git-annex/doc/git-annex-whereis.mdwn
Joey Hess a325524454
--json-exceptions
Added a --json-exceptions option, which makes some exceptions be output in json.

The distinction is that --json-error-messages is for messages relating
to a particular ActionItem, while --json-exceptions is for messages that
are not, eg ones for a file that does not exist.

It's unfortunate that we need two switches with such a fine distinction
between them, but I'm worried about maintaining backwards compatability
in the json output, to avoid breaking anything that parses it, and this was
the way to make sure I didn't.

toplevelWarning is generally used for the latter kind of message. And
the other calls to toplevelWarning could be converted to showException. The
only possible gotcha is that if toplevelWarning is ever called after
starting acting on a file, it will add to the --json-error-messages of the
json displayed for that file and converting to showException would be a
behavior change. That seems unlikely, but I didn't convery everything to
avoid needing to satisfy myself it was not a concern.

Sponsored-by: Dartmouth College's Datalad project
2023-04-25 17:05:33 -04:00

128 lines
3.3 KiB
Markdown

# NAME
git-annex whereis - lists repositories that have file content
# SYNOPSIS
git annex whereis `[path ...]`
# DESCRIPTION
Displays information about where the contents of files are located.
For example:
# git annex whereis
whereis my_cool_big_file (1 copy)
0c443de8-e644-11df-acbf-f7cd7ca6210d -- laptop
whereis other_file (3 copies)
0c443de8-e644-11df-acbf-f7cd7ca6210d -- laptop
62b39bbe-4149-11e0-af01-bb89245a1e61 -- usb drive [here]
7570b02e-15e9-11e0-adf0-9f3f94cb2eaa -- backup drive
Note that this command does not contact remotes to verify if they still
have the content of files. It only reports on the last information that was
received from remotes.
# OPTIONS
* matching options
The [[git-annex-matching-options]](1)
can be used to control what to act on.
* `--key=keyname`
Show where a particular git-annex key is located.
* `--all` `-A`
Show whereis information for all known keys.
(Except for keys that have been marked as dead,
see [[git-annex-dead]](1).)
* `--branch=ref`
Show whereis information for files in the specified branch or treeish.
* `--unused`
Show whereis information for files found by last run of git-annex unused.
* `--batch`
Enables batch mode, in which a file is read in a line from stdin,
its information displayed, and repeat.
Note that if the file is not an annexed file, or does not match
specified matching options, an empty line will be
output instead.
* `--batch-keys`
This is like `--batch` but the lines read from stdin are parsed as keys.
* `-z`
Makes batch input be delimited by nulls instead of the usual
newlines.
* `--json`
Enable JSON output. This is intended to be parsed by programs that use
git-annex. Each line of output is a JSON object corresponding to a file
being processed.
* `--json-error-messages`
Adds an "error-messages" field to the JSON that contains messages that
would normally be output to the standard error when processing a file.
* `--json-exceptions`
Output additional JSON objects for some exceptions that are not
associated with a particular file.
* `--format=value`
Use custom output formatting.
The value is a format string, in which '${var}' is expanded to the
value of a variable. To right-justify a variable with whitespace,
use '${var;width}' ; to left-justify a variable, use '${var;-width}';
to escape unusual characters (including control characters)
in a variable, use '${escaped_var}'
These variables are available for use in formats: file, key, uuid,
url, backend, bytesize, humansize, keyname, hashdirlower, hashdirmixed,
mtime (for the mtime field of a WORM key).
Also, '\\n' is a newline, '\\000' is a NULL, etc.
When the format contains the uuid variable, it will be expanded in turn
for each repository that contains the file content. For example,
with --format="${file} ${uuid}\\n", output will look like:
foo 00000000-0000-0000-0000-000000000001
foo a7f7ddd0-9a08-11ea-ab66-8358e4209d30
bar a7f7ddd0-9a08-11ea-ab66-8358e4209d30
The same applies when the url variable is used and a file has multiple
recorded urls.
* Also the [[git-annex-common-options]](1) can be used.
# SEE ALSO
[[git-annex]](1)
[[git-annex-find]](1)
[[git-annex-list]](1)
# AUTHOR
Joey Hess <id@joeyh.name>
Warning: Automatically converted into a man page by mdwn2man. Edit with care.