我正在使用oh-my-zsh,并且一直在尝试为sdkman开发自定义完成脚本。
但是,在尝试使某些命令相互化时遇到了一个小问题。
下面是完成脚本的开头。使用 _describe 方法的三个函数可以输出完成帮助。
#compdef sdk
zstyle ':completion:*:descriptions' format '%B%d%b'
# Gets candidate lists and removes all unecessery things just to get candidate names
__get_candidate_list() {
echo `sdk list | grep --color=never "$ sdk install" | sed 's/\$ sdk install //g' | sed -e 's/[\t ]//g;/^$/d'`
}
__get_current_installed_list() {
echo `sdk current | sed "s/Using://g" | sed "s/\:.*//g" | sed -e "s/[\t ]//g;/^$/d"`
}
__describe_commands() {
local -a commands
commands=(
'install: install a program'
'uninstall: uninstal an existing program'
)
_describe -t commands "Commands" commands && ret=0
}
__describe_install() {
local -a candidate_list
candidate_list=( $( __get_candidate_list ) )
_describe -t candidate_list "Candidates available" candidate_list && ret=0
}
__describe_uninstall() { # FIXME THis is not working, it only displays candidate list
local -a candidates_to_uninstall
candidates_to_uninstall=( $( __get_current_installed_list ) )
_describe -t candidates_to_uninstall "Uninstallable candidates" candidates_to_uninstall && ret=0
}
__ get_candidate_list 会回显以下值:
ant asciidoctorj bpipe ceylon crash cuba cxf gaiden glide gradle grails groovy groovyserv infrastructor java jbake kotlin kscript lazybones leiningen maven micronaut sbt scala spark springboot sshoogr vertx visualvm
__ get_current_installed_list 会回显以下值:
gradle java kotlin maven sbt scala
下面的脚本的第二部分是我们调用的所有内容,以便zsh正确使用完成脚本:
function _sdk() {
local ret=1
local target=$words[2]
_arguments -C \
'1: :->first_arg' \
'2: :->second_arg' \
&& ret=0
case $state in
first_arg)
__describe_commands
;;
second_arg)
case $target in
install)
__describe_install
;;
uninstall)
__describe_uninstall
;;
*)
;;
esac
;;
esac
return $ret
}
_sdk "$@"
问题如下:当我输入sdk install
时,我得到了正确的输出,但是当我使用sdk uninstall
时,来自 __ get_candidate_list 方法的一个仍然给了我来自 __ get_candidate_list 的输出,尽管我希望获得 __ get_current_installed_list 的输出。
编辑:经过一些调试,看来zsh并不是错误。我不知道为什么,但是sdkman从完成脚本内部为sdk list
和sdk current
(在sed命令之后)提供了相同的输出。在我的shell中,这两个命令都可以在shell中正常使用。
使用 _describe 方法的方式有问题吗? 还有什么我没看到的吗?
感谢您的帮助。
答案 0 :(得分:0)
所以我终于找到了解决此问题的方法,但这并不理想。
我选择在启动插件时在后台启动命令,并用结果填充文本文件,以便完成脚本以后可以使用它们。 下面是我在 zsh-sdkman.plugin.zsh 文件中使用的代码,以防我的github存储库消失:
# --------------------------
# -------- Executed on shell launch for completion help
# --------------------------
# NOTE: Sdkman seems to always output the candidate list rather than the currently installted list when we do this through the completion script
# There are two goals in the code below:
# - Optimization: the _sdkman_get_candidate_list command can take time, so it is done once and in background
# - Bug correction: correct the problem with sdkman command output explained above
# WARNING: We are setting this as a local variable because we don't have it yet at the time of initialization
# A better approach would be welcome
SDKMAN_DIR_LOCAL=~/.sdkman
# Custom variables for later
export ZSH_SDKMAN_CANDIDATE_LIST_HOME=~/.zsh-sdkman.candidate-list
export ZSH_SDKMAN_INSTALLED_LIST_HOME=~/.zsh-sdkman.current-installed-list
_sdkman_get_candidate_list() {
(sdk list | grep --color=never "$ sdk install" | sed 's/\$ sdk install //g' | sed -e 's/[\t ]//g;/^$/d' > $ZSH_SDKMAN_CANDIDATE_LIST_HOME &)
}
_sdkman_get_current_installed_list() {
(sdk current | sed "s/Using://g" | sed "s/\:.*//g" | sed -e "s/[\t ]//g;/^$/d" > $ZSH_SDKMAN_INSTALLED_LIST_HOME &)
}
# "sdk" command is not found if we don't do this
source "$SDKMAN_DIR_LOCAL/bin/sdkman-init.sh"
# Initialize files with available candidate list and currently installted candidates
_sdkman_get_candidate_list "$@"
_sdkman_get_current_installed_list "$@"
有关更多信息,您可以查看我的插件的完整存储库:https://github.com/matthieusb/zsh-sdkman
如果您还有其他更清洁的解决方案,我将愿意进行必要的修改,或者毫不犹豫地对项目提出请求。