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session-start hook: gate local-source load on Package == 'saber' #31

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Merged
TroyHernandez merged 1 commit into from
Jun 7, 2026
Merged

session-start hook: gate local-source load on Package == 'saber' #31

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15 changes: 13 additions & 2 deletions inst/scripts/session-start.R
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Original file line number Diff line number Diff line change
Expand Up @@ -59,11 +59,22 @@ load_saber_fun <- function(name, repo_root = NULL) {
if (!is.null(repo_root)) {
local_fun <- tryCatch(
{
desc <- file.path(repo_root, "DESCRIPTION")
r_dir <- file.path(repo_root, "R")
if (!file.exists(file.path(repo_root, "DESCRIPTION")) ||
!dir.exists(r_dir)) {
if (!file.exists(desc) || !dir.exists(r_dir)) {
stop("No local package source found")
}
# Only source from the local repo when it IS
# saber. Other packages may export a symbol
# with the same name (e.g. cerebro::briefing)
# but a different signature.
pkg <- tryCatch(
read.dcf(desc, fields = "Package")[1L, "Package"],
error = function(e) NA_character_
)
if (is.na(pkg) || pkg != "saber") {
stop("Local package is not saber")
}

env <- new.env(parent = baseenv())
r_files <- list.files(r_dir, pattern = "\\.[Rr]$",
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