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Updated README to cover more ground

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# RepoCompare
Code to compare Rocky Linux repositories against RHEL 8 ones and produce status information
Code to compare Rocky Linux repositories against RHEL ones and produce status information in HTML format.
So far, a simple script that you can call to compare like-for-like RHEL 8 vs. Rocky 8 Repos.
Comparison can be done one at a time by calling the scripts with repos as arguments, or the "helper" scripts can be used to produce automated reports across all repos.
Example call: ```./repo_compare_html.sh RHEL8_BaseOS Rocky8_BaseOS```
These scripts can be called against any repositories, but are designed to compare Red Hat Enterprise Linux against Rocky Linux. When doing this, they **must** be run on a Red Hat Enterprise Linux system, with a valid subscription!
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## QuickStart:
How to get a friendly HTML menu comparison of RHEL vs. Rocky (like the one published on https://repocompare.rockylinux.org ):
1. Have a subscribed Red Hat Enterprise Linux 8 or 9 machine you are running this on, with root access.
2. Clone or copy this repository on to the subscribed machine.
3. Edit **repo_compare_launcher.sh**, change the **$RESULTSDIR** variable at the top to a folder where you want to store HTML output of the scripts.
4. Run **repo_compare_launcher.sh**. It will take a while, likely between 10-30 minutes.
5. Copy the **html/** folder to a web directory of your choice.
6. Copy the resulting HTML files from the RESULTSDIR folder (that you specified earlier) into **html/repocompare_results/** in the same web directory.
7. You can now browse the results via web browser with friendly headers and organized pages.
8. Steps 4-6 can be automated via **cron** job to run on a schedule. Remember the script must be run as root! (due to RHEL DNF subscription limitations).
9. When scheduling via `cron`, I recommend periodically wiping older html results files after 10 days or so, or the folder will become massive: `find /path/to/repocompare_results/ -iname "*.html" -type f -mtime +10 -exec rm -f {} \;`
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## Base repocompare script:
The base script is **repo_compare_html.sh**, and takes a source repo and destination repo as arguments:
```./repo_compare_html.sh RepoA RepoB > output.html```
Here is an example for comparing BaseOS in RHEL vs. Rocky:
Example call: ```./repo_compare_html.sh RHEL8_BaseOS Rocky8_BaseOS > RHEL8_Rocky8_BaseOS.html```
WARNING: only compares default modules right now! Non-default module comparisons coming soon(tm)
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# ModuleCompare
## Module Comparisons Script:
This is a similar script to the above RepoCompare, but will analyze all the module versions against each other from one distro to the next.
It's called like the above script, except with a comma separated list of repositories that include modules.
It's called like the above script, except with a comma separated list of repositories that include modules:
```./module_compare_html.sh RepoA,RepoB RepoX,RepoY > output.html```
For example, a typical usage looks like this: ```./module_compare_html.sh RHEL8_AppStream,RHEL8_CodeReady Rocky8_AppStream,Rocky8_PowerTools```
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# Support Scripts
## Running Comparisons Across Entire Distro
Some support scripts and HTML templates have been included
A couple support scripts are also in the repository:
**mkrepofile.sh :** Create repo files for Rocky and duplicate ones with friendly names for the RHEL repos
**mkrepofile.sh :** Create repo files for Rocky and duplicate ones with friendly names for the RHEL repos (and extract+place subscription entitlement info from RHEL, which rotates regularly)
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**repo_compare_launcher.sh :** Run all combinations of repocompare RHEL8 <---> Rocky8. Compares production, staging, source, modules, RHEL Beta, etc.
**repo_compare_launcher.sh :** Run all combinations of repocompare RHEL <---> Rocky. Compares 8 and 9 production, staging, source, modules, RHEL Beta, etc.