最近比較少用 IDE 後，coding 少了些自動化的回饋機制總覺得缺了點什麼，手動執行不知不覺也浪費了許多時間
想了想, 有些重複流程是可以用程式自動化的, 只要有程式來偵測目錄變動並自動執行程式就夠了，在 linux 裡確沒找到相關的工具(inotify-tools), 於是用 Go 做了一個命令列工具 watchf ，能彈性組合命令, 也可以在多個作業系統上使用
Usage
Usage:
watchf [options]
Options:
-V=false: Show debugging messages
-c=[]: Add arbitrary command (repeatable)
-e=[all]: Listen for specific event(s) (comma separated list)
-f=".watchf.conf": Specifies a configuration file
-i=0: The interval limit the frequency of the command executions, if equal to 0, there is no limit (time unit: ns/us/ms/s/m/h)
-p=".*": File name matches regular expression pattern (perl-style)
-r=false: Watch directories recursively
-s=false: Stop the watchf Daemon (windows is not support)
-v=false: Show version and exit
-w=false: Write command-line arguments to configuration file (write and exit)
Events:
all Create/Delete/Modify/Rename
create File/directory created in watched directory
delete File/directory deleted from watched directory
modify File was modified or Metadata changed
rename File moved out of watched directory
Variables:
%f: The filename of changed file
%t: The event type of file changes
Example 1
程式碼存檔時從另一個 terminal 看到程式碼錯誤分析、compiler 編譯訊息跟測試結果
以Go為例:
watchf -e "modify,delete" -c "go vet" -c "go test" -c "go install" -p "\.go$"
以Java為例:
watchf -r -i 5s -e "modify,delete" -c "mvn test" -p "\.java$"
Example 2
放置一個背景程式&偵測當前目錄與子目錄的檔案變動, 接著自動同步檔案到另一個目錄(或著遠端目錄)
watchf -r -c "rsync -aq $SRC $DST" &
停掉背景程式, 只要在同個執行目錄裡下watchf -s命令
Example 3
將常用參數寫入設定檔，之後只要在同個執行目錄裡下watchf命令不用給定參數
watchf -e "modify,delete" -c "go vet" -c "go test" -c "go install" -p "\.go$" -w
