将 Chrome 从脚本启动到前面

Question

我想知道如何启动一个全新的 Chrome 实例（请参阅下面的脚本），它将被带到前面。目前，shell 脚本在后台打开新的 Chrome 实例，这不是最佳的。从 Applescript 执行 shell 脚本并不能解决这个问题。

有趣的是，如果我直接从 AppleScript 使用 shell 命令打开 Chrome，它似乎会在前台打开：

set q to "'/Applications/Google Chrome.app/Contents/MacOS/Google Chrome' --user-data-dir=/tmp/1234"
do shell script q

Applescript

do shell script "~/bin/chrome-fresh"

Shell 脚本

#!/bin/sh
# This is quite useful for front-enders, as it will launch a fresh
# Chrome instance with no loaded plugins or extensions that messes
# with your performance profiling or network debugging
#
# Install:
#       install -m 555 ~/Downloads/chrome-fresh  /usr/local/bin/

CHROME="/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"
ARGS="$@"

# make a fresh user directory
TMP_USERDIR=$(mktemp -d);

# avoid the dialog on the first startup
touch "$TMP_USERDIR/First Run";

# start chrome using a fresh user directory
"$CHROME"   --user-data-dir="$TMP_USERDIR"  "$ARGS"

Answer 1

在后台运行命令（将&放在命令末尾）。

使用$!获取最后一条命令的进程ID

# start chrome using a fresh user directory
"$CHROME" --activate-on-launch --user-data-dir="$TMP_USERDIR" "$ARGS" &
chromePid=$!
sleep 2
# bring Chrome 
osascript -e 'tell application "System Events"' -e "tell (first process whose its unix id is \"$chromePid\" ) to set frontmost to true" -e 'end tell'

Answer 2

在下面的脚本中，我混合使用了 Applescript 和 Shell 命令。我不是壳牌专家，所以可能有最有效的方法。至少，这个脚本是有效的：

1) 它需要包含特定名称的所有进程（即 = Chrome）

2) 它遍历所有找到的进程，并为每个进程获取自它开始使用“ps”shell 命令以来的时间。

3) 它将该时间与找到的先前时间进行比较，如果较低，则保留进程信息。最低时间值与流程的最后一个启动实例相关联。

4) 自启动以来时间最短的进程是最后一个：它将最前面的属性设置为 true 以使其成为前台。

tell application "System Events"
set lastTime to 3600 -- max possible value of start time
set lastPID to -1 -- impossible : used to check if process has been found !
set Prlist to every process whose name contains "Chrome"
repeat with aProc in Prlist
    set PStext to do shell script "PS -o etime -p " & unix id of aProc -- get the start time of the process
    -- output is dd-hh:mm:ss if process has been stared few days ago
    -- output is hh:mm:ss if process has been stared few hours ago
    -- output is mm:ss if process has been stared few minutes or seconds ago
    -- assumption is made that it just started few seconds ago
    -- convert in seconds = mm*60 + ss
    set runningTime to ((word 1 of paragraph 2 of PStext) as integer) * 60 + (word 2 of paragraph 2 of PStext) as integer
    if runningTime < lastTime then
        set lastTime to runningTime
        set lastPID to unix id of aProc
        set MyProc to aProc
    end if
end repeat
if lastPID > 0 then -- if a process has been found
    set the frontmost of MyProc to true -- set it in foreground
end if
end tell

我做了几个cmets来明确“ps”命令。如果有人知道如何从 ps 输出中直接获取时间，谢谢。 （我很确定应该有最简单的方法！）