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2018-05-29completion: drop the hard coded list of config varsLibravatar Nguyễn Thái Ngọc Duy1-3/+31
The new help option --config-for-completion is a machine friendlier version of --config where all the placeholders and wildcards are dropped, leaving only the good, completable prefixes for git-completion.bash to consume. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29help: add --config to list all available configLibravatar Nguyễn Thái Ngọc Duy1-0/+56
Sometimes it helps to list all available config vars so the user can search for something they want. The config man page can also be used but it's harder to search if you want to focus on the variable name, for example. This is not the best way to collect the available config since it's not precise. Ideally we should have a centralized list of config in C code (pretty much like 'struct option'), but that's a lot more work. This will do for now. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29Merge branch 'nd/command-list' into nd/complete-config-varsLibravatar Junio C Hamano1-27/+217
* nd/command-list: completion: allow to customize the completable command list completion: add and use --list-cmds=alias completion: add and use --list-cmds=nohelpers Move declaration for alias.c to alias.h completion: reduce completable command list completion: let git provide the completable command list command-list.txt: documentation and guide line help: use command-list.txt for the source of guides help: add "-a --verbose" to list all commands with synopsis git: support --list-cmds=list-<category> completion: implement and use --list-cmds=main,others git --list-cmds: collect command list in a string_list git.c: convert --list-* to --list-cmds=* Remove common-cmds.h help: use command-list.h for common command list generate-cmds.sh: export all commands to command-list.h generate-cmds.sh: factor out synopsis extract code
2018-05-21completion: allow to customize the completable command listLibravatar Nguyễn Thái Ngọc Duy1-0/+33
By default we show porcelain, external commands and a couple others that are also popular. If you are not happy with this list, you can now customize it a new config variable. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21help: use command-list.txt for the source of guidesLibravatar Nguyễn Thái Ngọc Duy1-4/+17
The help command currently hard codes the list of guides and their summary in C. Let's move this list to command-list.txt. This lets us extract summary lines from Documentation/git*.txt. This also potentially lets us list guides in git.txt, but I'll leave that for now. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21help: add "-a --verbose" to list all commands with synopsisLibravatar Nguyễn Thái Ngọc Duy1-0/+16
This lists all recognized commands [1] by category. The group order follows closely git.txt. [1] We may actually show commands that are not built (e.g. if you set NO_PERL you don't have git-instaweb but it's still listed here). I ignore the problem because on Linux a git package could be split anyway. The "git-core" package may not contain git-instaweb even if it's built because it may end up in a separate package. We can't know anyway. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21git: support --list-cmds=list-<category>Libravatar Nguyễn Thái Ngọc Duy1-0/+23
This allows us to select any group of commands by a category defined in command-list.txt. This is an internal/hidden option so we don't have to be picky about the category name or worried about exposing too much. This will be used later by git-completion.bash to retrieve certain command groups. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21completion: implement and use --list-cmds=main,othersLibravatar Nguyễn Thái Ngọc Duy1-0/+32
This is part of the effort to break down and provide commands by category in machine-readable form. This could be helpful later on when completion script switches to use --list-cmds for selecting completable commands. It would be much easier for the user to choose to complete _all_ commands instead of the default selection by passing different values to --list-cmds in git-completino.bash. While at there, replace "git help -a" in git-completion.bash with --list-cmds since it's better suited for this task. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-10help: use command-list.h for common command listLibravatar Nguyễn Thái Ngọc Duy1-36/+109
The previous commit added code generation for all_cmd_desc[] which includes almost everything we need to generate common command list. Convert help code to use that array instead and drop common_cmds[] array. The description of each common command group is removed from command-list.txt. This keeps this file format simpler. common-cmds.h will not be generated correctly after this change due to the command-list.txt format change. But it does not matter and common-cmds.h will be removed. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11exec_cmd: rename to use dash in file nameLibravatar Stefan Beller1-1/+1
This is more consistent with the project style. The majority of Git's source files use dashes in preference to underscores in their file names. Signed-off-by: Stefan Beller <sbeller@google.com>
2017-12-14version --build-options: report commit, too, if possibleLibravatar Johannes Schindelin1-0/+5
In particular when local tags are used (or tags that are pushed to some fork) to build Git, it is very hard to figure out from which particular revision a particular Git executable was built. It gets worse when those tags are deleted, or even updated. Let's just report an exact, unabbreviated commit name in our build options. We need to be careful, though, to report when the current commit cannot be determined, e.g. when building from a tarball without any associated Git repository. This could be the case also when extracting Git's source code into an unrelated Git worktree. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-14version --build-options: also report host CPULibravatar Eric Sunshine1-0/+1
It can be helpful for bug reports to include information about the environment in which the bug occurs. "git version --build-options" can help to supplement this information. In addition to the size of 'long' already reported by --build-options, also report the host's CPU type. Example output: $ git version --build-options git version 2.9.3.windows.2.826.g06c0f2f cpu: x86_64 sizeof-long: 4 New Makefile variable HOST_CPU supports cross-compiling. Suggested-by: Adric Norris <landstander668@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-26Merge branch 'mb/reword-autocomplete-message'Libravatar Junio C Hamano1-6/+12
Message update. * mb/reword-autocomplete-message: auto-correct: tweak phrasing
2017-06-24Merge branch 'ab/free-and-null'Libravatar Junio C Hamano1-2/+1
A common pattern to free a piece of memory and assign NULL to the pointer that used to point at it has been replaced with a new FREE_AND_NULL() macro. * ab/free-and-null: *.[ch] refactoring: make use of the FREE_AND_NULL() macro coccinelle: make use of the "expression" FREE_AND_NULL() rule coccinelle: add a rule to make "expression" code use FREE_AND_NULL() coccinelle: make use of the "type" FREE_AND_NULL() rule coccinelle: add a rule to make "type" code use FREE_AND_NULL() git-compat-util: add a FREE_AND_NULL() wrapper around free(ptr); ptr = NULL
2017-06-24Merge branch 'bw/config-h'Libravatar Junio C Hamano1-0/+1
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-24Merge branch 'js/alias-early-config'Libravatar Junio C Hamano1-1/+1
The code to pick up and execute command alias definition from the configuration used to switch to the top of the working tree and then come back when the expanded alias was executed, which was unnecessarilyl complex. Attempt to simplify the logic by using the early-config mechanism that does not chdir around. * js/alias-early-config: alias: use the early config machinery to expand aliases t7006: demonstrate a problem with aliases in subdirectories t1308: relax the test verifying that empty alias values are disallowed help: use early config when autocorrecting aliases config: report correct line number upon error discover_git_directory(): avoid setting invalid git_dir
2017-06-21auto-correct: tweak phrasingLibravatar Marc Branchaud1-6/+12
When help.autoCorrect is enabled, an invalid git command prints a warning and a continuation message, which differs depending on whether or not the value of help.autoCorrect is positive or negative. With help.autoCorrect = 15: WARNING: You called a Git command named 'lgo', which does not exist. Continuing under the assumption that you meant 'log' in 1.5 seconds automatically... With help.autoCorrect < 0: WARNING: You called a Git command named 'lgo', which does not exist. Continuing under the assumption that you meant 'log' The continuation message's phrasing is awkward. This commit cleans it up. As a bonus, we now use full-sentence strings which make translation easier. With help.autoCorrect = 15: WARNING: You called a Git command named 'lgo', which does not exist. Continuing in 1.5 seconds, assuming that you meant 'log'. With help.autoCorrect < 0: WARNING: You called a Git command named 'lgo', which does not exist. Continuing under the assumption that you meant 'log'. Signed-off-by: Marc Branchaud <marcnarc@xiplink.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-19Merge branch 'jk/consistent-h'Libravatar Junio C Hamano1-5/+20
"git $cmd -h" for builtin commands calls the implementation of the command (i.e. cmd_$cmd() function) without doing any repository set-up, and the commands that expect RUN_SETUP is done by the Git potty needs to be prepared to show the help text without barfing. * jk/consistent-h: t0012: test "-h" with builtins git: add hidden --list-builtins option version: convert to parse-options diff- and log- family: handle "git cmd -h" early submodule--helper: show usage for "-h" remote-{ext,fd}: print usage message on invalid arguments upload-archive: handle "-h" option early credential: handle invalid arguments earlier
2017-06-16*.[ch] refactoring: make use of the FREE_AND_NULL() macroLibravatar Ævar Arnfjörð Bjarmason1-2/+1
Replace occurrences of `free(ptr); ptr = NULL` which weren't caught by the coccinelle rule. These fall into two categories: - free/NULL assignments one after the other which coccinelle all put on one line, which is functionally equivalent code, but very ugly. - manually spotted occurrences where the NULL assignment isn't right after the free() call. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15config: don't include config.h by defaultLibravatar Brandon Williams1-0/+1
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15help: use early config when autocorrecting aliasesLibravatar Johannes Schindelin1-1/+1
Git has this feature which suggests similar commands (including aliases) in case the user specified an unknown command. This feature currently relies on a side effect of the way we expand aliases right now: when a command is not a builtin, we use the regular config machinery (meaning: discovering the .git/ directory and initializing global state such as the config cache) to see whether the command refers to an alias. However, we will change the way aliases are expanded in the next commits, to use the early config instead. That means that the autocorrect feature can no longer discover the available aliases by looking at the config cache (because it has not yet been initialized). So let's just use the early config machinery instead. This is slightly less performant than the previous way, as the early config is used *twice*: once to see whether the command refers to an alias, and then to see what aliases are most similar. However, this is hardly a performance-critical code path, so performance is less important here. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-05version: convert to parse-optionsLibravatar Jeff King1-5/+20
The "git version" command didn't traditionally accept any options, and in fact ignores any you give it. When we added simple option parsing for "--build-options" in 6b9c38e14, we didn't improve this; we just loop over the arguments and pick out the one we recognize. Instead, let's move to a real parsing loop, complain about nonsense options, and recognize conventions like "-h". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30Merge branch 'bw/forking-and-threading'Libravatar Junio C Hamano1-42/+1
The "run-command" API implementation has been made more robust against dead-locking in a threaded environment. * bw/forking-and-threading: usage.c: drop set_error_handle() run-command: restrict PATH search to executable files run-command: expose is_executable function run-command: block signals between fork and execve run-command: add note about forking and threading run-command: handle dup2 and close errors in child run-command: eliminate calls to error handling functions in child run-command: don't die in child when duping /dev/null run-command: prepare child environment before forking string-list: add string_list_remove function run-command: use the async-signal-safe execv instead of execvp run-command: prepare command before forking t0061: run_command executes scripts without a #! line t5550: use write_script to generate post-update hook
2017-05-12usability: don't ask questions if no reply is requiredLibravatar Jean-Noel Avila1-2/+2
There has been a bug report by a corporate user that stated that "spelling mistake of stash followed by a yes prints character 'y' infinite times." This analysis was false. When the spelling of a command contains errors, the git program tries to help the user by providing candidates which are close to the unexisting command. E.g Git prints the following: git: 'stahs' is not a git command. See 'git --help'. Did you mean this? stash and then exits. The problem with this hint is that it is not formally indicated as an hint and the user is in fact encouraged to reply to the question, whereas the Git command is already finished. The user was unlucky enough that it was the command he was looking for, and replied "yes" on the command line, effectively launching the `yes` program. The initial error is that the Git programs, when launched in command-line mode (without interaction) must not ask questions, because these questions would normally require a user input as a reply that they won't handle indeed. That's a source of confusion on UX level. To improve the general usability of the Git suite, the following rule was applied: if the sentence * appears in a non-interactive session * is printed last before exit * is a question addressing the user ("you") the sentence is turned into affirmative and proposes the option. The basic rewording of the question sentences has been extended to other spots found in the source. Requested at https://github.com/git/git-scm.com/issues/999 by rpai1 Signed-off-by: Jean-Noel Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-25run-command: expose is_executable functionLibravatar Brandon Williams1-42/+1
Move the logic for 'is_executable()' from help.c to run_command.c and expose it so that callers from outside help.c can access the function. This is to enable run-command to be able to query if a file is executable in a future patch. Signed-off-by: Brandon Williams <bmwill@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-30help: improve is_executable() on WindowsLibravatar Heiko Voigt1-3/+18
On Windows, executables need to have the file extension `.exe`, or they are not executables. Hence, to support scripts, Git for Windows also looks for a she-bang line by opening the file in question, and executing it via the specified script interpreter. To figure out whether files in the `PATH` are executable, `git help` has code that imitates this behavior. With one exception: it *always* opens the files and looks for a she-bang line *or* an `MZ` tell-tale (nevermind that files with the magic `MZ` but without file extension `.exe` would still not be executable). Opening this many files leads to performance problems that are even more serious when a virus scanner is running. Therefore, let's change the code to look for the file extension `.exe` early, and avoid opening the file altogether if we already know that it is executable. See the following measurements (in seconds) as an example, where we execute a simple program that simply lists the directory contents and calls open() on every listed file: With virus scanner running (coldcache): $ ./a.exe /libexec/git-core/ before open (git-add.exe): 0.000000 after open (git-add.exe): 0.412873 before open (git-annotate.exe): 0.000175 after open (git-annotate.exe): 0.397925 before open (git-apply.exe): 0.000243 after open (git-apply.exe): 0.399996 before open (git-archive.exe): 0.000147 after open (git-archive.exe): 0.397783 before open (git-bisect--helper.exe): 0.000160 after open (git-bisect--helper.exe): 0.397700 before open (git-blame.exe): 0.000160 after open (git-blame.exe): 0.399136 ... With virus scanner running (hotcache): $ ./a.exe /libexec/git-core/ before open (git-add.exe): 0.000000 after open (git-add.exe): 0.000325 before open (git-annotate.exe): 0.000229 after open (git-annotate.exe): 0.000177 before open (git-apply.exe): 0.000167 after open (git-apply.exe): 0.000150 before open (git-archive.exe): 0.000154 after open (git-archive.exe): 0.000156 before open (git-bisect--helper.exe): 0.000132 after open (git-bisect--helper.exe): 0.000180 before open (git-blame.exe): 0.000718 after open (git-blame.exe): 0.000724 ... With this patch I get: $ time git help git Launching default browser to display HTML ... real 0m8.723s user 0m0.000s sys 0m0.000s and without $ time git help git Launching default browser to display HTML ... real 1m37.734s user 0m0.000s sys 0m0.031s both tests with cold cache and giving the machine some time to settle down after restart. [jes: adjusted the commit message] Signed-off-by: Heiko Voigt <heiko.voigt@mahr.de> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-29use QSORTLibravatar René Scharfe1-10/+5
Apply the semantic patch contrib/coccinelle/qsort.cocci to the code base, replacing calls of qsort(3) with QSORT. The resulting code is shorter and supports empty arrays with NULL pointers. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-15t0006: skip "far in the future" test when unsigned long is not long enoughLibravatar Jeff King1-0/+6
Git's source code refers to timestamps as unsigned longs. On 32-bit platforms, as well as on Windows, unsigned long is not large enough to capture dates that are "absurdly far in the future". While we can fix this issue properly by replacing unsigned long with a larger type, we want to be a bit more conservative and just skip those tests on the maint track. Signed-off-by: Jeff King <peff@peff.net> Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-22convert trivial cases to FLEX_ARRAY macrosLibravatar Jeff King1-4/+2
Using FLEX_ARRAY macros reduces the amount of manual computation size we have to do. It also ensures we don't overflow size_t, and it makes sure we write the same number of bytes that we allocated. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-24Merge branch 'js/sleep-without-select'Libravatar Junio C Hamano1-1/+1
Portability fix. * js/sleep-without-select: lockfile: wait using sleep_millisec() instead of select() lockfile: convert retry timeout computations to millisecond help.c: wrap wait-only poll() invocation in sleep_millisec() lockfile: replace random() by rand()
2015-06-05help.c: wrap wait-only poll() invocation in sleep_millisec()Libravatar Johannes Sixt1-1/+1
We want to use the new function elsewhere in a moment. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-05Merge branch 'bc/object-id'Libravatar Junio C Hamano1-1/+1
for_each_ref() callback functions were taught to name the objects not with "unsigned char sha1[20]" but with "struct object_id". * bc/object-id: (56 commits) struct ref_lock: convert old_sha1 member to object_id warn_if_dangling_symref(): convert local variable "junk" to object_id each_ref_fn_adapter(): remove adapter rev_list_insert_ref(): remove unneeded arguments rev_list_insert_ref_oid(): new function, taking an object_oid mark_complete(): remove unneeded arguments mark_complete_oid(): new function, taking an object_oid clear_marks(): rewrite to take an object_id argument mark_complete(): rewrite to take an object_id argument send_ref(): convert local variable "peeled" to object_id upload-pack: rewrite functions to take object_id arguments find_symref(): convert local variable "unused" to object_id find_symref(): rewrite to take an object_id argument write_one_ref(): rewrite to take an object_id argument write_refs_to_temp_dir(): convert local variable sha1 to object_id submodule: rewrite to take an object_id argument shallow: rewrite functions to take object_id arguments handle_one_ref(): rewrite to take an object_id argument add_info_ref(): rewrite to take an object_id argument handle_one_reflog(): rewrite to take an object_id argument ...
2015-05-25append_similar_ref(): rewrite to take an object_id argumentLibravatar Michael Haggerty1-4/+2
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25each_ref_fn: change to take an object_id parameterLibravatar Michael Haggerty1-1/+3
Change typedef each_ref_fn to take a "const struct object_id *oid" parameter instead of "const unsigned char *sha1". To aid this transition, implement an adapter that can be used to wrap old-style functions matching the old typedef, which is now called "each_ref_sha1_fn"), and make such functions callable via the new interface. This requires the old function and its cb_data to be wrapped in a "struct each_ref_fn_sha1_adapter", and that object to be used as the cb_data for an adapter function, each_ref_fn_adapter(). This is an enormous diff, but most of it consists of simple, mechanical changes to the sites that call any of the "for_each_ref" family of functions. Subsequent to this change, the call sites can be rewritten one by one to use the new interface. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-21help: respect new common command groupingLibravatar Sébastien Guimmara1-1/+23
'git help' shows common commands in alphabetical order: The most commonly used git commands are: add Add file contents to the index bisect Find by binary search the change that introduced a bug branch List, create, or delete branches checkout Checkout a branch or paths to the working tree clone Clone a repository into a new directory commit Record changes to the repository [...] without any indication of how commands relate to high-level concepts or each other. Revise the output to explain their relationship with the typical Git workflow: These are common Git commands used in various situations: start a working area (see also: git help tutorial) clone Clone a repository into a new directory init Create an empty Git repository or reinitialize [...] work on the current change (see also: git help everyday) add Add file contents to the index reset Reset current HEAD to the specified state examine the history and state (see also: git help revisions) log Show commit logs status Show the working tree status [...] Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Sébastien Guimmara <sebastien.guimmara@gmail.com> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-26Merge branch 'sb/help-unknown-command-sort-fix'Libravatar Junio C Hamano1-1/+1
Code cleanup. * sb/help-unknown-command-sort-fix: help: fix the size passed to qsort
2014-09-18help: fix the size passed to qsortLibravatar Stefan Beller1-1/+1
We actually want to have the size of one 'name' and not the size of the pointer. Signed-off-by: Stefan Beller <stefanbeller@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-16Merge branch 'jk/strip-suffix'Libravatar Junio C Hamano1-3/+2
* jk/strip-suffix: prepare_packed_git_one: refactor duplicate-pack check verify-pack: use strbuf_strip_suffix strbuf: implement strbuf_strip_suffix index-pack: use strip_suffix to avoid magic numbers use strip_suffix instead of ends_with in simple cases replace has_extension with ends_with implement ends_with via strip_suffix add strip_suffix function sha1_file: replace PATH_MAX buffer with strbuf in prepare_packed_git_one()
2014-06-30use strip_suffix instead of ends_with in simple casesLibravatar Jeff King1-3/+2
When stripping a suffix like: if (ends_with(str, "foo")) buf = xmemdupz(str, strlen(str) - 3); we can instead use strip_suffix to avoid the constant 3, which must match the literal "foo" (we sometimes use strlen("foo") instead, but that means we are repeating ourselves). The example above becomes: if (strip_suffix(str, "foo", &len)) buf = xmemdupz(str, len); This also saves a strlen(), since we calculate the string length when detecting the suffix. Note that in some cases we also switch from xstrndup to xmemdupz, which saves a further strlen call. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-30replace has_extension with ends_withLibravatar Jeff King1-1/+1
These two are almost the same function, with the exception that has_extension only matches if there is content before the suffix. So ends_with(".exe", ".exe") is true, but has_extension would not be. This distinction does not matter to any of the callers, though, and we can just replace uses of has_extension with ends_with. We prefer the "ends_with" name because it is more generic, and there is nothing about the function that requires it to be used for file extensions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-20use skip_prefix to avoid repeated calculationsLibravatar Jeff King1-6/+5
In some cases, we use starts_with to check for a prefix, and then use an already-calculated prefix length to advance a pointer past the prefix. There are no magic numbers or duplicated strings here, but we can still make the code simpler and more obvious by using skip_prefix. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-20use skip_prefix to avoid repeating stringsLibravatar Jeff King1-3/+4
It's a common idiom to match a prefix and then skip past it with strlen, like: if (starts_with(foo, "bar")) foo += strlen("bar"); This avoids magic numbers, but means we have to repeat the string (and there is no compiler check that we didn't make a typo in one of the strings). We can use skip_prefix to handle this case without repeating ourselves. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-20use skip_prefix to avoid magic numbersLibravatar Jeff King1-2/+4
It's a common idiom to match a prefix and then skip past it with a magic number, like: if (starts_with(foo, "bar")) foo += 3; This is easy to get wrong, since you have to count the prefix string yourself, and there's no compiler check if the string changes. We can use skip_prefix to avoid the magic numbers here. Note that some of these conversions could be much shorter. For example: if (starts_with(arg, "--foo=")) { bar = arg + 6; continue; } could become: if (skip_prefix(arg, "--foo=", &bar)) continue; However, I have left it as: if (skip_prefix(arg, "--foo=", &v)) { bar = v; continue; } to visually match nearby cases which need to actually process the string. Like: if (skip_prefix(arg, "--foo=", &v)) { bar = atoi(v); continue; } Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-14Merge branch 'rt/help-pretty-prints-cmd-names'Libravatar Junio C Hamano1-4/+3
* rt/help-pretty-prints-cmd-names: help.c: rename function "pretty_print_string_list"
2014-02-28help.c: rename function "pretty_print_string_list"Libravatar Ralf Thielow1-4/+3
The part "string_list" of the name of function "pretty_print_string_list" is just an implementation detail. The function pretty-prints command names so rename it to "pretty_print_cmdnames". Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-05replace {pre,suf}fixcmp() with {starts,ends}_with()Libravatar Christian Couder1-4/+4
Leaving only the function definitions and declarations so that any new topic in flight can still make use of the old functions, replace existing uses of the prefixcmp() and suffixcmp() with new API functions. The change can be recreated by mechanically applying this: $ git grep -l -e prefixcmp -e suffixcmp -- \*.c | grep -v strbuf\\.c | xargs perl -pi -e ' s|!prefixcmp\(|starts_with\(|g; s|prefixcmp\(|!starts_with\(|g; s|!suffixcmp\(|ends_with\(|g; s|suffixcmp\(|!ends_with\(|g; ' on the result of preparatory changes in this series. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-18cygwin: Remove the Win32 l/stat() implementationLibravatar Ramsay Jones1-4/+1
Commit adbc0b6b ("cygwin: Use native Win32 API for stat", 30-09-2008) added a Win32 specific implementation of the stat functions. In order to handle absolute paths, cygwin mount points and symbolic links, this implementation may fall back on the standard cygwin l/stat() functions. Also, the choice of cygwin or Win32 functions is made lazily (by the first call(s) to l/stat) based on the state of some config variables. Unfortunately, this "schizophrenic stat" implementation has been the source of many problems ever since. For example, see commits 7faee6b8, 79748439, 452993c2, 085479e7, b8a97333, 924aaf3e, 05bab3ea and 0117c2f0. In order to avoid further problems, such as the issue raised by the new reference handling API, remove the Win32 l/stat() implementation. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-11Merge branch 'rj/mingw-cygwin'Libravatar Junio C Hamano1-1/+1
Update build for Cygwin 1.[57]. Torsten Bögershausen reports that this is fine with Cygwin 1.7 ($gmane/225824) so let's try moving it ahead. * rj/mingw-cygwin: cygwin: Remove the CYGWIN_V15_WIN32API build variable mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
2013-05-08help: add help_unknown_ref()Libravatar Vikrant Varma1-0/+50
When the user gives an unknown string to a command that expects to get a ref, we could be more helpful than just saying "that's not a ref" and die. Add helper function help_unknown_ref() to take care of displaying an error message along with a list of suggested refs the user might have meant. An interaction with "git merge" might go like this: $ git merge foo merge: foo - not something we can merge Did you mean one of these? origin/foo upstream/foo Signed-off-by: Vikrant Varma <vikrant.varma94@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVELibravatar Jonathan Nieder1-1/+1
Throughout git, it is assumed that the WIN32 preprocessor symbol is defined on native Windows setups (mingw and msvc) and not on Cygwin. On Cygwin, most of the time git can pretend this is just another Unix machine, and Windows-specific magic is generally counterproductive. Unfortunately Cygwin *does* define the WIN32 symbol in some headers. Best to rely on a new git-specific symbol GIT_WINDOWS_NATIVE instead, defined as follows: #if defined(WIN32) && !defined(__CYGWIN__) # define GIT_WINDOWS_NATIVE #endif After this change, it should be possible to drop the CYGWIN_V15_WIN32API setting without any negative effect. [rj: %s/WINDOWS_NATIVE/GIT_WINDOWS_NATIVE/g ] Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>