disable lockfile generation in callr, testthat::tests and R CMD CHECK (#1346)

Part of #1263 and closes
#1276

Local results of `shinytest2` tests

```r
══ Results ══════════════════════════════════════════════════════════════════════════
Duration: 540.8 s

── Skipped tests (6) ────────────────────────────────────────────────────────────────
• need a fix in a .slicesGlobal (1): test-module_teal.R:1139:11
• todo (5): test-module_teal.R:1404:7, test-module_teal.R:1411:5,
  test-module_teal.R:1414:5, test-module_teal.R:1673:5, test-module_teal.R:1731:5

[ FAIL 0 | WARN 0 | SKIP 6 | PASS 515 ]
```

Author: m7pr

R/module_teal_lockfile.R

@@ -74,7 +74,7 @@ srv_teal_lockfile <- function(id) {
     })
 
     lockfile_path <- "teal_app.lock"
-    is_lockfile_enabled <- isTRUE(getOption("teal.lockfile.enable"))
+    is_lockfile_enabled <- .is_lockfile_enabled()
     user_lockfile_path <- getOption("teal.lockfile.path", default = "")
     is_user_lockfile_set <- !identical(user_lockfile_path, "")
 
@@ -194,3 +194,19 @@ utils::globalVariables(c("opts", "sysenv", "libpaths", "wd", "lockfilepath", "ru
 .is_lockfile_deps_installed <- function() {
   requireNamespace("mirai", quietly = TRUE) && requireNamespace("renv", quietly = TRUE)
 }
+
+#' @rdname module_teal_lockfile
+.is_lockfile_enabled <- function() {
+  if (isTRUE(getOption("teal.lockfile.enable"))) {
+    return(TRUE)
+  } else {
+    !(
+      identical(Sys.getenv("CALLR_IS_RUNNING"), "true") || # inside callr process
+      identical(Sys.getenv("TESTTHAT"), "true") || # inside devtools::test
+      !identical(Sys.getenv("QUARTO_PROJECT_ROOT"), "") || # inside Quarto process
+      (
+        ("CheckExEnv" %in% search()) || any(c("_R_CHECK_TIMINGS_", "_R_CHECK_LICENSE_") %in% names(Sys.getenv()))
+      ) # inside R CMD CHECK
+    )
+  }
+}

R/zzz.R

@@ -1,8 +1,8 @@
 .onLoad <- function(libname, pkgname) {
   # adapted from https://github.com/r-lib/devtools/blob/master/R/zzz.R
+
   teal_default_options <- list(
     teal.show_js_log = FALSE,
-    teal.lockfile.enable = TRUE,
     shiny.sanitize.errors = FALSE
   )
 

tests/testthat/setup-options.R

@@ -1,9 +1,3 @@
-withr::local_options(
-  # we should't run lockfile process multiple times in tests as it starts background process which is not
-  # possible to kill once run. It means that background R sessions are being cumulated
-  list(teal.lockfile.enable = FALSE),
-  .local_envir = testthat::teardown_env()
-)
 
 # `opts_partial_match_old` is left for exclusions due to partial matching in dependent packages (i.e. not fixable here)
 # it might happen that it is not used right now, but it is left for possible future use