diff options
Diffstat (limited to 'src/cmd/go/help.go')
| -rw-r--r-- | src/cmd/go/help.go | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/src/cmd/go/help.go b/src/cmd/go/help.go index 71e55175a..40da7e1f5 100644 --- a/src/cmd/go/help.go +++ b/src/cmd/go/help.go @@ -19,8 +19,8 @@ http://swig.org/. When running go build, any file with a .swig extension will be passed to SWIG. Any file with a .swigcxx extension will be passed to SWIG with the -c++ option. -When either cgo or SWIG is used, go build will pass any .c, .s, or .S -files to the C compiler, and any .cc, .cpp, .cxx files to the C++ +When either cgo or SWIG is used, go build will pass any .c, .m, .s, +or .S files to the C compiler, and any .cc, .cpp, .cxx files to the C++ compiler. The CC or CXX environment variables may be set to determine the C or C++ compiler, respectively, to use. `, @@ -182,7 +182,7 @@ example.org/user/foo or foo.hg, and import "example.org/repo.git/foo/bar" denotes the foo/bar directory of the Git repository at -example.com/repo or repo.git. +example.org/repo or repo.git. When a version control system supports multiple protocols, each is tried in turn when downloading. For example, a Git @@ -295,3 +295,43 @@ but new packages are always downloaded into the first directory in the list. `, } + +var helpFileType = &Command{ + UsageLine: "filetype", + Short: "file types", + Long: ` +The go command examines the contents of a restricted set of files +in each directory. It identifies which files to examine based on +the extension of the file name. These extensions are: + + .go + Go source files. + .c, .h + C source files. + If the package uses cgo, these will be compiled with the + OS-native compiler (typically gcc); otherwise they will be + compiled with the Go-specific support compiler, + 5c, 6c, or 8c, etc. as appropriate. + .cc, .cpp, .cxx, .hh, .hpp, .hxx + C++ source files. Only useful with cgo or SWIG, and always + compiled with the OS-native compiler. + .m + Objective-C source files. Only useful with cgo, and always + compiled with the OS-native compiler. + .s, .S + Assembler source files. + If the package uses cgo, these will be assembled with the + OS-native assembler (typically gcc (sic)); otherwise they + will be assembled with the Go-specific support assembler, + 5a, 6a, or 8a, etc., as appropriate. + .swig, .swigcxx + SWIG definition files. + .syso + System object files. + +Files of each of these types except .syso may contain build +constraints, but the go command stops scanning for build constraints +at the first item in the file that is not a blank line or //-style +line comment. + `, +} |