Given a list of PACKAGE-NAMES or (PACKAGE-NAME VERSION) pairs, and an optional OUTPUT, tries to generate a quoted list of inputs, as suitable to use in an 'inputs' field of a package definition.

Guess if the URL looks like a Git repository.

If APPEND-VERSION?/STRING is #t, append the package's major+minor version. If it is the symbol 'full, append the package's complete version. If APPEND-VERSION?/string is a string, append this string.

Return a downcased version of the string STR where underscores and periods are replaced with dashes.

Fetch the given REF from the Git repository at URL. Return three values : the commit hash, the downloaded directory and its content hash.

Return a generated `origin' block of a package depending on the Git version control system, and the directory in the store where the package has been downloaded, in case further processing is necessary.

Unless overwritten with REF, the ref (as defined by the (guix git) module) is calculated from the evaluation of PROC with trailing arguments. PROC must be a procedure with a 'body property, used to generate the origin sexp.

Given a list of PACKAGE-NAMES, tries to generate the 'inputs' field of a package definition. TYPE can be used to specify the type of the inputs; either the 'native or 'propagated symbols are accepted. Left unspecified, the snippet generated is for regular inputs.

Improve the package SYNOPSIS.

Return the hash of FILENAME in nix-base32 format.

Simple helper to generate a Git origin s-expression.

Return a procedure to be passed to a `git-error' `catch' for HOME-PAGE at LOCATION.

Convert STR, an SPDX license identifier (possibly with a postfix + operator), to a symbol like 'license:gpl3+ giving the prefixed name of a license object exported from (guix licenses). Return #f if STR does not match any known SPDX license identifiers. Per the SPDX specification, license identifiers are compared case-insensitively.

Same as MAYBE-INPUTS, but for propagated inputs.

Return a list of chunks, each of which is a list of lines. The chunks are separated by PRED.

Factorize URI, a package tarball URI as a string, such that any occurrences of the string VERSION is replaced by the symbol 'version.

Find VERSION amongst VERSIONS. When VERSION is not provided, return the latest version. When PARTIAL? is #t, VERSION is treated as a version prefix; e.g. finding version "0.1" may return "0.1.8" if it is the newest "0.1" prefixed version found in VERSIONS. Return #f when VERSION could not be found.

Convert LICENSE object to a prefixed symbol representing the variable the object is bound to in the (guix licenses) module, such as 'license:gpl3+, or #f if there is no such known license.

Same as MAYBE-INPUTS, but for native inputs.

Close INFERIOR.