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Diffstat (limited to 'docs/cpt.texi')
| -rw-r--r-- | docs/cpt.texi | 143 |
1 files changed, 142 insertions, 1 deletions
diff --git a/docs/cpt.texi b/docs/cpt.texi index 9a9974f..7c1a95f 100644 --- a/docs/cpt.texi +++ b/docs/cpt.texi @@ -106,7 +106,9 @@ CPT Library * Option parsing:: Easy way of parsing options with cpt-lib * Message functions:: Communicate to users * Text functions:: Manipulate or check text +* Portability functions:: Functions to replace non-POSIX commands * System Functions:: +* Package Functions:: Manipulate, or query anything related to packages Option parsing @@ -126,11 +128,26 @@ Text functions * @samp{contains()}:: Check if a "string list" contains a word * @samp{regesc()}:: Escape regular expression characters * @samp{pop()}:: Remove an item from a string list +* @samp{sepchar()}:: Separate characters from a string + +Portability functions + +* @samp{_seq()}:: 'seq(1)' but no newline +* @samp{_stat()}:: 'stat %U' replacement +* @samp{_readlinkf()}:: 'readlink -f' replacement System Functions * @samp{as_root()}:: Run a command as the root user +Package Functions + +* @samp{pkg_owner()}:: Check which package owns the given file +* @samp{pkg_isbuilt()}:: Check whether the given package is built +* @samp{pkg_lint()}:: Check whether a package directory fits the standards +* @samp{pkg_find()}:: Query package locations +* @samp{pkg_gentree}:: Generate a dependency tree for the given package + @end detailmenu @end menu @@ -888,7 +905,9 @@ package manager library. * Option parsing:: Easy way of parsing options with cpt-lib * Message functions:: Communicate to users * Text functions:: Manipulate or check text +* Portability functions:: Functions to replace non-POSIX commands * System Functions:: +* Package Functions:: Manipulate, or query anything related to packages @end menu @node Calling the library @@ -1048,6 +1067,7 @@ Following functions are used to manipulate, check, or interact with text. * @samp{contains()}:: Check if a "string list" contains a word * @samp{regesc()}:: Escape regular expression characters * @samp{pop()}:: Remove an item from a string list +* @samp{sepchar()}:: Separate characters from a string @end menu @node @samp{contains()} @@ -1087,8 +1107,70 @@ pop foo from $LIST pop foo from foo baz bar # Returns baz bar @end example +@node @samp{sepchar()} +@subsection @samp{sepchar()} + +This function can be used to separate characters from the given string without +resorting to external resources. + +@example +sepchar mystring +# Prints: +# m +# y +# s +# t +# r +# i +# n +# g +@end example + +@node Portability functions +@section Portability functions + +These helper functions are used so that we don't depend on non-POSIX programs for +certain functionality. They are prefixed with the @samp{_} character. + +@menu +* @samp{_seq()}:: 'seq(1)' but no newline +* @samp{_stat()}:: 'stat %U' replacement +* @samp{_readlinkf()}:: 'readlink -f' replacement +@end menu + +@node @samp{_seq()} +@subsection @samp{_seq()} + +This function is similar to @samp{seq(1)} except that it only takes a single argument +and doesn't print any newlines. It is suitable to be used in @samp{for} loops. + +@example +_seq 5 +# Prints: +# 1 2 3 4 5 +@end example + +@node @samp{_stat()} +@subsection @samp{_stat()} + +This function imitates @samp{stat %U}. @samp{stat} isn't defined by POSIX, and this is +also a GNU extension. This function returns the owner of a file. If the owner +cannot be found, it will return @samp{root}. + +@node @samp{_readlinkf()} +@subsection @samp{_readlinkf()} + +This function was taken from @uref{https://github.com/ko1nksm/readlinkf, POSIX sh readlinkf library by Koichi Nakashima}. +@samp{readlink} is also not defined by POSIX, so this function uses @samp{ls} to follow +symbolic links until it reaches the actual file. + @node System Functions -@section System Functions +@section @strong{TODO} System Functions + +@itemize +@item +Add description +@end itemize @menu * @samp{as_root()}:: Run a command as the root user @@ -1104,6 +1186,8 @@ following order: @enumerate @item +@samp{sls} +@item @samp{sudo} @item @samp{doas} @@ -1111,4 +1195,61 @@ following order: @samp{su} @end enumerate +@node Package Functions +@section @strong{TODO} Package Functions + +Obviously, package functions are the most important ones for @samp{cpt-lib}, those +are the ones you will use to build, to query, to manipulate, or to otherwise +interact with packages. + +@menu +* @samp{pkg_owner()}:: Check which package owns the given file +* @samp{pkg_isbuilt()}:: Check whether the given package is built +* @samp{pkg_lint()}:: Check whether a package directory fits the standards +* @samp{pkg_find()}:: Query package locations +* @samp{pkg_gentree}:: Generate a dependency tree for the given package +@end menu + +@node @samp{pkg_owner()} +@subsection @samp{pkg_owner()} + +This function can be used to determine the owner of a package. The first +argument is used for flags that will be passed to @samp{grep}, and the second one is +for the file query. Rest of the arguments can be used in order to specify the +manifests to be used, but it is optional. @samp{pkg_owner()} will search for all the +installed packages if no other arguments are given. + +@example +# Example +pkg_owner -lFx /usr/bin/grep # Returns 'busybox' + +# An example call made by `pkg_fix_deps()` to figure out whether the built +# package contains the file it depends. +pkg_owner -l "/$@{dep#/@}\$" "$PWD/manifest" >/dev/null && continue +pkg_owner -l "/$@{dep#/@}\$" "$@@" ||: +@end example + +@node @samp{pkg_isbuilt()} +@subsection @samp{pkg_isbuilt()} + +This function returns with success when the given package has a built tarball +with the matching version and release strings from the repository. + +@node @samp{pkg_lint()} +@subsection @samp{pkg_lint()} + +This function checks whether a given package fits the proper package +specification. This function @strong{does not return with failure, it exits outright} +if it fails. + +@node @samp{pkg_find()} +@subsection @strong{TODO} @samp{pkg_find()} + +@samp{pkg_find()} + +@node @samp{pkg_gentree} +@subsection @strong{TODO} @samp{pkg_gentree} + +Keep in mind /etc/cpt-base + @bye
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