packer-cn/command/validate/help.go

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package validate
const helpString = `
Usage: packer validate [options] TEMPLATE
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Checks the template is valid by parsing the template and also
checking the configuration with the various builders, provisioners, etc.
If it is not valid, the errors will be shown and the command will exit
with a non-zero exit status. If it is valid, it will exit with a zero
exit status.
Options:
-syntax-only Only check syntax. Do not verify config of the template.
-except=foo,bar,baz Validate all builds other than these
-only=foo,bar,baz Validate only these builds
-var 'key=value' Variable for templates, can be used multiple times.
-var-file=path JSON file containing user variables.
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`