Go / Golang calling go generate ./... after oapi-codegen dependency update yields go not found

[john-behm-bertelsmann]

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GitHub v38 (sha256:75305e13dfb91254974655b9ec13dbd41a16ee06693cec7b444389a4c107566b)

Please tell us more about your question or problem

Hi,
I'm trying to update the oapi-codegen utility which can be found in magic Go comments that look like this:

//go:generate go get ...@v2.0.0
//go:generate go run ...@v2.0.0 --cli-flag value1 --cli-flag2 value2

My probelm is that the go executable is not found when the go generate ./... is called after the dependencies have been updated.
The error message tells me Command failed: go generate ./...\n/bin/sh: 1: go: not found\n.

This is roughly my config file.

module.exports = {
    platform: "github",
    labels: ["dependencies"],
    // using autodiscovery instead of defining each repo explicit see: https://docs.renovatebot.com/self-hosted-configuration/#autodiscoverfilter
    autodiscover: true,

    // list/glob-pattern of repos in alphabetical order
    autodiscoverFilter: [
        "some-org/go-lib-*",
    ],
    // use conventional commit messages
    extends: [
        // use renovate recommended config https://docs.renovatebot.com/presets-config/#configrecommended
        "config:recommended",
        // use conventional commit messages
        ":semanticCommits"
        // https://docs.renovatebot.com/presets-regexManagers/#regexmanagersmavenpropertyversions
        //"regexManagers:mavenPropertyVersions"
    ],
    kubernetes: {
        fileMatch: ["\\.yaml$"]
    },
    // see: https://github.com/renovatebot/renovate/blob/main/lib/modules/manager/flux/readme.md
    flux: {
        fileMatch: ["\\.yaml$"]
    },
    hostRules: [
        // ...
    ],
    customManagers: [
        //define a regex to match go get/run commands in go files (used by go generate)
        {
            customType: "regex",
            datasourceTemplate: "go",
            fileMatch: ".go$",
            matchStrings: ["\\/\\/go:generate\\s+go\\s+\\S{3}\\s+(?<depName>github\\.com\\/.+)@(?<currentValue>\\S+)[^\\n]*\\n"],
        },
    ],
    allowedPostUpgradeCommands: [
        "^go generate \\.\\/\\.\\.\\.$",
    ],
    packageRules: [
        {
            //  generate code for openapi specs
            groupName: "all generator dependencies",
            groupSlug: "all-generators",
            matchPackageNames: [
                // regex must start with / or !/ and end with /
                "/github\\.com\\/deepmap\\/oapi-codegen\\/v.*\\/cmd\\/oapi-codegen/",
                "/github\\.com\\/deepmap\\/oapi-codegen\\/v.*\\/pkg\\/codegen/"
            ],
            matchManagers: ["regex"],
            matchDatasources: ["go"],
            postUpgradeTasks: {
                // call only once for the whole branch, contrary to 'update' which call this for every dependency
                executionMode: "branch",
                commands: [
                    "go generate ./..."
                ]
            },
        }
    ],

    // https://docs.renovatebot.com/self-hosted-configuration/#prcommitsperrunlimit
    // open max 100 PRs and start a maximum of 100 builds per day starting at 18:00
    prCommitsPerRunLimit: 100,
    prConcurrentLimit: 1,

    // https://docs.renovatebot.com/golang/
    // https://docs.renovatebot.com/configuration-options/#postupdateoptions
    // go mod tidy for all updates, major and minor
    // gomodUpdateImportPaths already implicitly does this for major updates
    postUpdateOptions: [
        "gomodTidy",
        "gomodUpdateImportPaths"
    ],

    secrets: {
        GITHUB_TOKEN: process.env.GITHUB_TOKEN,
    },

    customEnvVariables: {
        // set git config variables for go private modules. see: https://docs.renovatebot.com/getting-started/private-packages/#gomod
        GOPRIVATE: "github.com/some-org",
        GONOPROXY: "github.com/some-org",
        GONOSUMDB: "github.com/some-org",
        GIT_CONFIG_COUNT: "1",
        GIT_CONFIG_KEY_0: "url.https://{{ secrets.GITHUB_TOKEN }}@github.com/.insteadOf",
        GIT_CONFIG_VALUE_0: "https://github.com/",
    }
};

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[jamietanna]

Also seen in oapi-codegen/oapi-codegen#2157 (comment) + fixed in oapi-codegen/oapi-codegen#2159

#39455 would be the solution here, so we'll move discussion into there

Also, hello from both an oapi-codegen and Renovate maintainer 👋