section.

When optional QUICK is non-nil, then this function does not build drones for which submodule.DRONE.build-step is set, assuming that those are the drones that take longer to be built.

Function: borg-batch-rebuild-init ¶

This function builds the init files specified by the Make variable INIT_FILES, or if that is unspecified init.el and LOGIN.el, where LOGIN is the value of the variable user-real-login-name. If a file does not exist, then it is silently ignored.

This function is not intended for interactive use; instead it is used by the Make targets build-init and (indirectly) build, which are described in Make targets.

5 Updating drones

Borg does not provide an update command. By not doing so, it empowers you to update to exactly the commit you wish to update to, instead of to "the" new version.

To determine the drones that you might want to update, visit the Magit status buffer of the ~/.config/emacs repository and press f m to fetch inside all submodules. After you have done so, and provided there actually are any modules with new upstream commits, a section titled "Modules unpulled from @{upstream}" appears.

Each subsection of that section represents a submodule with new upstream commits. Expanding such a subsection lists the new upstream commits. These commits can be visited by pressing RET, and the status buffer of a submodule can be visited by pressing RET while point is inside the heading of the respective submodule section. To return to the status buffer of ~/.config/emacs press q.

Inside the status buffer of a submodule, you can pull the upstream changes as usual, using F u. If you wish you can inspect the changes before doing so. And you can also choose to check out another commit instead of the upstream HEAD.

Once you have "updated" to a new commit, you should also rebuild the drone using the command borg-build. This may fail, e.g., due to new dependencies.

Once you have resolved all issues, you should create an "update commit". You can either create one commit per updated drone or you can create a single commit for all updated drones, which ever you find more appropriate. However it is recommended that you use a message similar to:

Update foo to v1.1.0

Or for multiple packages:

Update 2 drones

Update foo to v1.1.0
Update bar to v1.2.1

The command borg-insert-update-message can be used to generate such commit messages.

To update the Epkg package database use the command epkg-update.

6 Patching drones

By using Borg you can not only make changes to assimilated packages, you can also keep track of those patches and share them with others.

If you created some commits in a drone repository and are the maintainer of the respective package, then you can just push your changes to the "origin" remote.

You don’t have to do this every time you created some commits, but at important checkpoints, such as after creating a release, you should record the changes in the ~/.config/emacs repository. To do so proceed as described in Updating drones.

But for most packages you are not the maintainer and if you create commits for such drones, then you have to create a fork and push there instead. You should configure that remote as the push-remote using git config remote.pushDefault FORK, or by pressing b C M-p in Magit. After you have done that, you can continue to pull from the upstream using F u in Magit and you can also push to your fork using P p.

Of course you should also occasionally record the changes in the ~/.config/emacs repository. Additionally, and ideally when you first fork a drone, you should also record information about your personal remote in the super-repository by setting submodule.DRONE.remote in ~/.config/emacs/.gitmodules.

Variable: submodule.DRONE.remote "NAME URL" ¶

This variable specifies an additional remote named NAME that is fetched from URL. This variable can be specified multiple times. Note that "NAME URL" is a single value and that the two parts of that value are separated by a single space.

make bootstrap automatically adds all remotes that are specified like this to the DRONE repository by setting remote.NAME.url to URL and using the standard value for remote.NAME.fetch.

Variable: borg.pushDefault FORK ¶

This variable specifies a name used for push-remotes. Because this variable can only have one value it is recommended that you use the same name, FORK, for your personal remote in all drone repositories in which you have created patches that haven’t been merged into the upstream repository (yet). A good value may be your username.

For all DRONES for which one value of submodule.DRONE.remote specifies a remote whose NAME matches FORK, make bootstrap automatically configures FORK to be used as the push-remote by setting remote.pushDefault to FORK.

7 Make targets

The following make targets are available by default. To use them you have to be in ~/.config/emacs in a shell. They are implemented in borg.mk, which is part of the borg package.

To show the commands that are run, use V=1 make .... Otherwise only their output is shown.

Help targets

Command: help ¶

This target prints information about most of the following targets.

This is the default target, unless the user sets .DEFAULT_GOAL.

Command: helpall ¶

This target prints information about all of the following targets.

Batch targets

Command: clean ¶

This target removes all byte-code and native files of all drones and config files.

To ensure a clean build, this target should always be run before build, so you might want to add a default target that does just that. To do so, add this to ~/.config/emacs/etc/borg/config.mk:

.DEFAULT_GOAL := all
all: clean build

Command: clean-force ¶

This target removes all byte-code files using find. The clean target on the other hand uses the lisp function borg--batch-clean. Byte-code isn’t always compatible between Emacs releases and this target makes it possible to recover from such an incompatibility.

Command: build ¶

This target byte-compiles Borg and Compat first, followed by all other drones in alphabetic order. After that it also byte-compiles the user init files, like init-build does.

Command: native ¶

This target byte-compiles and natively compiles Borg and Compat first, followed by all other drones in alphabetic order. After that it also byte-compiles the user init files, like init-build does.

Quick batch targets

These targets act on most drones but exclude those for which the Git variable submodule.DRONE.build-step is set. The assumption is that those are the drones that take longer to build.

Command: quick ¶

This target cleans and builds most drones.

It also cleans and builds the init files as described for build.

Command: quick-clean ¶

This target removes all byte-code and native files of most drones It also remove the byte-code files of the config files.

Command: quick-build ¶

This target builds most drones and the config files

It also builds the init files as described for build.

Drone targets

Command: clean/DRONE ¶

This target removes all byte-code and native files belonging to the drone named DRONE.

Command: build/DRONE ¶

This target byte-compiles the drone named DRONE.

lib/DRONE is an alias for this target; or rather DIR/DRONE, where DIR is directory containing the drone submodules.

Command: native/DRONE ¶

This target byte-compiles and natively-compiles the drone named DRONE.

Init file targets

Command: init-clean ¶

This target removes byte-code files for init files.

Command: init-tangle ¶

This target tangles (creates) init.el from init.org. You obviously don’t have to use such a file, if you don’t want to.

Command: init-build ¶

This target byte-compiles the init files specified by the make variable INIT_FILES; or if that is unspecified init.el and LOGIN.el (where LOGIN is the value of the variable user-real-login-name). If an init file does not exist, then that is silently ignored.

If you publish your ~/.config/emacs repository but would like to keep some settings private, then you can do so by putting them in a file ~/.config/emacs/LOGIN.el. The downside of this approach is that you will have to somehow synchronize that file between your machines without checking it into Git.

Bootstrap targets

Command: bootstrap-borg ¶

This target bootstraps borg itself.

Command: bootstrap ¶

This target attempts to bootstrap the drones. To do so it runs git submodule init, borg.sh (which see), and make build.

If an error occurs during the borg.sh phase, then you can just run that command again to process the remaining drones. The drones that have already been bootstrapped or that have previously failed will be skipped. If a drone cannot be cloned from any of the known remotes, then you should temporarily remove it using git submodule deinit lib/DRONE. When done with borg.sh also manually run make build again.

8 Variables

Variable: borg.drones-directory DIRECTORY ¶

This Git variable can be used to override the name of the directory that contains the drone submodules. If specified, the value has to be relative to the top-level directory of the repository.

Note that if you change the value of this variable, then you might have to additionally edit ~/.config/emacs/Makefile.

The values of the following variables are set at startup and should not be changed by the user.

Variable: borg-drones-directory ¶

The value of this constant is the directory beneath which drone submodules are placed. The value is set based on the location of the borg library and the Git variable borg.drones-directory if set, and should not be changed.

Variable: borg-user-emacs-directory ¶

The value of this constant is the directory beneath which additional per-user Emacs-specific files are placed. The value is set based on the location of the borg library and should not be changed. The value is usually the same as that of user-emacs-directory, except when Emacs is started with emacs -q -l /path/to/init.el.

Variable: borg-gitmodules-file ¶

The value of this constant is the .gitmodules file of the super-repository.

The value of this Make variable has to be set in ~/.config/emacs/Makefile.

Variable: INIT​_FILES ¶

A list of init files to be build by the Make targets build and build-init. See Make targets.

The values of these borg-specific Git variables have to be set in the file ~/.config/emacs/.gitmodules. The variables borg.pushDefault and submodule.DRONE.remote are described in Patching drones.

Because most repositories used to maintain Emacs packages follow some common-sense conventions, Borg usually does not have to be told how to build a given drone. Building is done using borg-build, which in turn usually does its work using borg-update-autoloads, borg-compile, borg-maketexi, and borg-makeinfo.

However some packages don’t follow the conventions either because they are too complex to do so, or for the sake of doing it differently. But in either case resistance is futile; by using the following variables you can tell Borg how to build such packages.

Variable: submodule.DRONE.build-step COMMAND ¶

By default drones are built using the lisp functions borg-update-autoloads, borg-compile, borg-maketexi, and borg-makeinfo, but if this variable has one or more values, then DRONE is built using these COMMANDs instead.

Each COMMAND can be one of the default steps, an S-expression, or a shell command. The COMMANDs are executed in the specified order.

If a COMMAND matches one of default steps, then it is evaluated with the appropriate arguments.

If a COMMAND begins with a parenthesis, then it is evaluated as a lisp expression. In that case the variable borg-clone holds the name of the package that is being build. To make a function available in this context, you usually have to define or load it in ‘etc/borg/config.el’, relative to borg-user-emacs-directory.

Otherwise COMMAND is assumed to be a shell command and is executed with shell-command.

[submodule "mu4e"]
        path = lib/mu4e
        url = git@github.com:djcb/mu.git
        build-step = test -e ./configure || autoreconf -i
        build-step = ./configure
        build-step = make -C mu4e > /dev/null
        build-step = borg-update-autoloads
        load-path = mu4e

To skip generating "autoloads" (e.g., using use-package to create "autoloads" on the fly), just provide the required build steps to build the package, omitting borg-update-autoloads. Borg silently ignores a missing "autoloads" file during initialization (borg-initialize).

[submodule "multiple-cursors"]
        path = lib/multiple-cursors
        url = git@github.com:magnars/multiple-cursors.el.git
        build-step = borg-compile

Note that just because a package provides a Makefile, you do not necessarily have to use it.

Even if make generates the Info file, you might still have to add borg-makeinfo as an additional build-step because the former might not generate an Info index file (named dir), which Borg relies on.

Also see borg.extra-build-step below.

Variable: borg-build-shell-command ¶

This variable can be used to change how shell commands specified by submodule.DRONE.build-step are run. The default value is nil, meaning that each build step is run unchanged using shell-command.

If the value is a string, then that is combined with each build step in turn and the results are run using shell-command. This string must contain either %s, which is replaced with the unchanged build step, or %S, which is replaced with the result of quoting the build step using shell-quote-argument.

If the value is a function, then that is called once with the drone as argument and must return either a string or a function. If the returned value is a string, then that is used as described above.

If the value returned by the first function is another function, then this second function is called for each build step with the drone and the build step as arguments. It must return a string or nil. If the returned value is a string, then that is used as described above.

Finally the second function may execute the build step at its own discretion and return nil to indicate that it has done so.

Notice that if the value of this variable is a function, this function must a) be defined in a drone; and b) be registered as an autoload. This is because build happens in a separate Emacs process started with -Q --batch, which only receives the name of the function.

Variable: submodule.DRONE.load-path PATH ¶

This variable instructs borg-activate to add PATH to the load-path instead of the directory it would otherwise have added. Likewise it instructs borg-compile to compile the libraries in that directory. PATH has to be relative to the top-level of the repository of the drone named DRONE. This variable can be specified multiple times.

Normally Borg uses elisp/ as the drone’s load-path, if that exists; otherwise lisp/, if that exists; or else the top-level directory. If this variable is set, then it overrides the default location. Therefore, to add an additional directory, you also have to explicitly specify the default location.

[submodule "org"]
        path = lib/org
        url = git://orgmode.org/org-mode.git
        build-step = make
        load-path = lisp
        load-path = contrib/lisp
        info-path = doc

Variable: submodule.DRONE.no-byte-compile PATH ¶

This variable instructs borg-compile to not compile the library at PATH. PATH has to be relative to the top-level of the repository of the drone named DRONE. This variable can be specified multiple times.

Sometimes a drone comes with an optional library which adds support for some other third-party package, which you don’t want to use. For example emacsql comes with a PostgreSQL back-end, which is implemented in the library emacsql-pg.el, which requires the pg package. The standard Borg collective emacs.g assimilates emacsql, for the sake of the epkg drone, which only requires the SQLite back-end. To avoid an error about pg not being available, emacs.g instructs Borg to not compile emacsql-pg.el. (Of course if you want to use the PostgreSQL back-end and assimilate pg, then you should undo that.)

Variable: submodule.DRONE.recursive-byte-compile BOOLEAN ¶

Setting this variable to true instructs borg-compile to compile DRONE’s directories recursively. This isn’t done by default because there are more repositories in which doing so would cause issues than there are repositories that would benefit from doing so.

Unfortunately many packages put problematic test files or (usually outdated) copies of third-party libraries into subdirectories. The latter is a highly questionable thing to do, but the former would be perfectly fine, if only the non-library lisp files did not provide a feature (which effectively turns them into libraries) and/or if a file named .nosearch existed in the subdirectory. That file tells functions such as normal-top-level-add-subdirs-to-load-path and borg-compile to ignore the containing directory.

Variable: borg-compile-function ¶

The function used to compile each individual library. One of byte-compile-file, borg-byte+native-compile or borg-byte+native-compile-async.

To enable native compilation when running make, use one of the respective make targets, as described in Make targets.

Variable: borg-compile-recursively ¶

Setting this variable to a non-nil value instructs borg-compile to compile all drones recursively. Doing so is discouraged.

Variable: borg-native-compile-deny-list ¶

This variable lists the names of files to be excluded from native compilation.

Variable: borg.extra-build-step COMMAND ¶

This variable instructs Borg to execute COMMAND after the default build-steps for each DRONE (or after submodule.DRONE.build-step, if that specified). It has to be set in borg-gitmodules-file and can have multiple values.

If a COMMAND begins with a parenthesis, then it is evaluated as a lisp expression. In that case the variable borg-clone holds the name of the package that is being build. To make a function available in this context, you usually have to define or load it in ‘etc/borg/config.el’, relative to borg-user-emacs-directory.

Otherwise COMMAND is assumed to be a shell command and is executed with shell-command.

Variable: submodule.DRONE.info-path PATH ¶

This variable instructs borg-initialize to add PATH to Info-directory-list. PATH has to be relative to the top-level of the repository of the drone named DRONE.

Variable: submodule.DRONE.no-maketexi PATH ¶

This variable instructs borg-maketexi to not create a Texinfo file for the Org file at PATH. PATH has to be relative to the top-level of the repository of the drone named DRONE. This variable can be specified multiple times.

Variable: submodule.DRONE.no-makeinfo PATH ¶

This variable instructs borg-makeinfo to not create an Info file for the Texinfo file at PATH. PATH has to be relative to the top-level of the repository of the drone named DRONE. This variable can be specified multiple times.

Variable: submodule.DRONE.disabled true|false ¶

If the value of this variable is true, then it is skipped by borg-initialize.

Variable: borg-rewrite-urls-alist ¶

An alist that can optionally be used to rewrite certain URLs. Each element has the form (ORIG . BASE). Each URL that starts with ORIG is rewritten to start with BASE instead. See Using https URLs.

Variable: borg-maketexi-filename-regexp ¶

A regexp matching Org files that may be exported to Texinfo by borg-maketexi. The name of the clone is substituted for %s. Setting this to nil disables the export of any Org files.

9 Low-level functions

You normally should not have to use the following low-level functions directly. That being said, you might want to do so anyway if you build your own tools on top of Borg.

Function: borg-worktree clone ¶

This function returns the top-level of the working tree of the clone named CLONE.

Function: borg-gitdir clone ¶

This function returns the Git directory of the clone named CLONE.

It always returns BORG-USER-EMACS-DIRECTORY/.git/modules/CLONE, even when CLONE’s Git directory is actually located inside the working tree.

Macro: borg-do-drones (var [result]) body...) ¶

This macro loop over drones. BODY is evaluated with VAR bound to each drone, in turn. Inside BODY variables set in .gitmodules are cached. Then RESULT is evaluated to get the return value, defaulting to nil.

Function: borg-get clone variable &optional all ¶

This function returns the value of the Git variable submodule.CLONE.VARIABLE defined in ~/.config/emacs/.gitmodules. If optional ALL is non-nil, then it returns all values as a list.

Function: borg-get-all clone variable ¶

This function returns all values of the Git variable submodule.CLONE.VARIABLE defined in ~/.config/emacs/.gitmodules as a list.

Function: borg-load-path clone ¶

This function returns the load-path for the clone named CLONE.

Function: borg-info-path clone &optional setup ¶

This function returns the Info-directory-list for the clone named CLONE.

If optional SETUP is non-nil, then it returns a list of directories containing texi and/or info files. Otherwise it returns a list of directories containing a file named dir.

Function: borg-dronep name ¶

This function returns non-nil if a drone named NAME exists.

If that is set in .gitmodules, then it returns the value of submodule.NAME.path, nil otherwise.

Function: borg-drones &optional include-variables ¶

This function returns a list of all assimilated drones.

The returned value is a list of the names of the assimilated drones, unless optional INCLUDE-VARIABLES is non-nil, in which case elements of the returned list have the form (NAME . ALIST).

ALIST is an association list. Property names are symbols and correspond to a VARIABLE defined in the Borg repository’s .gitmodules file as submodule.NAME.VARIABLE.

Each property value is either a string or a list of strings. If INCLUDE-VARIABLES is raw then all values are lists. Otherwise a property value is only a list if the corresponding property name is a member of borg--multi-value-variables. If a property name isn’t a member of borg--multi-value-variables but it does have multiple values anyway, then it is undefined with value is included in the returned value.

Function: borg-clones ¶

This function returns a list of all cloned packages.

The returned value includes the names of all drones, as well as the names of all other repositories that are located directly inside borg-drones-directory but aren’t tracked as submodules.

Function: borg-read-package prompt &optional edit-url ¶

This function reads a package name and the url of its upstream repository from the user, and returns them as a list.

When the epkg package is available, then the user is only prompted for the name of the package, and the upstream url is retrieved from the Epkg database. If the package isn’t in the database then the url has to be provided by the user. If optional EDIT-URL is non-nil, then the url from the database, if any, is provided as initial input for the user to edit.

PROMPT is used when prompting for the package name.

Function: borg-read-clone prompt ¶

This function reads the name of a cloned package from the user.

There exist a few more functions, but those are considered to be internal and might therefore change in incompatible ways without that being noted in the change log.

Function: borg--maybe-absorb-gitdir pkg ¶

Function: borg--maybe-reuse-gitdir pkg ¶

Function: borg--restore-worktree pkg ¶

Function: borg--call-git pkg &rest args ¶

Function: borg--expand-load-path drone path ¶

Function: borg--sort-submodule-sections ¶