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c6090c290e
New functionality in hack/man-page-checker: start cross- referencing the man page 'Synopsis' line against the output of 'podman foo --help'. This is part 1, flag/option consistency. Part 2 (arg consistency) is too big and will have to wait for later. flag/option consistency means: if 'podman foo --help' includes the string '[flags]' in the Usage message, make sure the man page includes '[*options*]' in its Synopsis line, and vice-versa. This found several inconsistencies, which I've fixed. While doing this I realized that Cobra automatically includes a 'Flags:' subsection in its --help output for all subcommands that have defined flags. This is great - it lets us cross-check against the usage synopsis, and make sure that '[flags]' is present or absent as needed, without fear of human screwups. If a flag-less subcommand ever gets extended with flags, but the developer forgets to add '[flags]' and remove DisableFlagsInUseLine, we now have a test that will catch that. (This, too, caught two instances which I fixed). I don't actually know if the new man-page-checker functionality will work in CI: I vaguely recall that it might run before 'make podman' does; and also vaguely recall that some steps were taken to remedy that. Signed-off-by: Ed Santiago <santiago@redhat.com>
43 lines
1006 B
Markdown
43 lines
1006 B
Markdown
% podman-container-exists(1)
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## NAME
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podman-container-exists - Check if a container exists in local storage
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## SYNOPSIS
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**podman container exists** *container*
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## DESCRIPTION
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**podman container exists** checks if a container exists in local storage. The **ID** or **Name**
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of the container may be used as input. Podman will return an exit code
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of `0` when the container is found. A `1` will be returned otherwise. An exit code of `125` indicates there
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was an issue accessing the local storage.
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## OPTIONS
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**-h**, **--help**
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Print usage statement
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## Examples
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Check if an container called `webclient` exists in local storage (the container does actually exist).
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```
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$ podman container exists webclient
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$ echo $?
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0
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$
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```
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Check if an container called `webbackend` exists in local storage (the container does not actually exist).
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```
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$ podman container exists webbackend
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$ echo $?
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1
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$
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```
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## SEE ALSO
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podman(1)
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## HISTORY
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November 2018, Originally compiled by Brent Baude (bbaude at redhat dot com)
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