Build: Try to unpack Firefox ESR via xz, fall back to bzip2 (3.x) #5684
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The `-j` switch passed to `tar` indicates the archive is compressed using the bzip2 format (`bz2` extension). That was how Firefox used to be compressed until recently, but the new ESR release now uses xz. Ubuntu `tar` doesn't auto-guess the encryption algorithm, so to support both, first try with xz and fall back to bzip2 if that fails. Note: this will download the old Firefox ESR twice, but it will still work when the current ESR version starts to use xz with no changes to the code. Ref jquerygh-5682
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mgol
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The `-j` switch passed to `tar` indicates the archive is compressed using the bzip2 format (`bz2` extension). That was how Firefox used to be compressed until recently, but the new ESR release now uses xz. Ubuntu `tar` doesn't auto-guess the encryption algorithm, so to support both, first try with xz and fall back to bzip2 if that fails. Note: this will download the old Firefox ESR twice, but it will still work when the current ESR version starts to use xz with no changes to the code. Ref jquerygh-5684
timmywil
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Aug 4, 2025
mgol
added a commit
that referenced
this pull request
Aug 4, 2025
The `-j` switch passed to `tar` indicates the archive is compressed using the bzip2 format (`bz2` extension). That was how Firefox used to be compressed until recently, but the new ESR release now uses xz. Ubuntu `tar` doesn't auto-guess the encryption algorithm, so to support both, first try with xz and fall back to bzip2 if that fails. Note: this will download the old Firefox ESR twice, but it will still work when the current ESR version starts to use xz with no changes to the code. Closes gh-5682 Ref gh-5684
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Summary
This is a 3.x version of gh-5682.
The
-jswitch passed totarindicates the archive is compressed using the bzip2 format (bz2extension). That was how Firefox used to be compressed until recently, but the new ESR release now uses xz. Ubuntutardoesn't auto-guess the encryption algorithm, so to support both, first try with xz and fall back to bzip2 if that fails.Note: this will download the old Firefox ESR twice, but it will still work when the current ESR version starts to use xz with no changes to the code
Ref gh-5682
Checklist
New tests have been added to show the fix or feature worksIf needed, a docs issue/PR was created at https://github.com/jquery/api.jquery.com