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https://issues.apache.org/jira/browse/SOLR-9610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15553056#comment-15553056
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Jan Høydahl edited comment on SOLR-9610 at 10/6/16 8:19 PM:
------------------------------------------------------------

Patch. I plan to commit this. It just adds the tool. Does not use the 
assertions anywhere yet. Next step could be to replace some not-root-user or 
directory-exists checks.

Currently each assertion throws an exception which by the tool-runner is 
printed as ERRROR: <msg>. Could be that we want those error messages 
configurable when using the asserts from Java code. Perhaps also allow a 
cmdline switch {{-m <failure message>}}


was (Author: janhoy):
Patch

> New AssertTool in SolrCLI
> -------------------------
>
>                 Key: SOLR-9610
>                 URL: https://issues.apache.org/jira/browse/SOLR-9610
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: scripts and tools
>            Reporter: Jan Høydahl
>            Assignee: Jan Høydahl
>             Fix For: 6.3, master (7.0)
>
>         Attachments: SOLR-9610.patch
>
>
> Moving some code from SOLR-7826 over here. This is a new AssertTool which can 
> be used to assert that we are (not) root user and more. Usage:
> {noformat}
> usage: bin/solr assert [-rR] [-s <url>] [-S <url>] [-u <dir>] [-x <dir>]
>                 [-X <dir>]
>  -help                         Print this message
>  -R,--not-root                 Asserts that we are NOT the root user
>  -r,--root                     Asserts that we are the root user
>  -S,--not-started <url>        Asserts that Solr is NOT started on a
>                                certain URL
>  -s,--started <url>            Asserts that Solr is started on a certain
>                                URL
>  -u,--same-user <directory>    Asserts that we run as same user that owns
>                                <directory>
>  -verbose                      Generate verbose log messages
>  -x,--exists <directory>       Asserts that directory <directory> exists
>  -X,--not-exists <directory>   Asserts that directory <directory> does NOT
>                                exist
> {noformat}
> This can then also be used from bin/solr through e.g. {{run_tool assert -r}}, 
> or from Java Code static methods such as 
> {{AssertTool.assertSolrRunning(String url)}}



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