diff options
Diffstat (limited to 'toys/patch.c')
| -rw-r--r-- | toys/patch.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/toys/patch.c b/toys/patch.c index 2f1db0ec..53be2631 100644 --- a/toys/patch.c +++ b/toys/patch.c @@ -1,13 +1,11 @@ -/* vi: set sw=4 ts=4: */ -/* +/* vi: set sw=4 ts=4: + * * patch.c - Apply a "universal" diff. * - * SUSv3 at http://www.opengroup.org/onlinepubs/009695399/utilities/patch.html - * but who cares about "ed"? + * Copyright 2007 Rob Landley <rob@landley.net> * - * -u ignored - * -R reverse (remove applied hunks, apply removed hunks) - * -p num remove this many slashes from start of path (default = all) + * see http://www.opengroup.org/onlinepubs/009695399/utilities/patch.html + * (But only does -u, because who still cares about "ed"?) * * TODO: * -b backup @@ -15,7 +13,6 @@ * -N ignore already applied * -d chdir first * -D define wrap #ifdef and #ifndef around changes - * -i patchfile apply patch from filename rather than stdin * -o outfile output here instead of in place * -r rejectfile write rejected hunks to this file * @@ -23,7 +20,26 @@ * -f force (no questions asked) * -F fuzz (number, default 2) * [file] which file to patch - */ + +config PATCH + bool "patch" + default y + help + usage: patch [-i file] [-p depth] [-Ru] + + Apply a unified diff to one or more files. + + -i Input file (defaults=stdin) + -p number of '/' to strip from start of file paths (default=all) + -R Reverse patch. + -u Ignored (only handles "unified" diffs) + + This version of patch only handles unified diffs, and only modifies + a file when all all hunks to that file apply. Patch prints failed + hunks to stderr, and exits with nonzero status if any hunks fail. + + A file compared against /dev/null is created/deleted as appropriate. +*/ #include "toys.h" |