1 unstable release
0.2.1 | Jun 8, 2023 |
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#45 in #dotenv
15KB
144 lines
fenv
new env
command
Requirements
This project use clap and clap require rust v1.64 or higher version. Therefore, this program require rust v1.64 or higher version.
Getting Started
$ cat << EOF > /tmp/.env.sample
ENV_A=true
EOF
$ fenv -f /tmp/.env.sample ENV_B=true sh -c 'echo ENV_A=$ENV_A; echo ENV_B=$ENV_B'
ENV_A=true
ENV_B=true
Usage
env command with dotenv
Usage: fenv [OPTIONS] [ARGUMENTS]...
Arguments:
[ARGUMENTS]... environment set and comand arguments [format: [NAME=VALUE]... [COMMAND [ARG]...]]
Options:
-f <DOTENV_FILES> dotenv file path
--color <COLOR_MODE> color mode [default: auto] [possible values: never, auto, always]
-h, --help Print help
-V, --version Print version
Specifying a .env
file with -f
will use dotenvy to read the .env
file with the specified path.
Suppose you want to load .env
with following contents:
ENV_A=1
ENV_B=2
Assuming you have this file stored in ~/.env
and want to load it.
To achieve this, execute following command:
$ fenv -f ~/.env sh -c 'echo ENV_A=$ENV_A; echo ENV_B=$ENV_B'
ENV_A=1
ENV_B=2
-f
may be specified multiple times.
In that case, files, specified by -f
are read in the specified order.
# この場合、 ~/.env.1 -> ~/.env2 の順番に読み込まれる
fenv -f ~/.env.1 -f ~/.env.2
Alternatively, environment variables can be specified in same way as in conventional env
.
$ fenv ENV=true sh -c 'echo ENV=$ENV'
ENV=true
It can also be combined.
$ cat << EOF > ~/.env
ENV_A=true
EOF
$ fenv -f ~/.env ENV_B=true sh -c 'echo ENV_A=$ENV_A; echo ENV_B=$ENV_B'
ENV_A=true
ENV_B=true
If specified no program, all currentyly set environment variables are displayed.
$ fenv
PWD=/home/example
PATH=...
...
Documentation
Symbol restrict
Environment variable name can use any character except =
.
On the other hand, environment variable value can use any character.
$ fenv 🚀=✨
...
🚀=✨
...
Colorized output
If you want to output environment variable, you set color mode by using --color
option.
auto
mode: default mode. If you want to specify this mode, set--color=auto
. If stdout is tty, environment variables output is colorized, and is not colorized otherwise.never
mode: set--color=never
. environment variables output is not colorized.always
mode: set--color=always
. environment variables output is always colorized.
# colorized outputs
fenv --color=always
Dependencies
~1.3–8.5MB
~73K SLoC