thodg/libgit2/tests-clar/submodule/submodule_helpers.c

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• Hash : aa13bf05
  Author :
  Date : 2012-08-02T13:00:58
  

  Major submodule rewrite This replaces the old submodule API with a new extended API that supports most of the things that can be done with `git submodule`.

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• tests-clar/submodule/submodule_helpers.c

• #include "clar_libgit2.h"
  #include "buffer.h"
  #include "path.h"
  #include "util.h"
  #include "posix.h"
  #include "submodule_helpers.h"
  
  /* rewrite gitmodules -> .gitmodules
   * rewrite the empty or relative urls inside each module
   * rename the .gitted directory inside any submodule to .git
   */
  void rewrite_gitmodules(const char *workdir)
  {
  	git_buf in_f = GIT_BUF_INIT, out_f = GIT_BUF_INIT, path = GIT_BUF_INIT;
  	FILE *in, *out;
  	char line[256];
  
  	cl_git_pass(git_buf_joinpath(&in_f, workdir, "gitmodules"));
  	cl_git_pass(git_buf_joinpath(&out_f, workdir, ".gitmodules"));
  
  	cl_assert((in  = fopen(in_f.ptr, "r")) != NULL);
  	cl_assert((out = fopen(out_f.ptr, "w")) != NULL);
  
  	while (fgets(line, sizeof(line), in) != NULL) {
  		char *scan = line;
  
  		while (*scan == ' ' || *scan == '\t') scan++;
  
  		/* rename .gitted -> .git in submodule directories */
  		if (git__prefixcmp(scan, "path =") == 0) {
  			scan += strlen("path =");
  			while (*scan == ' ') scan++;
  
  			git_buf_joinpath(&path, workdir, scan);
  			git_buf_rtrim(&path);
  			git_buf_joinpath(&path, path.ptr, ".gitted");
  
  			if (!git_buf_oom(&path) && p_access(path.ptr, F_OK) == 0) {
  				git_buf_joinpath(&out_f, workdir, scan);
  				git_buf_rtrim(&out_f);
  				git_buf_joinpath(&out_f, out_f.ptr, ".git");
  
  				if (!git_buf_oom(&out_f))
  					p_rename(path.ptr, out_f.ptr);
  			}
  		}
  
  		/* copy non-"url =" lines verbatim */
  		if (git__prefixcmp(scan, "url =") != 0) {
  			fputs(line, out);
  			continue;
  		}
  
  		/* convert relative URLs in "url =" lines */
  		scan += strlen("url =");
  		while (*scan == ' ') scan++;
  
  		if (*scan == '.') {
  			git_buf_joinpath(&path, workdir, scan);
  			git_buf_rtrim(&path);
  		} else if (!*scan || *scan == '\n') {
  			git_buf_joinpath(&path, workdir, "../testrepo.git");
  		} else {
  			fputs(line, out);
  			continue;
  		}
  
  		git_path_prettify(&path, path.ptr, NULL);
  		git_buf_putc(&path, '\n');
  		cl_assert(!git_buf_oom(&path));
  
  		fwrite(line, scan - line, sizeof(char), out);
  		fputs(path.ptr, out);
  	}
  
  	fclose(in);
  	fclose(out);
  
  	cl_must_pass(p_unlink(in_f.ptr));
  
  	git_buf_free(&in_f);
  	git_buf_free(&out_f);
  	git_buf_free(&path);
  }
  

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