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Check if a specific Rocker image tag exists

Source: R/r_ver_exists.R
r_ver_exists.Rd

Validates the format of a version string and checks whether it exists among the available tags for a specified Rocker image on Docker Hub. Supports semantic versioning, CUDA variants, and Ubuntu suffixes.

Usage

r_ver_exists(version, r_mode = "base", verbose = FALSE)

Arguments

version

Character string. The tag to check for existence, e.g. "4.4.0", "devel", or "4.4.0-cuda12.2-ubuntu22.04". Must match semantic versioning or be one of "latest", "devel".

r_mode

Character string. One of "base", "rstudio", or "tidyverse". Determines which Rocker image to query.

verbose

Logical. If TRUE, prints messages indicating whether the version was found.

Value

Logical. TRUE if the specified version tag exists for the given Rocker image; otherwise FALSE.

Examples

r_ver_exists("4.4.0")
#> Error in loadNamespace(x): there is no package called ‘httr’
r_ver_exists("devel", r_mode = "rstudio", verbose = TRUE)
#> Fetching tags from: https://hub.docker.com/v2/repositories/rocker/rstudio/tags?page_size=100
#> Error in loadNamespace(x): there is no package called ‘httr’
r_ver_exists("4.4.0-cuda12.2-ubuntu22.04", r_mode = "tidyverse")
#> Error in loadNamespace(x): there is no package called ‘httr’