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Diffstat (limited to 'Lib/lib-old/dircmp.py')
| -rw-r--r-- | Lib/lib-old/dircmp.py | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/Lib/lib-old/dircmp.py b/Lib/lib-old/dircmp.py deleted file mode 100644 index 1e7bf2a..0000000 --- a/Lib/lib-old/dircmp.py +++ /dev/null @@ -1,202 +0,0 @@ -"""A class to build directory diff tools on.""" - -import os - -import dircache -import cmpcache -import statcache -from stat import * - -class dircmp: - """Directory comparison class.""" - - def new(self, a, b): - """Initialize.""" - self.a = a - self.b = b - # Properties that caller may change before calling self.run(): - self.hide = [os.curdir, os.pardir] # Names never to be shown - self.ignore = ['RCS', 'tags'] # Names ignored in comparison - - return self - - def run(self): - """Compare everything except common subdirectories.""" - self.a_list = filter(dircache.listdir(self.a), self.hide) - self.b_list = filter(dircache.listdir(self.b), self.hide) - self.a_list.sort() - self.b_list.sort() - self.phase1() - self.phase2() - self.phase3() - - def phase1(self): - """Compute common names.""" - self.a_only = [] - self.common = [] - for x in self.a_list: - if x in self.b_list: - self.common.append(x) - else: - self.a_only.append(x) - - self.b_only = [] - for x in self.b_list: - if x not in self.common: - self.b_only.append(x) - - def phase2(self): - """Distinguish files, directories, funnies.""" - self.common_dirs = [] - self.common_files = [] - self.common_funny = [] - - for x in self.common: - a_path = os.path.join(self.a, x) - b_path = os.path.join(self.b, x) - - ok = 1 - try: - a_stat = statcache.stat(a_path) - except os.error, why: - # print 'Can\'t stat', a_path, ':', why[1] - ok = 0 - try: - b_stat = statcache.stat(b_path) - except os.error, why: - # print 'Can\'t stat', b_path, ':', why[1] - ok = 0 - - if ok: - a_type = S_IFMT(a_stat[ST_MODE]) - b_type = S_IFMT(b_stat[ST_MODE]) - if a_type != b_type: - self.common_funny.append(x) - elif S_ISDIR(a_type): - self.common_dirs.append(x) - elif S_ISREG(a_type): - self.common_files.append(x) - else: - self.common_funny.append(x) - else: - self.common_funny.append(x) - - def phase3(self): - """Find out differences between common files.""" - xx = cmpfiles(self.a, self.b, self.common_files) - self.same_files, self.diff_files, self.funny_files = xx - - def phase4(self): - """Find out differences between common subdirectories. - A new dircmp object is created for each common subdirectory, - these are stored in a dictionary indexed by filename. - The hide and ignore properties are inherited from the parent.""" - self.subdirs = {} - for x in self.common_dirs: - a_x = os.path.join(self.a, x) - b_x = os.path.join(self.b, x) - self.subdirs[x] = newdd = dircmp().new(a_x, b_x) - newdd.hide = self.hide - newdd.ignore = self.ignore - newdd.run() - - def phase4_closure(self): - """Recursively call phase4() on subdirectories.""" - self.phase4() - for x in self.subdirs.keys(): - self.subdirs[x].phase4_closure() - - def report(self): - """Print a report on the differences between a and b.""" - # Assume that phases 1 to 3 have been executed - # Output format is purposely lousy - print 'diff', self.a, self.b - if self.a_only: - print 'Only in', self.a, ':', self.a_only - if self.b_only: - print 'Only in', self.b, ':', self.b_only - if self.same_files: - print 'Identical files :', self.same_files - if self.diff_files: - print 'Differing files :', self.diff_files - if self.funny_files: - print 'Trouble with common files :', self.funny_files - if self.common_dirs: - print 'Common subdirectories :', self.common_dirs - if self.common_funny: - print 'Common funny cases :', self.common_funny - - def report_closure(self): - """Print reports on self and on subdirs. - If phase 4 hasn't been done, no subdir reports are printed.""" - self.report() - try: - x = self.subdirs - except AttributeError: - return # No subdirectories computed - for x in self.subdirs.keys(): - print - self.subdirs[x].report_closure() - - def report_phase4_closure(self): - """Report and do phase 4 recursively.""" - self.report() - self.phase4() - for x in self.subdirs.keys(): - print - self.subdirs[x].report_phase4_closure() - - -def cmpfiles(a, b, common): - """Compare common files in two directories. - Return: - - files that compare equal - - files that compare different - - funny cases (can't stat etc.)""" - - res = ([], [], []) - for x in common: - res[cmp(os.path.join(a, x), os.path.join(b, x))].append(x) - return res - - -def cmp(a, b): - """Compare two files. - Return: - 0 for equal - 1 for different - 2 for funny cases (can't stat, etc.)""" - - try: - if cmpcache.cmp(a, b): return 0 - return 1 - except os.error: - return 2 - - -def filter(list, skip): - """Return a copy with items that occur in skip removed.""" - - result = [] - for item in list: - if item not in skip: result.append(item) - return result - - -def demo(): - """Demonstration and testing.""" - - import sys - import getopt - options, args = getopt.getopt(sys.argv[1:], 'r') - if len(args) != 2: - raise getopt.error, 'need exactly two args' - dd = dircmp().new(args[0], args[1]) - dd.run() - if ('-r', '') in options: - dd.report_phase4_closure() - else: - dd.report() - -if __name__ == "__main__": - demo() |