Merge pull request #16 from gounthar/updatecli

feat(dependencies): Tracks Jenkins LTS versions.

dockerfiles/plugins.txt

@@ -10,7 +10,7 @@ checks-api:2.0.2
 cloudbees-folder:6.858.v898218f3609d
 commons-lang3-api:3.13.0-62.v7d18e55f51e2
 commons-text-api:1.11.0-94.v3e1f4a_926e49
-configuration-as-code:1738.v2d8b_a_b_8a_54b_1
+configuration-as-code:1746.vf1673cfe690a
 credentials-binding:642.v737c34dea_6c2
 credentials:1309.v8835d63eb_d8a_
 display-url-api:2.200.vb_9327d658781
@@ -19,7 +19,7 @@ echarts-api:5.4.0-7
 font-awesome-api:6.4.2-1
 git-client:4.5.0
 git:5.2.1
-github-api:1.316-451.v15738eef3414
+github-api:1.318-461.v7a_c09c9fa_d63
 github-branch-source:1751.v90e17c48a_6a_c
 github:1.37.3.1
 gradle:2.9

updatecli/scripts/jenkins-lts.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# This script fetches the Jenkins release data, extracts the LTS version numbers, sorts them, and then outputs a specific version based on a "backward" argument.
+
+# -e  causes the script to exit immediately if any command fails.
+# -u  treats unset variables as an error and exits the script.
+set -eu -o pipefail
+
+# Get the "backward" argument, default to 0 if not provided.
+# This argument specifies which version to get, starting from 0 for the latest version.
+backward=${1:-0}
+
+# Subtract 1 from backward to start from 0.
+backward=$((backward + 1))
+
+# Uses the wget command to download the RSS feed of the Jenkins changelog and outputs it to the standard output (-O -).
+wget -q -O - https://www.jenkins.io/changelog-stable/rss.xml | \
+# Uses awk to extract the LTS (Long-Term Support) version numbers from the downloaded RSS feed.
+# It searches for lines containing <title>Jenkins, splits the third field based on spaces, and prints the second element of the resulting array.
+awk -F'[<>]' '/<title>Jenkins /{split($3,a," "); print a[2]}' | \
+# Sorts the version numbers in ascending order.
+# It uses the sort command with the delimiter set to dot (-t.) and sorts numerically (-n) based on the first, second, and third fields (-k1,1n -k2,2n -k3,3n).
+sort -t. -k1,1n -k2,2n -k3,3n | \
+# Uses awk to get the last version of each unique base version.
+# It creates an associative array x with the first and second fields as the key and the whole version number as the value.
+# In the END block, it iterates over the array and prints the values.
+awk -F. '{x[$1"."$2]=$0} END {for (i in x) print x[i]}' | \
+# Sorts the versions again in ascending order.
+sort -t. -k1,1n -k2,2n -k3,3n | \
+# Uses the tail command to get the "backward" version.
+# It gets the last n lines, where n is the "backward" argument.
+# Then it uses the head command to get the first line of the result, which is the desired version.
+tail -n $backward | head -n 1

updatecli/updatecli.d/jenkins-lts.yaml

@@ -0,0 +1,47 @@
+---
+name: Bump Jenkins' LTS version in the controller Dockerfile
+
+scms:
+  default:
+    kind: github
+    spec:
+      user: "{{ .github.user }}"
+      email: "{{ .github.email }}"
+      owner: "{{ .github.owner }}"
+      repository: "{{ .github.repository }}"
+      token: "{{ requiredEnv .github.token }}"
+      username: "{{ .github.username }}"
+      branch: "{{ .github.branch }}"
+
+sources:
+  JenkinsLatestLTS:
+    name: Get the latest Jenkins LTS version
+    kind: shell
+    spec:
+      command: bash ./updatecli/scripts/jenkins-lts.sh 0 # source input value passed as argument
+
+conditions:
+  # Test that the latest LTS Jenkins version exists
+  jenkinsLatestLTSVersion:
+    kind: jenkins
+    sourceid: JenkinsLatestLTS
+
+targets:
+  setJenkinsLatestLTS:
+    kind: dockerfile
+    spec:
+      file: dockerfiles/Dockerfile
+      instruction:
+        keyword: "ARG"
+        matcher: "JENKINS_VERSION"
+    sourceid: JenkinsLatestLTS
+
+actions:
+  default:
+    kind: github/pullrequest
+    scmid: default
+    title: Update Jenkins LTS versions to {{ source "JenkinsLatestLTS" }} in the controller Dockerfile
+    spec:
+      labels:
+        - dependencies
+        - chore