# test code for the git module
# (c) 2014, James Tanner <tanner.jc@gmail.com>

# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.

- name: set role facts
  set_fact:
    checkout_dir: '{{ output_dir }}/git'
    repo_dir: '{{ output_dir }}/local_repos'
    repo_format1: 'https://github.com/jimi-c/test_role'
    repo_format2: 'git@github.com:jimi-c/test_role.git'
    repo_format3: 'ssh://git@github.com/jimi-c/test_role.git'
    repo_submodules: 'https://github.com/abadger/test_submodules.git'
    repo_submodules_newer: 'https://github.com/abadger/test_submodules_newer.git'
    repo_submodule1: 'https://github.com/abadger/test_submodules_subm1.git'
    repo_submodule1_newer: 'https://github.com/abadger/test_submodules_subm1_newer.git'
    repo_submodule2: 'https://github.com/abadger/test_submodules_subm2.git'
    repo_update_url_1: 'https://github.com/ansible-test-robinro/git-test-old'
    repo_update_url_2: 'https://github.com/ansible-test-robinro/git-test-new'
    repo_depth_url: 'https://github.com/ansible-test-robinro/git-test-shallow-depth'
    known_host_files:
      - "{{ lookup('env','HOME') }}/.ssh/known_hosts"
      - '/etc/ssh/ssh_known_hosts'

- name: clean out the output_dir
  shell: rm -rf {{ output_dir }}/*

- name: verify that git is installed so this test can continue
  shell: which git

- name: get git version, only newer than 1.8.2 has fixed git depth
  shell: git --version | grep 'git version' | sed 's/git version //'
  register: git_version

- name: set dummy git config
  shell: git config --global user.email "noreply@example.com"; git config --global user.name "Ansible Test Runner"

- name: create repo_dir
  file: path={{repo_dir}} state=directory

#
# Test repo=https://github.com/...
#


- name: initial checkout
  git: repo={{ repo_format1 }} dest={{ checkout_dir }}
  register: git_result

- name: verify information about the initial clone
  assert:
    that:
      - "'before' in git_result"
      - "'after' in git_result"
      - "not git_result.before"
      - "git_result.changed"

- name: repeated checkout
  git: repo={{ repo_format1 }} dest={{ checkout_dir }}
  register: git_result2

- name: check for tags
  stat: path={{ checkout_dir }}/.git/refs/tags
  register: tags

- name: check for HEAD
  stat: path={{ checkout_dir }}/.git/HEAD
  register: head

- name: assert presence of tags/trunk/branches
  assert:
    that:
      - "tags.stat.isdir"
      - "head.stat.isreg"

- name: verify on a reclone things are marked unchanged
  assert:
    that:
      - "not git_result2.changed"

#
# Test repo=git@github.com:/...
# Requires variable: github_ssh_private_key
#

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: remove known_host files
  file: state=absent path={{ item }}
  with_items: "{{known_host_files}}"

- name: checkout ssh://git@github.com repo without accept_hostkey (expected fail)
  git: repo={{ repo_format2 }} dest={{ checkout_dir }}
  register: git_result
  ignore_errors: true

- assert:
    that:
      - 'git_result.failed'
      - 'git_result.msg == "github.com has an unknown hostkey. Set accept_hostkey to True or manually add the hostkey prior to running the git module"'

- name: checkout git@github.com repo with accept_hostkey (expected pass)
  git:
    repo: '{{ repo_format2 }}'
    dest: '{{ checkout_dir }}'
    accept_hostkey: true
    key_file: '{{ github_ssh_private_key }}'
  register: git_result
  when: github_ssh_private_key is defined

- assert:
    that:
      - 'git_result.changed'
  when: not git_result|skipped

#
# Test repo=ssh://git@github.com/...
# Requires variable: github_ssh_private_key
#

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: checkout ssh://git@github.com repo with accept_hostkey (expected pass)
  git:
    repo: '{{ repo_format3 }}'
    dest: '{{ checkout_dir }}'
    version: 'master'
    accept_hostkey: false # should already have been accepted
    key_file: '{{ github_ssh_private_key }}'
  register: git_result
  when: github_ssh_private_key is defined

- assert:
    that:
      - 'git_result.changed'
  when: not git_result|skipped

# Test a non-updating repo query with no destination specified

- name: get info on a repo without updating and with no destination specified
  git:
    repo: '{{ repo_format1 }}'
    update: no
    clone: no
    accept_hostkey: yes
  register: git_result

- assert:
    that:
      - 'git_result.changed'

# Test that a specific revision can be checked out

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: clone to specific revision
  git:
    repo: "{{ repo_format1 }}"
    dest: "{{ checkout_dir }}"
    version: df4612ba925fbc1b3c51cbb006f51a0443bd2ce9

- name: check HEAD after clone to revision
  command: git rev-parse HEAD chdir="{{ checkout_dir }}"
  register: git_result

- assert:
    that:
      - 'git_result.stdout == "df4612ba925fbc1b3c51cbb006f51a0443bd2ce9"'

- name: update to specific revision
  git:
    repo: "{{ repo_format1 }}"
    dest: "{{ checkout_dir }}"
    version: 4e739a34719654db7b04896966e2354e1256ea5d
  register: git_result

- assert:
    that:
      - 'git_result.changed'

- name: check HEAD after update to revision
  command: git rev-parse HEAD chdir="{{ checkout_dir }}"
  register: git_result

- assert:
    that:
      - 'git_result.stdout == "4e739a34719654db7b04896966e2354e1256ea5d"'

# Test a revision not available under refs/heads/ or refs/tags/

- name: attempt to get unavailable revision
  git:
    repo: "{{ repo_format1 }}"
    dest: "{{ checkout_dir }}"
    version: 2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b
  ignore_errors: true
  register: git_result

- assert:
    that:
      - 'git_result.failed'

# Same as the previous test, but this time we specify which ref
# contains the SHA1
- name: update to revision by specifying the refspec
  git:
    repo: https://github.com/ansible/ansible-examples.git
    dest: '{{ checkout_dir }}'
    version: 2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b
    refspec: refs/pull/7/merge

- name: check HEAD after update with refspec
  command: git rev-parse HEAD chdir="{{ checkout_dir }}"
  register: git_result

- assert:
    that:
      - 'git_result.stdout == "2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b"'

# try out combination of refspec and depth
- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: update to revision by specifying the refspec with depth=1
  git:
    repo: https://github.com/ansible/ansible-examples.git
    dest: '{{ checkout_dir }}'
    version: 2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b
    refspec: refs/pull/7/merge
    depth: 1

- name: check HEAD after update with refspec
  command: git rev-parse HEAD chdir="{{ checkout_dir }}"
  register: git_result

- assert:
    that:
      - 'git_result.stdout == "2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b"'

- name: try to access other commit
  shell: git checkout 0ce1096
  register: checkout_shallow
  failed_when: False
  args:
    chdir: '{{ checkout_dir }}'

- name: make sure the old commit was not fetched
  assert:
    that: 
      - checkout_shallow.rc == 1
      - checkout_shallow|failed
  when: git_version.stdout | version_compare("1.8.2", '>=')

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: clone to revision by specifying the refspec
  git:
    repo: https://github.com/ansible/ansible-examples.git
    dest: '{{ checkout_dir }}'
    version: 2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b
    refspec: refs/pull/7/merge

- name: check HEAD after update with refspec
  command: git rev-parse HEAD chdir="{{ checkout_dir }}"
  register: git_result

- assert:
    that:
      - 'git_result.stdout == "2cfde3668b8bb10fbe2b9d5cec486025ad8cc51b"'

#
# Submodule tests
#

# Repository A with submodules defined  (repo_submodules)
#   .gitmodules file points to Repository I
# Repository B forked from A that has newer commits (repo_submodules_newer)
#   .gitmodules file points to Repository II instead of I
#   .gitmodules file also points to Repository III
# Repository I for submodule1 (repo_submodule1)
#   Has 1 file checked in
# Repository II forked from I that has newer commits (repo_submodule1_newer)
#   Has 2 files checked in
# Repository III for a second submodule (repo_submodule2)
#   Has 1 file checked in

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: Test that clone without recursive does not retrieve submodules
  git:
    repo: '{{ repo_submodules }}'
    dest: '{{ checkout_dir }}'
    recursive: no

- command: 'ls -1a {{ checkout_dir }}/submodule1'
  register: submodule1

- assert:
    that: '{{ submodule1.stdout_lines|length }} == 2'

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}


- name: Test that clone with recursive retrieves submodules
  git:
    repo: '{{ repo_submodules }}'
    dest: '{{ checkout_dir }}'
    recursive: yes

- command: 'ls -1a {{ checkout_dir }}/submodule1'
  register: submodule1

- assert:
    that: '{{ submodule1.stdout_lines|length }} == 4'

- name: Copy the checkout so we can run several different tests on it
  command: 'cp -pr {{ checkout_dir }} {{ checkout_dir }}.bak'



- name: Test that update without recursive does not change submodules
  command: 'git config --replace-all remote.origin.url {{ repo_submodules_newer }}'
  args:
    chdir: '{{ checkout_dir }}'

- git:
    repo: '{{ repo_submodules_newer }}'
    dest: '{{ checkout_dir }}'
    recursive: no
    update: yes
    track_submodules: yes

- command: 'ls -1a {{ checkout_dir }}/submodule1'
  register: submodule1

- stat:
    path: '{{ checkout_dir }}/submodule2'
  register: submodule2

- command: 'ls -1a {{ checkout_dir }}/submodule2'
  register: submodule2

- assert:
    that: '{{ submodule1.stdout_lines|length }} == 4'
- assert:
    that: '{{ submodule2.stdout_lines|length }} == 2'



- name: Restore checkout to prior state
  file: state=absent path={{ checkout_dir }}
- command: 'cp -pr {{ checkout_dir }}.bak {{ checkout_dir }}'

- name: Test that update with recursive updated existing submodules
  command: 'git config --replace-all remote.origin.url {{ repo_submodules_newer }}'
  args:
    chdir: '{{ checkout_dir }}'

- git:
    repo: '{{ repo_submodules_newer }}'
    dest: '{{ checkout_dir }}'
    update: yes
    recursive: yes
    track_submodules: yes

- command: 'ls -1a {{ checkout_dir }}/submodule1'
  register: submodule1

- assert:
    that: '{{ submodule1.stdout_lines|length }} == 5'


- name: Test that update with recursive found new submodules
  command: 'ls -1a {{ checkout_dir }}/submodule2'
  register: submodule2

- assert:
    that: '{{ submodule2.stdout_lines|length }} == 4'
# test change of repo url
# see https://github.com/ansible/ansible-modules-core/pull/721

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: Clone example git repo
  git:
    repo: '{{ repo_update_url_1 }}'
    dest: '{{ checkout_dir }}'

- name: Clone repo with changed url to the same place
  git:
    repo: '{{ repo_update_url_2 }}'
    dest: '{{ checkout_dir }}'
  register: clone2

- assert:
    that: "clone2|success"

- name: check url updated
  shell: git remote show origin | grep Fetch
  register: remote_url
  args:
    chdir: '{{ checkout_dir }}'

- assert:
    that: 
    - "'git-test-new' in remote_url.stdout"
    - "'git-test-old' not in remote_url.stdout"

- name: check for new content in git-test-new
  stat: path={{ checkout_dir }}/newfilename
  register: repo_content

- name: assert presence of new file in repo (i.e. working copy updated)
  assert:
    that: "repo_content.stat.exists"

# Test that checkout by branch works when the branch is not in our current repo but the sha is

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: Clone example git repo that we're going to modify
  git:
    repo: '{{ repo_update_url_1 }}'
    dest: '{{ checkout_dir }}/repo'

- name: Clone the repo again - this is what we test
  git:
    repo: '{{ checkout_dir }}/repo'
    dest: '{{ checkout_dir }}/checkout'

- name: Add a branch to the repo
  command: git branch new-branch
  args:
    chdir: '{{ checkout_dir }}/repo'

- name: Checkout the new branch in the checkout
  git:
    repo: '{{ checkout_dir}}/repo'
    version: 'new-branch'
    dest: '{{ checkout_dir }}/checkout'


# Test the depth option and fetching revisions that were ignored first
  
- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: Clone example git repo with depth=1
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1

- name: try to access earlier commit
  shell: git checkout 79624b4
  register: checkout_early
  failed_when: False
  args:
    chdir: '{{ checkout_dir }}'

- name: make sure the old commit was not fetched
  assert:
    that: checkout_early.rc == 1
  when: git_version.stdout | version_compare("1.8.2", '>=')

# tests https://github.com/ansible/ansible/issues/14954
- name: fetch repo again with depth=1
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1
  register: checkout2

- assert:
    that: "not checkout2|changed"
  when: git_version.stdout | version_compare("1.8.2", '>=')

- name: again try to access earlier commit
  shell: git checkout 79624b4
  register: checkout_early
  failed_when: False
  args:
    chdir: '{{ checkout_dir }}'

- name: again make sure the old commit was not fetched
  assert:
    that: checkout_early.rc == 1
  when: git_version.stdout | version_compare("1.8.2", '>=')
    
# make sure we are still able to fetch other versions
- name: Clone same repo with older version
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1
    version: earlytag
  register: cloneold

- assert:
    that: "cloneold|success"

- name: try to access earlier commit
  shell: git checkout 79624b4
  args:
    chdir: '{{ checkout_dir }}'

# test for  https://github.com/ansible/ansible-modules-core/issues/527
# clone a repo, add a tag to the same commit and try to checkout the new commit


- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: checkout example repo
  git: repo={{ repo_format1 }} dest={{ checkout_dir }}

- name: clone example repo locally
  git: repo={{ checkout_dir }} dest={{checkout_dir}}.copy

- name: get tags of head
  command: git tag --contains chdir="{{ checkout_dir }}.copy"
  register: listoftags

- name: make sure the tag does not yet exist
  assert:
    that:
      - "'newtag' not in listoftags.stdout_lines"

- name: add tag in orig repo
  command: git tag newtag chdir="{{ checkout_dir }}"

- name: update copy with new tag
  git: repo={{ checkout_dir }} dest={{checkout_dir}}.copy version=newtag
  register: update_new_tag

- name: get tags of new head
  command: git tag --contains chdir="{{ checkout_dir }}.copy"
  register: listoftags

- name: check new head
  assert:
    that:
      - not update_new_tag|changed
      - "'newtag' in listoftags.stdout_lines"


- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}


  # Test for https://github.com/ansible/ansible-modules-core/issues/3456
  # clone a repo with depth and version specified

- name: clone repo with both version and depth specified
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1
    version: master

- name: run a second time (now fetch, not clone)
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1
    version: master
  register: git_fetch

- name: ensure the fetch succeeded
  assert:
    that: git_fetch|success


- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

- name: clone repo with both version and depth specified
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1
    version: master
  when: git_version.stdout | version_compare("1.8.2", '>=')

- name: switch to older branch with depth=1 (uses fetch)
  git:
    repo: '{{ repo_depth_url }}'
    dest: '{{ checkout_dir }}'
    depth: 1
    version: earlybranch
  register: git_fetch
  when: git_version.stdout | version_compare("1.8.2", '>=')

- name: ensure the fetch succeeded
  assert:
    that: git_fetch|success
  when: git_version.stdout | version_compare("1.8.2", '>=')

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}

# test for https://github.com/ansible/ansible-modules-core/issues/3782
# make sure shallow fetch works when no version is specified

- name: prepare old git repo
  shell: git init; echo "1" > a; git add a; git commit -m "1"
  args:
    chdir: "{{repo_dir}}"

- name: checkout old repo
  git:
    repo: '{{ repo_dir }}'
    dest: '{{ checkout_dir }}'
    depth: 1

- name: "update repo"
  shell: echo "2" > a; git commit -a -m "2"
  args:
    chdir: "{{repo_dir}}"

- name: fetch updated repo
  git:
    repo: '{{ repo_dir }}'
    dest: '{{ checkout_dir }}'
    depth: 1
  register: git_fetch
  ignore_errors: yes

- name: read file
  shell: cat {{ checkout_dir }}/a

- name: check update arrived
  assert:
    that:
      - "{{ lookup('file', checkout_dir+'/a' )}} == 2"
      - git_fetch|changed

- name: clear checkout_dir
  file: state=absent path={{ checkout_dir }}