64 lines
1.8 KiB
Plaintext
64 lines
1.8 KiB
Plaintext
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GENERATE SELF-EXTRACTING EXECUTABLE
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-----------------------------------
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This directory contains the files necessary for performing the generation
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of the self-extracting-executable. The main entry-point is GenerateCAB(),
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which in turn manipulates INF and CDF objects,
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gencab - CAB control module.
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geninf - INF object methods.
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gencdf - CDF object methods.
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This design has seperated responsibilities of the various components into
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object-type modules. For example, anything which has to do with an INF-file
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is handled in the (geninf.c/geninf.h) modules. Likewise, the CDF routines
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use an INF interface to obtain information concerning the INF. Previous
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implementations of which this code was derived, utilized a monolithic approach
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where the CDF, INF and CAB routines had integral knowledge of each others
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functionality.
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We diverged from this approach to a more object-oriented design which we
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believe is more maintainable and somewhat self-documenting.
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Structure/Flow:
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cab:
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if (Create INF Object) {
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if (Create CDF Object) {
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query CDF, INF objects for pertinent information.
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if (CDF newer than CAB) {
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Execute IExpress to generate new cab.
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} else {
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utilize cached cabname.
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}
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Free CDF Object.
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}
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Free INF Object.
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}
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return cabname.
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Issues:
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-------
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1) How do we determine op-sys versioning and archetecture? We need this
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to determine where to pull our INF driver-files. This should be passed
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in at GenerateCAB() time.
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2) Generating an INF (to be or not to be)...although not huge, this could
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change our implementating of caching of the CDF/CAB files. Currently,
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we will generate a layout-file (sort of).
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