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Avoiding multiple downloads of FGData on Linux: Difference between revisions
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Avoiding multiple downloads of FGData on Linux (view source)
Revision as of 14:19, 5 October 2024
, 5 October 2024→The main ideas
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* You can use a single cloned fgdata for everything using git worktrees. | * You can use a single cloned fgdata for everything using git worktrees. | ||
* If you are building more than one version of flightgear, install/flightgear is not a particularly good location for the main fgdata git archive. | * If you are building more than one version of flightgear, install/flightgear is not a particularly good location for the main fgdata git archive. | ||
* fgdata normally lives as a sub-directory in <code>install/flightgear/ | * fgdata normally lives as a sub-directory in <code>install/flightgear/</code>. There is no rule that says it has to stay there. | ||
* Once it exists, <code>install/flightgear/fgdata</code> can moved to a safe location and replaced by a symbolic link to that location. The reason for doing this is that you may at some point want to remove your install directory and completely rebuild it. Having fgdata in a "safe" location prevents it from being deleted. You'll just have to recreate the install/flghtgear path and re-create the symbolic link before proceeding with your rebuild. | * Once it exists, <code>install/flightgear/fgdata</code> can moved to a safe location and replaced by a symbolic link to that location. The reason for doing this is that you may at some point want to remove your install directory and completely rebuild it. Having fgdata in a "safe" location prevents it from being deleted. You'll just have to recreate the install/flghtgear path and re-create the symbolic link before proceeding with your rebuild. | ||
* The git worktree feature can be used to create multiple additional copies of fgdata with a specific version of fgdata checked out for each worktree. This avoids the necessity of re-downloading fgdata for each variant of flightgear you build. Having fgdata in that "safe" location is a good idea if you are going to use this git feature. | * The git worktree feature can be used to create multiple additional copies of fgdata with a specific version of fgdata checked out for each worktree. This avoids the necessity of re-downloading fgdata for each variant of flightgear you build. Having fgdata in that "safe" location is a good idea if you are going to use this git feature. | ||