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We should search git programs only in the highest-priority location. The old code added the directories "argv_exec_path", "getenv(EXEC_PATH_ENVIRONMENT)", and "system_path(GIT_EXEC_PATH)" to PATH. The same order is implemented in git_exec_path(), which returns the highest priority location to search for executables. If the user explicitly overrides the default location (by --exec-path or GIT_EXEC_PATH) we can expect that all the required programs are there. It does not make sense that only some of the required programs are located at the highest priority location and other programs are picked up from a lower priority exec-path. If exec-path is overridden a complete set of commands should be provided, otherwise several different versions might easily get mixed, which is likely to spread confusion. Accessing the location with highest priority only is also required for testing of executables built with RUNTIME_PREFIX. Calling system_path(GIT_EXEC_PATH) is avoided if a higher-priority location is provided, which is the case for the tests. The call to system_path() must be avoided, if RUNTIME_PREFIX is set, because the call would fail if the executable is not installed at its final destination. But we test before installing.
//////////////////////////////////////////////////////////////// GIT - the stupid content tracker //////////////////////////////////////////////////////////////// "git" can mean anything, depending on your mood. - random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant. - stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang. - "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room. - "goddamn idiotic truckload of sh*t": when it breaks Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. Git is an Open Source project covered by the GNU General Public License. It was originally written by Linus Torvalds with help of a group of hackers around the net. It is currently maintained by Junio C Hamano. Please read the file INSTALL for installation instructions. See Documentation/tutorial.txt to get started, then see Documentation/everyday.txt for a useful minimum set of commands, and "man git-commandname" for documentation of each command. CVS users may also want to read Documentation/cvs-migration.txt. Many Git online resources are accessible from http://git.or.cz/ including full documentation and Git related tools. The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org. To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at http://marc.theaimsgroup.com/?l=git and other archival sites. The messages titled "A note from the maintainer", "What's in git.git (stable)" and "What's cooking in git.git (topics)" and the discussion following them on the mailing list give a good reference for project status, development direction and remaining tasks.