How to install software that is already installed?

[dominix]

I already have a lot of software installed on my machines that Wapt offers.
However, Wapt doesn't offer to update them.
So here's something I'd like to know: how do I integrate the software that's already installed?

Thanks for your help, and Happy New Year 111110000 to all.

[Floflobel]

It all depends on your Python script. If you just install it, it will reinstall over the existing software even if it's already present.
You can add a condition so that if it's already present, it doesn't reinstall.
You can also play around with the version...

[htouvet]

Indeed, well-written packages test the already installed version and only perform post-configuration if the software is already present on the machine (functions install_exe_if_needed or install_msi_if_needed for example)
If the fleet is homogeneous (the PCs all have roughly the same software), then a group software package applied to all PCs will do the job.

Alternatively, one solution is to create a package that detects the software present and installs the corresponding WAPT package.
Then, updates are done via Wapt.

Example of a corresponding setup.py script:

Code: Select all

# -*- coding: utf-8 -*-
from setuphelpers import *

uninstallkey = []

softs = (
    ('adobe flash','tis-flash'),
    ('java update','tis-java'),
    ('irfanview','tis-irfanview'),
    ('7-zip','tis-7zip'),
    ('notepad++','tis-notepadplusplus'),
    ('mozilla firefox esr','tis-firefox-esr'),
)

def update_control(control):
    import re
    # replace description with list of keywords
    control.description = re.sub('\(.*\)','(%s)'%(','.join([s for s,p in softs])),control.description)

def install():
    for (keywords,package) in softs:
        found = installed_softwares(keywords)
    if found and not WAPT.is_installed(package):
        print('%s %s installed, adding package'%(found[0]['name'],found[0]['version']))
        WAPT.install(package)

[Floflobel]

Good morning,

A slightly off-topic question.
Does this printout correctly return the package name and version?

Code: Select all

print('%s %s installed, adding package'%(found[0]['name'],found[0]['version']))
        WAPT.install(package)

[htouvet]

not quite

Code: Select all

print('%s %s installed, adding package'%(found[0]['name'],found[0]['version']))
        WAPT.install(package)

displays the first software name found in the Windows registry that matches the keywords, not Wapt packages.

By the way, there's an indentation problem in my previous post.
It is :

Code: Select all

# -*- coding: utf-8 -*-
from setuphelpers import *

uninstallkey = []

softs = (
    ('adobe flash','tis-flash'),
    ('java update','tis-java'),
    ('irfanview','tis-irfanview'),
    ('7-zip','tis-7zip'),
    ('notepad++','tis-notepadplusplus'),
    ('mozilla firefox esr','tis-firefox-esr'),
)

def update_control(control):
    import re
    # replace description with list of keywords
    control.description = re.sub('\(.*\)','(%s)'%(','.join([s for s,p in softs])),control.description)

def install():
    for (keywords,package) in softs:
        found = installed_softwares(keywords)
        if found and not WAPT.is_installed(package):
            print('%s %s installed, adding package'%(found[0]['name'],found[0]['version']))
            WAPT.install(package)