mirror of
https://github.com/Luzifer/envrun.git
synced 2024-11-14 09:02:42 +00:00
47 lines
1.4 KiB
Markdown
47 lines
1.4 KiB
Markdown
# Luzifer / envrun
|
|
|
|
`envrun` is a small helper utility I wrote for myself to debug programs and scripts during their development expecting environment variables to be set to special values. Sure there is [gin]() for go webservers doing the same but I wanted something also for commandline utilities.
|
|
|
|
It reads a `.env` file (configurable) from the current directory and then either takes its own environment variables or a clean set and adds the env variables found in `.env` to it. The resulting set is passed to the command you put as arguments to `envrun`.
|
|
|
|
## Examples
|
|
|
|
To visualize the effect of the utility the test command is `python test.py` with this simple python script:
|
|
|
|
```python
|
|
import os
|
|
|
|
for k in os.environ.keys():
|
|
print "{} = {}".format(k, os.environ[k])
|
|
```
|
|
|
|
It just prints the current environment to `STDOUT` and exits.
|
|
|
|
```bash
|
|
# cat .env
|
|
MY_TEST_VAR=hello world
|
|
ANOTHER_VAR=foo
|
|
|
|
# python test.py | grep MY_TEST_VAR
|
|
## No output on this command
|
|
|
|
# envrun --help
|
|
Usage of envrun:
|
|
--clean[=false]: Do not pass current environment to child process
|
|
--env-file=".env": Location of the environment file
|
|
--q[=false]: Suppress informational messages from envrun
|
|
|
|
# envrun python test.py | grep MY_TEST_VAR
|
|
MY_TEST_VAR = hello world
|
|
|
|
# envrun python test.py | wc -l
|
|
45
|
|
|
|
# envrun --clean python test.py | wc -l
|
|
3
|
|
|
|
# envrun --clean python test.py
|
|
__CF_USER_TEXT_ENCODING = 0x1F5:0x0:0x0
|
|
ANOTHER_VAR = foo
|
|
MY_TEST_VAR = hello world
|
|
```
|