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[feature] Added os.delEnv; add delEnv support to nimscript too (#11466)

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[feature] Fixes https://github.com/nim-lang/Nim/issues/11452.
This commit is contained in:
Kaushal Modi 2019-06-15 05:32:26 -04:00 • committed by Andreas Rumpf
commit 7182922622
6 changed files with 59 additions and 4 deletions
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10
lib/system/nimscript.nim
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@ -114,15 +114,19 @@ proc cmpic*(a, b: string): int =
cmpIgnoreCase(a, b)
proc getEnv*(key: string; default = ""): string {.tags: [ReadIOEffect].} =
## Retrieves the environment variable of name `key`.
## Retrieves the environment variable of name ``key``.
builtin
proc existsEnv*(key: string): bool {.tags: [ReadIOEffect].} =
## Checks for the existence of an environment variable named `key`.
## Checks for the existence of an environment variable named ``key``.
builtin
proc putEnv*(key, val: string) {.tags: [WriteIOEffect].} =
## Sets the value of the environment variable named key to val.
## Sets the value of the environment variable named ``key`` to ``val``.
builtin
proc delEnv*(key: string) {.tags: [WriteIOEffect].} =
## Deletes the environment variable named ``key``.
builtin
proc fileExists*(filename: string): bool {.tags: [ReadIOEffect].} =