[Gretl-devel] Re: Accessing a package's version

On Thu, 1 Aug 2019, Artur Tarassow wrote: Here's what's in current git (snapshots and documentation to follow): there's a new "query" action for the pkg command. By default it prints information and stores nothing, but with the --quiet option it prints nothing and stores a $result bundle. An illustration (I've redacted the "email" output): <hansl> pkg query ghosts pkg query ghosts --quiet eval $result if inbundle($result, "depends") eval $result.depends endif pkg query invisible pkg query invisible --quiet eval $result </hansl> <output> ? pkg query ghosts File: /opt/esl/share/gretl/functions/ghosts/ghosts.gfn Package: ghosts 0.3 (2019-04-24) Author: Riccardo "Jack" Lucchetti Required gretl version: 2018b (20181) Data requirement: none Description: Multivariate spectra Dependencies: cmatrix ? pkg query ghosts --quiet ? eval $result bundle anonymous: author = Riccardo "Jack" Lucchetti date = 2019-04-24 file = /opt/esl/share/gretl/functions/ghosts/ghosts.gfn name = ghosts data_requirement = none depends = array of strings, length 1 version = 0.3 description = Multivariate spectra gretl_version = 20181 ? eval $result.depends Array of strings, length 1 [1] "cmatrix" ? pkg query invisible invisible: not found ? pkg query invisible --quiet ? eval $result bundle anonymous: not_found = 1 </output> Allin