How to get JSON from cURL as array in a batch file - json

Question

Hi I'm very new in batch files. I try to do something simular to my bash script. So here is my problem:
I want to get all versions/tags from a github repository to generate a configuration file for the php documentor sami. But how can I write the JSON into a variable in batch to get the versions? In my bash script I did this and it's working fine:
function jsonDecode() {
json=$1
key=$2
echo ${json} | jq -r ${key}
}
ghUser="MisterMarlu"
ghRepo="sentence"
json=$(curl "https://api.github.com/repos/${ghUser}/${ghRepo}/tags")
versions=$(echo "${json}" | jq -c ".[]")
for version in ${versions[#]}; do
versionNumber=$(jsonDecode ${version} ".name")
echo " ->add( '${versionNumber}', '${versionNumber}' )" >> ${config}
done
# Here comes alot of code below this for loop..
This will output "v0.0.1" and "v0.0.2". Bus how can I do this in a batch file?
EDIT
Here is the JSON response where I need just the "name" as array:
[
{
"name": "v0.0.2",
"zipball_url": "https://api.github.com/repos/MisterMarlu/sentence/zipball/v0.0.2",
"tarball_url": "https://api.github.com/repos/MisterMarlu/sentence/tarball/v0.0.2",
"commit": {
"sha": "82c4b6d74cc16816104934114766f0328e77ee66",
"url": "https://api.github.com/repos/MisterMarlu/sentence/commits/82c4b6d74cc16816104934114766f0328e77ee66"
},
"node_id": "MDM6UmVmMTMzMDM1MDMxOnYwLjAuMg=="
},
{
"name": "v0.0.1",
"zipball_url": "https://api.github.com/repos/MisterMarlu/sentence/zipball/v0.0.1",
"tarball_url": "https://api.github.com/repos/MisterMarlu/sentence/tarball/v0.0.1",
"commit": {
"sha": "0cf1a83a51716da3f42915c9eab571166845bb0b",
"url": "https://api.github.com/repos/MisterMarlu/sentence/commits/0cf1a83a51716da3f42915c9eab571166845bb0b"
},
"node_id": "MDM6UmVmMTMzMDM1MDMxOnYwLjAuMQ=="
}
]

Answer 1

To process the output of another program you need a for /f
parsing the lines filtered by findstr
:: Q:\Test\2018\06\12\SU_50811698.cmd
#Echo off & SetLocal EnableDelayedExpansion
Set "ghUser=MisterMarlu"
Set "ghRepo=sentence"
Set "Version="
For /f "tokens=1,2 delims=:, " %%U in ('
curl "https://api.github.com/repos/%ghUser%/%ghRepo%/tags" 2^>Nul ^| findstr /i "\"name\""
') do Set "Version=!Version!,%%~V"
If defined Version (set "Version=%Version:~1%") Else (Set "Version=n/a")
Set Version
Sample output:
> Q:\Test\2018\06\12\SU_50811698.cmd
Version=v0.0.2,v0.0.1
You are aware that batch has no real arrays?
Just an alternative in PowerShell:
$ghUser="MisterMarlu"
$ghRepo="sentence"
$URL = "https://api.github.com/repos/$ghUser/$ghRepo/tags"
$Json=(curl.exe $URL)|ConvertFrom-json
$Json | Select name
name
----
v0.0.2
v0.0.1

Answer 2

With Xidel it's simple as:
xidel -s "https://api.github.com/repos/MisterMarlu/sentence/tags" -e "join($json()/name,',')"
This puts out: v0.0.2,v0.0.1.
To export this as $config/%config%...
Bash:
eval "$(xidel -s "https://api.github.com/repos/MisterMarlu/sentence/tags" -e '
config:=join(
$json()/name,
","
)' --output-format=bash
)"
Batch:
FOR /F "delims=" %%A IN ('xidel.exe -s "https://api.github.com/repos/MisterMarlu/sentence/tags" -e ^"
config:^=join^(
$json^(^)/name^,
'^,'
^)^" --output-format^=cmd
') DO %%A
or...
FOR /F "delims=" %%A IN ('xidel.exe -s "https://api.github.com/repos/MisterMarlu/sentence/tags" -e "config:=join($json()/name,',')" --output-format=cmd') DO %%A