我正在安装 ansible 注册变量中的包列表并使用以下命令输出它debug：
community.general.homebrew:
name: "{{ package }}"
state: present
register: package_install
until: package_install is succeeded
loop:
- pam-reattach
- pinentry-mac
- jorgelbg/tap/pinentry-touchid
loop_control:
loop_var: package
- debug:
msg: "{{ package_install }}"
msg:
changed: true
msg: All items completed
results:
- ansible_loop_var: package
attempts: 1
changed: false
changed_pkgs: []
failed: false
invocation:
module_args:
install_options: []
name:
- pam-reattach
path: /usr/local/bin:/opt/homebrew/bin:/home/linuxbrew/.linuxbrew/bin
state: present
update_homebrew: false
upgrade_all: false
upgrade_options: []
msg: 'Package already installed: pam-reattach'
package: pam-reattach
unchanged_pkgs:
- pam-reattach
- ansible_loop_var: package
attempts: 1
changed: true
changed_pkgs:
- pinentry-mac
failed: false
invocation:
module_args:
install_options: []
name:
- pinentry-mac
path: /usr/local/bin:/opt/homebrew/bin:/home/linuxbrew/.linuxbrew/bin
state: present
update_homebrew: false
upgrade_all: false
upgrade_options: []
msg: 'Package installed: pinentry-mac'
package: pinentry-mac
unchanged_pkgs: []
- ansible_loop_var: package
attempts: 1
changed: true
changed_pkgs:
- jorgelbg/tap/pinentry-touchid
failed: false
invocation:
module_args:
install_options: []
name:
- jorgelbg/tap/pinentry-touchid
path: /usr/local/bin:/opt/homebrew/bin:/home/linuxbrew/.linuxbrew/bin
state: present
update_homebrew: false
upgrade_all: false
upgrade_options: []
msg: 'Package installed: jorgelbg/tap/pinentry-touchid'
package: jorgelbg/tap/pinentry-touchid
unchanged_pkgs: []
skipped: false
注册的变量包含一个字典列表（或地图/哈希 - 如果我错了请纠正我），其中包含与每个安装package_install.results相关的数据。package
我需要检查在之前的任务中是否安装了pinentry-mac或包（每个项目中的键pinentry-touchid的值是否相等或），如果是，则运行指定的命令，例如：changedtruefalse
- command: <command>
when: >
`pinentry-mac` item's attribute `changed` is `True` within `package_install.results` \
OR \
`pinentry-touchid` item's attribute `changed` is `True` within `package_install.results`
我该如何做呢？
现在我做以下事情：
- command: <command>
when: "'pinentry' in item.package and item.changed"
loop: "{{ macterm_package_install.results }}"
但是在这种情况下，如果两个包都是在上一步中安装的，则该命令将运行两次，尽管该命令只需运行一次。
有什么方法可以正确做到这一点？任何想法都非常感谢。
更新
我能找到的“最佳”方法是这样的（分为两步）：
- name: Check if any of the pinentry packages were installed during previous tasks
set_fact:
pinentry_changed: True
when: "'pinentry-' in item.package and item.changed"
loop: "{{ macterm_package_install.results }}"
- command: <command>
when: pinentry_changed | default(false)
但实际上，有没有更优雅的方法来解决这个问题？
答案1
有很多选项。选择最适合您用例的选项。
- 创建词典
package_changed: "{{ package_install.results|
items2dict(key_name='package', value_name='changed') }}"
给出
package_changed:
jorgelbg/tap/pinentry-touchid: true
pam-reattach: false
pinentry-mac: true
那么条件就很简单了
- command: <command>
when: package_changed['pinentry-mac'] or
package_changed['jorgelbg/tap/pinentry-touchid']
- 创建已更改软件包的列表
changed_pkgs: "{{ package_install.results|
map(attribute='changed_pkgs')|flatten }}"
给出
changed_pkgs:
- pinentry-mac
- jorgelbg/tap/pinentry-touchid
测试每个包
- command: <command>
when: ('pinentry-mac' in changed_pkgs) or
('jorgelbg/tap/pinentry-touchid' in changed_pkgs)
或者如果可以将测试过的包放入列表中，则将列表相交
- command: <command>
when: changed_pkgs|intersect(test_pkgs)|length > 0
vars:
test_pkgs: [pinentry-mac, jorgelbg/tap/pinentry-touchid]
- 创建列表并映射基本名称
changed_pkgs: "{{ package_install.results|
map(attribute='changed_pkgs')|flatten|
map('basename')|list }}"
给出
changed_pkgs:
- pinentry-mac
- pinentry-touchid
仅使用包的名称
- command: <command>
when: ('pinentry-mac' in changed_pkgs) or
('pinentry-touchid' in changed_pkgs)