Seek tools for text document variable substitution from a key / value input file ?

[Eddie Sutton]

I am looking for tools to automatically update text documents with relevant build information such as version information, date of build, the new features included with a milestone.

SubWCRev works well but is limited to Subversion properties:

http://tortoisesvn.net/docs/nightly/TortoiseSVN_en/tsvn-subwcrev-example.html

ReadMe Template File:

-------------------------------

Build date: $WCDATE$

I am looking for a tool could read an input text file containing key value pairs, and substitute variables in a document template for HTML files, readme.txt files, RSS news feed files, etc.

Input File (Manually Maintained)

-------------------------------------------

ReleaseSummary="New Features and Bug Fixes"

Feature1="Cure for cancer"

DownloadUrl="http://acme/com/downloads/installer-1.2.3456.zip"

Output Template File:

-----------------------------

<h1>$ReleaseSummary$<h1>

<a href="$DownloadUrl$" >Download</a>

Thanks in advance for any suggestions,

-Ed

[Daniel Beck]

Use sed? https://en.wikipedia.org/wiki/Sed

Gradle also does this if your build is based on that -- look for filter(…) on e.g. the copy task.

Of course neither supports your file format out of the box.

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[Walter Kelt]

Ant and maven have filter functionality that can be used to update text files that use "properties".
May be handy if you are using ant or maven to create build.

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[Ed of the Mountain]

I am developing in using C++ and Qt 5.5.  However, the gradle, ant, maven solutions sound interesting.

I guess I will need to resort to some sed bash or python scripting to do what I need.

Thank you both for the suggestions,

-Ed