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2013-07-22Merge branch 'jk/gcc-function-attributes'Libravatar Junio C Hamano1-0/+1
Use the function attributes extension to catch mistakes in use of our own variadic functions that use NULL sentinel at the end (i.e. like execl(3)) and format strings (i.e. like printf(3)). * jk/gcc-function-attributes: Add the LAST_ARG_MUST_BE_NULL macro wt-status: use "format" function attribute for status_printf use "sentinel" function attribute for variadic lists add missing "format" function attributes
2013-07-09add missing "format" function attributesLibravatar Jeff King1-0/+1
For most of our functions that take printf-like formats, we use gcc's __attribute__((format)) to get compiler warnings when the functions are misused. Let's give a few more functions the same protection. In most cases, the annotations do not uncover any actual bugs; the only code change needed is that we passed a size_t to transfer_debug, which expected an int. Since we expect the passed-in value to be a relatively small buffer size (and cast a similar value to int directly below), we can just cast away the problem. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-24Merge branch 'mm/rm-coalesce-errors'Libravatar Junio C Hamano1-0/+1
Give a single message followed by list of paths from "git rm" to report multiple paths that cannot be removed. * mm/rm-coalesce-errors: rm: introduce advice.rmHints to shorten messages rm: better error message on failure for multiple files
2013-06-12rm: introduce advice.rmHints to shorten messagesLibravatar Mathieu Lienard--Mayor1-0/+1
Introduce advice.rmHints to choose whether to display advice or not when git rm fails. Defaults to true, in order to preserve current behavior. As an example, the message: error: 'foo.txt' has changes staged in the index (use --cached to keep the file, or -f to force removal) would look like, with advice.rmHints=false: error: 'foo.txt' has changes staged in the index Signed-off-by: Mathieu Lienard--Mayor <Mathieu.Lienard--Mayor@ensimag.imag.fr> Signed-off-by: Jorge Juan Garcia Garcia <Jorge-Juan.Garcia-Garcia@ensimag.imag.fr> Signed-off-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-11Merge branch 'nd/warn-ambiguous-object-name'Libravatar Junio C Hamano1-0/+1
"git cmd <name>", when <name> happens to be a 40-hex string, directly uses the 40-hex string as an object name, even if a ref "refs/<some hierarchy>/<name>" exists. This disambiguation order is unlikely to change, but we should warn about the ambiguity just like we warn when more than one refs/ hierachies share the same name. * nd/warn-ambiguous-object-name: get_sha1: warn about full or short object names that look like refs
2013-05-29get_sha1: warn about full or short object names that look like refsLibravatar Nguyễn Thái Ngọc Duy1-0/+1
When we get 40 hex digits, we immediately assume it's an SHA-1. This is the right thing to do because we have no way else to specify an object. If there is a ref with the same object name, it will be ignored. Warn the user about this case because the ref with full object name is likely a mistake, for example git checkout -b $empty_var $(git rev-parse something) advice.object_name_warning is not documented because frankly people should not be aware about it until they encounter this situation. While at there, warn about ambiguation with abbreviated SHA-1 too. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02branch: give advice when tracking start-point is missingLibravatar Jeff King1-0/+1
If the user requests to --set-upstream-to a branch that does not exist, then either: 1. It was a typo. 2. They thought the branch should exist. In case (1), there is not much we can do beyond showing the name we tried to use. For case (2), though, we can help to guide them through common workflows. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-21Merge branch 'tb/document-status-u-tradeoff'Libravatar Junio C Hamano1-0/+1
Suggest users to look into using--untracked=no option when "git status" takes too long. * tb/document-status-u-tradeoff: status: advise to consider use of -u when read_directory takes too long git status: document trade-offs in choosing parameters to the -u option
2013-03-16status: advise to consider use of -u when read_directory takes too longLibravatar Nguyễn Thái Ngọc Duy1-0/+1
Introduce advice.statusUoption to suggest considering use of -u to strike different trade-off when it took more than 2 seconds to enumerate untracked/ignored files. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCELibravatar Junio C Hamano1-0/+2
When we push to update an existing ref, if: * the object at the tip of the remote is not a commit; or * the object we are pushing is not a commit, it won't be correct to suggest to fetch, integrate and push again, as the old and new objects will not "merge". We should explain that the push must be forced when there is a non-committish object is involved in such a case. If we do not have the current object at the tip of the remote, we do not even know that object, when fetched, is something that can be merged. In such a case, suggesting to pull first just like non-fast-forward case may not be technically correct, but in practice, most such failures are seen when you try to push your work to a branch without knowing that somebody else already pushed to update the same branch since you forked, so "pull first" would work as a suggestion most of the time. And if the object at the tip is not a commit, "pull first" will fail, without making any permanent damage. As a side effect, it also makes the error message the user will get during the next "push" attempt easier to understand, now the user is aware that a non-commit object is involved. In these cases, the current code already rejects such a push on the client end, but we used the same error and advice messages as the ones used when rejecting a non-fast-forward push, i.e. pull from there and integrate before pushing again. Introduce new rejection reasons and reword the messages appropriately. [jc: with help by Peff on message details] Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03push: allow already-exists advice to be disabledLibravatar Chris Rorvick1-0/+1
Add 'advice.pushAlreadyExists' option to disable the advice shown when an update is rejected for a reference that is not allowed to update at all (verses those that are allowed to fast-forward.) Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03push: rename config variable for more general useLibravatar Chris Rorvick1-1/+1
The 'pushNonFastForward' advice config can be used to squelch several instances of push-related advice. Rename it to 'pushUpdateRejected' to cover other reject scenarios that are unrelated to fast-forwarding. Retain the old name for compatibility. Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-19push: Provide situational hints for non-fast-forward errorsLibravatar Christopher Tiwald1-0/+3
Pushing a non-fast-forward update to a remote repository will result in an error, but the hint text doesn't provide the correct resolution in every case. Give better resolution advice in three push scenarios: 1) If you push your current branch and it triggers a non-fast-forward error, you should merge remote changes with 'git pull' before pushing again. 2) If you push to a shared repository others push to, and your local tracking branches are not kept up to date, the 'matching refs' default will generate non-fast-forward errors on outdated branches. If this is your workflow, the 'matching refs' default is not for you. Consider setting the 'push.default' configuration variable to 'current' or 'upstream' to ensure only your current branch is pushed. 3) If you explicitly specify a ref that is not your current branch or push matching branches with ':', you will generate a non-fast-forward error if any pushed branch tip is out of date. You should checkout the offending branch and merge remote changes before pushing again. Teach transport.c to recognize these scenarios and configure push.c to hint for them. If 'git push's default behavior changes or we discover more scenarios, extension is easy. Standardize on the advice API and add three new advice variables, 'pushNonFFCurrent', 'pushNonFFDefault', and 'pushNonFFMatching'. Setting any of these to 'false' will disable their affiliated advice. Setting 'pushNonFastForward' to false will disable all three, thus preserving the config option for users who already set it, but guaranteeing new users won't disable push advice accidentally. Based-on-patch-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Christopher Tiwald <christiwald@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-16clone: print advice on checking out detached HEADLibravatar Nguyễn Thái Ngọc Duy1-0/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04advice: Introduce error_resolve_conflictLibravatar Ramkumar Ramachandra1-1/+2
Enable future callers to report a conflict and not die immediately by introducing a new function called error_resolve_conflict. Re-implement die_resolve_conflict as a call to error_resolve_conflict followed by a call to die. Consequently, the message printed by die_resolve_conflict changes from fatal: 'commit' is not possible because you have unmerged files. Please, fix them up in the work tree ... ... to error: 'commit' is not possible because you have unmerged files. hint: Fix them up in the work tree ... hint: ... fatal: Exiting because of an unresolved conflict. Hints are printed using the same advise function introduced in v1.7.3-rc0~26^2~3 (Introduce advise() to print hints, 2010-08-11). Inspired-by: Christian Couder <chistian.couder@gmail.com> Helped-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-29Reword "detached HEAD" notificationLibravatar Junio C Hamano1-0/+1
The old "advice" message explained how to create a branch after going into a detached HEAD state but didn't make it clear why the user may want to do so. Also "moving to ... which isn't a local branch" was unclear if it is complaining, if it is describing the new state, or if it is explaining why the HEAD is detached (the true reason is the last one). Give the established phrase 'detached HEAD' first to make it easy for users to look up the concept in documentation, and briefly describe what can be done in the state (i.e. play around without having to clean up) before telling the user how to keep what was done during the temporary state. Allow the long description to be hidden by setting advice.detachedHead configuration to false. We might want to customize the advice depending on how the commit to check out was spelled (e.g. instead of "new-branch-name", we way want to say "topic" when "git checkout origin/topic" triggered this message) in later updates, but this encapsulates that into a separate function and it should be a good first step. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20Merge branch 'mm/conflict-advice'Libravatar Junio C Hamano1-0/+5
* mm/conflict-advice: Be more user-friendly when refusing to do something because of conflict. Conflicts: Documentation/config.txt advice.c advice.h
2010-01-14commit: allow suppression of implicit identity adviceLibravatar Jeff King1-0/+1
We now nag the user with a giant warning when their identity was pulled from the username, hostname, and gecos information, in case it is not correct. Most users will suppress this by simply setting up their information correctly. However, there may be some users who consciously want to use that information, because having the value change from host to host contains useful information. These users can now set advice.implicitidentity to false to suppress the message. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-12Be more user-friendly when refusing to do something because of conflict.Libravatar Matthieu Moy1-0/+5
Various commands refuse to run in the presence of conflicts (commit, merge, pull, cherry-pick/revert). They all used to provide rough, and inconsistant error messages. A new variable advice.resolveconflict is introduced, and allows more verbose messages, pointing the user to the appropriate solution. For commit, the error message used to look like this: $ git commit foo.txt: needs merge foo.txt: unmerged (c34a92682e0394bc0d6f4d4a67a8e2d32395c169) foo.txt: unmerged (3afcd75de8de0bb5076942fcb17446be50451030) foo.txt: unmerged (c9785d77b76dfe4fb038bf927ee518f6ae45ede4) error: Error building trees The "need merge" line is given by refresh_cache. We add the IN_PORCELAIN option to make the output more consistant with the other porcelain commands, and catch the error in return, to stop with a clean error message. The next lines were displayed by a call to cache_tree_update(), which is not reached anymore if we noticed the conflict. The new output looks like: U foo.txt fatal: 'commit' is not possible because you have unmerged files. Please, fix them up in the work tree, and then use 'git add/rm <file>' as appropriate to mark resolution and make a commit, or use 'git commit -a'. Pull is slightly modified to abort immediately if $GIT_DIR/MERGE_HEAD exists instead of waiting for merge to complain. The behavior of merge and the test-case are slightly modified to reflect the usual flow: start with conflicts, fix them, and afterwards get rid of MERGE_HEAD, with different error messages at each stage. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-22merge-recursive: point the user to commit when file would be overwritten.Libravatar Matthieu Moy1-0/+1
The commit-before-pull is well accepted in the DVCS community, but is confusing some new users. This should get them back in the right way when the problem occurs. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-11status: make "how to stage" messages optionalLibravatar Jeff King1-0/+1
These messages are nice for new users, but experienced git users know how to manipulate the index, and these messages waste a lot of screen real estate. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-11push: make non-fast-forward help message configurableLibravatar Jeff King1-0/+8
This message is designed to help new users understand what has happened when refs fail to push. However, it does not help experienced users at all, and significantly clutters the output, frequently dwarfing the regular status table and making it harder to see. This patch introduces a general configuration mechanism for optional messages, with this push message as the first example. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>