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/* |
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instrument.c - file and directory instrumentation routines |
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Copyright (C) 2007, 2008 siliconforks.com |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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|
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#include "instrument.h" |
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|
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#include <assert.h> |
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#include <errno.h> |
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#include <string.h> |
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|
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#include <dirent.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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|
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#include "instrument-js.h" |
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#include "resource-manager.h" |
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#include "util.h" |
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|
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static int g_verbose = 0; |
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|
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static int string_ends_with(const char * s, const char * suffix) { |
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size_t length = strlen(s); |
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size_t suffix_length = strlen(suffix); |
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if (length < suffix_length) { |
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return 0; |
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} |
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return strcasecmp(s + (length - suffix_length), suffix) == 0; |
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} |
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|
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static enum FileType get_file_type(const char * file) { |
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if (string_ends_with(file, ".js")) { |
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return FILE_TYPE_JS; |
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} |
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else if (string_ends_with(file, ".html") || string_ends_with(file, ".htm")) { |
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return FILE_TYPE_HTML; |
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} |
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else { |
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return FILE_TYPE_UNKNOWN; |
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} |
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} |
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|
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static void check_same_file(const char * file1, const char * file2) { |
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if (is_same_file(file1, file2)) { |
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fatal("source and destination are the same"); |
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} |
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} |
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|
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static void check_contains_file(const char * file1, const char * file2) { |
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if (contains_file(file1, file2)) { |
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fatal("%s contains %s", file1, file2); |
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} |
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} |
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|
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static void instrument_file(const char * source_file, const char * destination_file, const char * id, int instrumenting) { |
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if (g_verbose) { |
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printf("Instrumenting file %s\n", id); |
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} |
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|
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/* check if they are the same */ |
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char * canonical_source_file = make_canonical_path(source_file); |
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char * canonical_destination_file = make_canonical_path(destination_file); |
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check_same_file(canonical_source_file, canonical_destination_file); |
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free(canonical_source_file); |
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free(canonical_destination_file); |
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|
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if (instrumenting) { |
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enum FileType file_type = get_file_type(source_file); |
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switch (file_type) { |
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case FILE_TYPE_UNKNOWN: |
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case FILE_TYPE_HTML: |
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copy_file(source_file, destination_file); |
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break; |
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case FILE_TYPE_JS: |
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{ |
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FILE * input = xfopen(source_file, "r"); |
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FILE * output = xfopen(destination_file, "w"); |
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|
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Stream * input_stream = Stream_new(0); |
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Stream * output_stream = Stream_new(0); |
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|
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Stream_write_file_contents(input_stream, input); |
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|
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jscoverage_instrument_js(id, input_stream, output_stream); |
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|
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if (fwrite(output_stream->data, 1, output_stream->length, output) != output_stream->length) { |
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fatal("cannot write to file: %s", destination_file); |
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} |
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|
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Stream_delete(input_stream); |
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Stream_delete(output_stream); |
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|
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fclose(input); |
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fclose(output); |
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} |
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break; |
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} |
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} |
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else { |
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copy_file(source_file, destination_file); |
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} |
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} |
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|
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void jscoverage_instrument(const char * source, |
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const char * destination, |
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int verbose, |
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char ** exclude, |
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int num_exclude, |
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char ** no_instrument, |
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int num_no_instrument) |
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{ |
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assert(source != NULL); |
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assert(destination != NULL); |
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|
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g_verbose = verbose; |
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|
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/* check if they are the same */ |
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check_same_file(source, destination); |
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|
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/* check if source directory is an ancestor of destination directory */ |
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check_contains_file(source, destination); |
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|
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/* check that the source exists and is a directory */ |
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struct stat buf; |
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xstat(source, &buf); |
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if (! S_ISDIR(buf.st_mode)) { |
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fatal("not a directory: %s", source); |
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} |
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|
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/* if the destination directory exists, check that it is a jscoverage directory */ |
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if (stat(destination, &buf) == 0) { |
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/* it exists */ |
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if (! S_ISDIR(buf.st_mode)) { |
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fatal("not a directory: %s", destination); |
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} |
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if (! directory_is_empty(destination)) { |
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char * jscoverage_html = make_path(destination, "jscoverage.html"); |
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if (stat(jscoverage_html, &buf) == -1) { |
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fatal("refusing to overwrite directory: %s", destination); |
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} |
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free(jscoverage_html); |
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} |
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} |
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else if (errno == ENOENT) { |
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xmkdir(destination); |
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} |
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else { |
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fatal("cannot stat directory: %s", destination); |
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} |
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|
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/* copy the resources */ |
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jscoverage_copy_resources(destination); |
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|
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/* finally: copy the directory */ |
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struct DirListEntry * list = make_recursive_dir_list(source); |
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for (struct DirListEntry * p = list; p != NULL; p = p->next) { |
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char * s = make_path(source, p->name); |
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char * d = make_path(destination, p->name); |
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|
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/* check if it's on the exclude list */ |
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for (int i = 0; i < num_exclude; i++) { |
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char * x = make_path(source, exclude[i]); |
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if (is_same_file(x, s) || contains_file(x, s)) { |
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free(x); |
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goto cleanup; |
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} |
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free(x); |
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} |
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|
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char * dd = make_dirname(d); |
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mkdirs(dd); |
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free(dd); |
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|
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int instrument_this = 1; |
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|
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/* check if it's on the no-instrument list */ |
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for (int i = 0; i < num_no_instrument; i++) { |
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char * ni = make_path(source, no_instrument[i]); |
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if (is_same_file(ni, s) || contains_file(ni, s)) { |
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instrument_this = 0; |
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} |
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free(ni); |
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} |
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|
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instrument_file(s, d, p->name, instrument_this); |
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|
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cleanup: |
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free(s); |
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free(d); |
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} |
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free_dir_list(list); |
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} |
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|
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void jscoverage_copy_resources(const char * destination_directory) { |
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copy_resource("jscoverage.html", destination_directory); |
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copy_resource("jscoverage.css", destination_directory); |
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copy_resource("jscoverage.js", destination_directory); |
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copy_resource("jscoverage-throbber.gif", destination_directory); |
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copy_resource("jscoverage-sh_main.js", destination_directory); |
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copy_resource("jscoverage-sh_javascript.js", destination_directory); |
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copy_resource("jscoverage-sh_nedit.css", destination_directory); |
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} |
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