[thin_repair, cache_repair] Check input file exists earlier
and zero superblock if we fail part way through a repair. bz1499781
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@@ -15,6 +15,7 @@
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(define-tool cache-dump)
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(define-tool cache-restore)
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(define-tool cache-metadata-size)
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(define-tool cache-repair)
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(define-syntax with-cache-xml
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(syntax-rules ()
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@@ -35,7 +36,8 @@
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(syntax-rules ()
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((_ (md) b1 b2 ...)
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(with-temp-file-sized ((md "cache.bin" (to-bytes (meg 4))))
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b1 b2 ...))))
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(system (fmt #f "dd if=/usr/bin/ls of=" md " bs=4096 > /dev/null 2>&1"))
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b1 b2 ...))))
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(define-syntax with-empty-metadata
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(syntax-rules ()
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@@ -180,7 +182,7 @@
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"the input file can't be found"
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(with-empty-metadata (md)
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(run-fail-rcv (_ stderr) (cache-restore "-i no-such-file -o" md)
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(assert-superblock-untouched md)
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(assert-superblock-all-zeroes md)
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(assert-starts-with "Couldn't stat file" stderr))))
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(define-scenario (cache-restore garbage-input-file)
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@@ -188,7 +190,7 @@
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(with-empty-metadata (md)
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(with-temp-file-sized ((xml "cache.xml" 4096))
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(run-fail-rcv (_ stderr) (cache-restore "-i" xml "-o" md)
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(assert-superblock-untouched md)))))
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(assert-superblock-all-zeroes md)))))
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(define-scenario (cache-restore missing-output-file)
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"the output file can't be found"
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@@ -354,4 +356,28 @@
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(run-ok-rcv (stdout stderr) (cache-metadata-size "--nr-blocks 67108864")
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(assert-equal "3678208 sectors" stdout)
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(assert-eof stderr)))
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;;;-----------------------------------------------------------
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;;; cache_repair scenarios
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;;;-----------------------------------------------------------
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(define-scenario (cache-repair missing-input-file)
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"the input file can't be found"
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(with-empty-metadata (md)
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(run-fail-rcv (_ stderr) (cache-repair "-i no-such-file -o" md)
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(assert-superblock-all-zeroes md)
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(assert-starts-with "Couldn't stat path" stderr))))
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(define-scenario (cache-repair garbage-input-file)
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"the input file is just zeroes"
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(with-empty-metadata (md1)
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(with-corrupt-metadata (md2)
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(run-fail-rcv (_ stderr) (cache-repair "-i" md1 "-o" md2)
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(assert-superblock-all-zeroes md2)))))
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(define-scenario (cache-repair missing-output-file)
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"the output file can't be found"
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(with-cache-xml (xml)
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(run-fail-rcv (_ stderr) (cache-repair "-i" xml)
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(assert-starts-with "No output file provided." stderr))))
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)
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