Autoupdate

Auto Update is a tool for package maintainers. It automatically checks for new versions of an app and updates the manifest accordingly. It helps to eliminate much of the tedium of updating manifests, as well as reducing the risk of human error while doing so.

Here you will find an in-depth explanation of how the autoupdate part of an app manifest works.

Using checkver.ps1 to query and autoupdate

Use checkver.ps1 to query the current version of either a specific app or all apps of a bucket. If an updated version existed, you can autoupdate manifest by checkver.ps1 too.

Querying current version

Open a PowerShell/CMD console, then cd into Scoop's root directory (apps\scoop\current) or the buckets repository directory and run the following commands:

  • To query the current version of a specific app in the bucket, run:

    .\bin\checkver.ps1 <app>
    # or .\bin\checkver.ps1 -App <app>
    
  • To query the current version of all apps in the bucket, run:

    .\bin\checkver.ps1 *
    # or .\bin\checkver.ps1 -App *
    

Updating manifest

In the output of checkver.ps1, you can see if an outdated app has autoupdate available. If so, you can run the following command to automatically update the respective app's manifest (use * to update all apps)

.\bin\checkver.ps1 <app> -u
# or .\bin\checkver.ps1 -App <app> -Update

To query apps that not in bucket directory (e.g. ., .\TODO, etc.), specify the directory as the second argument to checkver.ps1

.\bin\checkver.ps1 <app> <dir> -u
# or .\bin\checkver.ps1 -App <app> -Dir <dir> -Update

It is recommended to verify that the updated manifest still works by installing the app with the following command

scoop install bucket\<app>.json

Parameters of checkver.ps1

  • -App (-a APP)
    • Manifest name to search.
    • Placeholders (*) are supported.
  • -Dir (-d DIR)
    • Where to search for manifest(s).
  • -Update (-u)
    • Update given manifest.
  • -ForceUpdate (-f)
    • Check manifest(s) and update, even if there is no new version.
  • -SkipUpdated (-s)
    • Check given manifest(s), and list only outdated manifest(s).
  • -Version (-v VER)
    • Check given manifest(s) using a given version VER.
    • Usually used with -u to update to a certain version.

Adding checkver to a manifest

Using RegEx in checkver

Simplest solution is to use an RegEx and it will match it to the source of homepage. Example: go

{
  "homepage": "<https://golang.org>",
  "checkver": "Build version go([\\d\\.]+)\\."
}

If you're not familiar with RegEx or want to test if your RegEx matches on the right text you can use an online tool (RegEx101 or RegExr).

Use another url if the homepage doesn't contain the version. Example: 7zip

{
  "homepage": "https://www.7-zip.org/",
  "checkver": {
    "url": "https://www.7-zip.org/download.html",
    "regex": "Download 7-Zip ([\\d.]+)"
  }
}

Using JSONPath in checkver

Use a JSON endpoint with JSONPath expressions to retrieve the version. Either dot-notation or bracket-notation can be used. Example: mro

{
  "checkver": {
    "url": "https://mran.microsoft.com/assets/configurations/app.config.json",
    "jp": "$.latestMicrosoftRVersion"
  }
}

If you're not familiar with JSONPath or want to test if your JSONPath matches on the right text you can use an online tool (JSONPath Expression Tester).

There could be a JSONPath query in checkver.jsonpath, and so does RegEx (sample reference). Example: nuget

{
  "checkver": {
    "url": "https://dist.nuget.org/index.json",
    "jp": "$..versions[?(@.displayName == 'nuget.exe - recommended latest')].version"
  }
}

Using RegEx with JSONPath in checkver

If checkver.regex and checkver.jsonpath are all assigned, scoop use checkver.jsonpath to extract a string which checkver.regex is matched to to find the version. Example: nwjs

{
  "checkver": {
    "url": "https://nwjs.io/versions.json",
    "jsonpath": "$.stable",
    "regex": "v([\\d.]+)"
  }
}

Special Cases

Use the latest app release on Github by setting checkver to github and the homepage to the repository URL. This will try to match the tag with \/releases\/tag\/(?:v|V)?([\d.]+). The app author has to use Github's release feature for this to work. Pre-releases will be ignored! Example: nvm

{
  "homepage": "https://github.com/coreybutler/nvm-windows",
  "checkver": "github"
}

Or use different urls for the homepage and repository. Example: cmder

{
  "homepage": "http://cmder.net",
  "checkver": {
    "github": "https://github.com/cmderdev/cmder"
  }
}

Use checkver.reverse: true to let checkver.regex match the last occurrence found (default is to match the first occurrence). Example: x264

{
  "checkver": {
    "url": "https://download.videolan.org/pub/videolan/x264/binaries/win64/",
    "re": "x264-r(?<version>[\\d]+)-(?<commit>[a-fA-F0-9]{7}).exe",
    "reverse": true
  }
}

Use capture groups in checkver.regex will make captured variables that could be used in checkver.replace for complex versions or in autoupdate property.

This example will provide $matchVersion and $matchShort as variables (used in autoupdate). Example: git

{
  "checkver": {
    "url": "https://github.com/git-for-windows/git/releases/latest",
    "re": "v(?<version>[\\d\\w.]+)/PortableGit-(?<short>[\\d.]+).*\\.exe"
  }
}

This exmple will provide ${1}, ${2}, ${3} (used in checkver.replace) and $matchSha (used in autoupdate) as variables. Example: pshazz

{
  "checkver": {
    "url": "https://github.com/lukesampson/pshazz/commits/master.atom",
    "re": "(\\d+)-(\\d+)-(\\d+)[\\S\\s]*?(?<sha>[0-9a-f]{40})",
    "replace": "0.${1}.${2}.${3}"
  }
}

Properties of checkver

  • checkver: "regex". RegEx for finding the version on the homepage
    • github: "uri". URL to the app's Github repository
    • url: "uri". Page where the version can be found
    • regex|re: "regex". RegEx for finding the version
    • jsonpath|jp: "jsonpath". JSONPath expression for finding the version
    • xpath: "string". XPath expression for finding the version
    • reverse: "boolean". If or not match the last occurrence found
    • replace: "string". Replace the matched value with a calculated value
    • useragent: "string". User-Agent that used to get webpage content (only used in fiddler)

Adding autoupdate to a manifest

For the autoupdate feature to work it needs a checkver property to find the latest version number.

{
  "autoupdate": {
    "note": "Thanks for using autoupdate, please test your updates!",
    "architecture": {
      "64bit": {
        "url": "https://example.org/dl/example-v$version-x64.msi"
      },
      "32bit": {
        "url": "https://example.org/dl/example-v$version-x86.msi"
      }
    }
  }
}

Some example manifests using the autoupdate feature:

{
  "autoupdate": {
    "architecture": {
      "64bit": {
        "url": "https://nodejs.org/dist/v$version/node-v$version-win-x64.7z",
        "extract_dir": "node-v$version-win-x64"
      },
      "32bit": {
        "url": "https://nodejs.org/dist/v$version/node-v$version-win-x86.7z",
        "extract_dir": "node-v$version-win-x86"
      }
    },
    "hash": {
      "url": "$baseurl/SHASUMS256.txt.asc"
    }
  }
}
{
  "autoupdate": {
    "architecture": {
      "64bit": {
        "url": "https://windows.php.net/downloads/releases/php-$version-Win32-VC15-x64.zip"
      },
      "32bit": {
        "url": "https://windows.php.net/downloads/releases/php-$version-Win32-VC15-x86.zip"
      }
    },
    "hash": {
      "url": "$baseurl/sha256sum.txt"
    }
  }
}
{
  "autoupdate": {
    "url": "https://nginx.org/download/nginx-$version.zip",
    "extract_dir": "nginx-$version"
  }
}
{
  "autoupdate": {
    "architecture": {
      "64bit": {
        "url": "https://www.imagemagick.org/download/binaries/ImageMagick-$version-portable-Q16-x64.zip"
      },
      "32bit": {
        "url": "https://www.imagemagick.org/download/binaries/ImageMagick-$version-portable-Q16-x86.zip"
      }
    },
    "hash": {
      "mode": "rdf",
      "url": "https://www.imagemagick.org/download/binaries/digest.rdf"
    }
  }
}

Some examples using the autoupdate feature with captured variables or version variables:

{
  "checkver": {
    "re": "/(?<type>early_access|GA)/(?<path>jdk(?<major>[\\d.]+)(?:.*)?/(?<build>[\\d]+)(?:/GPL|/binaries)?)/(?<file>openjdk-(?<version>[\\d.]+)(?<ea>-ea)?(?:\\+[\\d]+)?_windows-x64_bin.(zip|tar.gz))",
    "replace": "${version}-${build}${ea}"
  },
  "autoupdate": {
    "architecture": {
      "64bit": {
        "url": "https://download.java.net/java/$matchType/$matchPath/$matchFile"
      }
    },
    "hash": {
      "url": "$url.sha256"
    },
    "extract_dir": "jdk-$matchVersion"
  }
}
{
  "autoupdate": {
    "architecture": {
      "64bit": {
        "url": "https://dev.mysql.com/get/Downloads/MySQL-$majorVersion.$minorVersion/mysql-$version-winx64.zip",
        "extract_dir": "mysql-$version-winx64",
        "hash": {
          "url": "https://dev.mysql.com/downloads/mysql/",
          "find": "md5\">([A-Fa-f\\d]{32})"
        }
      }
    }
  }
}

Properties of autoupdate

All the properties except autoupdate.note can be set globally for all architectures or for each architecture separately (under architecture.64bit or architecture.32bit). Global properties can be used to update each architectural properties, i.e., if only setted globally, autoupdate.url is used to update either architecture.64bit.url or architecture.32bit.url.

  • url: "uri". An URL template for generating the new url
    • scoop will rename files by appending #/dl.7z or #/pngcrush.exe to the URL (useful for extracting installers or renaming executables version string)
    • Supports captured variables
    • Supports version variables
  • hash: "object". Set this property for obtaining hash values without download the actual files
  • extract_dir: "string". Option to update extract_dir
  • note: "string". Optional message to be displayed when the autoupdate command is run

Adding hash to autoupdate

There are several ways to obtain the hash of the new file. If the app provider publishes hash values it is possible to extract these from their website or hashfile. If nothing is defined or something goes wrong while getting the hash values the target files will be downloaded and hashed locally.

Hash value can be directly extracted by the following method (autoupdate.hash.mode):

  • Using RegEx for plain text file or webpage (extract, predefined fosshub, sourceforge)
  • Using JSONPath for JSON file (json)
  • Using XPath for XML file (xpath)
  • Using Digest for RDF file (rdf)
  • Using download header or .meta4 for Metalink (metalink)

Specifying URL in hash.url

url in hash property accepts URL with captured variables, version variables or URL variables.

{
  "checkver": {
    "re": "<strong>(?<year>\\d{4})-(?<month>\\d{2})-(?<day>\\d{2})</strong>: New QEMU installers \\((?<version>[\\d.a-z\\-]+)\\)"
  },
  "autoupdate": {
    "architecture": {
      "64bit": {
        "url": "https://qemu.weilnetz.de/w64/qemu-w64-setup-$matchYear$matchMonth$matchDay.exe#/dl.7z",
        "hash": {
          "url": "https://qemu.weilnetz.de/w64/qemu-w64-setup-$matchYear$matchMonth$matchDay.sha512"
        }
      },
      "32bit": {
        "url": "https://qemu.weilnetz.de/w32/qemu-w32-setup-$matchYear$matchMonth$matchDay.exe#/dl.7z",
        "hash": {
          "url": "https://qemu.weilnetz.de/w32/qemu-w32-setup-$matchYear$matchMonth$matchDay.sha512"
        }
      }
    }
  }
}
{
  "hash": {
    "url": "https://julialang-s3.julialang.org/bin/checksums/julia-$version.sha256"
  }
}
{
  "hash": {
    "url": "$url_fossies.sha256"
  }
}

Getting hash from plain text file or webpage

If the app provider publishes hash value in a plain text file or on some webpage, checkver.ps1 could extract it by using proper RegEx.

Using Built-in RegEx in autoupdate.hash

There are some default RegEx that built in scoop, i.e., ^([a-fA-F0-9]+)$ and ([a-fA-F0-9]{32,128})[\x20\t]+.*$basename(?:[\x20\t]+\d+)?.

# ^([a-fA-F0-9]+)$
abcdef0123456789abcdef0123456789abcdef01
# ([a-fA-F0-9]{32,128})[\x20\t]+.*`$basename(?:[\x20\t]+\d+)?
abcdef0123456789abcdef0123456789abcdef01 *example.zip

See above for examples.

Using customized RegEx in autoupdate.hash

If built-in RegEx is not suitable, customized RegEx could be used to extract hash value. Hash variables ($md5, $sha1, $sha256, and etc.) could be used to simplify the expression.

{
  "hash": {
    "url": "$baseurl/hashes.txt",
    "find": "SHA256\\($basename\\)=\\s+([a-fA-F\\d]{64})"
  }
}
{
  "hash": {
    "url": "https://www.python.org/downloads/release/python-$cleanVersion/",
    "find": "$basename[\\S\\s]+?$md5"
  }
}

Special cases for FossHub and SourceForge

There are two predefined special cases: FossHub and SourceForge.

  • FossHub
    • URL pattern: ^(?:.*fosshub.com\/).*(?:\/|\?dwl=)(?<filename>.*)$
      • https://www.fosshub.com/Calibre.html?dwl=calibre-64bit-3.44.0.msi
      • https://www.fosshub.com/Calibre.html/calibre-64bit-3.44.0.msi
    • RegEx: $basename.*?"sha256":"([a-fA-F0-9]{64})"
  • SourceForge
    • URL pattern: (?:downloads\.)?sourceforge.net\/projects?\/(?<project>[^\/]+)\/(?:files\/)?(?<file>.*)
      • https://downloads.sourceforge.net/project/nsis/NSIS%203/3.04/nsis-3.04.zip
      • https://sourceforge.net/projects/nsis/files/NSIS%203/3.04/nsis-3.04.zip
    • RegEx: "$basename":.*?"sha1":\s"([a-fA-F0-9]{40})"

For autoupdate.urls that match above patterns, hash mode is setted to fosshub or sourceforge automatically and hash property is not needed.

{
  "autoupdate": {
    "url": "https://www.fosshub.com/Calibre.html/calibre-portable-installer-$version.exe"
  }
}
{
  "autoupdate": {
    "url": "https://downloads.sourceforge.net/project/nsis/NSIS%20$majorVersion/$version/nsis-$version.zip",
    "extract_dir": "nsis-$version"
  }
}

Getting hash from JSON file

For JSON file, use a JSON endpoint with JSONPath expressions to retrieve the hash. Either dot-notation or bracket-notation can be used. Example: openssl

{
  "hash": {
    "mode": "json",
    "jp": "$.files.['$basename'].sha512",
    "url": "$baseurl/win32_openssl_hashes.json"
  }
}

There could be a JSONPath query in autoupdate.hash.jsonpath, and so does RegEx (sample reference). Example: mro

{
  "hash": {
    "mode": "json",
    "jsonpath": "$..versions[?(@.downloadText == '$basename')].sha256",
    "url": "https://mranapi.azurewebsites.net/api/download"
  }
}

Getting hash from XML file

Use XPath to retrieve the hash from a XML file. Example: googlechrome

{
  "hash": {
    "url": "https://lab.skk.moe/chrome/api/chrome.min.xml",
    "xpath": "/chromechecker/stable64[version=\"$version\"]/sha256"
  }
}

Getting hash from RDF file

Resource Description Framework (RDF) is a framework for representing information in the Web. Hash value could be extracted from RDF file. Example: imagemagick

{
  "hash": {
    "mode": "rdf",
    "url": "https://www.imagemagick.org/download/binaries/digest.rdf"
  }
}

Metalink is an Internet standard that harnesses the speed and power of peer to peer networking and traditional downloads with a single click. For download URL that supported Metalink, hash value could be retrieved from download URL's header or a .meta4 file. Example: libreoffice-fresh

{
  "hash": {
    "mode": "metalink"
  }
}

Properties of autoupdate.hash

All the properties can be set globally for all architectures or for each architecture separately

  • mode: "String | Enum".
    • extract: Extract from a plain text file or webpage by RegEx (Default, can be omitted)
    • json: Extract from a JSON file by JSONPath
    • xpath: Extract from a XML file by XPath
    • rdf: Extract from a RDF file
    • metalink: Extract from Metalink's header or .meta4 file
    • fosshub: Automatic. Predefined for FossHub
    • sourceforge: Automatic. Predefined for SourceForge
    • download: Downloads the app file and hash it locally (Fallback)
  • url: "Uri". URL template for downloading RDF/JSON files or extracting hashes
  • regex|find: "Regex". RegEx expression to extract the hash
  • jsonpath|jp: "JSONPath". JSONPath expression to extract the hash
  • xpath: "String". XPath expression to extract the hash
  • type: "String | Enum". Deprecated. Hash type is determined automatically

Internal substitutable variables

Captured variables

  • Used in checkver.replace
    • ${1}, ${2}, ${3}...: Unnamed groups
    • ${name1}, ${Name2}, ${NAME3}...: Named groups
      • (?<name1>...), (?<Name2>...), (?<NAME3>...)...
  • Used in autoupdate
    • $match1, $match2, $match3...: Unnamed groups
    • $matchName1, $matchName2, $matchName3...: Named groups
      • (?<name1>...), (?<Name2>...), (?<NAME3>...)...
      • Notice the only uppercase character in variable name

Version variables

  • $version: 3.7.1
  • $underscoreVersion: 3_7_1
  • $dashVersion: 3-7-1
  • $cleanVersion: 371
  • The $version (e.g. 3.7.1.2) is splitted on each . and is assigned to:
    • $majorVersion: 3
    • $minorVersion: 7
    • $patchVersion: 1
    • $buildVersion: 2
  • $matchHead: Returns first two or three digits seperated by a dot (e.g. 3.7.1-rc.1 = 3.7.1 , 3.7.1.2-rc.1 = 3.7.1 or 3.7-rc.1 = 3.7)
  • $matchTail: Returns the rest of $matchHead (e.g. 3.7.1-rc.1 = -rc.1 , 3.7.1.2-rc.1 = .2-rc.1 or 3.7-rc.1 = -rc.1)
  • $preReleaseVersion: Everything after the last - (e.g. 3.7.1-rc.1 would result in rc.1)
  • Each capturing group in the checkver property adds a $matchX variable (named groups are allowed). Matching v3.7.1/3.7 with v(?<version>[\d.]+)\/(?<short>[\d.]+) would result in:
    • $match1 or $matchVersion: 3.7.1
    • $match2 or $matchShort: 3.7

URL variables

  • $url: autoupdate URL without fragments (#/dl.7z) [e.g. http://example.com/path/file.exe]
  • $baseurl: autoupdate URL without filename and fragments (#/dl.7z) [e.g. http://example.com/path]
  • $basename: filename from autoupdate URL (ignores fragments #/dl.7z)

Hash variables

  • $md5: ([a-fA-F0-9]{32}) MD5 hash type
  • $sha1: ([a-fA-F0-9]{40}) SHA-1 hash type
  • $sha256: ([a-fA-F0-9]{64}) SHA-256 hash type
  • $sha512: ([a-fA-F0-9]{128}) SHA-512 hash type
  • $checksum: ([a-fA-F0-9]{32,128}) MD5, SHA-1, SHA-256 or SHA-512 hash type
  • $base64: ([a-zA-Z0-9+\/=]{24,88}) BASE64 encoded checksum (can be MD5, SHA-1, SHA-256 or SHA-512)

Limitations

There are some complex manifests which reach the limits of the current autoupdate implementation, mainly because autoupdate only update url, hash and extract_dir. (The list of affected manifests is incomplete)

  • The binaries specified in the bin or shortcuts change with the version number. Example: gimp
  • There are multiple urls needed to be updated. Example: coreutils

Testing and running autoupdate

If you want to confirm an autoupdate works, e.g. after adding it to an existing manifest or creating a new one, change the version field to a lower or different version and then run checkver.ps1 or use the -f parameter.

cd <bucket repository>
scoop config debug $true
.\bin\checkver.ps1 <app> -u

Check if the url, hash and extract_dir properties have the correct values. Try to install/uninstall the app and submit your changes.

Manifests in some known buckets are autoupdated by ScoopInstaller/Excavator, so if you want some apps being autoupdated, migrate them to one of these buckets or run an instance of the excavator yourself.

Example Workflow with scoop status/update

scoop status compares your installed version against the current copy of scoop and bucket repositories on your machine. If these are not updated it will output wrong version information. e.g.:

  • installed version: 2.1.2
  • local scoop version: 2.1.3
  • online repo version: 2.1.4

scoop status will show version 2.1.3

Running scoop update before scoop status is recommended (which is enforced every 3 hours), then it will show currect version 2.1.4.

scoop update just git pulls scoop core repo to ~\scoop\apps\scoop\current and every configured bucket to ~\scoop\buckets\<name> (incl. default main bucket)

bin\checkver.ps1 is only for maintenance and updating the manifests so they can be committed to the repo.

Example Workflow:

cd <bucket repository>
.\bin\checkver * -u # updates all manifest in the repo
git commit -m "Updated apps"
git push
scoop update
scoop status
scoop update <app>