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[os] Darwin,FreeBSD,OpenBSD: Rename os.getenv to os.get_env

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Make os.get_env consistent across Unixes

This matches the function name and API from env_windows.odin and os_linux.odin, which should be the same everywhere. Meaning:

* named get_env and not getenv
* return a string (empty if the environment variable is not found)
* accept a default value parameter for the allocator (defaulting to context.allocator)
* calls lookup_env which returns an extra found boolean value

This is so that you don't have to write platform/OS conditionals when getting environment variable values from the stdlib os.get_env/getenv function.
This commit is contained in:
William Roe
2022-05-23 13:09:37 +01:00
parent a31d23a32a
commit 54a326f046
3 changed files with 24 additions and 9 deletions
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11
core/os/os_darwin.odin
View File

@@ -633,13 +633,18 @@ heap_free :: proc(ptr: rawptr) {
_unix_free(ptr)
}
getenv :: proc(name: string) -> (string, bool) {
path_str := strings.clone_to_cstring(name, context.temp_allocator)
lookup_env :: proc(key: string, allocator := context.allocator) -> (value: string, found: bool) {
path_str := strings.clone_to_cstring(key, context.temp_allocator)
cstr := _unix_getenv(path_str)
if cstr == nil {
return "", false
}
return string(cstr), true
return strings.clone(string(cstr), allocator), true
}
get_env :: proc(key: string, allocator := context.allocator) -> (value: string) {
value, _ = lookup_env(key, allocator)
return
}
get_current_directory :: proc() -> string {

11
core/os/os_freebsd.odin
View File

@@ -618,13 +618,18 @@ heap_free :: proc(ptr: rawptr) {
_unix_free(ptr)
}
getenv :: proc(name: string) -> (string, bool) {
path_str := strings.clone_to_cstring(name, context.temp_allocator)
lookup_env :: proc(key: string, allocator := context.allocator) -> (value: string, found: bool) {
path_str := strings.clone_to_cstring(key, context.temp_allocator)
cstr := _unix_getenv(path_str)
if cstr == nil {
return "", false
}
return string(cstr), true
return strings.clone(string(cstr), allocator), true
}
get_env :: proc(key: string, allocator := context.allocator) -> (value: string) {
value, _ = lookup_env(key, allocator)
return
}
get_current_directory :: proc() -> string {

11
core/os/os_openbsd.odin
View File

@@ -620,13 +620,18 @@ heap_free :: proc(ptr: rawptr) {
_unix_free(ptr)
}
getenv :: proc(name: string) -> (string, bool) {
path_str := strings.clone_to_cstring(name, context.temp_allocator)
lookup_env :: proc(key: string, allocator := context.allocator) -> (value: string, found: bool) {
path_str := strings.clone_to_cstring(key, context.temp_allocator)
cstr := _unix_getenv(path_str)
if cstr == nil {
return "", false
}
return string(cstr), true
return strings.clone(string(cstr), allocator), true
}
get_env :: proc(key: string, allocator := context.allocator) -> (value: string) {
value, _ = lookup_env(key, allocator)
return
}
get_current_directory :: proc() -> string {