# NAME

`bdep-update` – update project in build configurations

# SYNOPSIS

`bdep update [options] [pkg-spec] [cfg-spec] [cfg-var...]`

`cfg-spec = (@cfg-name | --config|-c cfg-dir)... | --all|-a
pkg-spec = (pkg | (--directory|-d pkg-dir))... | prj-spec
prj-spec = --directory|-d prj-dir`

# DESCRIPTION

The `update` command updates the project packages in one or more build configurations. Additionally, immediate or all dependencies of the project packages can be updated by specifying the `--immediate|-i` or `--recursive|-r` options, respectively.

Underneath `update` executes the `bpkg-pkg-update(1)` command which itself is not much more than the build system `update` operation (see `b(1)` for details). As a result, the main utility of this command is the ability to refer to build configurations by names and to project packages implicitly via the current working directory as well as to update dependencies.

If no project or package directory is specified, then the current working directory is assumed. If no configuration is specified, then the default configurations are assumed. See `bdep-projects-configs(1)` for details on specifying projects and configurations. Optional `cfg-var...` are the additional configuration variables to pass to the build system.

# UPDATE OPTIONS

`--immediate`|`-i`
  Also update immediate dependencies.
`--recursive`|`-r`
  Also update all dependencies, recursively.
`--all`|`-a`
  Use all build configurations.
`--config`|`-c` `dir`
  Specify the build configuration as a directory.
`--directory`|`-d` `dir`
  Assume project/package is in the specified directory rather than in the current working directory.
`--config-name`|`-n` `name`
  Specify the build configuration as a name.
`--config-id` `num`
  Specify the build configuration as an id.

# COMMON OPTIONS

The common options are summarized below with a more detailed description available in `bdep-common-options(1)`.

`-v`
  Print essential underlying commands being executed.
`-V`
  Print all underlying commands being executed.
`--quiet`|`-q`
  Run quietly, only printing error messages.
`--verbose` `level`
  Set the diagnostics verbosity to `level` between 0 and 6.
`--stdout-format` `format`
  Representation format to use for printing to `stdout`.
`--jobs`|`-j` `num`
  Number of jobs to perform in parallel.
`--progress`
  Display progress indicators for long-lasting operations, such as network transfers, building, etc.
`--no-progress`
  Suppress progress indicators for long-lasting operations, such as network transfers, building, etc.
`--diag-color`
  Use color in diagnostics.
`--no-diag-color`
  Don't use color in diagnostics.
`--bpkg` `path`
  The package manager program to be used for build configuration management.
`--bpkg-option` `opt`
  Additional option to be passed to the package manager program.
`--build` `path`
  The build program to be used to build packages.
`--build-option` `opt`
  Additional option to be passed to the build program.
`--curl` `path`
  The curl program to be used for network operations.
`--curl-option` `opt`
  Additional option to be passed to the curl program.
`--offline`
  Do not attempt to download resources (packages, repository metadata, etc), instead taking them from the local fetch cache if available and failing otherwise.
`--no-fetch-cache`
  Disable local caching of download resources (packages, repository metadata, etc).
`--fetch-cache` `mode`
  Comma-separated list of local fetch cache modes.
`--fetch-cache-session` `id`
  The local fetch cache session.
`--pager` `path`
  The pager program to be used to show long text.
`--pager-option` `opt`
  Additional option to be passed to the pager program.
`--options-file` `file`
  Read additional options from `file`.
`--default-options` `dir`
  The directory to load additional default options files from.
`--no-default-options`
  Don't load default options files.

# DEFAULT OPTIONS FILES

See `bdep-default-options-files(1)` for an overview of the default options files. For the `update` command the search start directory is the project directory. The following options files are searched for in each directory and, if found, loaded in the order listed:

    bdep.options
    bdep-update.options

The following `update` command options cannot be specified in the default options files:

    --directory|-d

# BUGS

Send bug reports to the users@build2.org mailing list.