[gentoo-pms] [PATCH 15/28] EAPI 7 drops --host-root in favor of -b, -d, and -r

[Michał Górny]

From: James Le Cuirot <chewi@g.o>

Bug: https://bugs.gentoo.org/317337
---
 eapi-differences.tex |  8 +++++---
 pkg-mgr-commands.tex | 30 ++++++++++++++++++++----------
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/eapi-differences.tex b/eapi-differences.tex
index af28b7a..ace1f55 100644
--- a/eapi-differences.tex
+++ b/eapi-differences.tex
@@ -202,8 +202,8 @@ Most utilities die & \compactfeatureref{die-on-failure} &
 \t{dohtml} & \compactfeatureref{banned-commands} &
     Yes & Yes & Yes & Yes & Banned \\
 
-Option \t{-{}-host-root} & \compactfeatureref{host-root-option} &
-    No & No & Yes & Yes & Yes \\
+PM query options & \compactfeatureref{pm-query-options} &
+    No & No & \t{-{}-host-root} & \t{-{}-host-root} & \t{-b}, \t{-d}, \t{-r} \\
 
 \t{die -n} & \compactfeatureref{nonfatal-die} &
     No & No & No & Yes & Yes \\
@@ -368,7 +368,7 @@ EAPI 5 is EAPI 4 with the following changes:
 \item \t{USE} is calculated differently, \featureref{profile-iuse-inject}.
 \item \t{find} is guaranteed to be GNU, \featureref{gnu-find}.
 \item \t{best_version} and \t{has_version} support the \t{-{}-host-root} option,
-    \featureref{host-root-option}.
+    \featureref{pm-query-options}.
 \item \t{econf} adds \t{-{}-disable-silent-rules}, \featureref{econf-options}.
 \item \t{doheader} and \t{newheader} support, \featureref{doheader}.
 \item \t{new*} can read from standard input, \featureref{newfoo-stdin}.
@@ -417,6 +417,8 @@ EAPI 7 is EAPI 6 with the following changes:
 \item \t{econf} adds \t{-{}-with-sysroot}, \featureref{econf-options}.
 \item \t{BDEPEND}, \featureref{bdepend}.
 \item \t{BROOT}, \featureref{broot}.
+\item \t{best_version} and \t{has_version} drops the \t{-{}-host-root} option in favor of the
+  \t{-b}, \t{-d}, and \t{-r} options, \featureref{pm-query-options}.
 \end{compactitem}
 
 \ChangeWhenAddingAnEAPI{7}
diff --git a/pkg-mgr-commands.tex b/pkg-mgr-commands.tex
index 6a4415d..8ab8175 100644
--- a/pkg-mgr-commands.tex
+++ b/pkg-mgr-commands.tex
@@ -84,27 +84,37 @@ These commands are used to extract information about the system. Ebuilds must no
 these commands in parallel with any other package manager command. Ebuilds must not run any of
 these commands once the current phase function has returned.
 
-\featurelabel{host-root-option} In EAPIs listed in table~\ref{tab:foo-version-host-root-table} as
-supporting option \t{-{}-host-root}, this flag as the first argument will cause the query to apply
-to the host root instead of \t{ROOT}.
+\featurelabel{pm-query-options} In EAPIs listed in table~\ref{tab:pm-query-options-table}
+as supporting options \t{-b}, \t{-d}, and \t{-r}, these flags as the first argument will cause
+the query to apply to locations targetted by \t{BDEPEND}, \t{DEPEND}, and \t{RDEPEND} respectively.
+When none of these options are given, \t{-r} is assumed.
+
+In EAPIs listed in table~\ref{tab:pm-query-options-table} as supporting option \t{-{}-host-root},
+this flag as the first argument will cause the query to apply to the host root. Otherwise, it
+applies to \t{ROOT}.
+
 \begin{description}
 \item[has_version] Takes exactly one package dependency specification as an argument. Returns
-    true if a package matching the specification is installed in \t{ROOT}, and false otherwise.
+    true if a package matching the specification is installed, and false otherwise.
 \item[best_version] Takes exactly one package dependency specification as an argument. If a
     matching package is installed, prints the category, package name and version of the highest
     matching version; otherwise, prints an empty string. The exit code is unspecified.
 \end{description}
 
 \ChangeWhenAddingAnEAPI{7}
-\begin{centertable}{EAPIs supporting \t{-{}-host-root} for \t{*_version} commands}
-    \label{tab:foo-version-host-root-table}
-    \begin{tabular}{ll}
+\begin{centertable}{Package manager query command options supported by EAPIs}
+    \label{tab:pm-query-options-table}
+    \begin{tabular}{lllll}
       \toprule
       \multicolumn{1}{c}{\textbf{EAPI}} &
-      \multicolumn{1}{c}{\textbf{\t{*_version} supports \t{-{}-host-root}?}} \\
+      \multicolumn{1}{c}{\textbf{\t{-{}-host-root}?}} &
+      \multicolumn{1}{c}{\textbf{\t{-b}?}} &
+      \multicolumn{1}{c}{\textbf{\t{-d}?}} &
+      \multicolumn{1}{c}{\textbf{\t{-r}?}} \\
       \midrule
-      0, 1, 2, 3, 4     & No  \\
-      5, 6              & Yes \\
+      0, 1, 2, 3, 4     & No  & No  & No  & No  \\
+      5, 6              & Yes & No  & No  & No  \\
+      7                 & No  & Yes & Yes & Yes \\
       \bottomrule
     \end{tabular}
 \end{centertable}
-- 
2.14.2