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| author | Peter Rajnoha <prajnoha@redhat.com> | 2022-08-04 16:52:22 +0200 |
|---|---|---|
| committer | Peter Rajnoha <prajnoha@redhat.com> | 2022-08-11 11:10:11 +0200 |
| commit | efd083f66883e674a6f24370d8c7cc06aa4fafe7 (patch) | |
| tree | 9106d3ff21158c3dbe174bd3980c8ad281916a54 /man | |
| parent | aa7cec61edae849c5fab7e1319684b43fdc439de (diff) | |
| download | lvm2-efd083f66883e674a6f24370d8c7cc06aa4fafe7.tar.gz | |
man: update lvmreport man page about json_std format
Diffstat (limited to 'man')
| -rw-r--r-- | man/lvmreport.7_main | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/man/lvmreport.7_main b/man/lvmreport.7_main index f0f04ad1c..1ef5d25db 100644 --- a/man/lvmreport.7_main +++ b/man/lvmreport.7_main @@ -1303,9 +1303,19 @@ binary_values_as_numeric=1 . LVM can output reports in different formats - use \fBreport/output_format\fP configuration setting (or \fB--reportformat\fP command line option) to swith -the report output format. Currently, LVM supports \fB"basic"\fP (all the examples -we used above used this format) and \fB"JSON"\fP output format. +the report output format. + .P +Currently, LVM supports these outpout formats: +.RS +- \fB"basic"\fP (all the examples we used above used this format), +.br +- \fB"json"\fP, +.br +- \fB"json_std"\fP. +.RE +.P +For example: .nf # lvs -o lv_name,lv_size --reportformat json { @@ -1320,13 +1330,23 @@ we used above used this format) and \fB"JSON"\fP output format. } .fi .P +The \fBjson_std\fP output format is more compliant with JSON standard and +compared to the original \fBjson\fP format: +.RS +- it does not use double quotes around numeric values, +.br +- it uses 'null' for undefined numeric values, +.br +- it prints string list as proper JSON array of strings instead of a single string. +.RE +.P Note that some configuration settings and command line options have no -effect with certain report formats. For example, with \fBJSON\fP output, -it doesn't have any meaning to use \fBreport/aligned\fP (\fB--aligned\fP), -\fBreport/noheadings\fP (\fB--noheadings\fP), \fBreport/columns_as_rows\fP -(\fB--rows\fP) or \fBreport/buffered\fP (\fB--unbuffered\fP). All these -configuration settings and command line options are ignored if using the -\fBJSON\fP report output format. +effect with certain report formats. For example, with \fBjson\fP or +\fBjson_std\fP output, it doesn't have any meaning to use \fBreport/aligned\fP +(\fB--aligned\fP), \fBreport/noheadings\fP (\fB--noheadings\fP), +\fBreport/columns_as_rows\fP (\fB--rows\fP) or \fBreport/buffered\fP +(\fB--unbuffered\fP). All these configuration settings and command line options +are ignored if using the \fBjson\fP or \fBjson_std\fP report output format. . .SS Selection . |