PEAR repository type does not process PEAR installer dependency

[glensc]

do you consider this problem reported here something you fix,
or i just workaround and load "PEAR" in root composer.json?

eventum/eventum#256 (comment)

My composer.json:

{
        "repositories": [
                {
                        "type": "pear",
                        "url": "https://pear.php.net",
                        "vendor-alias": "pear"
                }
        ],
        "require": {
                "pear-pear.php.net/mail_mimedecode": "*"
        }
}

this does not install any variant of pear package (pear/pear, pear/pear-core-minimal, pear-pear.php.net/pear)

reproducer:
https://gist.github.com/glensc/46fe580cab09efb35b8da3f2fe9f87e3

TL;DR

pear package is fine, just seems composer does not parse this:

   <pearinstaller>
    <min>1.6.0</min>
   </pearinstaller>

as i understand, it's supposed to mean pear/pear >= 1.6.0

[alcohol]

I am not clear on what the "problem" is..?

[glensc]

mail_mimedecode and pear/mail_mime are installed without pear/pear (any variant) being installed. the problem is that "provider": "pear" does not seem to extract such dependency altho it seems to be present in package.xml of pear package.

[alcohol]

I honestly have no clue how the pear dependency stuff works, and your description really does not make things more clear for me I have to say. Sorry, I do not think I can help you with this. Maybe someone else has a better understanding of how pear works :-(

[glensc]

did you read the linked comment? it gives pretty detailed info (imho). i'll post step by step example in few jiffies.

[glensc]

https://gist.github.com/glensc/46fe580cab09efb35b8da3f2fe9f87e3

[alcohol]

All I understood was that some pear package does not work correctly, and as a result, https://github.com/roojs/mail_mimeDecode/ has been created, which should address the issue. I do not understand exactly what is or was wrong with the pear package though.

[alcohol]

From your gist I am not sure how Composer is supposed to infer that there is a dependency on pear-pear.php.net/pear or pear/pear-core-minimal ?

[glensc]

from what i wrote eventum/eventum#256 (comment):

pear package is fine, just seems composer does not parse this:

   <pearinstaller>
    <min>1.6.0</min>
   </pearinstaller>

as i understand, it's supposed to mean pear/pear >= 1.6.0

[glensc]

the gist uses satis generated repo for pear. you did not read the referred comment at all it seems
eventum/eventum#256 (comment)

i'll update gist to use "repositories" "pear" directly. the test will be heavily slower but more isolated.

[alcohol]

I glanced over the comments briefly, yes. My time is limited. They are describing another issue which I have little interest in. I was merely trying to find anything that could hint at what Composer is doing "wrong" here.

pear package is fine, just seems composer does not parse this:

...

That was the summary I was looking for, thanks.

[glensc]

(updated gist)

[alcohol]

Peculiar, the resulting json that is generated and cached for the pear repo provider is as follows:

---

Click to expand/collapse

provider-pear$mail-mime.json

{
   "packages" : {
      "pear/mail_mime" : {
         "dev-gpg-20938" : {
            "include-path" : [
               "./"
            ],
            "keywords" : [],
            "homepage" : "http://pear.php.net/package/Mail_Mime",
            "authors" : [
               {
                  "role" : "Lead",
                  "name" : "Cipriano Groenendal",
                  "email" : "cipri@php.net"
               },
               {
                  "name" : "Aleksander Machniak",
                  "email" : "alec@php.net",
                  "role" : "Lead"
               }
            ],
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "name" : "pear/mail_mime",
            "version_normalized" : "dev-gpg-20938",
            "require" : {
               "pear/pear-core-minimal" : "*"
            },
            "version" : "dev-gpg-20938",
            "uid" : 509376,
            "source" : {
               "type" : "git",
               "reference" : "7e8e7c9f18770231f296fd2a906a9606c3c26509",
               "url" : "https://github.com/pear/Mail_Mime.git"
            },
            "license" : [
               "BSD Style"
            ],
            "dist" : {
               "shasum" : "",
               "reference" : "7e8e7c9f18770231f296fd2a906a9606c3c26509",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/7e8e7c9f18770231f296fd2a906a9606c3c26509",
               "type" : "zip"
            },
            "description" : "Mail_Mime provides classes to create MIME messages",
            "time" : "2015-10-20T19:45:36+00:00",
            "type" : "library"
         },
         "1.8.9" : {
            "name" : "pear/mail_mime",
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "version_normalized" : "1.8.9.0",
            "require" : {
               "pear/pear_exception" : "*"
            },
            "version" : "1.8.9",
            "uid" : 440464,
            "include-path" : [
               "./"
            ],
            "keywords" : [],
            "require-dev" : {
               "phpunit/phpunit" : "*"
            },
            "homepage" : "",
            "authors" : [
               {
                  "role" : "Lead",
                  "name" : "Cipriano Groenendal",
                  "email" : "cipri@php.net"
               },
               {
                  "role" : "Lead",
                  "name" : "Aleksander Machniak",
                  "email" : "alec@php.net"
               }
            ],
            "description" : "More info available on: http://pear.php.net/package/Mail_Mime",
            "time" : "2014-05-14T08:27:27+00:00",
            "type" : "library",
            "source" : {
               "reference" : "407c330caf79ae36090c5ad6ed8b6fc8954d2828",
               "url" : "https://github.com/pear/Mail_Mime.git",
               "type" : "git"
            },
            "license" : [
               "BSD Style"
            ],
            "dist" : {
               "shasum" : "",
               "type" : "zip",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/407c330caf79ae36090c5ad6ed8b6fc8954d2828",
               "reference" : "407c330caf79ae36090c5ad6ed8b6fc8954d2828"
            }
         },
         "1.10.0" : {
            "type" : "library",
            "time" : "2015-09-13T12:42:41+00:00",
            "description" : "Mail_Mime provides classes to create MIME messages",
            "license" : [
               "BSD Style"
            ],
            "dist" : {
               "shasum" : "",
               "reference" : "e071727cf41a4b85ecc1de210ed4fd7f4f8d1ec4",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/e071727cf41a4b85ecc1de210ed4fd7f4f8d1ec4",
               "type" : "zip"
            },
            "source" : {
               "reference" : "e071727cf41a4b85ecc1de210ed4fd7f4f8d1ec4",
               "url" : "https://github.com/pear/Mail_Mime.git",
               "type" : "git"
            },
            "require" : {
               "pear/pear-core-minimal" : "*"
            },
            "version_normalized" : "1.10.0.0",
            "uid" : 525542,
            "version" : "1.10.0",
            "name" : "pear/mail_mime",
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "homepage" : "http://pear.php.net/package/Mail_Mime",
            "authors" : [
               {
                  "name" : "Cipriano Groenendal",
                  "email" : "cipri@php.net",
                  "role" : "Lead"
               },
               {
                  "role" : "Lead",
                  "email" : "alec@php.net",
                  "name" : "Aleksander Machniak"
               }
            ],
            "keywords" : [],
            "include-path" : [
               "./"
            ]
         },
         "1.9.0" : {
            "time" : "2015-08-05T12:54:39+00:00",
            "type" : "library",
            "description" : "Mail_Mime provides classes to create MIME messages",
            "dist" : {
               "shasum" : "",
               "type" : "zip",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/66b2a01acabe0b8d0ce606833d5cefc1a49a8887",
               "reference" : "66b2a01acabe0b8d0ce606833d5cefc1a49a8887"
            },
            "license" : [
               "BSD Style"
            ],
            "source" : {
               "url" : "https://github.com/pear/Mail_Mime.git",
               "reference" : "66b2a01acabe0b8d0ce606833d5cefc1a49a8887",
               "type" : "git"
            },
            "version" : "1.9.0",
            "uid" : 486120,
            "version_normalized" : "1.9.0.0",
            "require" : {
               "pear/pear-core-minimal" : "*"
            },
            "name" : "pear/mail_mime",
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "authors" : [
               {
                  "email" : "cipri@php.net",
                  "name" : "Cipriano Groenendal",
                  "role" : "Lead"
               },
               {
                  "email" : "alec@php.net",
                  "name" : "Aleksander Machniak",
                  "role" : "Lead"
               }
            ],
            "homepage" : "http://pear.php.net/package/Mail_Mime",
            "include-path" : [
               "./"
            ],
            "keywords" : []
         },
         "dev-drop_php4" : {
            "description" : "More info available on: http://pear.php.net/package/Mail_Mime",
            "time" : "2015-06-14T09:44:21+00:00",
            "type" : "library",
            "source" : {
               "type" : "git",
               "url" : "https://github.com/pear/Mail_Mime.git",
               "reference" : "941695f10f41313c2798e402305362a12ec0252f"
            },
            "dist" : {
               "shasum" : "",
               "reference" : "941695f10f41313c2798e402305362a12ec0252f",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/941695f10f41313c2798e402305362a12ec0252f",
               "type" : "zip"
            },
            "license" : [
               "BSD Style"
            ],
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "name" : "pear/mail_mime",
            "version" : "dev-drop_php4",
            "uid" : 148626,
            "version_normalized" : "dev-drop_php4",
            "require" : {
               "pear/pear_exception" : "*"
            },
            "keywords" : [],
            "include-path" : [
               "./"
            ],
            "authors" : [
               {
                  "name" : "Cipriano Groenendal",
                  "email" : "cipri@php.net",
                  "role" : "Lead"
               },
               {
                  "role" : "Lead",
                  "email" : "alec@php.net",
                  "name" : "Aleksander Machniak"
               }
            ],
            "require-dev" : {
               "phpunit/phpunit" : "*"
            },
            "homepage" : ""
         },
         "dev-master" : {
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "name" : "pear/mail_mime",
            "require" : {
               "pear/pear-core-minimal" : "*"
            },
            "version_normalized" : "9999999-dev",
            "uid" : 136978,
            "version" : "dev-master",
            "keywords" : [],
            "include-path" : [
               "./"
            ],
            "homepage" : "http://pear.php.net/package/Mail_Mime",
            "authors" : [
               {
                  "email" : "cipri@php.net",
                  "name" : "Cipriano Groenendal",
                  "role" : "Lead"
               },
               {
                  "role" : "Lead",
                  "email" : "alec@php.net",
                  "name" : "Aleksander Machniak"
               }
            ],
            "description" : "Mail_Mime provides classes to create MIME messages",
            "type" : "library",
            "time" : "2016-07-14T17:53:27+00:00",
            "source" : {
               "type" : "git",
               "reference" : "179235d12ac1be4b7b62b5bcba5ca09334c5f529",
               "url" : "https://github.com/pear/Mail_Mime.git"
            },
            "license" : [
               "BSD-3-clause"
            ],
            "dist" : {
               "shasum" : "",
               "type" : "zip",
               "reference" : "179235d12ac1be4b7b62b5bcba5ca09334c5f529",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/179235d12ac1be4b7b62b5bcba5ca09334c5f529"
            }
         },
         "dev-travis7" : {
            "source" : {
               "type" : "git",
               "url" : "https://github.com/pear/Mail_Mime.git",
               "reference" : "94686c92483fb00289c2d1fa2ced6d47ff5d62ec"
            },
            "dist" : {
               "shasum" : "",
               "reference" : "94686c92483fb00289c2d1fa2ced6d47ff5d62ec",
               "url" : "https://api.github.com/repos/pear/Mail_Mime/zipball/94686c92483fb00289c2d1fa2ced6d47ff5d62ec",
               "type" : "zip"
            },
            "license" : [
               "BSD Style"
            ],
            "description" : "Mail_Mime provides classes to create MIME messages",
            "type" : "library",
            "time" : "2015-08-20T20:33:35+00:00",
            "include-path" : [
               "./"
            ],
            "keywords" : [],
            "authors" : [
               {
                  "role" : "Lead",
                  "email" : "cipri@php.net",
                  "name" : "Cipriano Groenendal"
               },
               {
                  "email" : "alec@php.net",
                  "name" : "Aleksander Machniak",
                  "role" : "Lead"
               }
            ],
            "homepage" : "http://pear.php.net/package/Mail_Mime",
            "autoload" : {
               "psr-0" : {
                  "Mail" : "./"
               }
            },
            "name" : "pear/mail_mime",
            "uid" : 509375,
            "version" : "dev-travis7",
            "require" : {
               "pear/pear-core-minimal" : "*"
            },
            "version_normalized" : "dev-travis7"
         }
      }
   }
}

---

This does seem to suggest a dependency on pear-core-minimal:

"require" : {
    "pear/pear-core-minimal" : "*"
}

Why it does not get installed nor show up when running composer show pear-pear.php.net/mail_mime I do not know.

name     : pear-pear.php.net/Mail_Mime
descrip. : Mail_Mime provides classes to deal with the creation and manipulation of MIME messages.
It allows people to create e-mail messages consisting of:
* Text Parts
* HTML Parts

* Inline HTML Images
* Attachments
* Attached messages

It supports big messages, base64 and quoted-printable encodings and
non-ASCII characters in filenames, subjects, recipients, etc. encoded
using RFC2047 and/or RFC2231.
keywords :
versions : * 1.10.0
type     : pear-library
license  : BSD Style
source   : []
dist     : [file] https://pear.php.net/get/Mail_Mime-1.10.0.tgz
names    : pear-pear.php.net/mail_mime, pear-pear/mail_mime, pear/mail_mime

autoload
classmap

include-path
/

requires
php >=5.0.0.0

replaces
pear-pear/mail_mime == 1.10.0.0
pear/mail_mime == 1.10.0.0

[glensc]

pear-pear.php.net/mail_mimedecode is the package missing in packagist.

in gist i've used only pear-pear.php.net/mail_mimedecode
https://gist.github.com/glensc/46fe580cab09efb35b8da3f2fe9f87e3

(updating issue summary)

[alcohol]

It seems that in PackageDependencyParser there is a case statement for os | pearinstaller which is basically a NOOP. This should probably be modified to make pearinstaller create a simple DependencyConstraint on pear-core-minimal (would that always be the right package?).

[glensc]

i would resolve it to "pear" type package, as packages may want real PEAR package, not the minimal version.

thus pear-pear.php.net/mail_mimedecode would get pear-pear.php.net/pear. not sure how much the "vendor-alias": "pear" plays role here.

[glensc]

I'm no longer using these PEAR packages, so it's not important for me to solve this.

closing.