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cgit/tests/t0020-validate-cache.sh

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Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
#!/bin/sh
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
test_description='Validate cache'
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
. ./setup.sh
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
test_expect_success 'verify cache-size=0' '
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
rm -f cache/* &&
tests/: Do not use `sed -i` "-i" isn't part of the POSIX standard and doesn't work on several platforms such as OpenBSD. Use a temporary file instead. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-09 18:02:32 +00:00
sed -e "s/cache-size=1021$/cache-size=0/" cgitrc >cgitrc.tmp &&
mv -f cgitrc.tmp cgitrc &&
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
cgit_url "" &&
cgit_url "foo" &&
cgit_url "foo/refs" &&
cgit_url "foo/tree" &&
cgit_url "foo/log" &&
cgit_url "foo/diff" &&
cgit_url "foo/patch" &&
cgit_url "bar" &&
cgit_url "bar/refs" &&
cgit_url "bar/tree" &&
cgit_url "bar/log" &&
cgit_url "bar/diff" &&
cgit_url "bar/patch" &&
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
ls cache >output &&
test_line_count = 0 output
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
'
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
test_expect_success 'verify cache-size=1' '
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
rm -f cache/* &&
tests/: Do not use `sed -i` "-i" isn't part of the POSIX standard and doesn't work on several platforms such as OpenBSD. Use a temporary file instead. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-09 18:02:32 +00:00
sed -e "s/cache-size=0$/cache-size=1/" cgitrc >cgitrc.tmp &&
mv -f cgitrc.tmp cgitrc &&
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
cgit_url "" &&
cgit_url "foo" &&
cgit_url "foo/refs" &&
cgit_url "foo/tree" &&
cgit_url "foo/log" &&
cgit_url "foo/diff" &&
cgit_url "foo/patch" &&
cgit_url "bar" &&
cgit_url "bar/refs" &&
cgit_url "bar/tree" &&
cgit_url "bar/log" &&
cgit_url "bar/diff" &&
cgit_url "bar/patch" &&
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
ls cache >output &&
test_line_count = 1 output
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
'
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
test_expect_success 'verify cache-size=1021' '
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
rm -f cache/* &&
tests/: Do not use `sed -i` "-i" isn't part of the POSIX standard and doesn't work on several platforms such as OpenBSD. Use a temporary file instead. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-09 18:02:32 +00:00
sed -e "s/cache-size=1$/cache-size=1021/" cgitrc >cgitrc.tmp &&
mv -f cgitrc.tmp cgitrc &&
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
cgit_url "" &&
cgit_url "foo" &&
cgit_url "foo/refs" &&
cgit_url "foo/tree" &&
cgit_url "foo/log" &&
cgit_url "foo/diff" &&
cgit_url "foo/patch" &&
cgit_url "bar" &&
cgit_url "bar/refs" &&
cgit_url "bar/tree" &&
cgit_url "bar/log" &&
cgit_url "bar/diff" &&
cgit_url "bar/patch" &&
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
ls cache >output &&
cache.c: cache ls_cache output properly By using the standard library's printf, cache_ls does not redirect its output to the cache when we change the process' stdout file descriptor to point to the cache file. Fix this by using "htmlf" in the same way that we do for writing HTTP headers. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-18 17:46:39 +00:00
test_line_count = 13 output &&
cgit_url "foo/ls_cache" >output.full &&
strip_headers <output.full >output &&
test_line_count = 13 output &&
# Check that ls_cache output is cached correctly
cgit_url "foo/ls_cache" >output.second &&
test_cmp output.full output.second
Redesign the caching layer The original caching layer in cgit has no upper bound on the number of concurrent cache entries, so when cgit is traversed by a spider (like the googlebot), the cache might end up filling your disk. Also, if any error occurs in the cache layer, no content is returned to the client. This patch redesigns the caching layer to avoid these flaws by * giving the cache a bound number of slots * disabling the cache for the current request when errors occur The cache size limit is implemented by hashing the querystring (the cache lookup key) and generating a cache filename based on this hash modulo the cache size. In order to detect hash collisions, the full lookup key (i.e. the querystring) is stored in the cache file (separated from its associated content by ascii 0). The cache filename is the reversed 8-digit hexadecimal representation of hash(key) % cache_size which should make the filesystem lookup pretty fast (if directory content is indexed/sorted); reversing the representation avoids the problem where all keys have equal prefix. There is a new config option, cache-size, which sets the upper bound for the cache. Default value for this option is 0, which has the same effect as setting nocache=1 (hence nocache is now deprecated). Included in this patch is also a new testfile which verifies that the new option works as intended. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2008-04-28 09:32:42 +00:00
'
tests: use Git's test framework This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-01 14:09:05 +00:00
test_done
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