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2013-05-09 build-remote.pl: Enforce timeouts locallyEelco Dolstra1-3/+1
Don't pass --timeout / --max-silent-time to the remote builder. Instead, let the local Nix process terminate the build if it exceeds a timeout. The remote builder will be killed as a side-effect. This gives better error reporting (since the timeout message from the remote side wasn't properly propagated) and handles non-Nix problems like SSH hangs.
2013-05-01 Don't let stderr writes in substituters cause a deadlockEelco Dolstra1-0/+4
2013-04-26 addAdditionalRoots(): Check each path only onceEelco Dolstra1-2/+2
2013-04-23 Fix --timeoutEelco Dolstra1-38/+25
I'm not sure if it has ever worked correctly. The line "lastWait = after;" seems to mean that the timer was reset every time a build produced log output. Note that the timeout is now per build, as documented ("the maximum number of seconds that a builder can run").
2013-04-23 Nix daemon: respect build timeout from the clientEelco Dolstra2-4/+5
2013-04-04 Complain if /homeless-shelter existsEelco Dolstra1-1/+5
2013-03-25 makeStoreWritable: Ask forgiveness, not permissionShea Levy1-2/+2
It is surprisingly impossible to check if a mountpoint is a bind mount on Linux, and in my previous commit I forgot to check if /nix/store was even a mountpoint at all. statvfs.f_flag is not populated with MS_BIND (and even if it were, my check was wrong in the previous commit). Luckily, the semantics of mount with MS_REMOUNT | MS_BIND make both checks unnecessary: if /nix/store is not a mountpoint, then mount will fail with EINVAL, and if /nix/store is not a bind-mount, then it will not be made writable. Thus, if /nix/store is not a mountpoint, we fail immediately (since we don't know how to make it writable), and if /nix/store IS a mountpoint but not a bind-mount, we fail at first write (see below for why we can't check and fail immediately). Note that, due to what is IMO buggy behavior in Linux, calling mount with MS_REMOUNT | MS_BIND on a non-bind readonly mount makes the mountpoint appear writable in two places: In the sixth (but not the 10th!) column of mountinfo, and in the f_flags member of struct statfs. All other syscalls behave as if the mount point were still readonly (at least for Linux 3.9-rc1, but I don't think this has changed recently or is expected to soon). My preferred semantics would be for MS_REMOUNT | MS_BIND to fail on a non-bind mount, as it doesn't make sense to remount a non bind-mount as a bind mount.
2013-03-25 makeStoreWritable: Use statvfs instead of /proc/self/mountinfo to find out ↵Shea Levy1-21/+12
if /nix/store is a read-only bind mount /nix/store could be a read-only bind mount even if it is / in its own filesystem, so checking the 4th field in mountinfo is insufficient. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-03-14 Fix building against Bison 2.6Eelco Dolstra2-6/+4
2013-03-14 Make sure that thunks are restored properly if an exception occursEelco Dolstra1-3/+6
Fixes Hydra bug #67.
2013-03-08 Revert "Prevent config.h from being clobbered"Eelco Dolstra16-104/+177
This reverts commit 28bba8c44f484eae38e8a15dcec73cfa999156f6.
2013-03-07 Prevent config.h from being clobberedEelco Dolstra16-177/+104
2013-02-28 Handle systems without lutimes() or lchown()Eelco Dolstra1-1/+1
2013-02-28 Handle symlinks properlyEelco Dolstra1-1/+1
Now it's really brown paper bag time...
2013-02-27 Handle hard links to other files in the outputEelco Dolstra1-6/+26
2013-02-27 Refactoring: Split off the non-recursive canonicalisePathMetaData()Eelco Dolstra3-37/+52
Also, change the file mode before changing the owner. This prevents a slight time window in which a setuid binary would be setuid root.
2013-02-26 Security: Don't allow builders to change permissions on files they don't ownEelco Dolstra5-20/+17
It turns out that in multi-user Nix, a builder may be able to do ln /etc/shadow $out/foo Afterwards, canonicalisePathMetaData() will be applied to $out/foo, causing /etc/shadow's mode to be set to 444 (readable by everybody but writable by nobody). That's obviously Very Bad. Fortunately, this fails in NixOS's default configuration because /nix/store is a bind mount, so "ln" will fail with "Invalid cross-device link". It also fails if hard-link restrictions are enabled, so a workaround is: echo 1 > /proc/sys/fs/protected_hardlinks The solution is to check that all files in $out are owned by the build user. This means that innocuous operations like "ln ${pkgs.foo}/some-file $out/" are now rejected, but that already failed in chroot builds anyway.
2013-02-19 build-remote: Use the --quiet flagEelco Dolstra1-5/+2
‘--option verbosity 0’ doesn't actually do anything.
2013-02-19 Add `Settings::nixDaemonSocketFile'.Ludovic Courtès5-10/+14
2013-02-19 Enable chroot support on old glibc versions.Ludovic Courtès1-0/+6
2013-02-08 Make "${./path} ..." evaluate to a string, not a pathEelco Dolstra3-5/+7
Wacky string coercion semantics caused expressions like exec = "${./my-script} params..."; to evaluate to a path (‘/path/my-script params’), because anti-quotations are desuged to string concatenation: exec = ./my-script + " params..."; By constrast, adding a space at the start would yield a string as expected: exec = " ${./my-script} params..."; Now the first example also evaluates to a string.
2013-02-08 Rename "hash" to "hashString" and handle SHA-1Eelco Dolstra1-19/+9
2013-02-08 experimental/hashMarc Weber1-0/+26
adding primop function calculating hash of a string Signed-off-by: Marc Weber <marco-oweber@gmx.de>
2013-01-30 Support the coloniesEelco Dolstra1-3/+3
2013-01-23 Only warn about SQLite being busy onceEelco Dolstra1-1/+5
No need to get annoying.
2013-01-22 Correctly handle missing logsEelco Dolstra1-1/+3
2013-01-17 Store build logs in /nix/var/log/nix/drvs/<XX>Eelco Dolstra2-30/+37
...where <XX> is the first two characters of the derivation. Otherwise /nix/var/log/nix/drvs may become so large that we run into all sorts of weird filesystem limits/inefficiences. For instance, ext3/ext4 filesystems will barf with "ext4_dx_add_entry:1551: Directory index full!" once you hit a few million files.
2013-01-05 Delete a left-over trash directory before doing a GCEelco Dolstra1-1/+4
2013-01-04 Fix "0 store paths deleted" messageEelco Dolstra1-0/+2
2013-01-03 Open the database after removing immutable bitsEelco Dolstra1-1/+1
2013-01-03 Remove tabsEelco Dolstra2-46/+46
2013-01-03 Clear any immutable bits in the Nix storeEelco Dolstra9-86/+66
Doing this once makes subsequent operations like garbage collecting more efficient since we don't have to call makeMutable() first.
2013-01-02 If a substitute closure is incomplete, build dependencies, then retry the ↵Eelco Dolstra1-7/+28
substituter Issue #77.
2013-01-02 Automatically fall back if the references of a substitute are not substitutableEelco Dolstra1-1/+1
Fixes #77.
2012-12-29 nix-build: Support talking to old daemonsEelco Dolstra1-1/+10
Fixes #76.
2012-12-29 Allow mounting a path in a different location in the chrootEelco Dolstra3-10/+17
Fixes #24.
2012-12-20 nix-store -q --roots: Respect the gc-keep-outputs/gc-keep-derivations settingsEelco Dolstra9-25/+64
So if a path is not garbage solely because it's reachable from a root due to the gc-keep-outputs or gc-keep-derivations settings, ‘nix-store -q --roots’ now shows that root.
2012-12-20 Yet another rewrite of the garbage collectorEelco Dolstra2-131/+138
But this time it's *obviously* correct! No more segfaults due to infinite recursions for sure, etc. Also, move directories to /nix/store/trash instead of renaming them to /nix/store/bla-gc-<pid>. Then we can just delete /nix/store/trash at the end.
2012-12-19 If gc-keep-derivations is set, only keep the actual deriverEelco Dolstra1-1/+1
This prevents zillions of derivations from being kept, and fixes an infinite recursion in the garbage collector (due to an obscure cycle that can occur with fixed-output derivations).
2012-12-19 Kill the build hook rather than shutting it down cleanlyEelco Dolstra1-7/+1
Waiting for the hook to shut down cleanly sometimes seems to lead to hangs.
2012-12-18 Revert brain fartEelco Dolstra1-2/+0
This reverts commit cc511fd65b7b6de9e87e72fb4bed16fc7efeb8b7.
2012-12-18 Check for potential infinite select() loops when buildingEelco Dolstra1-0/+2
2012-12-13 fix use-after-free bug in mkString(Value&, Symbol&)Stuart Pernsteiner1-1/+1
2012-12-12 Allow setting the profile location using $NIX_PROFILEEelco Dolstra1-0/+3
Fixes #69.
2012-12-11 On SQLITE_BUSY, wait a random amount of timeEelco Dolstra2-1/+7
If all contending processes wait a fixed amount of time (100 ms), there is a good probability that they'll just collide again.
2012-12-04 Tiny optimisation in the filter primopEelco Dolstra1-2/+9
2012-12-04 nix-env: Install all outputs of a derivationEelco Dolstra1-10/+25
If you explicitly install a package, presumably you want all of it. So symlink all outputs in the user environment.
2012-12-03 Fix the ‘--prebuilt-only’ flagEelco Dolstra1-8/+11
2012-12-03 WhitespaceEelco Dolstra3-60/+58
2012-11-28 nix-env -q --out-path: Support multiple outputsEelco Dolstra5-45/+94
We now print all output paths of a package, e.g. openssl-1.0.0i bin=/nix/store/gq2mvh0wb9l90djvsagln3aqywqmr6vl-openssl-1.0.0i-bin;man=/nix/store/7zwf5r5hsdarl3n86dasvb4chm2xzw9n-openssl-1.0.0i-man;/nix/store/cj7xvk7fjp9q887359j75pw3pzjfmqf1-openssl-1.0.0i or (in XML mode) <item attrPath="openssl" name="openssl-1.0.0i" system="x86_64-linux"> <output name="bin" path="/nix/store/gq2mvh0wb9l90djvsagln3aqywqmr6vl-openssl-1.0.0i-bin" /> <output name="man" path="/nix/store/7zwf5r5hsdarl3n86dasvb4chm2xzw9n-openssl-1.0.0i-man" /> <output name="out" path="/nix/store/cj7xvk7fjp9q887359j75pw3pzjfmqf1-openssl-1.0.0i" /> </item>
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