Using nsDialog's listview to install files

Question

I have a .txt file with this lines:

• app1
• app2
• app3
• ...
• appN

Also I have this files at the ${srcdir} before I make an installer:

• ${srcdir}\app1
• ${srcdir}\app2
• ${srcdir}\app3
• ...
• ${srcdir}\appN

List of files always changes so I need to manually correct the nsi-script.

How can I make checkbox-list at custom page with listview which depends on file.txt?

Now I'm using component page and simple construction to check for files.

SectionGroup /e "Installing apps" SecApps

!if /FileExists "E:\src\app.dll"
Section "Install app1"
SetOutPath "$InstDir"
File "E:\src\app.dll"
SectionEnd
!endif

!if /FileExists "E:\src\app2.dll"
Section "Install app2"
SetOutPath "$InstDir"
File "E:\src\app2.dll"
SectionEnd
!endif

!if /FileExists "E:\src\app3.dll"
Section "Install app3"
SetOutPath "$InstDir"
File "E:\src\app3.dll"
SectionEnd
!endif

SectionGroupEnd

Answer 1

When you want to do something advanced at compile-time the best option is usually to call an external script/application with !system:

!define srcdir "."

; Make some dummy files for this example
!appendfile "${srcdir}\foo.txt" "!"
!appendfile "${srcdir}\bar.txt" "!"
!delfile /nonfatal "${srcdir}\filelist.txt"
!appendfile "${srcdir}\filelist.txt" "foo.txt$\r$\n"
!appendfile "${srcdir}\filelist.txt" "bar.txt$\r$\n"

; Make batch file for this example (In a real installer you probably don't want to generate the .bat on the fly like this)
!define /redef batch "${__FILE__}\..\parsefile.bat"
!delfile /nonfatal "${batch}"
!appendfile "${batch}" "@echo off&setlocal ENABLEEXTENSIONS$\r$\n"
!appendfile "${batch}" `for /F "usebackq" %%A in ("%~2") do ($\r$\n`
!appendfile "${batch}" '  >> %1 echo Section "%%~nA"$\r$\n'
!appendfile "${batch}" '  >> %1 echo File "%%A"$\r$\n'
!appendfile "${batch}" '  >> %1 echo SectionEnd$\r$\n'
!appendfile "${batch}" ")$\r$\n"

!tempfile nsh
!system '"${batch}" "${nsh}" "${srcdir}\filelist.txt"' = 0
!include "${nsh}"
!delfile "${nsh}"
!undef nsh

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