bin-auto-switcher

README

Bin-Auto-Switcher

Auto switch binary in different directories by rules.

1. Install

go install github.com/fsgo/bin-auto-switcher@latest

2. Config

config file:

~/.config/bin-auto-switcher/{cmd}.toml

3. Example

3.1 Auto Switch Go versions

you should already install multiple Go versions

1.create Symlink for go:

bin-auto-switcher ln go1.16.7 go

or

# cd ~/go/bin/
# ln -s bin-auto-switcher go

2. edit config file go.toml (~/.config/bin-auto-switcher/go.toml):

# config for 'go' command

# default rule
[[Rules]]
Cmd = "go1.19.3"           # command, Required
# Env =["k1=v1","k2=v2"]   # extra env variable, Optional
# Args = ["-k","-v"]       # extra cmd args, Optional

# [[Rules.Pre]]                # Optional, pre command
# Match = ""                   # Optional, regexp to match Args,eg "^add\\s" will match "git add ."
# Cmd   = ""                   # Required
# Args  = [""]                 # Optional
# AllowFail = true/false       # Optional
# Timeout = "2m"               # Optional, exec timeout, default 1 min

# [[Rules.Post]]               # Optional, post command
# Cmd  = ""
# Args = [""]

# rule for some dir
[[Rules]]
Dir = ["~/workspace/fsgo/myserver"]
Cmd = "go1.17"

# rule for other dir
# [[Rules]]
# Dir = ["~/workspace/job"]
# Cmd = "go1.18"

3. Check It:

---

① At ~/workspace/fsgo/myserver:

# go version
go version go1.17 darwin/amd64

---

② At other dirs (e.g.: ~/workspace/):

# go version
go version go1.19.3 darwin/amd64

3.2 git hooks

1. create Symlink for git:

bin-auto-switcher ln /usr/local/bin/git git

1. edit config: ~/.config/bin-auto-switcher/git.toml

[[Rules]]
Cmd = "/usr/local/bin/git"              

# with env "BAS_NoHook=true" to disable Pre and Post Hooks
[[Rules.Pre]]               
Match = "^add\\s"       # when exec "git add" subCommand
Cond  = ["go_module"]   # condition: in go module dir
Cmd   = "gorgeous"      # https://github.com/fsgo/go_fmt

[[Rules.Pre]]               
Match = "^add\\s"
# use inner command 'find-exec' to find filename 'go.mod' 
# and then exec "staticcheck ./..." in the dir
Cmd   = "inner:find-exec"
Args  = ["-name","go.mod","staticcheck","./..."]
AllowFail = true        # allow cmd fail