gerrit

[!NOTE|label:references:]
Gerrit Code Review - Access Controls
Special and magic references
Magic references
Access Categories

.gitconfig

$ git config --global gitreview.username <UserName>
$ git config --global gitreview.remote origin

default groups

[!TIP]
Gerrit Code Review - Access Controls

System Groups
Predefined Groups
- Administrators
- Non-Interactive Users
- ~~Service Users~~

Special references

refs/changes/*
refs/meta/config
refs/meta/dashboards/*
refs/notes/review

Magic references

refs/for/<branch ref>

refs/meta/config

get project.config

clone the repo

$ git clone <repo url>
# or update the local repo to HEAD
$ git pull [--rebase]

checkout meta/config

$ git fetch origin refs/meta/config:refs/remotes/origin/meta/config
$ git checkout meta/config

$ git fetch ssh://localhost:29418/project refs/meta/config
$ git checkout FETCH_HEAD

publish to remote

$ git add --all .
$ git commit -m "<add your comments here>"

submit directly

$ git push origin meta/config:meta/config

$ git push origin HEAD:refs/meta/config

submit review

[!NOTE|label:references:]
smirn0v/gist:b8e6c4bedebed23a0328

$ git push origin HEAD:refs/for/refs/meta/config

$ git push origin meta/config:refs/for/refs/meta/config

update meta/config if remotes update

$ git fetch origin --force refs/meta/config:refs/remotes/origin/meta/config

$ git pull origin refs/meta/config
# or
$ git merge meta/config

reset to remotes

$ git fetch origin --force refs/meta/config:refs/remotes/origin/meta/config
$ git reset --hard remotes/origin/meta/config

useful refs

sandbox:

refs/heads/sandbox/${username}/*

its-jira:

for project specific

[commentlink "its-jira"]
  match = ^[ \\t]*PROJECT-([0-9]{1,5}):
  link = https://<jira-domain>:<jira-port>/browse/PROJECT-$1

for common setup

[plugin "its-jira"]
  association = OPTIONAL
  branch = ^refs/heads/.*
  branch = ^refs/heads/stable-.*
  commentOnChangeAbandoned = false
  commentOnChangeCreated = true
  commentOnChangeMerged = true
  commentOnChangeRestored = false
  commentOnCommentAdded = false
  commentOnFirstLinkedPatchSetCreated = true
  commentOnPatchSetCreated = false
  commentOnRefUpdatedGitWeb = true
  enabled = enforced
[commentlink "its-jira"]
  match = ^[ \\t]*([A-Za-z]*-[0-9]{1,5}):
  link = https://<jira-domain>:<jira-port>/browse/$1
[commentlink "changeid"]
  match = (I[0-9a-f]{8,40})
  link = "#/q/$1"

verified label

[label "Verified"]
    function = MaxWithBlock
    defaultValue = 0
    copyAllScoresIfNoCodeChange = true
    value = -1 Fails
    value =  0 No score
    value = +1 Verified

change-id

[receive]
  requireChangeId = true
  createNewChangeForAllNotInTarget = false
  maxObjectSizeLimit = 6m
  maxBatchChanges = 1
[commentlink "changeid"]
  match = (I[0-9a-f]{8,40})
  link = "#/q/$1"

freeze master branch

[!TIP] One quirk is that the shortest possible pattern expansion must be a valid ref name thus ^refs/heads/.*/name will fail because refs/heads//name is not a valid reference but ^refs/heads/.+/name will work.

About the refs/for namespace

[!TIP] references:
what is the use refs/for/refs/* in gerrit?
refs/for/* syntax is just a short name for refs/for/refs/*:

project.config

[access "refs/for/refs/heads/master"]
  push = block group user/Marslo Jiao (marslo)
  push = block group Registered Users
  submit = block group Registered Users
  submit = block group group user/Marslo Jiao (marslo)
  addPatchSet = block group user/Marslo Jiao (marslo)
  addPatchSet = block group Registered Users
  pushMerge = block group user/Marslo Jiao (marslo)
  pushMerge = block group Registered Users

groups

...
global:Project-Owners      Project Owners
global:Registered-Users    Registered Users
...
user:marslo                user/Marslo Jiao(marslo)
...

freeze multiple branches (stable & release) for the specific account

project.config

[access "^refs/for/refs/heads/(stable|release)$"]
  push = block group Registered Users
  submit = block group Registered Users
  addPatchSet = block group Registered Users
  pushMerge = block group Registered Users
[access "^refs/heads/(stable|release)$"]
  read = group user/Marslo Jiao (marslo)
  push = +force group user/Marslo Jiao (marslo)
  pushMerge = group user/Marslo Jiao (marslo)

or using exclusiveGroupPermissions

[access "^refs/heads/backup/(master|dev|staging|stable)/.+$"]
       exclusiveGroupPermissions = create delete push pushMerge
       create = group Project Owners
       create = block group Registered Users
       delete = block group Registered Users
       push = block group Registered Users
       pushMerge = block group Registered Users
[access "^refs/for/refs/heads/backup/(master|dev|staging|stable)/.+$"]
       exclusiveGroupPermissions = addPatchSet create push pushMerge submit
       addPatchSet = block group Registered Users
       create = block group Registered Users
       push = block group Registered Users
       pushMerge = block group Registered Users
       submit = block group Registered Users

groups

...
global:Project-Owners      Project Owners
global:Registered-Users    Registered Users
...
user:marslo                user/Marslo Jiao(marslo)
...

restriction for branches (`feature1`, `feature2` and `master`) for only allow code review merge, forbidden code push

project.config

[access "refs/*"]
  read = group Project Owners
  read = group user/Marslo Jiao (marslo)
[access "refs/for/*"]
  addPatchSet = group Project Owners
  addPatchSet = group user/Marslo Jiao (marslo)
  push = group Project Owners
  push = group user/Marslo Jiao (marslo)
  pushMerge = group Project Owners
  pushMerge = group user/Marslo Jiao (marslo)
[access "^refs/heads/(feature1|feature2|master)$"]
  push = block group Registered Users
  pushMerge = block group Registered Users
  submit = group Change Owner

groups

...
global:Project-Owners      Project Owners
global:Registered-Users    Registered Users
...
user:marslo                user/Marslo Jiao(marslo)
...

example of project.config

project.config

[project]
  description = Gerrit Code Review
[access "refs/*"]
  owner = group google/gerritcodereview-maintainers@googlegroups.com
[access "refs/heads/*"]
  label-Code-Review = -2..+2 group google/gerritcodereview-maintainers@googlegroups.com
  label-Code-Review = -2..+2 group polygerrit-maintainers
  label-Verified = -1..+1 group Change Owner
  label-Verified = -1..+1 group gerrit-verifiers
  label-Code-Style = -1..+1 group gerrit-verifiers
  label-Verified-Notedb = -1..+1 group gerrit-verifiers
  label-Library-Compliance = -1..+1 group gerrit-lib
  label-Library-Compliance = -1..+0 group google/gerritcodereview-maintainers@googlegroups.com
  submit = group Change Owner
  submit = group google/gerritcodereview-maintainers@googlegroups.com
  create = group google/gerritcodereview-maintainers@googlegroups.com
  abandon = group gerrit-verifiers
  editTopicName = +force group google/gerritcodereview-maintainers@googlegroups.com
  removeReviewer = group google/gerritcodereview-maintainers@googlegroups.com
  publishDrafts = group google/gerritcodereview-maintainers@googlegroups.com
[access "refs/tags/*"]
  create = group gerrit-release-creators
  create = group google/gerritcodereview-maintainers@googlegroups.com
  createTag = group gerrit-release-creators
  createTag = group google/gerritcodereview-maintainers@googlegroups.com
  createSignedTag = group gerrit-release-creators
  createSignedTag = group google/gerritcodereview-maintainers@googlegroups.com
[access]
  inheritFrom = Public-Projects
[receive]
  rejectImplicitMerges = true
[reviewer]
  enableByEmail = true
[label "Verified"]
  function = MaxNoBlock
  copyAllScoresIfNoCodeChange = true
  value = -1 Fails
  value = 0 No score
  value = +1 Verified
  defaultValue = 0
[label "Code-Style"]
  function = MaxWithBlock
  copyAllScoresIfNoCodeChange = true
  value = -1 Wrong Style or Formatting
  value = 0 No score
  value = +1 Style Verified
  defaultValue = 0
[label "Library-Compliance"]
  function = MaxWithBlock
  copyAllScoresIfNoCodeChange = true
  copyAllScoresOnTrivialRebase = true
  value = -1 Do not submit
  value = 0 No score
  value = +1 Approved
  defaultValue = 0
[access "refs/for/refs/meta/dashboards/*"]
  push = group google/gerritcodereview-maintainers@googlegroups.com
[access "refs/meta/dashboards/*"]
  label-Code-Review = -2..+2 group google/gerritcodereview-maintainers@googlegroups.com
  label-Code-Review = -1..+1 group Registered Users
  label-Verified = -1..+1 group gerrit-verifiers
  label-Verified = -1..+1 group google/gerritcodereview-maintainers@googlegroups.com
  submit = group google/gerritcodereview-maintainers@googlegroups.com
  forgeAuthor = group google/gerritcodereview-maintainers@googlegroups.com
  label-Code-Style = -1..+1 group google/gerritcodereview-maintainers@googlegroups.com
[access "refs/for/refs/meta/config"]
  push = group gerrit-verifiers
[notify "polygerrit-reviews"]
  email = polygerrit-reviews@google.com
  type = all_comments
  type = submitted_changes
  header = cc
  filter = file:polygerrit-ui
[access "refs/heads/infra/config"]
  push = group gerrit-tricium-admins

rules.pl

submit by a non author

[!TIP] check also:
Exclude author from gerrit review

submit_rule(S) :-
    gerrit:default_submit(X),
    X =.. [submit | Ls],
    add_non_author_approval(Ls, R),
    S =.. [submit | R].

add_non_author_approval(S1, S2) :-
    gerrit:commit_author(A),
    gerrit:commit_label(label('Code-Review', 2), R),
    R \= A, !,
    S2 = [label('Non-Author-Code-Review', ok(R)) | S1].
add_non_author_approval(S1, [label('Non-Author-Code-Review', need(_)) | S1]).

by project.config

[access "refs/*"]
  label-Code-Review = block -2..+2 group Change Owner
  exclusiveGroupPermissions = label-Code-Review

ticket check

[!TIP] check also:
Prolog Gerrit - validate label if commit message contains a specific string

optional validation

submit_rule(S) :-
    gerrit:default_submit(X),
    X =.. [submit | Ls],
    require_ticket_check_for_ticket(Ls, Nls),
    S =.. [submit | Nls].

require_ticket_check_for_ticket(S1, S2) :-
    gerrit:commit_message_matches('^issue-[\\d]+\\s?:\\s?[\\w\\W]+'),
    !,
    S2 = [label('Ticket-Checked', need(_)) | S1].

require_ticket_check_for_ticket(S1, S2) :-
    !, S2 = S1.

optional validation with auto vote

submit_rule(S) :-
    gerrit:default_submit(X),
    X =.. [submit | Ls],
    require_ticket_check_for_ticket(Ls, Nls),
    S =.. [submit | Nls].

require_ticket_check_for_ticket(S1, S2) :-
    gerrit:commit_message_matches('\\[issue-[\\d]{2}\\]\\s?:\\s?[\\w\\W]+'),
    !,
    S2 = [label('Ticket-Checked', ok(user(824))) | S1].

require_ticket_check_for_ticket(S1, S2) :-
    !, S2 = S1.

mandatory validation

submit_rule(S) :-
  gerrit:default_submit(X), % get the current submit structure
  X=.. [submit | Ls],
  require_ticket_check_for_ticket(Ls, Nls),
  S=.. [submit | Nls].

require_ticket_check_for_ticket(S1, S2) :-
   gerrit:commit_message_matches('\\[issue-[\\d]{2}\\][\\s\\S]+'),
   !,
   S2 = [label('Ticket-Checked', ok(user(790))) | S1]. % Add the label and automatically approval by user-id: 790

require_ticket_check_for_ticket(S1, [label('Ticket-Checked', need(_)) | S1]).

api

reference:
Gerrit Code Review - REST API Developers' Notes
Gerrit Code Review - REST API

basic usage

regular options

                                  a might means [a]pi
                                    ⇡
$ curl -X PUT    http://domain.name/a/path/to/api/
$ curl -X POST   http://domain.name/a/path/to/api/
$ curl -X DELETE http://domain.name/a/path/to/api/

sending data

json with file

$ curl -X PUT \
       -d@testdata.json \
       --header "Content-Type: application/json" \
       http://domain.name/a/path/to/api/

json with string

$ curl -X POST \
       -H "Content-Type: application/json" https://domain.name/a/changes/<number>/move \
       -d '{ "destination_branch" : "target/branch/name" }'
)]}'
{
  "id": "marslo-project~target%2Fbranch%2Fname~Id90057ab632eb93be2fa9128a9d624664008cb4a",
  "project": "marslo-project",
  "branch": "target/branch/name",
  "hashtags": [],
  "change_id": "Id90057ab632eb93be2fa9128a9d624664008cb4a",
  "subject": "marslo: testing api move",
  "status": "NEW",
  "created": "2022-01-21 05:21:25.000000000",
  "updated": "2022-05-17 06:56:37.000000000",
  "submit_type": "FAST_FORWARD_ONLY",
  "mergeable": false,
  "insertions": 8,
  "deletions": 8,
  "unresolved_comment_count": 0,
  "has_review_started": true,
  "_number": 94490,
  "owner": {
    "_account_id": 790
  },
  "requirements": []
}

# or
$ curl -X POST \
       -H "Content-Type: application/json" https://domain.name/a/changes/<number>/move \
       -d '{
            "destination_branch" : "target/branch/name"
       }' |
  tail -n +2 |
  jq -r .branch

txt

$ curl -X PUT \
       --data-binary @testdata.txt \
       --header "Content-Type: text/plain" \
       http://domain.name/a/path/to/api/

verifying header content

$ curl -v -n -X DELETE http://domain.name/a/path/to/api/

change

get change via change-id

$ curl -X GET 'https://domina.name/a/changes/<change-id>'

get change via commit-id

$ changeid=$(git show <commit-id> --no-patch --format="%s%n%n%b" | sed -nre 's!Change-Id: (.*$)!\1!p')
$ curl -X GET "https://domina.name/a/changes/${changeid}"

$ project=$(echo 'path/to/project' | sed 's:/:%2F:g')
$ branch='dev'
$ changeid=$(git show <commit-id> --no-patch --format="%s%n%n%b" | sed -nre 's!Change-Id: (.*$)!\1!p')
$ curl -X GET "https://domina.name/a/changes/${project}~${branch}~${changeid}"

who approval the CR+2

$ curl -s -X GET https://domain.name/a/changes/${changeid}/detail |
       tail -n +2 |
       jq -r '.labels."Code-Review".approved.name'

get all vote CR-2

example output for .labels.<tag>.all[]

{
  "value": -2,
  "date": "2021-05-31 07:57:14.000000000",
  "permitted_voting_range": {
    "min": -2,
    "max": 2
  },
  "_account_id": 790,
  "name": "Marslo Jiao",
  "email": "marslo.jiao@gmail.com",
  "username": "marslo"
}
{
  "value": 0,
  "permitted_voting_range": {
    "min": -2,
    "max": 2
  },
  "_account_id": 124,
  "name": "John Doe",
  "email": "john@gmail.com",
  "username": "john"
}

reference:
Select objects based on value of variable in object using jq
jq select or statement
How to select items in JQ based on value in array

$ curl -s -X GET https://domain.name/a/changes/${changeid}/detail |
       tail -n +2 |
       jq -r '.labels."Code-Review".all[] | select ( .value == -2 ) | .username'
#                                         : |⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂⠂| :
#                                         :           ⇣             :
#                                         :  select ".value"== -2   :
#                                         :                         :
#                                         ⇣                         ⇣
#                                        pipe                     pipe

# or
$ curl -s -X GET https://domain.name/a/changes/${changeid}/detail |
       tail -n +2 |
      jq -r '( .labels."Code-Review".all[] | select ( .value == -2 ) ).username'
             :                                                       :
             ⇣                                                       ⇣
         expression                                              expression

# or
$ curl -s -X GET https://domain.name/a/changes/${changeid}/detail |
       tail -n +2 |
      jq -r '[ .labels."Code-Review".all[] | select ( .value == -2 ) ][].username'
             :                                                       :
             ⇣                                                       ⇣
         expression                                              expression

# or
$ curl -s -X GET https://domain.name/a/changes/${changeid}/detail |
       tail -n +2 |
      jq -r '.labels."Code-Review".all[] | select ( .value == -2 )' |
      jq -r .username                                               :
                                                                    ⇣
                                                                   pipe

who approval the V+1

$ curl -s -X GET https://domain.name/a/changes/${changeid}/detail |
       tail -n +2 |
       jq -r .labels.Verified.approved.username

access list contains account

[!NOTE]
list projects
List Access Rights for Project

# i.e. : check all repos who contains account marslo@sample.com
$ while read -r _proj; do
    output=$( curl -fsSL https://gerrit.sample.com/a/projects/"${_proj}"/access |
              tail -n+2 |
              jq -r '.. | .rules? | select(. != null) | keys[] | ascii_downcase | select(contains("marslo@sample.com"))';
            )
    [[ -z "${output}" ]] || echo ">> https://gerrit.sample.com/admin/repos/$(sed 's:%2F:/:g' <<< "${_proj}")"
  done < <( curl -fsSL https://gerrit.sample.com/a/projects/?d |
                  tail -n+2 |
                  jq -r '.[].id' |
                  grep --color=never -E 'keyword|keyword'
          )

all reviews at a certain time

[!NOTE|label:references:]
How to change the limit numbers of gerrit query
Gerrit Code Review - Searching Changes

project='PROJECT'
branch='BRANCH'
start='2023-01-01'
end='2024-01-01'
curlOpt='--silent --insecure --globoff --netrc-file ~/.netrc'
query="project:${project}+branch:${branch}+after:${start}+before:${end}"
filter by status if necessary
query="${query}+is:closed+-is:abandoned"

echo ">> ${project} ~ ${branch}"
while IFS='|' read -r _change_id _id; do
  echo -e "\t- [${_id}] [_change_id]"
$( eval "curl ${curlOpt} 'https://gerrit.sample.com/a/changes/?q=${query}'" |
         tail -n +2 |
         jq -r '.[] | .change_id + "|" + .id'
 )

get review rate in certain time

sum=0
rnum=0
onum=0
echo ">> ${project} ~ ${branch}"
while IFS='|' read -r _change_id _id; do
  sum=$(( sum+1 ))
  output=$( eval "curl ${curlOpt} 'https://gerrit.sample.com/a/changes/${_id}/detail' | tail -n+2" )
  reviewed=$( jq -r '.labels."Code-Review".all[] | select(.value != null) | select( .value | contains(2) ) | .username' <<< "${output}" )
  owned=$( jq -r '.owner.username' <<< "${output}" )
  if grep 'marslo' <<< "${reviewed}" >/dev/null; then rnum=$(( rnum+1 )); fi
  if grep 'marslo' <<< "${owned}"    >/dev/null; then onum=$(( onum+1 )); fi
$( eval "curl ${curlOpt} 'https://gerrit.sample.com/a/changes/?q=${query}'" |
         tail -n +2 |
         jq -r '.[] | .change_id + "|" + .id'
 )
echo "${sum} ${rnum} ${onum} $(( sum-onum ))" |
      awk '{ sum=$1; reviewed=$2; owned=$3; rsum=$4; rate=$2*100/$4 } END { printf("\t- gerrit review: %s/(%s-%s) ( %s% )\n", reviewed, sum, owned, rate) }'

list gerrit projects with certain account

$ account='marslo'
$ id=1
$ gerritUrl='https://gerrit.sample.com'

$ while read -r _proj; do
    output=$( curl -fsSL "${gerritUrl}"/a/projects/"${_proj}"/access |
              tail -n+2 |
              jq -r --arg ACCOUNT "${account}" '.. | ."rules"? | select(. != null) | keys[] | ascii_downcase | select(contains($ACCOUNT))';
            )
    [[ -n "${output}" ]] && echo "[${id}] >> "${gerritUrl}"/admin/repos/$(sed 's:%2F:/:g' <<< "${_proj}")" && ((id++));
  done < <( curl -fsSL "${gerritUrl}"/a/projects/?d | tail -n+2 | jq -r '.[].id' )

reference

integrate in Jenkins

[!NOTE|label:references:]
Gerrit Trigger
How does the Gerrit- trigger plugin in Jenkins works?

stream-events

# permission requires
$ ssh -i id_rsa jenkins@gerrit.domain.com -p 29418 gerrit stream-events
stream events not permitted

# verify
$ ssh -i id_rsa jenkins@gerrit.domain.com -p 29418 gerrit stream-events | jq -r .type
ref-updated
comment-added

build current patches only
[!NOTE] Warning: The current implementation takes into account that 'Build Current Patches Only' with 'Abort new patch sets' and 'Abort patch sets with same topic' are enabled (see help for more).

generate ssh-key

$ keyname='devops@jenkins'
$ ssh-keygen -m PEM -t rsa -f ~/.ssh/${keyname} -C "${keyname}" -P '' -q

css for code block

.gr-formatted-text-0 gr-linked-text.pre.gr-formatted-text,
gr-linked-text[class*="pre"], gr-linked-text[class*="pre"] #output {
  font-family: "Comic Mono", "Monaco", "Menlo", "Andale Mono", "Ubuntu Mono", "monofur" !important;
  font-size: 16px !important;
}
.gr-formatted-text-0 gr-linked-text.pre.gr-formatted-text,
gr-linked-text[class*="pre"] {
  color: #c8c8c8 !important;
  background: #272727 !important;
  border-radius: .75em !important;
  box-shadow: 0 4px 8px 0 rgb(0 0 0 / 20%), 0 6px 20px 0 rgb(0 0 0 / 19%);
  overflow: auto;
  display: block;
  padding: 12px 12px 1px 12px;
  margin: 0px;
}

gruvbox
- background : #272727
- front-color: #e8dbb6
ubunut
- background : #3a122e
- front-color: #eee
solarized
- background : #0d2a34
- front-color: #869395