diff options
Diffstat (limited to 'usr.bin/patch/patch.1')
-rw-r--r-- | usr.bin/patch/patch.1 | 142 |
1 files changed, 90 insertions, 52 deletions
diff --git a/usr.bin/patch/patch.1 b/usr.bin/patch/patch.1 index 9d12b8b12bd..feba068130c 100644 --- a/usr.bin/patch/patch.1 +++ b/usr.bin/patch/patch.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: patch.1,v 1.17 2003/10/31 20:20:45 millert Exp $ +.\" $OpenBSD: patch.1,v 1.18 2007/04/18 21:52:24 sobrado Exp $ .\" Copyright 1986, Larry Wall .\" .\" Redistribution and use in source and binary forms, with or without @@ -27,8 +27,22 @@ .Nd apply a diff file to an original .Sh SYNOPSIS .Nm patch -.Op Cm options +.Bk -words +.Op Fl bCcEeflNnRstuv +.Op Fl B Ar backup-prefix +.Op Fl D Ar symbol +.Op Fl d Ar directory +.Op Fl F Ar max-fuzz +.Op Fl i Ar patchfile +.Op Fl o Ar out-file +.Op Fl p Ar strip-count +.Op Fl r Ar rej-name +.Op Fl V Cm t | nil | never +.Op Fl x Ar number +.Op Fl z Ar backup-ext +.Op Fl Fl posix .Op Ar origfile Op Ar patchfile +.Ek .Nm patch .Pf \*(Lt Ar patchfile .Sh DESCRIPTION @@ -71,6 +85,15 @@ below). .Pp The options are as follows: .Bl -tag -width Ds +.It Xo +.Fl B Ar backup-prefix , +.Fl Fl prefix Ar backup-prefix +.Xc +Causes the next argument to be interpreted as a prefix to the backup file +name. +If this argument is specified, any argument to +.Fl z +will be ignored. .It Fl b , Fl Fl backup Save a backup copy of the file before it is modified. By default the original file is saved with a backup extension of @@ -78,27 +101,18 @@ By default the original file is saved with a backup extension of unless the file already has a numbered backup, in which case a numbered backup is made. This is equivalent to specifying -.Qo Fl V Ar existing Qc . +.Qo Fl V Cm existing Qc . This option is currently the default but that will change in a future release. -.It Fl B , Fl Fl prefix -Causes the next argument to be interpreted as a prefix to the backup file -name. -If this argument is specified, any argument to -.Fl z -will be ignored. +.It Fl C , Fl Fl check +Checks that the patch would apply cleanly, but does not modify anything. .It Fl c , Fl Fl context Forces .Nm to interpret the patch file as a context diff. -.It Fl C , Fl Fl check -Checks that the patch would apply cleanly, but does not modify anything. -.It Fl d , Fl Fl directory -Causes -.Nm -to interpret the next argument as a directory, and -.Xr cd 1 -to it before doing anything else. -.It Fl D , Fl Fl ifdef +.It Xo +.Fl D Ar symbol , +.Fl Fl ifdef Ar symbol +.Xc Causes .Nm to use the @@ -108,17 +122,37 @@ The argument following will be used as the differentiating symbol. Note that, unlike the C compiler, there must be a space between the .Fl D and the argument. +.It Xo +.Fl d Ar directory , +.Fl Fl directory Ar directory +.Xc +Causes +.Nm +to interpret the next argument as a directory, and +.Xr cd 1 +to it before doing anything else. +.It Fl E , Fl Fl remove-empty-files +Causes +.Nm +to remove output files that are empty after the patches have been applied. +This option is useful when applying patches that create or remove files. .It Fl e , Fl Fl ed Forces .Nm to interpret the patch file as an .Xr ed 1 script. -.It Fl E , Fl Fl remove-empty-files -Causes +.It Xo +.Fl F Ar max-fuzz , +.Fl Fl fuzz Ar max-fuzz +.Xc +Sets the maximum fuzz factor. +This option only applies to context diffs, and causes .Nm -to remove output files that are empty after the patches have been applied. -This option is useful when applying patches that create or remove files. +to ignore up to that many lines in looking for places to install a hunk. +Note that a larger fuzz factor increases the odds of a faulty patch. +The default fuzz factor is 2, and it may not be set to more than +the number of lines of context in the context diff, ordinarily 3. .It Fl f , Fl Fl force Forces .Nm @@ -134,17 +168,9 @@ This option does not suppress commentary; use .Fl s for that. .It Xo -.Fl F Ns Aq Ar number , -.Fl Fl fuzz Aq Ar number +.Fl i Ar patchfile , +.Fl Fl input Ar patchfile .Xc -Sets the maximum fuzz factor. -This option only applies to context diffs, and causes -.Nm -to ignore up to that many lines in looking for places to install a hunk. -Note that a larger fuzz factor increases the odds of a faulty patch. -The default fuzz factor is 2, and it may not be set to more than -the number of lines of context in the context diff, ordinarily 3. -.It Fl i , Fl Fl input Causes the next argument to be interpreted as the input file name (i.e. a patchfile). This option may be specified multiple times. @@ -155,21 +181,24 @@ Any sequence of whitespace in the pattern line will match any sequence in the input file. Normal characters must still match exactly. Each line of the context must still match a line in the input file. -.It Fl n , Fl Fl normal -Forces -.Nm -to interpret the patch file as a normal diff. .It Fl N , Fl Fl forward Causes .Nm to ignore patches that it thinks are reversed or already applied. See also .Fl R . -.It Fl o , Fl Fl output +.It Fl n , Fl Fl normal +Forces +.Nm +to interpret the patch file as a normal diff. +.It Xo +.Fl o Ar out-file , +.Fl Fl output Ar out-file +.Xc Causes the next argument to be interpreted as the output file name. .It Xo -.Fl p Ns Aq Ar number , -.Fl Fl strip Aq Ar number +.Fl p Ar strip-count , +.Fl Fl strip Ar strip-count .Xc Sets the pathname strip count, which controls how pathnames found in the patch file are treated, @@ -209,8 +238,6 @@ Whatever you end up with is looked for either in the current directory, or the directory specified by the .Fl d option. -.It Fl r , Fl Fl reject-file -Causes the next argument to be interpreted as the reject file name. .It Fl R , Fl Fl reverse Tells .Nm @@ -240,6 +267,11 @@ Luckily, most patches add or change lines rather than delete them, so most reversed normal diffs will begin with a delete, which will fail, triggering the heuristic.) .It Xo +.Fl r Ar rej-name , +.Fl Fl reject-file Ar rej-name +.Xc +Causes the next argument to be interpreted as the reject file name. +.It Xo .Fl s , Fl Fl quiet , .Fl Fl silent .Xc @@ -260,11 +292,10 @@ and assume that patches are reversed if they look like they are. Forces .Nm to interpret the patch file as a unified context diff (a unidiff). -.It Fl v , Fl Fl version -Causes -.Nm -to print out its revision header and patch level. -.It Fl V , Fl Fl version-control +.It Xo +.Fl V Cm t | nil | never , +.Fl Fl version-control Cm t | nil | never +.Xc Causes the next argument to be interpreted as a method for creating backup file names. The type of backups made can also be given in the @@ -287,22 +318,29 @@ option are like the GNU Emacs variable; they also recognize synonyms that are more descriptive. The valid values are (unique abbreviations are accepted): .Bl -tag -width Ds -offset indent -.It t , numbered +.It Cm t , numbered Always make numbered backups. -.It nil , existing +.It Cm nil , existing Make numbered backups of files that already have them, simple backups of the others. -.It never , simple +.It Cm never , simple Always make simple backups. .El +.It Fl v , Fl Fl version +Causes +.Nm +to print out its revision header and patch level. .It Xo -.Fl x Ns Aq Ar number , -.Fl Fl debug Aq Ar number +.Fl x Ar number , +.Fl Fl debug Ar number .Xc Sets internal debugging flags, and is of interest only to .Nm patchers. -.It Fl z , Fl Fl suffix +.It Xo +.Fl z Ar backup-ext , +.Fl Fl suffix Ar backup-ext +.Xc Causes the next argument to be interpreted as the backup extension, to be used in place of .Qq .orig . |