yaml selector help

[mark05e]

I have a yaml file which looks like this. How do I select any elements in this example? I feel that since there is no root it might not be possible?

---
- id: run1
  execute-command: "C:\\_dev\\webhook-demo\\run1.cmd"
  command-working-directory: "C:\\_dev\\webhook-demo\\"
- id: start
  execute-command: "C:\\_dev\\webhook-demo\\start.cmd"
  include-command-output-in-response: true
- id: queryuser
  execute-command: "C:\\_dev\\webhook-demo\\query_user.cmd"
  include-command-output-in-response: true
- id: queryprocess
  execute-command: "C:\\_dev\\webhook-demo\\query_process.cmd"
  include-command-output-in-response: true

stuff I tried that did not work

dasel_windows_amd64.exe -f hooks.yml -s '---.id'
dasel_windows_amd64.exe -f hooks.yml -s '.id' -m
dasel_windows_amd64.exe -f hooks.yml -s '[*].id' -m

Solution

Try using double quotes or no quotes.

ref: #142 (reply in thread)

[TomWright]

Hey @mark05e,

The selector I'd expect this to work with is .[*].id.

You can see this working here: https://dasel.tomwright.me/s/4ec7a657-8f83-4843-bab9-eb5e517b1198

Or here:

$ echo '---
- id: run1
  execute-command: "C:\\_dev\\webhook-demo\\run1.cmd"
  command-working-directory: "C:\\_dev\\webhook-demo\\"
- id: start
  execute-command: "C:\\_dev\\webhook-demo\\start.cmd"
  include-command-output-in-response: true
- id: queryuser
  execute-command: "C:\\_dev\\webhook-demo\\query_user.cmd"
  include-command-output-in-response: true
- id: queryprocess
  execute-command: "C:\\_dev\\webhook-demo\\query_process.cmd"
  include-command-output-in-response: true' | dasel -p yaml -s '[*].id' -m
run1
start
queryuser
queryprocess

It does actually look like your last attempt should have worked - what output did you get?

[mark05e]

This is what I got

C:\_dev\webhook-demo>dasel_windows_amd64.exe -f hooks.yml -s '[*].id' -m

Error: could not query multiple node: could not find multiple value: selector [type:PROPERTY selector:'[*].id'] does not support value: [kind:slice type:[]interface {}] [map[command-working-directory:C:\_dev\webhook-demo\ execute-command:C:\_dev\webhook-demo\run1.cmd id:run1] map[execute-command:C:\_dev\webhook-demo\start.cmd id:start include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_user.cmd id:queryuser include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_process.cmd id:queryprocess include-command-output-in-response:true]] 

C:\_dev\webhook-demo>dasel_windows_amd64.exe -f hooks.yml -s '.[*].id' -m

Error: could not query multiple node: could not find multiple value: selector [type:PROPERTY selector:'.[*].id'] does not support value: [kind:slice type:[]interface {}] [map[command-working-directory:C:\_dev\webhook-demo\ execute-command:C:\_dev\webhook-demo\run1.cmd id:run1] map[execute-command:C:\_dev\webhook-demo\start.cmd id:start include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_user.cmd id:queryuser include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_process.cmd id:queryprocess include-command-output-in-response:true]]  

C:\_dev\webhook-demo>dasel_windows_amd64.exe -f hooks.yml -s '[*].id' -m -p yaml

Error: could not query multiple node: could not find multiple value: selector [type:PROPERTY selector:'[*].id'] does not support value: [kind:slice type:[]interface {}] [map[command-working-directory:C:\_dev\webhook-demo\ execute-command:C:\_dev\webhook-demo\run1.cmd id:run1] map[execute-command:C:\_dev\webhook-demo\start.cmd id:start include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_user.cmd id:queryuser include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_process.cmd id:queryprocess include-command-output-in-response:true]]

C:\_dev\webhook-demo>dasel_windows_amd64.exe -f hooks.yml -s '.[*].id' -m -p yaml

Error: could not query multiple node: could not find multiple value: selector [type:PROPERTY selector:'.[*].id'] does not support value: [kind:slice type:[]interface {}] [map[command-working-directory:C:\_dev\webhook-demo\ execute-command:C:\_dev\webhook-demo\run1.cmd id:run1] map[execute-command:C:\_dev\webhook-demo\start.cmd id:start include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_user.cmd id:queryuser include-command-output-in-response:true] map[execute-command:C:\_dev\webhook-demo\query_process.cmd id:queryprocess include-command-output-in-response:true]]

[mark05e]

yep there seems to be a difference based on the command processor used.

[TomWright]

Interestingly the standard commandline does work with double quotes vs single quotes.

It comes down to this I believe: https://stackoverflow.com/questions/51080215/differences-between-single-and-double-quotes-in-cmd#:~:text=The%20short%20answer%20is%20that,and%20iterate%20over%20the%20output.

The short answer is that CMD doesn't treat single quotes as anything but a regular character. It's not a pair/group like double quotes.

[mark05e]

Can confirm double quotes work on the command prompt.

[mark05e]

Thank you for your help Tom!

[TomWright]

My pleasure. I'm glad I could help!