Gentoo Archives: gentoo-user

From: james <garftd@×××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] flag icu
Date: Wed, 15 Aug 2018 18:30:16
Message-Id: 3fcf4bfd-f058-6d9c-d23e-9ab4ce2e4820@verizon.net
In Reply to: Re: [gentoo-user] flag icu by "Corentin “Nado” Pazdera"
1 On 08/13/18 13:14, Corentin �Nado� Pazdera wrote:
2 > August 13, 2018 6:58 PM, "james" <garftd@×××××××.net> wrote:
3 >
4 >> Here's what I got running your script::
5 >>
6 >> /etc # /root/profile-explorer.sh
7 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
8 >> /usr/portage/profiles/base/packages
9 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
10 >> *>=sys-apps/baselayout-2
11 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
12 >> *>=sys-apps/findutils-4.4
13 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
14 >> *>=sys-devel/patch-2.7
15 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
16 >> /usr/portage/profiles/default/linux/packages
17 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
18 >> /usr/portage/profiles/base/packages
19 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
20 >> *>=sys-apps/baselayout-2
21 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
22 >> *>=sys-apps/findutils-4.4
23 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
24 >> *>=sys-devel/patch-2.7
25 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
26 >> /usr/portage/profiles/default/linux/packages
27 >>
28 >> Manually looking a the
29 >
30 > Seems weird, also no need to run it as root...
31 > Here's my output for comparison :
32 >
33 > ```
34 > % ./profile-explorer.sh
35 > [+] EROOT : /
36 > [+] PORTDIR : /var/db/repos/gentoo
37 > [+] CURPROFILE: default/linux/amd64/17.0
38 > [+] EAPI : 5
39 >
40 > [+] packages (@system)
41 > /var/db/repos/gentoo/profiles/base/packages
42 > /var/db/repos/gentoo/profiles/default/linux/packages
43 > ```
44 >
45 > And the `explored-packages` file should symply contain a copy of the different inherited packages
46 > files.
47 >
48 >> less /etc/portage/package.use/explored-packages:
49 >> /usr/portage/profiles/base/packages
50 >>
51 >> I see:
52 >> # Old ICU is unsupported. ICU 58 only remains for 13.0 based profiles.
53 >> <dev-libs/icu-59
54 >> <dev-libs/icu-layoutex-59
55 >>
56 >> But the system has::
57 >>
58 >> [I] dev-libs/icu .... 60.2
59 >>
60 >> equery uses icu
61 >>
62 >> gives me similar info:
63 >>
64 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
65 >> /usr/portage/profiles/base/packages
66 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
67 >> *>=sys-apps/baselayout-2
68 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
69 >> *>=sys-apps/findutils-4.4
70 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
71 >> *>=sys-devel/patch-2.7
72 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
73 >> /usr/portage/profiles/default/linux/packages
74 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
75 >> /usr/portage/profiles/base/packages
76 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
77 >> *>=sys-apps/baselayout-2
78 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
79 >> *>=sys-apps/findutils-4.4
80 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
81 >> *>=sys-devel/patch-2.7
82 >> --- Invalid atom in /etc/portage/package.use/explored-packages:
83 >> /usr/portage/profiles/default/linux/packages
84 >> [ Legend : U - final flag setting for installation]
85 >> [ : I - package is installed with flag ]
86 >> [ Colors : set, unset ]
87 >> * Found these USE flags for dev-libs/icu-60.2:
88 >> U I
89 >> + + abi_x86_32 : 32-bit (x86) libraries
90 >> - - debug : Enable extra debug codepaths, like asserts and extra
91 >> output. If
92 >> you want to get meaningful backtraces see
93 >>
94 >> https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
95 >> - - doc : Add extra documentation (API, Javadoc, etc). It is
96 >> recommended to
97 >> enable per package instead of globally
98 >> + + examples : Install examples, usually source code
99 >> - - static-libs : Build static versions of dynamic libraries as well
100 >>
101 >> Which begs the Q1} can I get rid of the flag icu? What are
102 >> consequences, as a baseline system flag, of it's removal ?
103 >>
104 >> less /usr/portage/profiles/base/packages
105 >> show me more of what the @system set contains. Very interesting and
106 >> useful. I'm thinking of aggregation of those listed packages
107 >> and some basic (ascii) table form (equery,emerge, eix) parsed listing
108 >> of the default and current flag settings. A "verification" tool
109 >> if you like. Surely it would help if this info was (is?) more readily
110 >> available and organized for folks that need a systematic approach, like
111 >> heterogeneous HPC clusters. The tools exist for 'ad-hoc' and one off,
112 >> but more of an organized representation at least at the set level.
113 >>
114 >> I feel like there is an existing tool that can yield all of this
115 >> information, as it is on a current system. I've read where there are
116 >> efforts to clean up the packages and default flags used in @system,
117 >> so the bare minimum list per arch/profiles would ultimately be
118 >> a useful listing, particular for my HPC. In HPC less is always faster
119 >> and better, as it is in security and so many more aspects of CS.
120 >>
121 >> Obviosly, I have a few things to fix on this (fragile) system, but
122 >> that'll happen as I'm at the beginning stages of auto_installs of
123 >> minimized systems. What are your plans for you little script?
124 >>
125 >> Just to match equery uses <flag> and such?
126 >>
127 >> Here's a cutie:
128 >> /usr/portage/profiles/default/linux/amd64/package.use.mask
129 >>
130 >> # Mike Frysinger <vapier@g.o> (08 May 2016)
131 >> # This target supports VTV #547040.
132 >>> =sys-devel/gcc-4.9 -vtv
133 >>
134 >> # Mike Frysinger <vapier@g.o> (21 Oct 2014)
135 >> # This target supports ASAN/etc... #504200.
136 >> sys-devel/gcc -sanitize
137 >>
138 >> And where was it that the processor/arch flags are now listed?
139 >>
140 >> tia,
141 >> James
142 >> cat
143 >
144 > To check impact on negating icu on your system : `USE="-icu" emerge -puDU --with-bdeps=y world`
145 >
146 > And concerning processor/arch flags I�d suggest keep exploring profiles, take a look at
147 > make.defaults files.
148 > Here the different files you can find according to PMS
149 > https://dev.gentoo.org/~ulm/pms/head/pms.html#x1-430005.2
150 >
151 > --
152 > Corentin �Nado� Pazdera
153 >
154 >
155
156 Yea, it's now working::
157
158 $ ./profile-explorer.sh
159 [+] EROOT : /
160 [+] PORTDIR : /usr/portage
161 [+] CURPROFILE: default/linux/amd64/17.0
162 [+] EAPI : 5
163
164 [+] packages (@system)
165 /usr/portage/profiles/base/packages
166 /usr/portage/profiles/default/linux/packages
167
168
169
170 So the explored-packages file looks complete (45)
171 for my current minimize workstation (lxde) amd64 .
172
173
174 So now parsing out these package listings with the current or default
175 flag settings; I'm going to have to marinate on that. I actually need
176 the reference (current default) flags once. But a method for dynamic
177 verification of gentoo systems that ask to join a cluster, will have to
178 have these packages/flags verified to join (down the road issue).
179 amd64 is ok for now). Ideas on finding the default @system flag settings?
180
181 Maybe find a amd64-stage-3 to unpack and parse out that data?
182 Looking at the list of (45), the virtuals can be ignored, as there are
183 no flags to set? The exact version installed is not present in that
184 reported list. Some packages like gcc could be difficult with my
185 pedestrian sed|awk|sort|uniq skills with regular expressions. Oh well
186 time for a review...
187
188 Would the parsing 'metadata.xml' per package be the easiest way to get
189 the total list of flags for a given package (ebuild) ?
190 Suggestions are welcome.
191
192 thx Corentin,
193
194
195
196 James